CN103452543A - Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model - Google Patents
Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model Download PDFInfo
- Publication number
- CN103452543A CN103452543A CN2013103787457A CN201310378745A CN103452543A CN 103452543 A CN103452543 A CN 103452543A CN 2013103787457 A CN2013103787457 A CN 2013103787457A CN 201310378745 A CN201310378745 A CN 201310378745A CN 103452543 A CN103452543 A CN 103452543A
- Authority
- CN
- China
- Prior art keywords
- horizontal well
- rock core
- core
- permeability
- artificial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 239000011435 rock Substances 0.000 claims abstract description 79
- 230000035699 permeability Effects 0.000 claims abstract description 75
- 238000012360 testing method Methods 0.000 claims description 34
- 239000006004 Quartz sand Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- 238000011160 research Methods 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 14
- 238000013461 design Methods 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 10
- 239000002734 clay mineral Substances 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 9
- 238000004088 simulation Methods 0.000 description 12
- 239000011159 matrix material Substances 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229940021013 electrolyte solution Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a method for manufacturing a fractured horizontal well pattern model and the fractured horizontal well pattern model. The method comprises the following steps: selecting a core from natural outcrop cores; cutting the selected rock core into a pre-designed shape, and arranging a vertical well and a horizontal well on the rock core; forming a fracture on the core; filling an artificial rock core with permeability determined according to dimensionless diversion capacity of the crack into the crack; and filling the horizontal well with an artificial rock core with permeability determined according to the pressure drop of the horizontal well.
Description
Technical field
The present invention relates to make method and the pressure break Horizontal Well pessimistic concurrency control of pressure break Horizontal Well pessimistic concurrency control, relate in particular to method and the pressure break Horizontal Well pessimistic concurrency control of making low permeability reservoir pressure break Horizontal Well pessimistic concurrency control.
Background technology
Horizontal well is as an advanced technology of oil-gas field development, be applied to nearly all type of oil gas reservoirs such as comprising limit bottom water reservoir, heavy crude reservoir, fractured reservoir, low-permeability oil deposit, natural gas pool, become and improve oil field development benefit, one of important means of transforming mode of economic growth.
In the developmental research of horizontal well, an important channel is physical analogy.Physical analogy can be used for reproducing the percolation law of reservoir fluid in rock, studies various driving phenomenons and mechanism, instructs the design of oilfield development program with preferred, for improving oil recovery, is significant.With field experiment, compare, physical analogy has low, the consuming time advantage such as short, easy to operate of expense.
The method of the physical analogy of pressure break horizontal well patterns mainly contains at present: sandpack column, horizontal well electrical analogue.In sandpack column, use the artificial core simulation matrix of being made by quartz sand, with the cutting seam, fill this artificial core simulation fracture, with metal tube or cutting dead slot Simulated Water horizontal well.Use while by quartz sand, making artificial core simulation matrix, because artificial rock core of filling can't reach the compaction of natural core, while being used for simulating low permeability reservoir, can't reach the low-permeability of natural core, and pore structure is also different with natural core, this factor of clay mineral content can't be considered in sandpack column at all.It is similar to prototype that this just causes sandpack column can't accomplish at aspects such as matrix pore throat structure, non-linear, sensitiveness, especially, when the simulation low permeability reservoir, has very large problem.While with cutting seam, filling the artificial core simulation fracture that quartz sand makes, still do not consider the similar of fracture condudtiviy and prototype.With metal tube or cutting dead slot Simulated Water horizontal well the time, all horizontal well is considered to the congruence of unlimited flow conductivity, do not consider the pressure loss in the horizontal well pit shaft.When these problems cause with sandpack column simulation pressure break horizontal well patterns, can't accomplish the similar of model and prototype, cause experimental result inaccurate.
In the horizontal well electrical analogue, by electrolyte solutions simulate matrix, use the conductor sheet simulation fracture, with wire module pseudo level well.By electrolyte solutions simulate matrix, used medium is uniform, distribution of charges is also uniform, and in test, electric current reaches stable state in moment, therefore the process that electrical simulation experiment is simulated is single-phase liquid steady seepage process in homogeneous formation, can not be to seepage flow in bad ground, unsteady seepage, the horizontal well development processes such as multi-phase fluid seepage flow are simulated effectively, but also can be subject to the impact of electrolytic effect, and, due to the self structure impact, also can't the internal drop of dummy level pit shaft lose the impact on production capacity.
Due to above reason, need the method for a kind of brand-new making pressure break Horizontal Well pessimistic concurrency control of invention, pressure break horizontal well patterns physical model, enable to accomplish that model is similar as much as possible to prototype, reaches and improve the experiment degree of accuracy, the purpose that guide field is developed.
Summary of the invention
Current existing pressure break horizontal well patterns physical simulation system is not considered fracture condudtiviy and the impact of horizontal well droop loss on testing, and is difficult to poroperm characteristics, nonlinear characteristic and the sensitiveness feature of simulation low permeability reservoir.
The present invention is designed mainly for above problem, the object of the invention is to, and a kind of method and pressure break Horizontal Well pessimistic concurrency control of making pressure break Horizontal Well pessimistic concurrency control is provided, and makes it possible to realize that fracture condudtiviy is similar to prototype with the horizontal well droop loss.
Another object of the present invention is to, a kind of method and pressure break Horizontal Well pessimistic concurrency control of making pressure break Horizontal Well pessimistic concurrency control is provided, can realize that poroperm characteristics, nonlinear characteristic and sensitiveness feature etc. are similar to prototype.
In order to achieve the above object, the method for making pressure break Horizontal Well pessimistic concurrency control of the present invention, comprise the steps: to choose rock core from the natural outcrop rock core; Selected rock core is cut into to the shape of design in advance, arrange straight well and horizontal well on rock core; Form crack on rock core; Insert the artificial core with permeability definite according to crack zero dimension flow conductivity in crack; Insert the artificial core with permeability definite according to the horizontal well pressure drop in horizontal well.
In said method, in choosing the step of rock core, be handled as follows: the dull and stereotyped rock core of natural outcrop is carried out at least one in degree of porosity test, permeability test, non-linear test, clay content step, pore throat structured testing, and analyze its non-homogeneity, non linear fluid flow through porous medium curve, starting pressure gradient, stress sensitivity feature, thereby choose the rock core the highest with the goal in research similarity degree.
In said method, the described step of choosing rock core comprises: choose the dull and stereotyped rock core of rectangle natural outcrop, from the dull and stereotyped rock core of natural outcrop, x, the y direction of four jiaos are got respectively a little rock core post, amount to 8; Every little rock core post is carried out to the test of degree of porosity and air permeability, and analyze the non-homogeneity of the dull and stereotyped rock core of natural outcrop; Little rock core post is carried out to the non linear fluid flow through porous medium test; Little rock core post is carried out to the clay mineral content test; Little rock core post is carried out to constant speed and press the mercury experiment, analyze its pore throat structure; According to the test data obtained in above test, choose rock core.
In said method, when research object is on-the-spot actual well pattern, above test data is compared with the test data of on-the-spot rock core, select the highest rock core of similarity degree.
In said method, in in crack, filling the step of artificial core, according to crack zero dimension flow conductivity formula, calculating will be to the required permeability of the artificial core of filling in crack, the formula of the immediate artificial core of described required permeability of selecting permeability and calculating, be filled in crack according to selected formulated artificial core.
In said method, in in horizontal well, filling the step of artificial core, according to the horizontal well drop formula, calculating will be to the required permeability of the artificial core of filling in horizontal well, the formula of the immediate artificial core of described required permeability of selecting permeability and calculating, be filled in horizontal well according to selected formulated artificial core.
In said method, the permeability of the formula of selective artificial core, the permeability of mixing made artificial core by quartz sand, epoxy resin, the alcohol of measuring in advance different meshes obtains.
In said method, when selecting the formula of artificial core, with reference to pre-rendered permeability and the relation curve between quartzy Grains number, this relation curve is in the situation that the volume ratio of quartz sand, epoxy resin, alcohol is the relation curve that predetermined volume ratio is drawn.
In addition, the present invention also provides the above-mentioned each side of a kind of use pressure break Horizontal Well pessimistic concurrency control that method is made.
The present invention is by measuring the permeability of the made artificial core of different quartz sand and epoxy resin, alcohol proportioning, according to crack zero dimension flow conductivity formula and horizontal well pressure distribution formula, determine in crack and horizontal well and fill the required permeability of artificial core, therefore can realize that fracture condudtiviy is similar to prototype with the horizontal well droop loss.And, by using the natural outcrop rock core, determine the parameters such as physical dimension, degree of porosity, permeability, pore throat structure, saturation ratio, non linear fluid flow through porous medium rule, clay mineral content of model according to the principle of similitude, therefore can realize that poroperm characteristics, nonlinear characteristic and sensitiveness feature etc. are similar to prototype.By above measure, improved the similarity degree of model and prototype, guarantee experimentation and on-the-spot similitude, and then improved the accuracy of pressure break horizontal well patterns physical simulation experiment, better guide field production.
The present invention can effectively simulate low permeability reservoir, describes more accurately horizontal well and crack, has strengthened the accuracy of experiment.
The accompanying drawing explanation
Fig. 1 is the flow chart of pressure break horizontal well patterns physical simulating method of the present invention.
Fig. 2 is that schematic diagram is put in the flat board little rock core drill fetch bit of appearing.
The specific embodiment
Understand for technical characterictic of the present invention, purpose and beneficial effect being had more clearly, now technical scheme of the present invention is carried out to following detailed description, but but can not be interpreted as the restriction to practical range of the present invention.
Below, with reference to accompanying drawing, embodiments of the present invention are described.Following detailed description comprises specific detailed content as an example.Obviously, even those skilled in the art can understand, increase various variations or change in following detailed content, increase this variation or content after changing and also do not exceed scope of the present invention.Therefore, below the various embodiments of explanation do not lose the generality of the invention of request right, the invention of request right are not applied to any restriction in addition yet.
As described in Figure 1, the method for making pressure break Horizontal Well pessimistic concurrency control of the present invention, mainly comprise the steps:
Choose rock core from the natural outcrop rock core;
Selected rock core is cut into to the shape of design in advance;
Arrange straight well and horizontal well on rock core;
Form crack on rock core;
Insert the artificial core with permeability definite according to crack zero dimension flow conductivity in crack;
Insert the artificial core with permeability definite according to the horizontal well pressure drop in horizontal well.
Below illustrate the processing of each step.
1. choose the step of rock core from the natural outcrop rock core
The dull and stereotyped rock core of natural outcrop is carried out at least one in degree of porosity test, permeability test, non-linear test, clay content step, pore throat structured testing, and analyze its non-homogeneity, non linear fluid flow through porous medium curve, starting pressure gradient, stress sensitivity feature, thereby choose the rock core the highest with the goal in research similarity degree.
Particularly, choose the dull and stereotyped rock core of rectangle natural outcrop, from the dull and stereotyped rock core of natural outcrop, x, the y direction of four jiaos are got respectively a little rock core post, amount to 8, as shown in Figure 2; Every little rock core post is carried out to the test of degree of porosity and air permeability, and analyze the non-homogeneity of the dull and stereotyped rock core of natural outcrop; Little rock core post is carried out to the non linear fluid flow through porous medium test; Little rock core post is carried out to the clay mineral content test; Little rock core post is carried out to constant speed and press the mercury experiment, analyze its pore throat structure; According to above test data, choose the rock core that research institute needs, when research object is on-the-spot actual well pattern, above test data is compared with the test data of on-the-spot rock core, select the highest rock core of similarity degree.
2. selected rock core is cut into to the step of the shape of design in advance
Need design level well well pattern according to research, when research object is on-the-spot actual well pattern, according to the prototype well pattern, by the geometric similarity well pattern that designs a model, when well pattern is more regular, can choose Unit 1/2 or 1/4 of former well pattern as research object; According to the rock core of selecting the research needs, according to the well pattern of design, rock core is cut into to required shape.
3. arrange the step of straight well and horizontal well on rock core
Arrange that on rock core in the step of straight well and horizontal well, rock core thickness can not be less than 20mm, otherwise is unfavorable for modelling.The bit drills cut-off well that is 4mm with diameter, drilling depth is that model thickness deducts 5mm, when research object is on-the-spot actual well pattern, according to prototype, presses the geometric similarity design straight well degree of depth, when the straight well in prototype runs through whole reservoir, the degree of depth deducts 5mm for model thickness; The annular saw cutting horizontal well that is 2mm with thickness, depth of cut is 7mm, and horizontal well is when the well pattern edge, and in the cutting of centre position, model side, horizontal well, when well pattern is middle, in the cutting of model end face, cuts antemarginal arch section, must be trimmed to rectangle with electric drill; The drill bit that is 4mm with diameter drills through the horizontal well vertical section in the horizontal well exit, and horizontal well, when edge of model, is linked up vertical section and horizontal segment and got final product, and horizontal well is when model is middle, and drilling depth is 7mm.
The numerical value of the diameter of above-described rock core thickness, drill bit, drilling depth, annular saw thickness, depth of cut etc. is only an example, can certainly adopt diameter, drilling depth, annular saw thickness, depth of cut of other rock core thickness, drill bit etc.
4. form the step in crack on rock core
Need design crack location, angle and length according to research, when research object is on-the-spot actual well pattern, press position, angle and the length in geometric similarity design crack according to prototype; The annular saw that is 2mm with thickness cutting crack, depth of cut can need designed, designed according to research, also can run through whole reservoir, cuts antemarginal arch section, must be trimmed to rectangle with electric drill.
The annular saw thickness 2mm here is only an example, also can adopt as required other thickness.
5. to the step of inserting the artificial core with permeability definite according to crack zero dimension flow conductivity in crack
In in crack, filling the step of artificial core, according to crack zero dimension flow conductivity formula, calculating will be to the required permeability of the artificial core of filling in crack, the formula of the immediate artificial core of described required permeability of selecting permeability and calculating, be filled in crack according to selected formulated artificial core.
Here, the permeability of the formula of selective artificial core is to make artificial core by the proportioning of the quartz sand by different meshes, epoxy resin, alcohol, and the permeability of this artificial core is measured.The formula of artificial core refers to quartz sand, the epoxy resin of the different meshes of making artificial core, the volume ratio of alcohol.This volume ratio can be 20:1:1, also can be made as required other ratios.
