CN106522918A - Test operation tubular column capable of realizing direct-push kill well and stratum test method thereof - Google Patents
Test operation tubular column capable of realizing direct-push kill well and stratum test method thereof Download PDFInfo
- Publication number
- CN106522918A CN106522918A CN201610930868.0A CN201610930868A CN106522918A CN 106522918 A CN106522918 A CN 106522918A CN 201610930868 A CN201610930868 A CN 201610930868A CN 106522918 A CN106522918 A CN 106522918A
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- Prior art keywords
- well
- testing
- valve
- achieving
- kill
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000010998 test method Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000002253 acid Substances 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims description 13
- 230000004087 circulation Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 238000001802 infusion Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 230000020477 pH reduction Effects 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001556 precipitation Methods 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Landscapes
- 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)
- Geophysics (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a test operation tubular column capable of realizing direct-push kill and a stratum test method thereof. The process flow is as follows: after the pipe column is lowered to a preset depth → setting → reloading the well head → replacing acid liquid through a normally open valve → throwing a ball to close the normally open valve, carrying out perforation, acidification and blowout test operation → annular pressurization operation on a one-way well closing type circulating valve, well closing in the well → injecting plugging slurry in the pipe column, well killing, plugging → circulating → deblocking → tripping to obtain downhole data. The invention can realize multiple functions of perforation, acidification, testing, underground well shut-in re-pressing, direct push killing well plugging and the like, has simple and feasible structure, mainly provides great convenience, safety and reliability for later killing well plugging operation, meets the requirement of the reservoir killing well plugging construction operation which is easy to leak, reduces the economic loss caused by the complexity of killing well plugging and the like, and ensures the safety and controllability of construction.
Description
Technical field
The present invention relates to a kind of method for testing strata, more particularly to it is a kind of be capable of achieving the straight test jobs tubing string for pushing well and
Its method for testing strata.
Background technology
At present high temperature high pressure deep well test generally carries out operation using APR testing tools, define for many years a whole set of compared with
For fixed technique and tubular column structure, i.e. OMNI valves+RDS valves+LPR-N valves+manometer+hydraulic pressure bypass+safety joint+
RTTS packers.After the test jobs that drive a well terminate, suppressed by annular space, operate the disposable shut-in valve in down-hole string（RDS
Valve）So as to ball valve is closed, and separates oil pipe internal channel, and after closing well, the ball valve of downhole shut-in valve cannot be again turned on, inside tubing string
Passage is closed, two-way up and down not connect.Such tubular column structure and kit, it is impossible to adapt to follow-up kill-job plugging operation
Needs.Due to cannot by infusion leak stopping and kill-job mud in oil pipe, can only leading deblocking packer, solution is honored as a queen by packing
Annular clearance between device packing element and sleeve pipe is broken leak stopping slurry and carries out leak stopping.But the gap is very little, mud is poor by property, causes to block up
Leakage the activity duration it is long, efficiency is low, also, loss circulation material easily here put up a bridge, precipitation, cause tubing string card to bury wait down-hole complexity.
The content of the invention
It is an object of the invention to overcome the problems referred to above that prior art is present, there is provided a kind of to be capable of achieving the straight survey for pushing well
Examination working string and its method for testing strata.The present invention can realize perforation-acidifying-test-downhole closing press again-the straight well that pushes blocks up
The several functions such as leakage, not only simple possible in structure, predominantly later stage kill-job plugging operations are provided a great convenience, safety
It is reliable, to meet easily leakage reservoir kill-job blocking construction operation needs, reduce the Jing brought because of the complexity that kill-job leak stopping etc. is caused
Ji loss, ensures that construction safety is controllable.
For achieving the above object, the technical solution used in the present invention is as follows：
It is a kind of to be capable of achieving the straight test jobs tubing string for pushing well, it is characterised in that：By the oil pipe being sequentially connected from top to bottom, normally closed
Valve, unidirectional closing well formula circulating valve, normally open valve, manometer, safety joint, RTTS packers, oil pipe, screen casing and perforating gun group
Into.
It is a kind of to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：Technological process is：Tubing string is down to pre- depthkeeping
After degree → set → replacing well head → and normally open valve is closed for acid solution → pitching by normally open valve, carry out perforation, acidifying and open flow
Test jobs → applied pressure by annulus operates unidirectional closing well formula circulating valve, positive injection plugging slurry in downhole closing → tubing string, kill-job, leak stopping
→ circulation → deblocking → pulling out of hole obtains subsurface information.
