CN107725046A - The apparatus and method of capillary force during a kind of evaluation reservoir water - Google Patents

The apparatus and method of capillary force during a kind of evaluation reservoir water Download PDF

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Publication number
CN107725046A
CN107725046A CN201710965248.5A CN201710965248A CN107725046A CN 107725046 A CN107725046 A CN 107725046A CN 201710965248 A CN201710965248 A CN 201710965248A CN 107725046 A CN107725046 A CN 107725046A
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China
Prior art keywords
rock core
plug
pressure
capillary force
displacement
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CN201710965248.5A
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Chinese (zh)
Inventor
李海涛
李斌斌
李颖
刘权
崔小江
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Southwest Petroleum University
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Southwest Petroleum University
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Priority to CN201710965248.5A priority Critical patent/CN107725046A/en
Publication of CN107725046A publication Critical patent/CN107725046A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/20Displacing by water
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/007Measuring stresses in a pipe string or casing
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/008Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by injection test; by analysing pressure variations in an injection or production test, e.g. for estimating the skin factor

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention provides a kind of apparatus and method for evaluating capillary force during reservoir water, the capillary force on stratum during actual reservoir waterflooding can be simulated.One gum cover is set in the cylinder of core holding unit;Taper sheath is in the end of gum cover;Seal pressure cap is connected through a screw thread with cylinder, fixed plug;Plug is connected through a screw thread with rock core plug, adjusts rock core length;The inner of rock core plug is in gum cover;For Thief zone metal partion (metp) between plug and rock core, its radius and tangential direction have circulation passage;Screen cloth is between the Thief zone metal partion (metp) and rock core plug of the port of export;The outer pipe nipple line anchor tip of rock core plug;Ring crimp head and cylinder external connection.The step of this method provide concrete operations experimental facilities and flow, and how to obtain capillary force and the curve of saturation degree.The present invention solves the influence that semi-permeable plate or semipermeable membrane are brought, while also reduces the influence of liquid effect of end surface so that experimental data is more accurately and reliably.

