CN103470208A - Recyclable run-in-hole blockage tool for oil and gas field - Google Patents
Recyclable run-in-hole blockage tool for oil and gas field Download PDFInfo
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- CN103470208A CN103470208A CN2013103660827A CN201310366082A CN103470208A CN 103470208 A CN103470208 A CN 103470208A CN 2013103660827 A CN2013103660827 A CN 2013103660827A CN 201310366082 A CN201310366082 A CN 201310366082A CN 103470208 A CN103470208 A CN 103470208A
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- tool
- tool barrel
- blanking plug
- recyclable
- gas field
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- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 21
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention relates to a run-in-hole blockage tool for an oil and gas field, in particular to a recyclable run-in-hole blockage tool for the oil and gas field. The recyclable run-in-hole blockage tool comprises an upper joint, a blanking plug, a tool barrel and a lower joint and is characterized in that the tool barrel is of a hollow cylinder structure; both upper and lower ends of the tool barrel are provided with screw threads; the middle part of the tool barrel is provided with a slotted hole; the bottom inside the tool barrel is fixedly provided with a carrying basket; the upper joint and the lower joint are respectively and fixedly connected with both the upper and lower ends of the tool barrel by the screw threads; the lower joint is fixedly connected with a blind plug; the middle part of the blanking plug is anchored to the upper end of the tool barrel by a shear pin; and both upper and lower ends of the blanking plug are provided with sealing rings. According to the invention, recovery of the blanking plug after the run-in-hole operation of the oil and gas field can be implemented; complex subsequence well repair caused by the case that the blanking plug falls into a well can be avoided; after being pulled out, the tool can be recycled by maintenance; and the recyclable run-in-hole blockage tool shows the green, environmental-friendly and high-efficiency well repair operation idea.
Description
Technical field
The present invention relates to the lower brill calker that oil gas field is used, is the recyclable lower brill calker of a kind of oil gas field.
Background technology
Operating Pressure trips out tubing string, change or check former oil pipe after need again to be lowered to.Can adopt salvagable steel wire bridging plug or electric cable bridge plug shutoff oil pipe inner chamber in trip-out operation process with pressure, prevent that the gas guest performer from guaranteeing the safety that pulls out of hole; Therefore tripping operation stops up because oil-pipe bridge plug can't be salvaged, the retrievable bridge plug well depth is thrown in after surpassing 3000m, fishing success ratio very low can not employings all, the calker adopted is at present destroyed the rear blanking plug well that falls, and causes very large difficulty to follow-up gas well workover treatment.
Summary of the invention
The purpose of this invention is to provide the recyclable lower brill calker of a kind of oil gas field, after can realizing under oil gas field boring, blanking plug is reclaimed, can avoid the blanking plug well that falls to cause follow-up well workover complexity, instrument trips out rear maintenance and can reuse, and has embodied green, environmental protection, workover treatment theory efficiently.
Technical scheme of the present invention is the recyclable lower brill calker of a kind of oil gas field, which comprises at least top connection, blanking plug, tool barrel and lower contact, it is characterized in that: tool barrel is hollow cylindrical structure, its upper/lower terminal all is provided with screw thread, the middle part of tool barrel is provided with grooved bore, and the bottom in tool barrel is fixed with accepts basket; Top connection is fixedly connected with the upper/lower terminal of tool barrel by screw thread respectively with lower contact, and lower contact is fixedly connected with blind plugging; The middle part of blanking plug is by the upper end grappling of shear pin and tool barrel, and the upper/lower terminal of blanking plug has sealing ring.
The external diameter of described tool barrel is 73mm, and the screw thread of its upper/lower terminal is that 2-7/8 external upset tubing standard screw thread is 93mm.
Described grooved bore length is 150mm to 200mm.
The unidirectional pressure-bearing of described blanking plug is 70MPa, and it is 15MPa to 21MPa that blanking plug is opened the liquid nitrogen pump pressure.
The entire length of this calker is 1050mm to 1100mm.
Characteristics of the present invention are the grooved bore by designing on tool barrel, can the ditch unsaturated zone after making blanking plug destroy and oil pipe in gas channel; Simultaneously, tool barrel below is provided with accepts basket, and connects the lower contact with blind plugging, has guaranteed to destroy rear blanking plug and has fallen into and accept basket, and the well that do not fall, reduced follow-up gas well well workover construction complicated.
The accompanying drawing explanation
Below in conjunction with specific embodiment, the present invention is further illustrated:
Fig. 1 is the structural representation of the recyclable lower brill calker of a kind of oil gas field.
In figure: 1, top connection; 2, shear pin; 3, blanking plug; 4, tool barrel; 5, grooved bore; 6, accept basket; 7, lower contact; 8, blind plugging.
The specific embodiment
The recyclable lower brill calker of a kind of oil gas field, which comprises at least top connection 1, blanking plug 3, tool barrel 4 and lower contact 7, it is characterized in that: tool barrel 4 is hollow cylindrical structures, its upper/lower terminal all is provided with screw thread, the middle part of tool barrel 4 is provided with grooved bore 5, and the bottom in tool barrel 4 is fixed with accepts basket 7; Top connection 1 is fixedly connected with the upper/lower terminal of tool barrel 4 by screw thread respectively with lower contact 7, and lower contact 7 is fixedly connected with blind plugging 8; The middle part of blanking plug 3 is the upper end grappling with tool barrel by shear pin 2, and the upper/lower terminal of blanking plug 3 has sealing ring.
Embodiment 2
As shown in Figure 1, the recyclable lower brill calker of a kind of oil gas field consists of jointly tool barrel 4, blanking plug 3 and top connection 1, lower contact 7.
The middle part of tool barrel 4 is provided with the opening slot 5 that length is 150mm to 200mm, and opening slot 5 can be linked up the gas channel of stratum and oil pipe inner chamber.
The below, inside of tool barrel 4 is provided with accepts basket 6, accepts basket 6 for catching the blanking plug 3 dropped, and prevents that blanking plug 3 from entering in well.
Blanking plug 3 adopts the blanking plug of unidirectional pressure-bearing 70MPa, and it opens the liquid nitrogen pump pressure is 15MPa to 21MPa.
The middle part of blanking plug 3 is anchored on the upper end of tool barrel 4 by shear pin 2, upper and lower two end faces of blanking plug 3 all are provided with sealing ring, can guarantee the sealing of oil pipe inner chamber.
The upper end of tool barrel 4 is fixing by screw thread and top connection 1, top connection 1 and lower brill oil pipe in succession, by oil pipe by under a whole set of calker as constructed in well.
The lower end of tool barrel 4 is fixing by screw thread and lower contact 7, and lower contact 7, with blind plugging 8, can further avoid blanking plug 3 to drop into well after completing construction.
The length of the recyclable lower brill calker of a whole set of oil gas field is between 1050mm to 1100mm, this calker after can realizing under oil gas field boring reclaims blanking plug, can avoid the blanking plug well that falls to cause follow-up well workover complexity, instrument trips out rear maintenance and can reuse, and has embodied green, environmental protection, efficient workover treatment theory.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (5)
1. the recyclable lower brill calker of oil gas field, which comprises at least top connection (1), blanking plug (3), tool barrel (4) and lower contact (7), it is characterized in that: tool barrel (4) is hollow cylindrical structure, its upper/lower terminal all is provided with screw thread, the middle part of tool barrel (4) is provided with grooved bore (5), and the bottom in tool barrel (4) is fixed with accepts basket (7); Top connection (1) is fixedly connected with the upper/lower terminal of tool barrel (4) by screw thread respectively with lower contact (7), and lower contact (7) is fixedly connected with blind plugging (8); The middle part of blanking plug (3) is the upper end grappling with tool barrel by shear pin (2), and the upper/lower terminal of blanking plug (3) has sealing ring.
2. according to the recyclable lower brill calker of a kind of oil gas field described in claim 1, it is characterized in that: the external diameter of described tool barrel (4) is 73mm, and the screw thread of its upper/lower terminal is that 2-7/8 external upset tubing standard screw thread is 93mm.
3. according to the recyclable lower brill calker of a kind of oil gas field described in claim 1, it is characterized in that: described grooved bore (5) length is 150mm to 200mm.
4. according to the recyclable lower brill calker of a kind of oil gas field described in claim 1, it is characterized in that: the unidirectional pressure-bearing of described blanking plug (3) is 70MPa, and it is 15MPa to 21MPa that blanking plug (3) is opened the liquid nitrogen pump pressure.