In addition, in order to clearly illustrate that the relation of quartzy Grains number and permeability, can, after the permeability of measuring artificial core, when the volume ratio of quartz sand, epoxy resin, alcohol is predetermined volume ratio, draw quartzy Grains number and permeability relation curve.When selecting the formula of artificial core, with reference to pre-rendered permeability and the relation curve between quartzy Grains number, this relation curve is in the situation that the volume ratio of quartz sand, epoxy resin, alcohol is the relation curve that predetermined volume ratio is drawn.Certainly, can also select by other means the formula of artificial core, for example the volume ratio of quartz sand, epoxy resin, alcohol, quartzy Grains number, permeability be made to table, show formula of selecting artificial core etc. with reference to this.As long as determine the formula of artificial core according to the relation between the formula of permeability and artificial core.
Described crack zero dimension flow conductivity formula is:
C
f＝k
fb/k
FL
In formula: C
ffor crack zero dimension flow conductivity, zero dimension; k
ffor fracture permeabgility, unit is 10
-3μ m
2; B is crack width, and unit is m; k
ffor matrix permeability, unit is 10
-3μ m
2; L is fracture length, and unit is m.
Here, C
fthe amount of horizontal well in-site measurement, matrix permeability k
fwith fracture length L be known amount.Obtain fracture permeabgility according to crack zero dimension flow conductivity formula, in crack, fill the required permeability of artificial core.
6. to the step of inserting the artificial core with permeability definite according to the horizontal well pressure drop in horizontal well
In in horizontal well, filling the step of artificial core, according to the horizontal well drop formula, calculating will be to the required permeability of the artificial core of filling in horizontal well, the formula of the immediate artificial core of described required permeability of selecting permeability and calculating, be filled in horizontal well according to selected formulated artificial core.
Here, the permeability of the formula of selective artificial core is to make artificial core by the proportioning of the quartz sand by different meshes, epoxy resin, alcohol, and the permeability of this artificial core is measured.The formula of artificial core refers to quartz sand, the epoxy resin of the different meshes of making artificial core, the volume ratio of alcohol.This volume ratio can be 20:1:1, also can be made as required other ratios.
In addition, in order to clearly illustrate that the relation of quartzy Grains number and permeability, can, after the permeability of measuring artificial core, when the volume ratio of quartz sand, epoxy resin, alcohol is predetermined volume ratio, draw quartzy Grains number and permeability relation curve.When selecting the formula of artificial core, with reference to pre-rendered permeability and the relation curve between quartzy Grains number, this relation curve is in the situation that the volume ratio of quartz sand, epoxy resin, alcohol is the relation curve that predetermined volume ratio is drawn.Certainly, can also select by other means the formula of artificial core, for example the volume ratio of quartz sand, epoxy resin, alcohol, quartzy Grains number, permeability be made to table, show formula of selecting artificial core etc. with reference to this.As long as determine the formula of artificial core according to the relation between the formula of permeability and artificial core.
Known have a multiple horizontal well drop formula, adopts following horizontal well drop formula in the present invention:
For N bar hydraulically created fracture, during calculating, horizontal well is divided into to N-1 section (only considering friction pressure drop when N=1).For the j section, the friction pressure drop caused due to pipe stream is:
Because the acceleration pressure drop cause of radially injecting of fluid is:
Therefore for the j section, stagnation pressure is reduced to:
Δp
w(j)＝Δp
1(j)+Δp
2(j)
In formula: the spacing that d is segmentation, unit is m; Q
j-1for front j-1 section flows into the integrated flux of this section, unit is m
3/ d; q
jfor the crack injection rate of this section, unit is m
3/ d; F is the coefficient of friction resistance, zero dimension; ρ is pit shaft inner fluid density, and unit is g/cm
3; D is mineshaft diameter, and unit is m.
Calculate the crack injection rate q of j section according to above-mentioned horizontal well drop formula
j, then according to Darcy formula, calculate permeability, in horizontal well, fill the required permeability k of artificial core.
Darcy formula:
In formula: k is permeability, and unit is 10
-3μ m
2; Q is flow (after calculating the flow in on-the-spot pit shaft, according to similarity criterion, being converted into laboratory evaluation), and unit is m
3/ d; μ is fluid viscosity, and unit is mPas; L is that fluid flows through passage length, and unit is m; A is for to flow through channel cross-sectional area (the pit shaft sectional area in model), and unit is m
2; The pressure reduction that Δ P is the passage two ends, unit is MPa.
