CN103470208B - A kind of recyclable lower brill calker of oil gas field - Google Patents
A kind of recyclable lower brill calker of oil gas field Download PDFInfo
- Publication number
- CN103470208B CN103470208B CN201310366082.7A CN201310366082A CN103470208B CN 103470208 B CN103470208 B CN 103470208B CN 201310366082 A CN201310366082 A CN 201310366082A CN 103470208 B CN103470208 B CN 103470208B
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- CN
- China
- Prior art keywords
- tool barrel
- blanking plug
- calker
- screw thread
- gas field
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Links
- 241001074085 Scophthalmus aquosus Species 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 17
- 230000000903 blocking effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The present invention relates to the lower brill calker of oil gas field, it is a kind of recyclable lower brill calker of oil gas field.It at least includes top connection, blanking plug, tool barrel and lower contact, it is characterized in that：Tool barrel is hollow cylindrical structure, and its upper/lower terminal is both provided with screw thread, and the middle part of tool barrel is provided with grooved bore, and the bottom in tool barrel is fixed with undertaking 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 upper end grappling of shear pin and tool barrel is passed through at the middle part of blanking plug, and the upper/lower terminal of blanking plug has sealing ring.Blanking plug is reclaimed after being capable of boring under oil gas field by the present invention, and the blanking plug well that falls can be avoided to cause follow-up well workover complicated, instrument rise out after maintenance is repeatable utilizes, embody green, environmental protection, efficient workover treatment theory.
Description
Technical field
The present invention relates to the lower brill calker of oil gas field, it is a kind of recyclable lower brill calker of oil gas field.
Background technology
Operating Pressure plays out tubing string, changes or inspection crude oil Guan Houxu enters down again.Can in trip-out operation process with pressure
To block oil pipe inner chamber using salvagable steel wire bridging plug or electric cable bridge plug, prevent string outside gas from ensureing trip-out safety；Lower boring is made
Industry blocking cannot be salvaged due to oil-pipe bridge plug, retrievable bridge plug well depth more than throwing in after 3000m, fishing success ratio all very low thus not
Can adopt, the calker adopting at present is destroyed rear blanking plug and fallen well, causes very big difficulty to follow-up gas well workover treatment.
Content of the invention
It is an object of the invention to provide a kind of recyclable lower brill calker of oil gas field, will after being capable of boring under oil gas field
Blanking plug reclaims, and the blanking plug well that falls can be avoided to cause follow-up well workover complicated, instrument rise out after maintenance is repeatable utilizes, embody
Green, environmental protection, efficient workover treatment theory.
The technical scheme is that a kind of recyclable lower brill calker of oil gas field, it at least includes top connection, blocking
Device, tool barrel and lower contact, is characterized in that：Tool barrel is hollow cylindrical structure, and its upper/lower terminal is both provided with screw thread, instrument
The middle part of cylinder is provided with grooved bore, and the bottom in tool barrel is fixed with undertaking basket；Top connection and lower contact pass through respectively screw thread with
The upper/lower terminal of tool barrel is fixedly connected, and lower contact is fixedly connected with blind plugging；Shear pin and instrument are passed through in the middle part of blanking plug
The upper end grappling of cylinder, 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 fluting hole length is 150mm to 200mm.
The one-way bearing pressure of described blanking plug is 70MPa, and blanking plug is opened liquid nitrogen and is pumped as 15MPa to 21MPa.
The entire length of this calker is 1050mm to 1100mm.
It is characteristic of the invention that by tool barrel design grooved bore so that blanking plug destroy after can ditch unsaturated zone with
Oil pipe interior air-flow passage；Meanwhile, it is provided with undertaking basket below tool barrel, and connect the lower contact with blind plugging it is ensured that destroying
Blanking plug falls into undertaking basket afterwards, and do not fall well, decreases follow-up gas well well workover construction complicated.
Brief description
Below in conjunction with specific embodiment, the present invention is further illustrated：
Fig. 1 is a kind of recyclable lower structural representation boring calker of oil gas field.
In figure：1st, top connection；2nd, shear pin；3rd, blanking plug；4th, tool barrel；5th, grooved bore；6th, accept basket；7th, connect under
Head；8th, blind plugging.
Specific embodiment
Embodiment 1
A kind of recyclable lower brill calker of oil gas field, it at least include top connection 1, blanking plug 3, tool barrel 4 and under connect
7, it is characterized in that：Tool barrel 4 is hollow cylindrical structure, and its upper/lower terminal is both provided with screw thread, the middle part setting of tool barrel 4
There is grooved bore 5, the bottom in tool barrel 4 is fixed with undertaking basket 7；Screw thread and tool barrel 4 are passed through in top connection 1 and lower contact 7 respectively
Upper/lower terminal be fixedly connected, lower contact 7 is fixedly connected with blind plugging 8；Shear pin 2 and tool barrel are passed through in the middle part of blanking plug 3
Upper end grappling, and the upper/lower terminal of blanking plug 3 has sealing ring.
Embodiment 2
As shown in figure 1, a kind of recyclable lower brill calker of oil gas field be by tool barrel 4, blanking plug 3 and top connection 1, under
Joint 7 collectively forms.
Tool barrel 4 is the hollow circuit cylinder cylinder that external diameter is 73mm, and its upper/lower terminal is both provided with screw thread, adopts 2-7/8 here
External upset tubing standard screw thread, a diameter of 93mm.
The middle part of tool barrel 4 be provided with length be 150mm to 200mm opening slot 5, opening slot 5 can link up stratum with
The gas channel of oil pipe inner chamber.
The lower inside of tool barrel 4 is provided with undertaking basket 6, accepts basket 6 and is used for catching the blanking plug 3 dropping, prevents from blocking
Device 3 enters in well.
Blanking plug 3 adopts the blanking plug of one-way bearing pressure 70MPa, and it is opened liquid nitrogen and is pumped as 15MPa to 21MPa.
The middle part of blanking plug 3 is anchored on the upper end of tool barrel 4, upper and lower two end faces of blanking plug 3 by shear pin 2
It is both provided with sealing ring, ensure that the sealing of oil pipe inner chamber.
The upper end of tool barrel 4 is passed through screw thread and is fixed with top connection 1, and top connection 1 with lower brill oil pipe in succession, will be whole by oil pipe
Constructed as in well under set calker.
The lower end of tool barrel 4 is passed through screw thread and is fixed with lower contact 7, and lower contact 7 carries blind plugging 8, can avoid further blocking up
Plug device 3 falls into well after completing construction.
The recyclable lower length boring calker of a whole set of oil gas field is that between 1050mm to 1100mm, this calker can
After realizing boring under oil gas field, blanking plug is reclaimed, the blanking plug well that falls can be avoided to cause follow-up well workover complicated, instrument is protected after rising out
Support repeatable utilization, embody green, environmental protection, efficient workover treatment theory.
The part of narration and structure in detail does not belong to well-known components and common structure or the conventional handss of the industry to the present embodiment
Section, does not describe here one by one.
Claims (1)
1. the recyclable lower brill calker of a kind of oil gas field, it at least includes top connection（1）, blanking plug（3）, tool barrel（4）With
Lower contact（7）, it is characterized in that：Tool barrel（4）It is hollow cylindrical structure, its upper/lower terminal is both provided with screw thread, tool barrel（4）
Middle part be provided with grooved bore（5）, tool barrel（4）Interior bottom is fixed with undertaking basket（7）；Top connection（1）With lower contact（7）Point
Tong Guo not screw thread and tool barrel（4）Upper/lower terminal be fixedly connected, lower contact（7）With blind plugging（8）It is fixedly connected；Blanking plug（3）
Middle part pass through shear pin（2）With the upper end grappling of tool barrel, and blanking plug（3）Upper/lower terminal have sealing ring；Described
Grooved bore（5）Length is 150mm to 200mm；Described blanking plug（3）One-way bearing pressure be 70MPa, blanking plug（3）Open
Liquid nitrogen is pumped as 15MPa to 21MPa；Described tool barrel（4）External diameter be 73mm, the screw thread of its upper/lower terminal is outside 2-7/8
Heavy wall tubing standard screw thread is 93mm；The entire length of this calker is 1050mm to 1100mm；Set by tool barrel
The grooved bore of meter is so that blanking plug being capable of ditch unsaturated zone and oil pipe interior air-flow passage after destroying；Meanwhile, it is provided with below tool barrel
Accept basket, and connect the lower contact with blind plugging it is ensured that destroying rear blanking plug to fall into undertaking basket, do not fall well, decrease follow-up
Gas well well workover construction is complicated.
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 CN103470208A (en) | 2013-12-25 |
| CN103470208B true CN103470208B (en) | 2017-03-01 |
Family
ID=49795232
Family Applications (1)
| 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)
| Country | Link |
|---|---|
| CN (1) | CN103470208B (en) |
Families Citing this family (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 |
| 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 |
| 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 |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2568944A (en) * | 1949-04-25 | 1951-09-25 | Western Gulf Oil Company | Retrievable bridge plug |
| 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 |
-
2013
- 2013-08-21 CN CN201310366082.7A patent/CN103470208B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470208A (en) | 2013-12-25 |
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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: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. |
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| TR01 | Transfer of patent right |