CN106522918B - 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
- CN106522918B CN106522918B CN201610930868.0A CN201610930868A CN106522918B CN 106522918 B CN106522918 B CN 106522918B CN 201610930868 A CN201610930868 A CN 201610930868A CN 106522918 B CN106522918 B CN 106522918B
- Authority
- CN
- China
- Prior art keywords
- well
- plugging
- pipe column
- push
- test
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 238000010998 test method Methods 0.000 title abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 239000002253 acid Substances 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 10
- 230000020477 pH reduction Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000754 repressing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
Images
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 invention relates to a formation testing method, in particular to a testing operation tubular column capable of realizing direct-push kill and a formation testing method thereof.
Background
At present, an APR testing tool is usually adopted for carrying out operation in high-temperature and high-pressure deep well testing, and a whole set of relatively fixed process and tubular column structure is formed for years, namely an OMNI valve, an RDS valve, an LPR-N valve, a pressure gauge supporting cylinder, a hydraulic bypass, a safety joint and an RTTS packer. After the well opening test operation is finished, the annulus is pressed, a one-time well closing valve (RDS valve) in the underground pipe column is operated, the ball valve is closed, a channel in an oil pipe is cut off, after the well is closed, the ball valve of the underground well closing valve cannot be opened again, the channel in the pipe column is closed, and the upper direction and the lower direction are not communicated. The pipe column structure and the matched tool can not meet the requirement of subsequent well killing and plugging work. Because the plugging and well killing slurry can not be pumped in the oil pipe, the packer can only be unsealed in advance, and the plugging slurry is beaten through the annular space between the packer rubber sleeve and the sleeve pipe to perform plugging after the unsealing. However, the clearance is very small, the mud permeability is poor, the leakage stopping operation time is long, the efficiency is low, and the leakage stopping material is easy to bridge and precipitate, so that the underground complexity of pipe column clamping and burying and the like is caused.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a test operation tubular column capable of realizing a direct-push kill well and a stratum test method thereof. 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.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a can realize test operation tubular column of straight push kill well which characterized in that: the system consists of an oil pipe, a normally closed valve, a one-way well closing type circulating valve, a normally opened valve, a pressure gauge supporting cylinder, a safety joint, an RTTS packer, an oil pipe, a sieve pipe and a perforating gun which are sequentially connected from top to bottom.
A formation testing method capable of realizing direct-push kill well is characterized in that: 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.
And electrically measuring and correcting the depth after the pipe column is lowered to a preset depth.
And (3) completing packer setting, pouring out the wellhead blowout preventer device, replacing the gas production wellhead, connecting a ground test flow, and testing each device and pipeline of the flow one by one according to the design requirements to be qualified.
And replacing the test liquid on the upper part of the acid liquid into the acid liquid through a normally open valve.
The ball is thrown to close the normally open valve and the circulating hole, and the packer is tested; and applying hydraulic pressure in the oil pipe after the seal is tested to be qualified, detonating a perforating gun, carrying out acidification construction and open flow liquid drainage after perforation is finished, testing and seeking yield after stabilization, and acquiring yield data.
And after the test is finished, hydraulic pressure is applied to the annular space, the unidirectional well closing type circulating valve is opened, and the well is closed underground.
And opening the one-way shut-in type circulating valve through the positive injection plugging slurry, closing the valve plate in one way, and plugging and killing the stratum.
And after plugging is successful, circularly killing the well, unsealing the packer, taking out the test pipe column in the shaft, and acquiring underground temperature and pressure data.
And after the pressure recovery test of the underground shut-in well is finished, injecting plugging slurry into the well through a pilot hole channel pump connected with the packer, and deblocking the packer after the well killing and plugging are successful.
The invention has the advantages that:
the invention is a novel oil testing test pipe column which can realize multiple functions of perforation, acidification, test, underground well closing and re-pressing, direct pushing well killing and leaking stoppage and the like through an annulus and oil pipe double pressure control mode, has simple and feasible structure, mainly provides great convenience, safety and reliability for later well killing and leaking stoppage operation, meets the requirement of well killing and leaking stoppage construction operation of a reservoir stratum which is easy to leak, reduces economic loss caused by complexity of well killing and leaking stoppage and the like, and ensures that the construction is safe and controllable.
Drawings
FIG. 1 is a schematic view of a test work string according to the present invention;
labeled as: 1. the device comprises an oil pipe, 2, a normally closed valve, 3, a one-way shut-in circulating valve, 4, a normally open valve, 5, a pressure gauge support cylinder, 6, a safety joint, 7, an RTTS packer, 8, an oil pipe, 9, a sieve pipe, 10 and a perforating gun.
Detailed Description
Example 1
A test operation tubular column capable of realizing a direct push kill well comprises an oil pipe 1, a normally closed valve 2, a one-way shut-in well type circulating valve 3, a normally opened valve 4, a pressure gauge support cylinder 5, a safety joint 6, an RTTS packer 7, an oil pipe 8, a sieve pipe 9 and a perforating gun 10 which are sequentially connected from top to bottom.
A formation testing method capable of realizing direct push kill well comprises the following process flows: 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.
And electrically measuring and correcting the depth after the pipe column is lowered to a preset depth.
And (3) completing packer setting, pouring out the wellhead blowout preventer device, replacing the gas production wellhead, connecting a ground test flow, and testing each device and pipeline of the flow one by one according to the design requirements to be qualified.
And replacing the test liquid on the upper part of the acid liquid into the acid liquid through a normally open valve.
The ball is thrown to close the normally open valve and the circulating hole, and the packer is tested; and applying hydraulic pressure in the oil pipe after the seal is tested to be qualified, detonating a perforating gun, carrying out acidification construction and open flow liquid drainage after perforation is finished, testing and seeking yield after stabilization, and acquiring yield data.
And after the test is finished, hydraulic pressure is applied to the annular space, the unidirectional well closing type circulating valve is opened, and the well is closed underground.
And opening the one-way shut-in type circulating valve through the positive injection plugging slurry, closing the valve plate in one way, and plugging and killing the stratum.
And after plugging is successful, circularly killing the well, unsealing the packer, taking out the test pipe column in the shaft, and acquiring underground temperature and pressure data.
And after the pressure recovery test of the underground shut-in well is finished, injecting plugging slurry into the well through a pilot hole channel pump connected with the packer, and deblocking the packer after the well killing and plugging are successful.
Example 2
The present embodiment further describes the present invention with reference to the accompanying drawings.
Through an annular space and oil pipe double-pressure control mode, a pipe column comprising an oil pipe 1, a normally closed valve 2, a one-way well closing type circulating valve 3, a normally open valve 4, a pressure gauge support barrel 5, a safety joint 6, an RTTS packer 7, an oil pipe 8, a sieve pipe 9 and a perforating gun 10 is adopted from top to bottom, and the pipe column has the functions of perforating, acidizing, testing, underground well closing and repressing, direct push well plugging, underground temperature and pressure data obtaining and the like.
The main process flow is as follows:
and (5) putting the combined pipe column as required, and electrically measuring and correcting depth.
And (3) completing setting of the packer 7, pouring out the wellhead blowout preventer device, replacing the gas production wellhead, connecting a ground test flow, and testing each device and pipeline of the flow one by one according to the design requirements to be qualified.
The upper part of the test solution was replaced with acid solution through a normally open valve 4.
The normally open valve 4 and the circulation hole are closed by ball throwing, and the packer 7 is tested; and applying certain hydraulic pressure in the oil pipe after the seal is qualified, and detonating the perforating gun 10.
And (5) acidizing construction.
And (4) discharging liquid, testing after stabilization, and obtaining data such as yield.
And after the test is finished, applying certain hydraulic pressure to the annular space, and opening the unidirectional well closing type circulating valve 3 to close the well underground.
And (4) killing the well, namely opening the one-way closing type circulating valve 3 to close the valve plate in one way through positive injection plugging slurry to kill the well for stratum plugging.
And (4) after plugging is successful, circularly killing the well, unsealing the packer 7, pulling out the test pipe column in the shaft, and acquiring underground temperature and pressure data.
Claims (9)
1. A stratum testing method of a testing operation pipe column capable of realizing direct-push kill-well is characterized by comprising the following steps: 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 space pressurization operation on a one-way well closing type circulating valve, carrying out well closing → injecting plugging slurry in the pipe column, killing the well, plugging → circulating → deblocking → pulling to obtain downhole data;
the test operation tubular column consists of an oil pipe (1), a normally closed valve (2), a one-way well closing type circulating valve (3), a normally open valve (4), a pressure gauge support cylinder (5), a safety joint (6), an RTTS packer (7), an oil pipe (8), a sieve pipe (9) and a perforating gun (10) which are sequentially connected from top to bottom.
2. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to the claim 1, characterized in that: and electrically measuring and correcting the depth after the pipe column is lowered to a preset depth.
3. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to claim 2, characterized in that: and (3) completing packer setting, pouring out the wellhead blowout preventer device, replacing the gas production wellhead, connecting a ground test flow, and testing each device and pipeline of the flow one by one according to the design requirements to be qualified.
4. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to the claim 3, characterized in that: and replacing the test liquid on the upper part of the acid liquid into the acid liquid through a normally open valve.
5. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to the claim 4, characterized in that: the ball is thrown to close the normally open valve and the circulating hole, and the packer is tested; and applying hydraulic pressure in the oil pipe after the seal is tested to be qualified, detonating a perforating gun, carrying out acidification construction and open flow liquid drainage after perforation is finished, testing and seeking yield after stabilization, and acquiring yield data.
6. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to claim 5, characterized in that: and after the test is finished, hydraulic pressure is applied to the annular space, the unidirectional well closing type circulating valve is opened, and the well is closed underground.
7. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to the claim 6, characterized in that: and opening the one-way shut-in type circulating valve through the positive injection plugging slurry, closing the valve plate in one way, and plugging and killing the stratum.
8. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to claim 7, characterized in that: and after plugging is successful, circularly killing the well, unsealing the packer, taking out the test pipe column in the shaft, and acquiring underground temperature and pressure data.
9. The formation testing method of the test operation pipe column capable of realizing the push-pull well according to claim 8, characterized in that: and after the pressure recovery test of the underground shut-in well is finished, injecting plugging slurry into the well through a pilot hole channel pump connected with the packer, and deblocking the packer after the well killing and plugging are successful.
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 CN106522918A (en) | 2017-03-22 |
| CN106522918B true CN106522918B (en) | 2020-04-10 |
Family
ID=58292962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522918B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410021B (en) * | 2018-04-27 | 2020-11-20 | 中国石油化工股份有限公司 | Well completion testing 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 | A kind of formation testing overall process well killing 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 | A kind of formation testing completion integral method |
| CN110617057B (en) * | 2019-09-17 | 2023-05-02 | 中海艾普油气测试（天津）有限公司 | Full-pipe type underground test pipe column and test method thereof |
| 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 |
| 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 |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662825A (en) * | 1970-06-01 | 1972-05-16 | Schlumberger Technology Corp | Well tester apparatus |
| US4529038A (en) * | 1982-08-19 | 1985-07-16 | Geo Vann, Inc. | Differential vent and bar actuated circulating valve and method |
| US4951752A (en) * | 1989-04-20 | 1990-08-28 | Exxon Production Research Company | Standing valve |
| CN201507279U (en) * | 2009-08-28 | 2010-06-16 | 中国石油化工股份有限公司 | Separate-acidification hydraulic switch as well as upper valve and lower valve thereof |
| CN103104214A (en) * | 2012-12-14 | 2013-05-15 | 中国石油集团川庆钻探工程有限公司 | Double-pressurizing-channel packer applied to oil tube sealing and detection |
| CN103104213A (en) * | 2012-12-14 | 2013-05-15 | 中国石油集团川庆钻探工程有限公司 | High temperature and high pressure test packer |
| CN203022725U (en) * | 2012-12-27 | 2013-06-26 | 中国石油集团川庆钻探工程有限公司 | Tester for testing stress of pipe pile |
| CN203603844U (en) * | 2013-12-09 | 2014-05-21 | 中国石油集团川庆钻探工程有限公司 | Press-opening circulation valve |
| CN203685127U (en) * | 2013-12-09 | 2014-07-02 | 中国石油集团川庆钻探工程有限公司 | Press-open type circulation shut-off valve |
| CN204225848U (en) * | 2014-11-04 | 2015-03-25 | 中国石油集团川庆钻探工程有限公司 | Disconnecting type down-hole plugging valve |
| CN204827397U (en) * | 2015-05-29 | 2015-12-02 | 张路铭 | Balanced perforation - negative pressure open flow device |
| CN105239960A (en) * | 2015-11-09 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司 | One-way downhole circulating shut-in valve and working method thereof |
| CN105545282A (en) * | 2015-12-10 | 2016-05-04 | 中国石油天然气股份有限公司 | Layering continuous well testing system and use method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6186227B1 (en) * | 1999-04-21 | 2001-02-13 | Schlumberger Technology Corporation | Packer |
-
2016
- 2016-10-31 CN CN201610930868.0A patent/CN106522918B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662825A (en) * | 1970-06-01 | 1972-05-16 | Schlumberger Technology Corp | Well tester apparatus |
| US4529038A (en) * | 1982-08-19 | 1985-07-16 | Geo Vann, Inc. | Differential vent and bar actuated circulating valve and method |
| US4951752A (en) * | 1989-04-20 | 1990-08-28 | Exxon Production Research Company | Standing valve |
| CN201507279U (en) * | 2009-08-28 | 2010-06-16 | 中国石油化工股份有限公司 | Separate-acidification hydraulic switch as well as upper valve and lower valve thereof |
| CN103104214A (en) * | 2012-12-14 | 2013-05-15 | 中国石油集团川庆钻探工程有限公司 | Double-pressurizing-channel packer applied to oil tube sealing and detection |
| CN103104213A (en) * | 2012-12-14 | 2013-05-15 | 中国石油集团川庆钻探工程有限公司 | High temperature and high pressure test packer |
| CN203022725U (en) * | 2012-12-27 | 2013-06-26 | 中国石油集团川庆钻探工程有限公司 | Tester for testing stress of pipe pile |
| CN203603844U (en) * | 2013-12-09 | 2014-05-21 | 中国石油集团川庆钻探工程有限公司 | Press-opening circulation valve |
| CN203685127U (en) * | 2013-12-09 | 2014-07-02 | 中国石油集团川庆钻探工程有限公司 | Press-open type circulation shut-off valve |
| CN204225848U (en) * | 2014-11-04 | 2015-03-25 | 中国石油集团川庆钻探工程有限公司 | Disconnecting type down-hole plugging valve |
| CN204827397U (en) * | 2015-05-29 | 2015-12-02 | 张路铭 | Balanced perforation - negative pressure open flow device |
| CN105239960A (en) * | 2015-11-09 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司 | One-way downhole circulating shut-in valve and working method thereof |
| CN105545282A (en) * | 2015-12-10 | 2016-05-04 | 中国石油天然气股份有限公司 | Layering continuous well testing system and use method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 使用OMNI阀的几种特殊的APR测试工艺;潘登等;《钻采工艺》;20080131;第31卷(第1期);第33-35页 * |
| 射孔－ 酸化－ 测试－ 封堵及完井一体化工艺技术;潘登等;《钻采工艺》;20140131;第37卷(第1期);第8-10页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106522918A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106522918B (en) | Test operation tubular column capable of realizing direct-push kill well and stratum test method thereof | |
| WO2016033983A1 (en) | Coiled tubing fracturing multistage tool string and utilization method | |
| CA2757950C (en) | Ported packer | |
| CN105971537B (en) | A kind of deblocking Refloatation method of retrievable bridge plug solution sealing mechanism | |
| CN103470242B (en) | A kind of oilfield horizontal well volume fracturing method | |
| CN206693997U (en) | A kind of oil field is every excavating technology tubing string | |
| CN108386157A (en) | A kind of piston pressure open-type sliding sleeve switch and hydraulic fracturing construction method | |
| CN109296348B (en) | Toe end sliding sleeve capable of being opened in time delay mode | |
| US9689230B2 (en) | Cementing plug apparatus and method | |
| CN103775025B (en) | Sizing collar | |
| CN102691492B (en) | System and process of screen pipe completion and cross oil layer cementing for steam injection heavy oil well | |
| CN106761577A (en) | A kind of oil field is every excavating technology tubing string | |
| CN110617057B (en) | Full-pipe type underground test pipe column and test method thereof | |
| RU2598256C1 (en) | Method for hydrodynamic tests of exploitation well formation (versions) | |
| CN204457614U (en) | A kind of two disc type circulating valve that breaks | |
| CN210134883U (en) | Injection-production integrated pipe column in same well | |
| CN109736789A (en) | A kind of formation testing overall process well killing method | |
| CN101839117B (en) | Annulus safety valve | |
| RU128896U1 (en) | DEVICE FOR TRANSFER OF WELLS, INCLUDING WATERFILLED, TO OPERATION ON TWO LIFT COLUMNS | |
| RU2533470C2 (en) | Procedure for recovery of tightness in flow strings | |
| GB2588029A (en) | Annular controlled safety valve system and method | |
| CN209724295U (en) | A kind of one-way fashion underground shut-off valve | |
| CN205297515U (en) | Coiled tubing drags hydraulic jet fracturing device | |
| CN212958583U (en) | Layered gas injection and layered fracturing pipe column | |
| CN103696749A (en) | Closable fracture sliding sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210720 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 610051 Sichuan science and Technology Department, 3 Chuan Qing Road, 1 section, Fu Qing Road, Chenghua District, Chengdu, China Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |