CN104612637A - Dump injection process of separate-layer distributional injection oilfield - Google Patents
Dump injection process of separate-layer distributional injection oilfield Download PDFInfo
- Publication number
- CN104612637A CN104612637A CN201510083702.5A CN201510083702A CN104612637A CN 104612637 A CN104612637 A CN 104612637A CN 201510083702 A CN201510083702 A CN 201510083702A CN 104612637 A CN104612637 A CN 104612637A
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- water
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- injection
- separate
- water source
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 title claims abstract description 18
- 239000007924 injection Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 230000002745 absorbent Effects 0.000 abstract 3
- 239000002250 absorbent Substances 0.000 abstract 3
- 238000007789 sealing Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a dump injection process of a separate-layer distributional injection oilfield. The process includes the steps of 1, performing perforating to parts, corresponding to water source layers and absorbent layers, of a casing; 2, setting a packer in the casing; 3, tripping in a separate-layer water distribution string which is provided with a plurality of testing and regulation tubes, in one-to-one correspondence with the water source layers and the absorbent layers, and a cylinder setting tube which is arranged above the uppermost one of the testing and regulation tubes; 4, subjecting the water source layers and the absorbent layers to sealing examination; 5, steplessly adjusting the flow of each testing and regulation tube to finish separate-layer flow testing and distribution of the oilfield; 6, allowing dump injection during the cylinder setting tube sealed. Separate-layer distributional injection of multiple injection layers in the dump injection process is achieved through the separate-layer water distribution string, the injection of each layer is steplessly adjusted, and the need of the oilfield for separate-layer distributional injection is met; permanent-cable separate-layer water distribution string or a concentric testing and regulation type separate-layer water injection string is used, and water distribution is continuously controllable.
Description
Technical field
The present invention relates to a kind of oil field flood suction technique, particularly a kind of multi-zone flow regulating oil field flood suction technique.
Background technology
On stream, stratum energy can decline in oil field, needs to carry out waterflooding extraction to maintain the stable yields in oil field.Current Schlumberger company and Baker company designs have gone out flood suction technique, and tubing string in lower going-into-well, is realized adopting one deck and notes one deck, therefore can only realize individual layer injection allocation together with various instrument, and costly; Its Flow-rate adjustment adopts liquid controling pipe line to regulate, for the level that has of jumping characteristic regulates.The method not only degree of regulation is lower, and can not meet the needs of part oil field layered injection allocation.
Summary of the invention
The present invention provides a kind of multi-zone flow regulating oil field flood suction technique for solving in known technology the technical problem that exists.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is: a kind of multi-zone flow regulating oil field flood suction technique, adopt the following condition of water injection well in oil fields demand fulfillment of this technique: simultaneously containing at least one water source layer and at least two water accepting layers, and the energy of water source layer and the energy demand of water accepting layer meet: the water of the water source layer that energy is minimum can flow automatically and enter the maximum water accepting layer of energy; This technique adopts following steps: one) penetrate out the part that sleeve pipe is corresponding with water source layer and water accepting layer; Two) set packer in sleeve pipe, by water source layer and water accepting layer one by one packing open; Three) layering water distribution tubing string is entered under; Described layering water distribution tubing string is provided with water source layer and water accepting layer several are surveyed and adjust seating nipple and a lock core to be located cylinder one to one, and described lock core is located cylinder and is positioned at and goes up one most and survey the top of adjusting seating nipple; Four) what complete all water sources layer and all water accepting layers tests envelope operation; Five) step-less adjustment is all surveys the flow adjusting seating nipple, completes the allotment of full well stratified flow rate test; Six) under lock core is located the state that cylinder is in shutoff, flood suction is realized.
Described step 3): layering water distribution tubing string adopts cable permanent setting type, before entering under cable permanent setting type layering water distribution tubing string or under enter after, be located in cylinder at described lock core and throw in band lock core plugging device; Described step 5): adopt and forever put all flows surveying tune seating nipple of cable output signal control, adopt and forever put the real-time traffic signal that cable transmission surveys tune seating nipple.
Described step 3): layering water distribution tubing string adopts and surveys mode with one heart; Described step 5): regulate the survey corresponding with each water source layer and each water filling layer to adjust seating nipple by entering measurement and adjustment instrument device under wireline operation, and read its flow in real time, until Flow-rate adjustment is to desired value; Then in oil pipe, each water filling layer corresponding and each water source layer throw in flow meter, are finally located in cylinder at lock core and throw in band lock core blanking plug.
The advantage that the present invention has and good effect are: adopt layering water distribution tubing string to realize the multi-zone flow regulating of the multiple implanted layer of flood suction technique, and each layer water injection rate can step-less adjustment, meets the needs of oil field layered injection allocation.And adopt cable permanent setting type layering water distribution tubing string or survey mode layering water distribution tubing string with one heart, the controlled continuously of water distribution quantity can be realized.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention;
Fig. 2 is the schematic flow sheet of the embodiment of the present invention 1;
Fig. 3 is the schematic flow sheet of the embodiment of the present invention 2.