Description

The apparatus and method of capillary force during a kind of evaluation reservoir water
Technical field
The invention belongs to oil-gas field development laboratory experiment technical field;A kind of in particular it relates to evaluation reservoir water process The apparatus and method of middle capillary force.
Background technology
Capillary force is capillary pressure, refers to add present on two kinds of immiscible fluid curved interfaces in capillary Pressure.In oilfield explorating developing process, many properties such as rock pore structure, rock storage and collection performance, the profit of oil reservoir are satisfied Relation, oil displacement efficiency, the wetability of reservoir rock between degree and water to oil area height etc., are required for using capillary force data To determine.Therefore, it is to carry out the premise of oil and gas exploration and development accurately and effectively to obtain capillary force data.
The most frequently used method of measurement capillary force mainly has three kinds:Mercury injection method, centrifugal process and semi-permeable plate method.Mercury injection method is surveyed Examination speed is fast, and measurement range is big, but larger with oil reservoir actual conditions difference, pollutes environment, and rock core can not be reused.Centrifugal process Test equipment is more complicated with calculating, and measurement range is limited, and maximum pressure only has 1.4MPa.Semi-permeable plate method and reservoir condition Close, measurement accuracy is high, but can influence fluid distrbution in rock core.These methods, apply it is determined that hair during reservoir water During pipe power, Railway Project be present:(1) fluid-flow mode in test process under the type of flow of fluid and formation condition is not Together, such as most accurate semi-permeable plate method enters high-pressure fluid using one end, and other end closing oil phase can not flow out rock core.When After oil phase reaches hydrophobicity semi-permeable plate, just start to assemble at semi-permeable plate surface and in rock core, cause in rock core Aqueous phase and rock core outside aqueous phase be disconnected connection.It is obvious that semi-permeable plate can significantly affect the liquid distribution in rock core, no Stratum condition and parameter can more really be reacted;(2) these methods can not test capillary force under reservoir conditions, therefore measure There is some difference under capillary force and oil reservoir truth;(3) corresponding with various method of testings test oil reservoir capillary force Equipment is also a lot, but the capillary force being all unable in actual response and accurate evaluation the injecting process.Such as dynamic hollow billet force test device, Usual test object is quartz sand or soil (i.e. sandpack column), and pore permeability is all very high, can not formation testing or people Make the dynamic capillary force of flow in low permeability core
The content of the invention
The invention provides a kind of apparatus and method of capillary force during evaluation reservoir water, underground fluid is specially tested During flow regime, corresponding capillary force.Experimental facilities is simple to operate, with strong points, can be tested under reservoir conditions, Capillary force test and evaluation can be carried out to hyposmosis core, while decrease the error that existing experimental facilities is brought.
The invention provides a kind of equipment of capillary force during evaluation reservoir water, including displacement pump, intermediate receptacle, pressure Power table, core holding unit, metering device and baking oven.
Displacement pump, for adjusting different displacement pressures, the liquid in intermediate receptacle is driven according to no displacement pressure For into rock core.Core holding unit is by cylinder, seal pressure cap, plug, rock core plug, screen cloth, taper sheath, gum cover, Thief zone metal Dividing plate, ring crimp head, pipeline anchor tip, screen cloth and baking oven composition.One gum cover, gum cover are set in the cylinder of core holding unit Inside it is put into tested rock core.A taper sheath is connected in the end of gum cover, to fix gum cover and sealing ring pressure.Cylinder and seal pressure cap Be connected through a screw thread, seal pressure cap fixed plug, plug is connected through a screw thread with rock core plug, rock core plug the inner in gum cover, A Thief zone metal partion (metp) is separated between rock core, between the Thief zone metal partion (metp) and rock core plug of the port of export, also one Individual screen cloth, prevent from shaking out in the injecting process.Ring crimp head and cylinder external connection, connect in the centre bore and cylinder of ring crimp head Logical, outer end is connected with confined pressure pump, applies confined pressure to core holding unit by confined pressure pump.The core holding unit left and right ends are symmetrical, But the more screen clothes of the port of export.Rock core length can be adjusted by the screw thread between rock core plug and plug.Pipeline is fixed Joint seals pipeline in the outer end of rock core plug, allows liquid to be flowed out from pipeline.There are a baking oven, rise temperature outside core holding unit Spend to reservoir temperature.
Thief zone metal partion (metp) is between rock core and rock core plug, has circulation logical in its radial direction and tangential direction Road, so as to which the liquid for allowing access into or flowing out can be uniformly distributed in dividing plate.Thief zone metal partion (metp) absolute permeability compares rock Heart absolute permeability is much higher.Thief zone metal partion (metp) replaces semi-permeable plate or semipermeable membrane, solve semi-permeable plate or The influence that semipermeable membrane is brought.Because the metal partion (metp) permeability is very high, in order to prevent shaking out, screen cloth is fixed on the port of export After metal partion (metp).
Further, the invention provides a kind of method of capillary force during evaluation reservoir water, comprise the following steps:
Step 1, rock core is drilled through from scene;
Step 2, rock core is cleaned, recovers core wetability and establishes original water saturation;
Step 3, rock core is loaded into core holding unit, i.e. removal of core plug 4, screen cloth 10 and Thief zone metal partion (metp) 7, by rock The heart is put into clamper, is sequentially placed into Thief zone metal partion (metp) 7, screen cloth 10 and rock core plug 4.Raise confined pressure, increasing inlet And back pressure, Fluid pressure in back pressure suffered by rock core and rock core is reached reservoir condition;Open baking oven 11 and raise temperature to oil reservoir temperature Degree;Step 4, increase the displacement pressure of displacement pump step by step, by water drive for rock core is entered, long enough is kept under each displacement pressure Time, until oil can not by displacement come out untill;Then pressure is applied under next displacement pressure, until oil can not be driven Untill out;Pressurization stops when the oil in rock core is residual oil state.It is recorded in meter under each displacement pressure Oil pump capacity, calculate corresponding water saturation, be depicted as the curve of saturation degree and displacement pressure, be i.e. capillary force and saturation degree Curve.In displacement process, experimental provision can consume substantial amounts of water, need to recycle water.
Beneficial effects of the present invention:
Thief zone metal partion (metp) and screen cloth in core holding unit of the present invention, can specially test underground fluid flow regime When, corresponding capillary force.Experimental facilities is simple to operate, with strong points, can be tested under reservoir conditions, can also be to low Permeate core and carry out capillary force test and evaluation, while solve the influence that semi-permeable plate or semipermeable membrane are brought, also weaken The influence of liquid effect of end surface, substantially eliminating the error that existing experimental facilities is brought.
Brief description of the drawings
Fig. 1 is core holding unit structural profile illustration of the present invention;
Fig. 2 is Thief zone metal partion (metp) structural profile illustration of the present invention;
Fig. 3 is experimental provision structural representation of the present invention.
In figure, 1- cylinders, 2- seal pressure caps, 3- plugs, 4- rock core plugs, 5- taper sheaths, 6- gum covers, 7- Thief zones metal every Plate, 8- ring crimp heads, 9- pipeline anchor tips, 10- screen clothes, 11- baking ovens.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention is described in further details.
As shown in figure 1, core holding unit is by cylinder 1, seal pressure cap 2, plug 3, rock core plug 4, taper sheath 5, gum cover 6, height Percolated metal dividing plate 7, ring crimp head 8, pipeline anchor tip 9, screen cloth 10 and baking oven 11 form.
There is a gum cover 6 in cylinder 1, tested rock core can be put into gum cover 6.Outside retainer ring crimp head 8 and cylinder 1 Connection, the centre bore of ring crimp head 8 connect with the inside of cylinder 1, and the top of ring crimp head 8 can be with connecting pipeline, pipeline and confined pressure pump Connection, confined pressure can be applied to rock core by confined pressure pump.
Core holding unit left and right ends are symmetrical, but the more screen clothes 10 of the port of export.A cone is connected in the end of gum cover 6 Shape set 5, to fix gum cover 6 and sealing ring pressure.The both ends of cylinder 1 are connected through a screw thread with seal pressure cap 2, with fixed plug 3.Plug 3 are connected through a screw thread with rock core plug 4, and the length of rock core can be adjusted by the screw thread between plug 3 and rock core plug 4.Rock core The inner of plug 4 is in gum cover 6, by confined pressure to seal rock core.Thief zone metal partion (metp) 7 is between rock core plug 4 and rock core, screen cloth 10 between the metal partion (metp) 7 and rock core plug 4 of the port of export.Pipeline anchor tip 9 seals pipeline in the outer end of rock core plug 4, allows liquid Body flows out from pipeline.There are a baking oven 11, rise temperature to reservoir condition outside core holding unit.
As shown in Fig. 2 Thief zone metal partion (metp) 7 is made of stainless steel material.The thickness of Thief zone metal partion (metp) 7 is 3mm, channel diameter 2-3mm, there is circulation passage in radial direction and tangential direction, runner 2-4mm is wide, to allow access into or flow The liquid gone out can be uniformly distributed in dividing plate, reduce the influence etc. of effect of end surface.The absolute permeability of Thief zone metal partion (metp) 7 It is more much higher than rock core absolute permeability.After the Thief zone metal partion (metp) 7 of the port of export, screen cloth 10, fixed sand grains are added.
Specific implementation step is as follows:
(1) rock core is made:Rock sample is obtained at the scene, then drills through the rock core for meeting requirement of experiment;
(2) clean and dry rock core:Rock core is cleaned with water and petroleum ether, then dries rock core with baking box;
(3) recover core wettability and establish initial oil water saturation:First by the fully saturated water of rock core, then rock core satisfied And oil, until constraint water state;
(4) rock core is installed:Removal of core plug 4, screen cloth 10 and Thief zone metal partion (metp) 7, rock core is put into clamper, according to It is secondary to be put into Thief zone metal partion (metp) 7, screen cloth 10 and rock core plug 4.The screw thread between rock core plug 4 and plug 3 is adjusted, is located at rock core The middle part of core holding unit;
(5) equipment is adjusted and checked, confined pressure is added by confined pressure pump, back pressure is controlled by back-pressure valve, makes back pressure suffered by rock core Reach reservoir condition with Fluid pressure in rock core;
(6) baking oven 11, rise temperature to reservoir temperature are opened;
(7) rock core displacement test:Increase the displacement pressure of displacement pump step by step, by water drive for rock core is entered, in each displacement The sufficiently long time is kept under pressure, untill oil can not be come out by displacement;Then pressure is applied under next displacement pressure Power, untill oil can not be come out by displacement;The oil being eventually until in rock core comes out (constraint water state) by complete displacement.Use tricks Measuring device is recorded in the oil pump capacity under each displacement pressure, calculates corresponding water saturation, is depicted as saturation degree and displacement pressure Curve, i.e. capillary force and saturation degree curve.Rock core displacement test is carried out again, is repeated the above steps, you can is obtained multigroup Experimental data.

Claims (3)

1. it is a kind of evaluate reservoir water during capillary force apparatus and method, it is characterised in that core holding unit by cylinder 1, Seal pressure cap 2, plug 3, rock core plug 4, taper sheath 5, gum cover 6, Thief zone metal partion (metp) 7, ring crimp head 8, pipeline anchor tip 9th, screen cloth 10 and baking oven 11 form.
2. the apparatus and method of capillary force during a kind of evaluation reservoir water as claimed in claim 1, it is characterised in that high Percolated metal dividing plate 7 is made of stainless steel material;The thickness of Thief zone metal partion (metp) 7 is 3mm, channel diameter 2-3mm, half Footpath direction and tangential direction have a circulation passage, and runner 2-4mm is wide.
3. the apparatus and method of capillary force during a kind of evaluation reservoir water as claimed in claim 1, it is characterised in that bag Include following steps:
Step 1, rock core is drilled through from scene;
Step 2, rock core is cleaned, recovers core wetability and establishes original water saturation;
Step 3, rock core is loaded into core holding unit, i.e. removal of core plug 4, screen cloth 10 and Thief zone metal partion (metp) 7, rock core is put Enter in clamper, be sequentially placed into Thief zone metal partion (metp) 7, screen cloth 10 and rock core plug 4.Raise confined pressure, increasing inlet and return Pressure, makes Fluid pressure in back pressure suffered by rock core and rock core reach reservoir condition;Temperature is raised to reservoir temperature;
Step 4, increase the displacement pressure of displacement pump step by step, by water drive for rock core is entered, keep enough under each displacement pressure The long time, untill oil can not be come out by displacement;Then pressure is applied under next displacement pressure, until oil can not be by Untill displacement comes out;Pressurization stops when the oil in rock core is residual oil state.Each displacement pressure is recorded in meter Under oil pump capacity, calculate corresponding water saturation, be depicted as the curve of saturation degree and displacement pressure, i.e. capillary force and saturation degree Curve.In displacement process, experimental provision can consume substantial amounts of water, need to recycle water.
CN201710965248.5A 2017-10-17 2017-10-17 The apparatus and method of capillary force during a kind of evaluation reservoir water Pending CN107725046A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111021976A (en) * 2019-12-27 2020-04-17 西南石油大学 Low-permeability water-invasion gas reservoir failure development high-temperature high-pressure physical simulation experiment device and method
CN111141889A (en) * 2018-11-05 2020-05-12 安徽恩蔓智能科技有限公司 Intelligent water injection instrument
CN112179826A (en) * 2020-09-14 2021-01-05 中国石油大学(华东) Device for measuring dynamic capillary force of high-temperature and high-pressure rock core based on time domain reflection technology and experimental method
CN112630124A (en) * 2020-12-17 2021-04-09 中国石油大学(北京) High-temperature-resistant rock core holder and rock core pulse attenuation gas permeability test system thereof
CN113029898A (en) * 2021-02-22 2021-06-25 西南石油大学 Device and method for testing dynamic flow conductivity of crack and gas supply capacity of bedrock
CN113074862A (en) * 2021-03-05 2021-07-06 中国地质大学(北京) Porous medium capillary pressure measuring device and method containing gas hydrate
CN114965579A (en) * 2021-02-24 2022-08-30 中国石油化工股份有限公司 Oil, gas and water three-phase fluid saturation calibration test device and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202583323U (en) * 2012-05-25 2012-12-05 中国石油大学(华东) Clamp holder for semi-permeable partition board method to jointly detect capillary pressure resistivity
CN103698216A (en) * 2014-01-02 2014-04-02 西南石油大学 Capillary pressure stress sensitivity test device and capillary pressure stress sensitivity test method
CN205049454U (en) * 2015-09-17 2016-02-24 西南石油大学 Rock core holder
CN105372150A (en) * 2015-12-07 2016-03-02 中国地质大学(北京) Measurement method and apparatus of dynamic capillary pressure curve of oil reservoir
CN106324214A (en) * 2015-07-02 2017-01-11 中石化石油工程技术服务有限公司 Major-diameter core capillary pressure curve and bound water saturation measuring apparatus
US20170248506A1 (en) * 2016-02-25 2017-08-31 Robin Gupta Coreflood Testing System and Methods for Simultaneous Measurement of Key Core Properties

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202583323U (en) * 2012-05-25 2012-12-05 中国石油大学(华东) Clamp holder for semi-permeable partition board method to jointly detect capillary pressure resistivity
CN103698216A (en) * 2014-01-02 2014-04-02 西南石油大学 Capillary pressure stress sensitivity test device and capillary pressure stress sensitivity test method
CN106324214A (en) * 2015-07-02 2017-01-11 中石化石油工程技术服务有限公司 Major-diameter core capillary pressure curve and bound water saturation measuring apparatus
CN205049454U (en) * 2015-09-17 2016-02-24 西南石油大学 Rock core holder
CN105372150A (en) * 2015-12-07 2016-03-02 中国地质大学(北京) Measurement method and apparatus of dynamic capillary pressure curve of oil reservoir
US20170248506A1 (en) * 2016-02-25 2017-08-31 Robin Gupta Coreflood Testing System and Methods for Simultaneous Measurement of Key Core Properties

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111141889A (en) * 2018-11-05 2020-05-12 安徽恩蔓智能科技有限公司 Intelligent water injection instrument
CN111021976A (en) * 2019-12-27 2020-04-17 西南石油大学 Low-permeability water-invasion gas reservoir failure development high-temperature high-pressure physical simulation experiment device and method
CN111021976B (en) * 2019-12-27 2022-02-01 西南石油大学 High-temperature high-pressure physical simulation experiment method for development of low-permeability water-gas invasion reservoir failure
CN112179826A (en) * 2020-09-14 2021-01-05 中国石油大学(华东) Device for measuring dynamic capillary force of high-temperature and high-pressure rock core based on time domain reflection technology and experimental method
CN112630124A (en) * 2020-12-17 2021-04-09 中国石油大学(北京) High-temperature-resistant rock core holder and rock core pulse attenuation gas permeability test system thereof
CN113029898A (en) * 2021-02-22 2021-06-25 西南石油大学 Device and method for testing dynamic flow conductivity of crack and gas supply capacity of bedrock
CN113029898B (en) * 2021-02-22 2022-04-15 西南石油大学 Device and method for testing dynamic flow conductivity of crack and gas supply capacity of bedrock
CN114965579A (en) * 2021-02-24 2022-08-30 中国石油化工股份有限公司 Oil, gas and water three-phase fluid saturation calibration test device and method
CN113074862A (en) * 2021-03-05 2021-07-06 中国地质大学(北京) Porous medium capillary pressure measuring device and method containing gas hydrate

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