5. according to the recyclable lower brill calker of a kind of oil gas field described in claim 1, it is characterized in that: the entire length of this calker is 1050mm to 1100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366082.7A CN103470208B (en) | 2013-08-21 | 2013-08-21 | A kind of recyclable lower brill calker of oil gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366082.7A CN103470208B (en) | 2013-08-21 | 2013-08-21 | A kind of recyclable lower brill calker of oil gas field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103470208A true CN103470208A (en) | 2013-12-25 |
| CN103470208B CN103470208B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310366082.7A Active CN103470208B (en) | 2013-08-21 | 2013-08-21 | A kind of recyclable lower brill calker of oil gas field |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912236A (en) * | 2014-04-04 | 2014-07-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing tail pipe blockage device |
| CN105298429A (en) * | 2015-11-18 | 2016-02-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Drilling packer |
| CN106481301A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of limit-type Underwell anti-injection sand washing blanking plug of monomer |
| CN109296333A (en) * | 2018-10-17 | 2019-02-01 | 中国石油天然气股份有限公司 | Buffer type speed tubular column blanking plug and using method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2568944A (en) * | 1949-04-25 | 1951-09-25 | Western Gulf Oil Company | Retrievable bridge plug |
| US3812911A (en) * | 1973-06-11 | 1974-05-28 | R Vann | Retrievable blanking plug |
| CA2553113A1 (en) * | 2006-07-25 | 2008-01-25 | Mjb Slickline Services Inc. | Dual latching landing nipple for downhole assemblies |
| CN201318149Y (en) * | 2008-12-17 | 2009-09-30 | 新疆华油油气工程有限公司 | Unidirectional inner blowout control pump-out type blanking plug |
| CN201439700U (en) * | 2009-06-27 | 2010-04-21 | 大庆油田有限责任公司 | Blowout-prevention working valve barrel |
| CN201574720U (en) * | 2009-12-29 | 2010-09-08 | 中国石油天然气集团公司 | Stopper supporting barrel |
| CN202338261U (en) * | 2011-10-17 | 2012-07-18 | 中国石油天然气股份有限公司 | Repeated oil pipe plug |
| CN202914018U (en) * | 2012-11-08 | 2013-05-01 | 中国石油化工股份有限公司 | Pressure test anti-spraying multifunctional plug |
| CN203476264U (en) * | 2013-08-21 | 2014-03-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Recoverable drill-down blocking device in oil and gas field |
-
2013
- 2013-08-21 CN CN201310366082.7A patent/CN103470208B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2568944A (en) * | 1949-04-25 | 1951-09-25 | Western Gulf Oil Company | Retrievable bridge plug |
| US3812911A (en) * | 1973-06-11 | 1974-05-28 | R Vann | Retrievable blanking plug |
| CA2553113A1 (en) * | 2006-07-25 | 2008-01-25 | Mjb Slickline Services Inc. | Dual latching landing nipple for downhole assemblies |
| CN201318149Y (en) * | 2008-12-17 | 2009-09-30 | 新疆华油油气工程有限公司 | Unidirectional inner blowout control pump-out type blanking plug |
| CN201439700U (en) * | 2009-06-27 | 2010-04-21 | 大庆油田有限责任公司 | Blowout-prevention working valve barrel |
| CN201574720U (en) * | 2009-12-29 | 2010-09-08 | 中国石油天然气集团公司 | Stopper supporting barrel |
| CN202338261U (en) * | 2011-10-17 | 2012-07-18 | 中国石油天然气股份有限公司 | Repeated oil pipe plug |
| CN202914018U (en) * | 2012-11-08 | 2013-05-01 | 中国石油化工股份有限公司 | Pressure test anti-spraying multifunctional plug |
| CN203476264U (en) * | 2013-08-21 | 2014-03-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Recoverable drill-down blocking device in oil and gas field |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912236A (en) * | 2014-04-04 | 2014-07-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing tail pipe blockage device |
| CN106481301A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of limit-type Underwell anti-injection sand washing blanking plug of monomer |
| CN105298429A (en) * | 2015-11-18 | 2016-02-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Drilling packer |
| CN105298429B (en) * | 2015-11-18 | 2018-09-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of lower brill blanking plug |
| CN109296333A (en) * | 2018-10-17 | 2019-02-01 | 中国石油天然气股份有限公司 | Buffer type speed tubular column blanking plug and using method |
| CN109296333B (en) * | 2018-10-17 | 2023-09-26 | 中国石油天然气股份有限公司 | Buffer type speed pipe column plug and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470208B (en) | 2017-03-01 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20211013 Address after: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: 710018 room 1207, Changqing building, Changqing Xing Long Yuan District, Xi'an, Shaanxi Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. |
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| TR01 | Transfer of patent right |