It should be noted that, when to determine be the permeability of j section the time, the Q in Darcy formula is for calculating the crack injection rate q of j section according to above-mentioned horizontal well drop formula
j, the length that L is j section pit shaft in model, the Pressure Drop at the passage two ends of the j section that Δ P is interior with on-the-spot pit shaft is identical; When to determine be the permeability of pit shaft integral body the time, the summation of the crack injection rate q that Q in Darcy formula is each section of calculating according to above-mentioned horizontal well drop formula, the length that L is whole pit shaft, the Pressure Drop at the whole passage two ends that Δ P is interior with on-the-spot pit shaft is identical.
In addition, the method for making pressure break Horizontal Well pessimistic concurrency control of the present invention can also have following subsequent step:
Smear one deck cloud stone glue at the artificial core part surface, to guarantee the artificial core part, can not be exposed to outside;
Model is put into to baking oven, dry 72 hours by the temperature of 120 ℃;
With scolding tin, submerged cable one end is welded on the saturation ratio survey mark of model bottom surface, other end mark is numbered well as contact resistance rate measuring instrument;
With cloud stone glue, special-purpose joint is bonded on the well and pressure measurement point of model end face, guarantees that joint and rock core Contact position seepage can not occur;
With epoxy resin, whole model encapsulation is got up, guarantee that the part of model except the special joint outlet can not be exposed to outside.
Those skilled in the art are known, and these subsequent steps are not that the method for making pressure break Horizontal Well pessimistic concurrency control of the present invention is necessary.
By above step, can make pressure break Horizontal Well pessimistic concurrency control.This pressure break Horizontal Well pessimistic concurrency control, inserted the artificial core with permeability definite according to crack zero dimension flow conductivity in crack; Inserted the artificial core with permeability definite according to the horizontal well pressure drop in horizontal well.Therefore can realize that fracture condudtiviy is similar to prototype with the horizontal well droop loss.And, used the natural outcrop rock core in this pressure break Horizontal Well pessimistic concurrency control, the parameters such as the physical dimension of model, degree of porosity, permeability, pore throat structure, saturation ratio, non linear fluid flow through porous medium rule, clay mineral content are determined according to the principle of similitude, therefore can realize that poroperm characteristics, nonlinear characteristic and sensitiveness feature etc. are similar to prototype.This pressure break Horizontal Well pessimistic concurrency control is similar to prototype, has guaranteed experimentation and on-the-spot similitude, and then has improved the accuracy of pressure break horizontal well patterns physical simulation experiment, better guide field production.
Above, narrated method and the pressure break Horizontal Well pessimistic concurrency control of making pressure break Horizontal Well pessimistic concurrency control of the present invention.In addition, the computer program of realizing any combination of above-mentioned each treatment step is also effective as mode of the present invention.So-called computer program is exactly recording medium, device, equipment or the system of the codes that loaded program such as internet system (system that for example, comprises server and client terminal) of the recording medium (dvd media, hard disk media, storage medium etc.) of code, the computer of the code that has program recorded thereon, the code that has program recorded thereon of having program recorded thereon.In the case, in the mode of modules, above-mentioned each treatment step is installed, is recorded the program code by the module composition of this installation in computer program.
The program of any combination for each treatment step of realizing above-mentioned embodiment is also effective as mode of the present invention.By recording this program in the recording medium of embodied on computer readable, computer being read in and carry out the program recorded in this recording medium, reach purpose of the present invention.
Here, " computer " provides environment (or display environment) in the situation that utilize WWW system also to comprise homepage.In addition, so-called " recording medium of embodied on computer readable " is exactly the removable medium such as floppy disk, photomagneto disk, ROM, CD-ROM or is built in the storage devices such as hard disk in computer.In addition, so-called " recording medium of embodied on computer readable " also comprises the parts that keep within a certain period of time program, the volatile memory (RAM) of the inside computer system as server or client computer when via communication lines such as the network such as internet or telephone lines, sent program.
In addition, said procedure can be from the computer of this program of storage in storage device etc. via transmission medium or the carrier wave in utilizing transmission medium be sent to other computer.Here, " transmission medium " of convey program is exactly the medium that has the function of transmission information as the communication lines (order wire) such as the networks such as internet (communication network) or telephone line.In addition, said procedure can be used for realizing the part of above-mentioned functions.Can also be to realize the program of above-mentioned functions, so-called differential file (difference program) in the mode of the suite that recorded with computer.
Above, the preferred embodiment of the present invention has been described, but can have adopted various subs, deformations, equivalent as above-mentioned each treatment step.In the disclosed embodiment of this manual, in order to carry out one or more functions, parts can be replaced into to a plurality of parts, or can utilize parts to replace a plurality of parts.The suitably situation of effect has been removed not in such displacement in order to reach purpose of the present invention, such displacement within the scope of the invention.Therefore, scope of the present invention does not decide with reference to above-mentioned explanation, should decide according to claim, also comprises the four corner of equivalent.As long as do not get rid of clearly, each inscape is exactly the quantity more than 1 or 1 in the claims.In the claims except adopting " for～means " such statement situation about clearly putting down in writing, claim can not be interpreted as and comprise the restriction that means add function.
The term that this manual is used is only to illustrate that the situation of specific implementations is as purpose, and does not limit the present invention.In this manual, even while with singulative, using term, as long as clearly do not mean to get rid of plural form in context, this term similarly comprises plural form.
Above, the preferred embodiments of the present invention have been described, but the present invention is not limited to these examples.In the scope that does not break away from purport of the present invention, can carry out structure additional, omit, displacement and other change.The present invention is not limited to the foregoing description, and only by the scope of claim, is limited.
Claims (9)
1. a method of making pressure break Horizontal Well pessimistic concurrency control, the method comprises the steps:
Choose rock core from the natural outcrop rock core;
Selected rock core is cut into to the shape of design in advance,
Arrange straight well and horizontal well on rock core;
Form crack on rock core;
Insert the artificial core with permeability definite according to crack zero dimension flow conductivity in crack;
Insert the artificial core with permeability definite according to the horizontal well pressure drop in horizontal well.
2. method according to claim 1, wherein,
In choosing the step of rock core, be handled as follows:
The dull and stereotyped rock core of natural outcrop is carried out at least one in degree of porosity test, permeability test, non-linear test, clay content step, pore throat structured testing, and analyze its non-homogeneity, non linear fluid flow through porous medium curve, starting pressure gradient, stress sensitivity feature, thereby choose the rock core the highest with the goal in research similarity degree.
3. method according to claim 1 and 2, wherein,
The described step of choosing rock core comprises:
Choose the dull and stereotyped rock core of rectangle natural outcrop, from the dull and stereotyped rock core of natural outcrop, x, the y direction of four jiaos are got respectively a little rock core post, amount to 8;
Every little rock core post is carried out to the test of degree of porosity and air permeability, and analyze the non-homogeneity of the dull and stereotyped rock core of natural outcrop;
Little rock core post is carried out to the non linear fluid flow through porous medium test;
Little rock core post is carried out to the clay mineral content test;
Little rock core post is carried out to constant speed and press the mercury experiment, analyze its pore throat structure;
According to the test data obtained in above test, choose rock core.
4. method according to claim 3, wherein,
When research object is on-the-spot actual well pattern, above test data is compared with the test data of on-the-spot rock core, select the highest rock core of similarity degree.
5. method according to claim 1, wherein
In in crack, filling the step of artificial core, according to crack zero dimension flow conductivity formula, calculating will be to the required permeability of the artificial core of filling in crack, the formula of the immediate artificial core of described required permeability of selecting permeability and calculating, be filled in crack according to selected formulated artificial core.
6. method according to claim 1, wherein,
In in horizontal well, filling the step of artificial core, according to the horizontal well drop formula, calculating will be to the required permeability of the artificial core of filling in horizontal well, the formula of the immediate artificial core of described required permeability of selecting permeability and calculating, be filled in horizontal well according to selected formulated artificial core.
7. according to the described method of claim 5 or 6, wherein,
The permeability of the formula of selective artificial core, the permeability of mixing made artificial core by quartz sand, epoxy resin, the alcohol of measuring in advance different meshes obtains.
8. method according to claim 7, wherein,
When selecting the formula of artificial core, with reference to pre-rendered permeability and the relation curve between quartzy Grains number, this relation curve is in the situation that the volume ratio of quartz sand, epoxy resin, alcohol is the relation curve that predetermined volume ratio is drawn.
9. the pressure break Horizontal Well pessimistic concurrency control that the described method of any one with claim 1-8 is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378745.7A CN103452543B (en) | 2013-08-27 | 2013-08-27 | Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378745.7A CN103452543B (en) | 2013-08-27 | 2013-08-27 | Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103452543A true CN103452543A (en) | 2013-12-18 |
| CN103452543B CN103452543B (en) | 2015-12-09 |
Family
ID=49735326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378745.7A Active CN103452543B (en) | 2013-08-27 | 2013-08-27 | Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103452543B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114062A (en) * | 2015-09-21 | 2015-12-02 | 山东科技大学 | Testing device for simulating permeability rule of low-permeability horizontal well and testing method |
| CN106198181A (en) * | 2015-05-07 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of fractured horizontal well physical modeling's sample and preparation method thereof |
| CN106323703A (en) * | 2015-06-19 | 2017-01-11 | 中国石油化工股份有限公司 | Manufacturing method of compact oil reservoir horizontal well multistage staged fracturing physical model |
| CN106401549A (en) * | 2015-07-31 | 2017-02-15 | 中国石油化工股份有限公司 | Method of building influence plate on horizontal well production effect by crack and well trajectory angle |
| CN106409114A (en) * | 2016-10-13 | 2017-02-15 | 中国石油化工股份有限公司 | Manufacturing method of low-permeability oil reservoir artificial crack two-dimensional sand-filling model |
| CN107121314A (en) * | 2016-02-24 | 2017-09-01 | 中国石油化工股份有限公司 | Compact oil reservoir flat plate model preparation method with microcrack |
| CN107561244A (en) * | 2017-04-20 | 2018-01-09 | 中国石油大学(华东) | Controllable seam net-matrix double medium model of a kind of crack three-dimensional dimension and preparation method thereof |
| CN109138953A (en) * | 2017-06-27 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of seam method of multi-scale facture |
| CN110388201A (en) * | 2018-03-13 | 2019-10-29 | 西南石油大学 | A kind of synthetic core sample production method for simulating hydraulically created fracture true form |
| CN111734381A (en) * | 2020-08-04 | 2020-10-02 | 东北石油大学 | Natural crack-containing fracturing and seam-making device for simulating injection-production relation of multiple injection-production well pattern |
| CN111852430A (en) * | 2020-08-04 | 2020-10-30 | 东北石油大学 | Fracturing fracture-making experimental device for simulating injection-production relation of multiple injection-production well pattern |
| CN112302608A (en) * | 2020-10-23 | 2021-02-02 | 中国石油天然气股份有限公司 | Horizontal well pre-pressure injection fluid development method based on three-dimensional fracturing well pattern |
| CN112392470A (en) * | 2019-08-12 | 2021-02-23 | 中国石油天然气股份有限公司 | Oil reservoir vertical gas injection physical simulation device |
| CN114464067A (en) * | 2022-03-08 | 2022-05-10 | 西南石油大学 | Multi-scale net-sewing experimental device and experimental method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009155127A1 (en) * | 2008-06-18 | 2009-12-23 | Schlumberger Canada Limited | Heterogeneous earth models for a reservoir field |
| CN101793137A (en) * | 2010-01-29 | 2010-08-04 | 西南石油大学 | Oil-water displacement efficiency experimental method of longitudinal and planar nonhomogeneous slab models |
| CN102108860A (en) * | 2010-12-30 | 2011-06-29 | 中国石油化工股份有限公司胜利油田分公司地质科学研究院 | Visualized fracture network oil displacement model and manufacturing method thereof |
| CN102562011A (en) * | 2012-01-17 | 2012-07-11 | 中国石油天然气股份有限公司 | High-pressure outcrop plane model experiment system |
-
2013
- 2013-08-27 CN CN201310378745.7A patent/CN103452543B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009155127A1 (en) * | 2008-06-18 | 2009-12-23 | Schlumberger Canada Limited | Heterogeneous earth models for a reservoir field |
| CN101793137A (en) * | 2010-01-29 | 2010-08-04 | 西南石油大学 | Oil-water displacement efficiency experimental method of longitudinal and planar nonhomogeneous slab models |
| CN102108860A (en) * | 2010-12-30 | 2011-06-29 | 中国石油化工股份有限公司胜利油田分公司地质科学研究院 | Visualized fracture network oil displacement model and manufacturing method thereof |
| CN102562011A (en) * | 2012-01-17 | 2012-07-11 | 中国石油天然气股份有限公司 | High-pressure outcrop plane model experiment system |
Non-Patent Citations (3)
| Title |
|---|
| 沈瑞: "低渗透油藏水平井渗流规律与油藏工程研究", 《中国科学院研究生院博士学位论文》 * |
| 滕起，等: "特低渗透油藏井组开发过程物理模拟", 《深圳大学学报理工版》 * |
| 薛成国: "特低渗透储层大型物理模拟试验研究", 《中国科学院研究生院硕士学位论文》 * |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198181A (en) * | 2015-05-07 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of fractured horizontal well physical modeling's sample and preparation method thereof |
| CN106198181B (en) * | 2015-05-07 | 2018-12-21 | 中国石油化工股份有限公司 | A kind of fractured horizontal well physical analogy sample and preparation method thereof |
| CN106323703A (en) * | 2015-06-19 | 2017-01-11 | 中国石油化工股份有限公司 | Manufacturing method of compact oil reservoir horizontal well multistage staged fracturing physical model |
| CN106323703B (en) * | 2015-06-19 | 2019-06-14 | 中国石油化工股份有限公司 | The production method of compact oil reservoir horizontal well multistage subsection pressure break physical model |
| CN106401549A (en) * | 2015-07-31 | 2017-02-15 | 中国石油化工股份有限公司 | Method of building influence plate on horizontal well production effect by crack and well trajectory angle |
| CN105114062B (en) * | 2015-09-21 | 2020-08-04 | 山东科技大学 | Experimental device and experimental method for simulating seepage law of low-permeability horizontal well |
| CN105114062A (en) * | 2015-09-21 | 2015-12-02 | 山东科技大学 | Testing device for simulating permeability rule of low-permeability horizontal well and testing method |
| CN107121314A (en) * | 2016-02-24 | 2017-09-01 | 中国石油化工股份有限公司 | Compact oil reservoir flat plate model preparation method with microcrack |
| CN106409114A (en) * | 2016-10-13 | 2017-02-15 | 中国石油化工股份有限公司 | Manufacturing method of low-permeability oil reservoir artificial crack two-dimensional sand-filling model |
| CN107561244A (en) * | 2017-04-20 | 2018-01-09 | 中国石油大学(华东) | Controllable seam net-matrix double medium model of a kind of crack three-dimensional dimension and preparation method thereof |
| CN109138953A (en) * | 2017-06-27 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of seam method of multi-scale facture |
| CN109138953B (en) * | 2017-06-27 | 2020-07-31 | 中国石油化工股份有限公司 | Seam making method for multi-scale cracks |
| CN110388201A (en) * | 2018-03-13 | 2019-10-29 | 西南石油大学 | A kind of synthetic core sample production method for simulating hydraulically created fracture true form |
| CN112392470A (en) * | 2019-08-12 | 2021-02-23 | 中国石油天然气股份有限公司 | Oil reservoir vertical gas injection physical simulation device |
| CN112392470B (en) * | 2019-08-12 | 2024-04-30 | 中国石油天然气股份有限公司 | Oil reservoir vertical gas injection physical simulation device |
| CN111734381A (en) * | 2020-08-04 | 2020-10-02 | 东北石油大学 | Natural crack-containing fracturing and seam-making device for simulating injection-production relation of multiple injection-production well pattern |
| CN111852430A (en) * | 2020-08-04 | 2020-10-30 | 东北石油大学 | Fracturing fracture-making experimental device for simulating injection-production relation of multiple injection-production well pattern |
| CN112302608A (en) * | 2020-10-23 | 2021-02-02 | 中国石油天然气股份有限公司 | Horizontal well pre-pressure injection fluid development method based on three-dimensional fracturing well pattern |
| CN112302608B (en) * | 2020-10-23 | 2023-02-10 | 中国石油天然气股份有限公司 | Horizontal well before-pressure injection fluid development method based on three-dimensional fracturing well pattern |
| CN114464067A (en) * | 2022-03-08 | 2022-05-10 | 西南石油大学 | Multi-scale net-sewing experimental device and experimental method thereof |
| CN114464067B (en) * | 2022-03-08 | 2024-05-31 | 西南石油大学 | Multi-scale stitch net experimental device and experimental method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103452543B (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103452543B (en) | Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model | |
| Meng et al. | A critical review on fundamental mechanisms of spontaneous imbibition and the impact of boundary condition, fluid viscosity and wettability | |
| CN107038268B (en) | Method for determining water flooding wave sum coefficient of heterogeneous reservoir five-point well pattern | |
| Goggin et al. | A theoretical and experimental analysis of minipermeameter response including gas slippage and high velocity flow effects | |
| CN108691526B (en) | Test the method for determining the coarse crack acid etch flow conductivity of carbonate rock hydrocarbon reservoir | |
| CN105021506A (en) | Pore network model-based calculation method of three-phase relative permeability | |
| CN104237098A (en) | Method for measuring gradient of rock starting pressure | |
| CN103267721A (en) | Method for evaluating water containing characteristic and occurrence state of compact sandstone storage layer aperture | |
| CN102865059A (en) | Method and device for predicting capacity of crack-pore type oil reservoir | |
| CN104895550A (en) | Tight gas fracturing horizontal well numerical value well testing model building and solving method | |
| CN103470250B (en) | A kind of method and apparatus measuring formation pore structure and fluid behaviour | |
| CN103939091A (en) | Radial flow displacement physical model system | |
| CN110306960B (en) | Fracturing fluid imbibition production-increasing simulation method and device for double-hole double-permeability medium reservoir | |
| CN105738252A (en) | Measurement method of flowable opening degree limit of thickened oil in cracks | |
| CN105547967A (en) | Indoor measuring device for permeability tensor of fissure medium system | |
| CN110163497A (en) | Four gas reservoir fluid method of discrimination of thunder based on T2-T1 two dimension cross plot | |
| CN106019403B (en) | From being born from reservoir formation porosity measurement method | |
| CN106897531A (en) | A kind of method for quantitatively evaluating of hyposmosis limestone reservoir permeability | |
| CN112145165B (en) | Microcrack-pore type reservoir dynamic and static permeability conversion method | |
| CN105019875B (en) | Human-cutting high slope interleaving agent evaluation method | |
| CN103247215B (en) | Low-permeability oil reservoir multi-layer commingled production physical simulation system and method | |
| CN105319153A (en) | Measuring method of liquid full pressure gradient-flow relation in low-permeability reservoir | |
| CN110879196A (en) | Oil-water phase permeability testing method for oil-rich condensate gas reservoir | |
| CN204267017U (en) | A kind of oil-water separation metering device | |
| CN103670392A (en) | Coal bed gas flow condition rapid recognition method based on starting pressure gradient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |