CN102213083B - Negative pressure perforation and ultra-negative pressure pump suction integrated production process - Google Patents
Negative pressure perforation and ultra-negative pressure pump suction integrated production process Download PDFInfo
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- CN102213083B CN102213083B CN 201110098345 CN201110098345A CN102213083B CN 102213083 B CN102213083 B CN 102213083B CN 201110098345 CN201110098345 CN 201110098345 CN 201110098345 A CN201110098345 A CN 201110098345A CN 102213083 B CN102213083 B CN 102213083B
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- perforation
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- suction pump
- oil pipe
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Abstract
The invention provides a negative pressure perforation and ultra-negative pressure pump suction integrated production process. The production process is characterized in that firstly a time delay device, an initiation device, a shock absorption system, a negative pressure punching device, an automatic flow control device, a packer, a depth correction pup joint, a suction pump shell and a deliverypipe column are sequentially connected, and the automatic flow control device is used for controlling the negative pressure in an oil pipe; secondly a perforator is aligned with the predetermined ground, the packer is used for setting to isolate annulus, the annulus pressure is applied after a suction pump is sunk into the oil pipe, the negative pressure punching device is firstly opened to realize communication between the perforated ground and the oil pipe to form a ground negative pressure environment, pressure is continuously applied to detonate the initiation device, the time delay device begins carrying out time delaying, and the annulus pressure is released; and finally while the perforator detonates perforation and a pressure release device is started, the suction pump is started,the pressure release device is used for absorbing the high pressure fluid generated during perforation, the suction pump is used for pumping out to form ultra-negative pressure production, and a perforation tunnel is flushed.
Description
Technical field;
The invention belongs to Oil/gas Well underbalance perforating technology field, specifically be that a kind of underbalance perforating and pump are taken out super negative pressure production integration production technology.
Background technology;
Underbalance perforating is method commonly used in petroleum oil well completion, and the underbalance perforating technology can make the back flushing of perforation pollutant to pit shaft, reduces the perforation compaction band, improves Oil ﹠ Gas Productivity, therefore is a kind of technology that people often adopt.At home in the petroleum oil well completion process, low-permeability reservoir conventional underbalance perforatings or the perforating tests connection of adopting are done, but this technique relies on reservoir self pressure to return row morely at present, be difficult to get a desired effect for the clean-up performance of perforation tunnel; Some high pressure low permeability reservoirs can't induced flow, and the reservoir fracturing transformation must be carried out behind the perforation and just extraction value can be reached, long construction period, cost of production is high.
Summary of the invention:
The objective of the invention is, high pressure low permeability reservoir poor for the perforation tunnel clean-up performance and be difficult to the induced flow engineering problem, provide a kind of underbalance perforating and pump to take out super negative pressure production integration production technology, do on the negative-pressure foundation at the perforating test connection, cooperate super negative pressure suction, improve the perforation completion effect of high pressure low permeability reservoir, reach the purpose of cleaning perforation tunnel and induced flow reservoir.
Purpose of the present invention can be achieved by the following technical measures:
At first form negative pressure, ignite priming device, then perforation and pump are taken out synchronously and are carried out.
Purpose of the present invention also can be achieved by the following technical measures:
Be linked in sequence first time-delay mechanism, priming device, shock mitigation system, negative pressure boring device, automatic flow control apparatus, packer, the dark pipe nipple in school, suction pump case and carry tubing string are by negative pressure value in the automatic flow control apparatus control oil pipe; Then
By negative pressure value in the accurate control oil pipe of automatic flow control apparatus, aim at predetermined stratum by perforator, packer setting, the isolation annular space, in oil pipe, be lowered to suction pump after, carry out applied pressure by annulus, open first the negative pressure boring device and realize that perforating stratum is communicated with oil pipe, form the stratum subnormal ambient, continue pressurization and ignite priming device, time-delay mechanism enters time-delay, discharges annular pressure; At last
When perforator is ignited perforation and pressure relief device startup, start suction pump, the high-pressure fluid that pressure relief device produces when being used for absorbing perforation, suction pump is used for finding time, form super negative pressure production environment, the flushing perforation tunnel reaches the purpose that cleans perforation tunnel and induced flow reservoir, improves the perforation completion effect of high pressure low permeability reservoir.
According to operating procedure cooperating operation of the present invention, the formation of realization negative pressure, perforation and pump are taken out super negative pressure production integration.
The present invention uses at the high pressure low permeability reservoir, reaches cleaning perforation tunnel and induced flow reservoir by Perforating Techniques, and can directly put into production behind the perforation.Its know-why is reasonable, is easy to realize.
The specific embodiment:
Embodiment 1:
After at first perforating gun is transferred in assembling, the time-delay mechanism that is linked in sequence, priming device, shock mitigation system, negative pressure boring device, automatic flow control apparatus, packer, the dark pipe nipple in school, suction pump case and conveying tubing string.
In the process of transferring perforation conveying tubing string, perforating fluid enters in the oil pipe by automatic flow control apparatus, when head of liquid in the oil pipe reaches the negative pressure value of in advance design, in oil pipe under the fluid pressure effect, the promotion sealing shroud moves up and cuts off shear pin, automatic flow control apparatus is closed, and the isolation oil jacket forms constant liquid-column height in the oil pipe.Then
Deeply make perforator aim at predetermined stratum by the school, packer setting, the isolation annular space is transferred suction pump, and the well head production tree is installed, carry out applied pressure by annulus, open first the negative pressure boring device and realize that perforating stratum is communicated with oil pipe, form the stratum subnormal ambient, continue pressurization and ignite priming device, time-delay mechanism enters time-delay, discharges annular pressure.At last
When perforator is ignited perforation and pressure relief device startup, start suction pump, the high-pressure fluid that pressure relief device produces when being used for absorbing perforation, suction pump is used for finding time, form super negative pressure production, the flushing perforation tunnel reaches the purpose that cleans perforation tunnel and induced flow reservoir, improves the perforation completion effect of high pressure low permeability reservoir.
Claims (1)
1. underbalance perforating and pump are taken out super negative pressure production integration production technology, it is characterized in that: at first form negative pressure, ignite priming device, then perforation and pump are taken out synchronously and are carried out, and processing step is:
Be linked in sequence first perforating gun, time-delay mechanism, priming device, shock mitigation system, negative pressure boring device, automatic flow control apparatus, packer, the dark pipe nipple in school, suction pump case and carry tubing string are by negative pressure value in the automatic flow control apparatus control oil pipe; Then
Aim at predetermined stratum by perforator, packer setting, the isolation annular space, after in oil pipe, being lowered to suction pump, carry out applied pressure by annulus, open first the negative pressure boring device and realize that perforating stratum is communicated with oil pipe, form the stratum subnormal ambient, continue pressurization and ignite priming device, time-delay mechanism enters time-delay, discharges annular pressure; At last
When perforator is ignited perforation and pressure relief device startup, start suction pump, the high-pressure fluid that pressure relief device produces when being used for absorbing perforation, suction pump is used for finding time, and forms super negative pressure production, washes the perforation tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098345 CN102213083B (en) | 2011-04-19 | 2011-04-19 | Negative pressure perforation and ultra-negative pressure pump suction integrated production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098345 CN102213083B (en) | 2011-04-19 | 2011-04-19 | Negative pressure perforation and ultra-negative pressure pump suction integrated production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102213083A CN102213083A (en) | 2011-10-12 |
| CN102213083B true CN102213083B (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110098345 Active CN102213083B (en) | 2011-04-19 | 2011-04-19 | Negative pressure perforation and ultra-negative pressure pump suction integrated production process |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481322B (en) * | 2015-08-27 | 2018-08-24 | 中国石油大学(北京) | A kind of method that interior expansion of included gas expands borehole aperture |
| CN106050193B (en) * | 2016-08-02 | 2018-08-21 | 中国科学技术大学 | A kind of secondary dynamic negative-pressure perforating methods of fluid injection pressurization |
| CN109025959B (en) * | 2018-07-04 | 2022-03-29 | 中国石油天然气股份有限公司 | Method and device for determining height of perforation test combined liquid pad |
| CN113027407B (en) * | 2021-04-21 | 2022-04-05 | 太原理工大学 | Foam-gas composite staged fracturing method for stratum |
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| CN1283736A (en) * | 2000-09-05 | 2001-02-14 | 大港油田集团测井公司 | Negative-pressure equipment of multi-stage perforator for oil tube delivery |
| CN1458388A (en) * | 2003-04-27 | 2003-11-26 | 邵志山 | Triple liquid draining system for perforation, formation testing and jet flow pump |
| EP1375817A1 (en) * | 2002-06-24 | 2004-01-02 | Services Petroliers Schlumberger | Underbalance drilling downhole choke |
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| US20100133005A1 (en) * | 2008-12-01 | 2010-06-03 | Matthew Robert George Bell | Method for the Enhancement of Dynamic Underbalanced Systems and Optimization of Gun Weight |
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2011
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283736A (en) * | 2000-09-05 | 2001-02-14 | 大港油田集团测井公司 | Negative-pressure equipment of multi-stage perforator for oil tube delivery |
| EP1375817A1 (en) * | 2002-06-24 | 2004-01-02 | Services Petroliers Schlumberger | Underbalance drilling downhole choke |
| CN1458388A (en) * | 2003-04-27 | 2003-11-26 | 邵志山 | Triple liquid draining system for perforation, formation testing and jet flow pump |
| CN2924005Y (en) * | 2005-08-25 | 2007-07-18 | 中国石油天然气集团公司 | Perforating, detecting, acidating and liquid-discharging integrated testing pipe string |
| US20100133005A1 (en) * | 2008-12-01 | 2010-06-03 | Matthew Robert George Bell | Method for the Enhancement of Dynamic Underbalanced Systems and Optimization of Gun Weight |
Non-Patent Citations (6)
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| 吕春霖 等.新工艺射孔技术在青海油田的应用与发展.《青海石油》.2010,第28卷(第1期),28-32. |
| 新型测试射孔联作技术及应用;许亚东 等;《油气井测试》;20100630;第19卷(第3期);第43页"负压开孔射孔联作工艺"部分 * |
| 新工艺射孔技术在青海油田的应用与发展;吕春霖 等;《青海石油》;20100331;第28卷(第1期);28-32 * |
| 王建国 等.超正压射孔测试联作工艺在岔25-44X井的应用.《油气井测试》.2011,第20卷(第1期),48-49. |
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| CN102213083A (en) | 2011-10-12 |
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Effective date of registration: 20150910 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Logging Company of triumph petroleum engineering company limited of China Petrochemical Industry Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: SINOPEC Shengli Petroleum Administration Well Logging Company |
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Effective date of registration: 20220223 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 12 / F, No. 6, Huixin a, Chaoyang District, Beijing 100029 Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: Logging company of Sinopec Shengli Petroleum Engineering Co., Ltd |