The tubing string down to after desired depth, electrical measurement school depth.
Packer setting is completed, wellhead blowout preventor device is poured out, changed the outfit gas production wellhead, connect surface testing flow, by
The each equipment of a pair of flow processs and pipeline are qualified by design requirement pressure testing.
It is described to be replaced in acid solution by normally open valve, the test fluid on its top is substituted for by acid solution by normally open valve.
Normally open valve and circulation port are closed in pitching, and packer is carried out testing envelope；Apply hydraulic pressure in oil pipe after testing sealing lattice, draw
Quick-fried perforating gun, after the completion of perforation, carries out acidizing treatment and open flow discharge opeing, and production test is carried out after stablizing, and obtains yield data.
After being completed, apply hydraulic pressure in annular space, unidirectional closing well formula circulating valve is opened, downhole closing is carried out.
Unidirectional closing well formula circulating valve, one direction shut-off valve plate, to stratum leak stopping kill-job are opened by positive injection leak stopping slurry.
After leak stopping success, kill-job is circulated, deblocking packer acts pit shaft build-in test tubing string, obtains downhole temperature pressure money
Material data.
After downhole closing pressure buildup test terminates, the passage infusion leak stopping slurry of looking straight being connected with packer by oil pipe
Kill-job, after kill-job leak stopping success, then deblocking packer.
Using it is an advantage of the current invention that：
The present invention is the new Oil testing tubing string that can pass through the double pressure control mode of annular space+oil pipe, can realize perforation-acidifying-
Test-downhole closing pressed again-it is straight push the several functions such as well leak stopping, not only simple possible in structure, predominantly later stage kill-job
Plugging operations are provided a great convenience, safe and reliable, to meet easily leakage reservoir kill-job blocking construction operation needs, reduce because
The economic loss that the complexity that kill-job leak stopping etc. is caused is brought, ensures that construction safety is controllable.
Description of the drawings
Fig. 1 is test jobs tubular column structure schematic diagram of the present invention；
It is labeled as in figure：1st, oil pipe, 2, normally close valve, 3, unidirectional closing well formula circulating valve, 4, normally open valve, 5, manometer, 6, peace
Full joint, 7, RTTS packers, 8, oil pipe, 9, screen casing, 10, perforating gun.
Specific embodiment
Embodiment 1
It is a kind of to be capable of achieving the straight test jobs tubing string for pushing well, by the oil pipe 1, normally close valve 2 being sequentially connected from top to bottom, unidirectional pass
10 groups of well formula circulating valve 3, normally open valve 4, manometer 5, safety joint 6, RTTS packers 7, oil pipe 8, screen casing 9 and perforating gun
Into.
A kind of to be capable of achieving the straight method for testing strata for pushing well, technological process is：Tubing string down to after desired depth → set
→ replacing well head → normally open valve is closed for acid solution → pitching by normally open valve, carry out perforation, acidifying and open flow test jobs →
Applied pressure by annulus operates unidirectional closing well formula circulating valve, positive injection plugging slurry in downhole closing → tubing string, kill-job, leak stopping → circulation → solution
Envelope → pulling out of hole obtains subsurface information.
The tubing string down to after desired depth, electrical measurement school depth.
Packer setting is completed, wellhead blowout preventor device is poured out, changed the outfit gas production wellhead, connect surface testing flow, by
The each equipment of a pair of flow processs and pipeline are qualified by design requirement pressure testing.
It is described to be replaced in acid solution by normally open valve, the test fluid on its top is substituted for by acid solution by normally open valve.
Normally open valve and circulation port are closed in pitching, and packer is carried out testing envelope；Apply hydraulic pressure in oil pipe after testing sealing lattice, draw
Quick-fried perforating gun, after the completion of perforation, carries out acidizing treatment and open flow discharge opeing, and production test is carried out after stablizing, and obtains yield data.
After being completed, apply hydraulic pressure in annular space, unidirectional closing well formula circulating valve is opened, downhole closing is carried out.
Unidirectional closing well formula circulating valve, one direction shut-off valve plate, to stratum leak stopping kill-job are opened by positive injection leak stopping slurry.
After leak stopping success, kill-job is circulated, deblocking packer acts pit shaft build-in test tubing string, obtains downhole temperature pressure money
Material data.
After downhole closing pressure buildup test terminates, the passage infusion leak stopping slurry of looking straight being connected with packer by oil pipe
Kill-job, after kill-job leak stopping success, then deblocking packer.
Embodiment 2
The present embodiment combines accompanying drawing, and the present invention will be further described.
By the double pressure control mode of annular space+oil pipe, using the unidirectional closing well formula circulations of oil pipe 1+ normally close valve 2+ under upper
The tubing string of valve 3+ normally open valve 4+ manometer 5+ safety joint 6+RTTS packer 7+ oil pipe 8+ screen casing 9+ perforating guns 10, the pipe
There is post perforation, acidifying, test, downhole closing to press again, directly push well leak stopping, obtain the functions such as downhole temperature pressure data.
Technical process is as follows：
Enter down above-mentioned axle-linked cable-car, electrical measurement school depth on request.
Complete packer 7 to set, pour out wellhead blowout preventor device, changed the outfit gas production wellhead, connect surface testing flow, by
The each equipment of a pair of flow processs and pipeline are qualified by design requirement pressure testing.
By normally open valve 4 by the test fluid on its top for into acid solution.
Normally open valve 4 and circulation port are closed in pitching, and packer 7 is carried out testing envelope；Apply certain in oil pipe after testing sealing lattice
Hydraulic pressure, ignites perforating gun 10.
Acidizing treatment.
Open flow discharge opeing, carries out production test after stablizing, obtain the data such as yield.
After being completed, apply certain hydraulic pressure in annular space, unidirectional closing well formula circulating valve 3 is opened, down-hole is carried out
Closing well.
Kill-job, opens unidirectional 3 one direction shut-off valve plate of closing well formula circulating valve by positive injection leak stopping slurry, to stratum leak stopping kill-job.
After leak stopping success, kill-job is circulated, deblocking packer 7 acts pit shaft build-in test tubing string, obtains downhole temperature pressure money
Material data.
Claims (10)
- It is 1. a kind of to be capable of achieving the straight test jobs tubing string for pushing well, it is characterised in that：By the oil pipe being sequentially connected from top to bottom （1）, normally close valve（2）, unidirectional closing well formula circulating valve（3）, normally open valve（4）, manometer（5）, safety joint（6）, RTTS envelope Every device（7）, oil pipe（8）, screen casing（9）And perforating gun（10）Composition.
- 2. the method for testing strata for being capable of achieving the straight test jobs tubing string for pushing well according to claim 1, its feature exist In：Technological process is：Tubing string down to after desired depth → set → replacing well head → closed for acid solution → pitching by normally open valve Normally open valve, carries out perforation, is acidified and open flow test jobs → unidirectional closing well formula circulating valve of applied pressure by annulus operation, and downhole closing → Positive injection plugging slurry in tubing string, kill-job, leak stopping → circulation → deblocking → trip-out obtain subsurface information.
- It is 3. according to claim 2 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：The tubing string down to After desired depth, electrical measurement school depth.
- It is 4. according to claim 3 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：Complete packer seat Envelope, pours out wellhead blowout preventor device, and changed the outfit gas production wellhead, connects surface testing flow, one by one to each equipment of flow process and pipeline It is qualified by design requirement pressure testing.
- It is 5. according to claim 4 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：It is described by normally opened The test fluid on its top is substituted for acid solution by normally open valve in acid solution by valve.
- It is 6. according to claim 5 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：Pitching is closed normally opened Valve and circulation port, carry out testing envelope to packer；Apply hydraulic pressure in oil pipe after testing sealing lattice, ignite perforating gun, after the completion of perforation, Acidizing treatment and open flow discharge opeing are carried out, production test after stablizing, is carried out, yield data is obtained.
- It is 7. according to claim 6 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：After being completed, Apply hydraulic pressure in annular space, unidirectional closing well formula circulating valve is opened, downhole closing is carried out.
- It is 8. according to claim 7 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：By positive injection leak stopping Slurry opens unidirectional closing well formula circulating valve, one direction shut-off valve plate, to stratum leak stopping kill-job.
- It is 9. according to claim 8 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：After leak stopping success, Circulation kill-job, deblocking packer act pit shaft build-in test tubing string, obtain downhole temperature PRESSURE DATA data.
- It is 10. according to claim 9 to be capable of achieving the straight method for testing strata for pushing well, it is characterised in that：In downhole closing After pressure buildup test terminates, kill-job, kill-job leak stopping success are starched by the passage infusion leak stopping of looking straight that oil pipe is connected with packer Afterwards, then deblocking packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930868.0A CN106522918B (en) | 2016-10-31 | 2016-10-31 | Test operation tubular column capable of realizing direct-push kill well and stratum test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930868.0A CN106522918B (en) | 2016-10-31 | 2016-10-31 | Test operation tubular column capable of realizing direct-push kill well and stratum test method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106522918A true CN106522918A (en) | 2017-03-22 |
| CN106522918B CN106522918B (en) | 2020-04-10 |
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| CN201610930868.0A Active CN106522918B (en) | 2016-10-31 | 2016-10-31 | Test operation tubular column capable of realizing direct-push kill well and stratum test method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736789A (en) * | 2018-12-20 | 2019-05-10 | 中国石油集团川庆钻探工程有限公司 | Well killing method for whole process of formation testing |
| CN110410021A (en) * | 2018-04-27 | 2019-11-05 | 中国石油化工股份有限公司 | A kind of well completing test tubing string and method for gas well |
| CN110500084A (en) * | 2019-08-30 | 2019-11-26 | 中国石油集团川庆钻探工程有限公司 | Oil testing and well completion integrated method |
| CN110598248A (en) * | 2019-08-01 | 2019-12-20 | 西南石油大学 | Method for judging well killing stage and ending condition by direct pushing method |
| CN110617057A (en) * | 2019-09-17 | 2019-12-27 | 中海艾普油气测试（天津）有限公司 | Full-pipe type underground testing pipe column and testing method thereof |
| CN113216949A (en) * | 2021-06-10 | 2021-08-06 | 中国石油天然气股份有限公司 | Oil testing and reservoir transformation method for ultra-deep high-pressure exploration well |
| CN113311140A (en) * | 2020-02-26 | 2021-08-27 | 中国石油天然气股份有限公司 | Hydrocarbon reservoir testing system and method |
| CN113669047A (en) * | 2021-07-08 | 2021-11-19 | 中石化石油工程技术服务有限公司 | High-temperature high-pressure oil and gas well testing device and method |
| CN113669047B (en) * | 2021-07-08 | 2024-09-03 | 中石化石油工程技术服务有限公司 | High-temperature high-pressure oil-gas well testing device and method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410021A (en) * | 2018-04-27 | 2019-11-05 | 中国石油化工股份有限公司 | A kind of well completing test tubing string and method for gas well |
| CN109736789A (en) * | 2018-12-20 | 2019-05-10 | 中国石油集团川庆钻探工程有限公司 | Well killing method for whole process of formation testing |
| CN110598248A (en) * | 2019-08-01 | 2019-12-20 | 西南石油大学 | Method for judging well killing stage and ending condition by direct pushing method |
| CN110598248B (en) * | 2019-08-01 | 2022-06-17 | 西南石油大学 | Method for judging well killing stage and ending condition by direct pushing method |
| CN110500084A (en) * | 2019-08-30 | 2019-11-26 | 中国石油集团川庆钻探工程有限公司 | Oil testing and well completion integrated method |
| CN110617057A (en) * | 2019-09-17 | 2019-12-27 | 中海艾普油气测试（天津）有限公司 | Full-pipe type underground testing pipe column and testing method thereof |
| CN113311140A (en) * | 2020-02-26 | 2021-08-27 | 中国石油天然气股份有限公司 | Hydrocarbon reservoir testing system and method |
| CN113311140B (en) * | 2020-02-26 | 2024-03-01 | 中国石油天然气股份有限公司 | Hydrocarbon reservoir testing system and hydrocarbon reservoir testing method |
| CN113216949A (en) * | 2021-06-10 | 2021-08-06 | 中国石油天然气股份有限公司 | Oil testing and reservoir transformation method for ultra-deep high-pressure exploration well |
| CN113216949B (en) * | 2021-06-10 | 2023-08-15 | 中国石油天然气股份有限公司 | Oil testing and reservoir transformation method for ultra-deep high-pressure exploratory well |
| CN113669047A (en) * | 2021-07-08 | 2021-11-19 | 中石化石油工程技术服务有限公司 | High-temperature high-pressure oil and gas well testing device and method |
| CN113669047B (en) * | 2021-07-08 | 2024-09-03 | 中石化石油工程技术服务有限公司 | High-temperature high-pressure oil-gas well testing device and method |
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