In figure: 1, oil pipe; 2, lock core plugging device is with; 3, lock core is located cylinder; 4, packer; 5, tune seating nipple is surveyed; 6, packer; 7, forever cable is put; 8, cable; 9, measurement and adjustment instrument; 10, sleeve pipe; 11, water source layer; 12, water accepting layer.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of multi-zone flow regulating oil field flood suction technique, adopt the following condition of water injection well in oil fields demand fulfillment of this technique: simultaneously containing at least one water source layer 11 and at least two water accepting layers 12, and the energy demand of the energy of water source layer 11 and water accepting layer 12 meets: the water of the water source layer 11 that energy is minimum can flow automatically and enter the maximum water accepting layer of energy 12.
This technique adopts following steps:
One) part that sleeve pipe 10 is corresponding with water source layer 11 and water accepting layer 12 is penetrated out;
Two) set packer 4,6 in sleeve pipe 10, by water source layer 11 and water accepting layer 12 one by one packing open;
Three) layering water distribution tubing string is entered under; Described layering water distribution tubing string is provided with water source layer 11 and water accepting layer 12 several are surveyed and adjust seating nipple 5 and a lock core to be located cylinder 3 one to one, and described lock core is located cylinder 3 and is positioned at and goes up one most and survey the top of adjusting seating nipple 5;
Four) what complete all water sources layer 11 and all water accepting layers 12 tests envelope operation;
Five) regulate all flows surveying tune seating nipple 5, complete the allotment of full well stratified flow rate test;
Six) under lock core is located the state that cylinder 3 is in shutoff, flood suction is realized.
Embodiment 1:
Refer to Fig. 2, layering water distribution tubing string adopts cable permanent setting type.The further scheme of above-mentioned technique is: described step 3): layering water distribution tubing string adopts cable permanent setting type, before entering under cable permanent setting type layering water distribution tubing string or under enter after, be located cylinder 3 in throw at described lock core and be with lock core plugging device 2; Described step 5): adopt and forever put the flow that cable 7 outputs signal control all survey tune seating nipples 5, adopt and forever put the real-time traffic signal that cable 7 transmits survey tune seating nipple 5.
Embodiment 2:
Refer to Fig. 3, layering water distribution tubing string adopts and surveys mode with one heart.The further scheme of above-mentioned technique is: described step 3): layering water distribution tubing string adopts and surveys mode with one heart; Described step 5): regulate the survey corresponding with each water source layer 11 and each water filling layer 12 to adjust the flow of seating nipple 5 by entering measurement and adjustment instrument device 9 under wireline operation, and read its flow in real time, until Flow-rate adjustment is to desired value; Measurement and adjustment instrument device 9 adopts cable 8 to provide power and signal transmission.Then in oil pipe 1, each water filling layer 12 corresponding and each water source layer 11 throw in flow meter, and be finally located in cylinder 3 at lock core and throw in band lock core blanking plug 2, isolated water active layer, ensures that nearly wellhead column is with no pressure.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (3)
1. a multi-zone flow regulating oil field flood suction technique, is characterized in that, adopts the following condition of water injection well in oil fields demand fulfillment of this technique:
Simultaneously containing at least one water source layer and at least two water accepting layers, and the energy of water source layer and the energy demand of water accepting layer meet: the water of the water source layer that energy is minimum can flow automatically and enter the maximum water accepting layer of energy;
This technique adopts following steps:
One) part that sleeve pipe is corresponding with water source layer and water accepting layer is penetrated out;
Two) set packer in sleeve pipe, by water source layer and water accepting layer one by one packing open;
Three) layering water distribution tubing string is entered under; Described layering water distribution tubing string is provided with water source layer and water accepting layer several are surveyed and adjust seating nipple and a lock core to be located cylinder one to one, and described lock core is located cylinder and is positioned at and goes up one most and survey the top of adjusting seating nipple;
Four) what complete all water sources layer and all water accepting layers tests envelope operation;
Five) step-less adjustment is all surveys the flow adjusting seating nipple, completes the allotment of full well stratified flow rate test;
Six) under lock core is located the state that cylinder is in shutoff, flood suction is realized.
2. multi-zone flow regulating oil field according to claim 1 flood suction technique, it is characterized in that, described step 3): layering water distribution tubing string adopts cable permanent setting type, before entering under cable permanent setting type layering water distribution tubing string or under enter after, be located in cylinder at described lock core and throw in band lock core plugging device; Described step 5): adopt and forever put all flows surveying tune seating nipple of cable output signal control, adopt and forever put the real-time traffic signal that cable transmission surveys tune seating nipple.
3. multi-zone flow regulating oil field according to claim 1 flood suction technique, is characterized in that, described step 3): layering water distribution tubing string adopts and surveys mode with one heart; Described step 5): regulate the survey corresponding with each water source layer and each water filling layer to adjust seating nipple by entering measurement and adjustment instrument device under wireline operation, and read its flow in real time, until Flow-rate adjustment is to desired value; Then in oil pipe, each water filling layer corresponding and each water source layer throw in flow meter, are finally located in cylinder at lock core and throw in band lock core blanking plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083702.5A CN104612637A (en) | 2015-02-16 | 2015-02-16 | Dump injection process of separate-layer distributional injection oilfield |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083702.5A CN104612637A (en) | 2015-02-16 | 2015-02-16 | Dump injection process of separate-layer distributional injection oilfield |
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| CN104612637A true CN104612637A (en) | 2015-05-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649585A (en) * | 2016-01-27 | 2016-06-08 | 新疆江汉油田技术服务有限公司 | Flood suction integrated pipe column and operating process thereof |
| CN109882138A (en) * | 2017-12-06 | 2019-06-14 | 中国石油天然气股份有限公司 | Self-flowing water injection oil replacement exploitation device and method |
| CN111287716A (en) * | 2020-02-25 | 2020-06-16 | 中国海洋石油集团有限公司 | Downhole flow-assisting separate-layer water injection pipe column for offshore oil field |
| CN111425184A (en) * | 2020-03-31 | 2020-07-17 | 凯跃(天津)测控技术有限公司 | Well completion permanent-placed type layered automatic measuring and regulating water injection oil extraction autonomous measuring system |
| CN113417614A (en) * | 2021-07-05 | 2021-09-21 | 湖北茂思晟石油新技术开发有限公司 | Underground cable-free throwing and fishing type intelligent water distribution construction process |
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| US20040129427A1 (en) * | 2001-02-14 | 2004-07-08 | Allan Sharp | Downhole pump |
| CN101956544A (en) * | 2009-07-21 | 2011-01-26 | 上海石油天然气有限公司 | Method for oil extraction in multi-bottom and multi-branch well by artesian injection |
| US7896079B2 (en) * | 2008-02-27 | 2011-03-01 | Schlumberger Technology Corporation | System and method for injection into a well zone |
| CN102418505A (en) * | 2011-12-20 | 2012-04-18 | 西安思坦仪器股份有限公司 | Cable type water injection well allocation device and method |
| CN102562013A (en) * | 2012-02-21 | 2012-07-11 | 西安思坦仪器股份有限公司 | Automatic modulation and monitoring zonal injection method for water injection well and system thereof |
| CN102650205A (en) * | 2012-04-27 | 2012-08-29 | 中国石油天然气股份有限公司 | Oil extraction method and oil extraction well system for converting bottom water reservoir oil well into gravity flow water injection well |
| CN202745838U (en) * | 2012-07-04 | 2013-02-20 | 中国石油天然气股份有限公司 | Same well water production and injection process pipe column |
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2015
- 2015-02-16 CN CN201510083702.5A patent/CN104612637A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040129427A1 (en) * | 2001-02-14 | 2004-07-08 | Allan Sharp | Downhole pump |
| US7896079B2 (en) * | 2008-02-27 | 2011-03-01 | Schlumberger Technology Corporation | System and method for injection into a well zone |
| CN101956544A (en) * | 2009-07-21 | 2011-01-26 | 上海石油天然气有限公司 | Method for oil extraction in multi-bottom and multi-branch well by artesian injection |
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| CN102650205A (en) * | 2012-04-27 | 2012-08-29 | 中国石油天然气股份有限公司 | Oil extraction method and oil extraction well system for converting bottom water reservoir oil well into gravity flow water injection well |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649585A (en) * | 2016-01-27 | 2016-06-08 | 新疆江汉油田技术服务有限公司 | Flood suction integrated pipe column and operating process thereof |
| CN109882138A (en) * | 2017-12-06 | 2019-06-14 | 中国石油天然气股份有限公司 | Self-flowing water injection oil replacement exploitation device and method |
| CN111287716A (en) * | 2020-02-25 | 2020-06-16 | 中国海洋石油集团有限公司 | Downhole flow-assisting separate-layer water injection pipe column for offshore oil field |
| CN111287716B (en) * | 2020-02-25 | 2022-06-03 | 中国海洋石油集团有限公司 | Downhole flow-assisting separate-layer water injection pipe column for offshore oil field |
| CN111425184A (en) * | 2020-03-31 | 2020-07-17 | 凯跃(天津)测控技术有限公司 | Well completion permanent-placed type layered automatic measuring and regulating water injection oil extraction autonomous measuring system |
| CN113417614A (en) * | 2021-07-05 | 2021-09-21 | 湖北茂思晟石油新技术开发有限公司 | Underground cable-free throwing and fishing type intelligent water distribution construction process |
| CN113417614B (en) * | 2021-07-05 | 2024-03-15 | 湖北茂思晟石油新技术开发有限公司 | Underground cable-free casting-fishing type intelligent water distribution construction process |
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Application publication date: 20150513 |