CN205605160U - Broken tail pipe blanking plug - Google Patents
Broken tail pipe blanking plug Download PDFInfo
- Publication number
- CN205605160U CN205605160U CN201620396634.8U CN201620396634U CN205605160U CN 205605160 U CN205605160 U CN 205605160U CN 201620396634 U CN201620396634 U CN 201620396634U CN 205605160 U CN205605160 U CN 205605160U
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- CN
- China
- Prior art keywords
- blanking plug
- plug body
- orientation spool
- rupture disk
- tail pipe
- Prior art date
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- 238000007789 sealing Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 210000002445 nipple Anatomy 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000003978 infusion fluid Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000000306 recurrent effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses a formula of breaking tail pipe blanking plug, blanking plug body, location nipple joint and rupture disk, blanking plug body upper end is the link, and the lower extreme seals fixed connection with location nipple joint upper end, and location nipple joint lower extreme is the link, and this internal with the rupture disk is fixed to blanking plug body and location nipple joint cooperation, and the rupture disk respectively with blanking plug body and location nipple joint seal cooperation. Adopt the utility model discloses, go into the fluid of intraductal pump after having gone down the pipe cluster and suppress pressure and make the seal break, reach the purpose that the pipe cluster and fluid intercommunication put into production in the well.
Description
Technical field
This utility model relates to one and ruptures formula tail pipe blanking plug, and completion tubular string operation depressed by the band for oil well, gas well
In pipe in blocking.Belong to tool-class under Oil/gas Well well workover with pressure, completion interval of well.
Background technology
Along with the exploitation of oil gas field, Operating Pressure is as the underground work technology of a kind of advanced person, it is possible to subtract to greatest extent
Few pollution to stratum, protects reservoir, safety and environmental protection and low cost, is promoted at many oil gas fields and applies.For preventing
Borehole fluid enters in pipe string, must use capping tools in pipe string.At present, in conventional Operating Pressure pipe string, capping tools is by electricity
Cable bridging plug, steel wire bridging plug, ball-and-seat, tail pipe blocking etc., band pressure completion tubular string commonly used tail pipe blocking.
Existing conventional tail pipe calker has blind plugging formula and two kinds of one-direction pressure-fixed joints of circulation type.They are all by this
Body, blockage body, level pressure pin and sealing ring composition, during operation pressure-fixed joint top with under enter pipe series winding and connect, lower step and screen casing or
Leading cone connects.Under pump in pipe after complete pipe string fluid build the pressure (circulation type pressure-fixed joint pumps into fluid after needing pitching) cut off
Level pressure pin, makes blockage body fall in screen casing (well), arrives pipe string and connect the purpose put into production with borehole fluid.
In after cutting off level pressure pin due to one-direction pressure-fixed joint, seal entirety falls into screen casing or well, when entering under completion tubular column
During horizontal segment, in later stage production process, seal is easily with borehole fluid recurrent canal string, and in blocking pipe string, latus rectum causes continuing
Continuous production.
Summary of the invention
The purpose of this utility model is the problems referred to above overcoming prior art to exist, it is provided that one ruptures the blocking of formula tail pipe
Device.Use this utility model, under in pipe, pump into fluid after complete pipe string build the pressure and make seal rupture, arrive pipe string and borehole fluid
The purpose that connection is put into production.
For achieving the above object, the technical solution adopted in the utility model is as follows:
One ruptures formula tail pipe blanking plug, it is characterised in that: blanking plug body, orientation spool and rupture disk, described blocking
Device body upper end is for connecting end, and lower end and orientation spool upper end are sealedly and fixedly connected, and orientation spool lower end is for connecting end, blanking plug
It is the most internal that rupture disk is fixed on blanking plug by body and orientation spool cooperation, and rupture disk is short with blanking plug body and location respectively
Joint seals and coordinates.
Described rupture disk is made up of friable material, including spacing fixed part and in orientation spool inner chamber indent arc knot
Structure, spacing fixed part coordinates with blanking plug body and orientation spool respectively to be fixed rupture disk, and arcuate structure is positioned at orientation spool
In inner chamber.
This internal positioning step that is provided with of described blanking plug, the spacing fixed part upper end of rupture disk coordinates with positioning step,
Lower end coordinates with orientation spool upper surface.
Sealing ring, spacing fixed part lower end it is provided with between spacing fixed part outer wall and the blanking plug body of described rupture disk
The orientation spool upper surface place of cooperation is provided with sealing ring.
Described blanking plug body upper end is provided with contacts the female thread connect, blanking plug body and orientation spool screw thread admittedly with pipe
Fixed connection, is provided with sealing ring between blanking plug body and orientation spool.
Described orientation spool lower end is provided with the external screw thread being connected with screen casing or leading cone, and middle part has and is connected with blanking plug body
External screw thread, external wall of upper portion is provided with 2 sealing ring annular grooves.
Employing the utility model has the advantage of:
1, this utility model is for a kind of band pressure completion tubular string with rupturing formula tail pipe blanking plug, and this blanking plug seals
Rupture disk be made up of the material being easily broken, under in pipe, pump into fluid after complete pipe string build the pressure and make rupture, arrive
Pipe string connects the purpose put into production with borehole fluid.
2, rupture disk is designed to arcuate structure by this utility model, and convex surface bearing capacity is far longer than concave surface；Under enter pipe string
Time convex surface can hold high pressure, after tripping strings with pressure has been constructed, build the pressure in pipe string top infusion fluid to pipe string and make rupture disk
Broken pressure reduction is little, favourable construction operation.
3, this utility model rupture disk uses friable material to make, and after building the pressure in pipe string, rupture disk is broken into fragment and falls into
In screen casing or well, the junk of large volume in well, will not be produced, production process will not occur junk recurrent canal string cause pipe string to block up
Plug phenomenon.
4, this utility model is applicable to the band pressure completion tubular string operation of oil well, gas well, it is possible to it is right to reduce to greatest extent
The pollution on stratum, protects reservoir, and its application is more and more extensive, has application to the fields such as drilling well, acid fracturing, completion, particularly
Shale gas well, the most generally uses the mode completion of band pressure oil pipe, and in pipe string, closure is that band pressure completion tubular string operation is crucial
One of technology, and tail pipe blocking is first-selected, along with shale gas commercialized development, ruptures formula tail pipe blanking plug and blocks as tail pipe
One of important tool will be widely used.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation
Figure is labeled as: 1, blanking plug body, 2, orientation spool, 3, sealing ring, 4, rupture disk.
Detailed description of the invention
Embodiment 1
One ruptures formula tail pipe blanking plug, and blanking plug body 1, orientation spool 2 and rupture disk 4, on described blanking plug body 1
End is for connecting end, and lower end and orientation spool 2 upper end are sealedly and fixedly connected, and orientation spool 2 lower end is for connecting end, blanking plug body 1
Coordinate with orientation spool 2 and rupture disk 4 be fixed in blanking plug body 1, and rupture disk 4 respectively with blanking plug body 1 and location
Pipe nipple 2 seals and coordinates.
In the present embodiment, described rupture disk 4 is made up of friable material, including spacing fixed part with to orientation spool 2 inner chamber
The arcuate structure of middle indent, spacing fixed part coordinates with blanking plug body 1 and orientation spool 2 respectively to be fixed rupture disk 4, arc
Structure is positioned in orientation spool 2 inner chamber.
In the present embodiment, in described blanking plug body 1, be provided with positioning step, the spacing fixed part upper end of rupture disk 4 with
Positioning step coordinates, and lower end coordinates with orientation spool 2 upper surface.
In the present embodiment, between spacing fixed part outer wall and the blanking plug body 1 of described rupture disk 4, it is provided with sealing ring 3,
Spacing fixed part lower end is provided with sealing ring 3 with the orientation spool 2 upper surface place of cooperation.
In the present embodiment, described blanking plug body 1 upper end is provided with contacts the female thread that connects with pipe, blanking plug body 1 with
Orientation spool 2 is screwed connection, is provided with sealing ring 3 between blanking plug body 1 and orientation spool 2.
In the present embodiment, described orientation spool 2 lower end is provided with the external screw thread being connected with screen casing or leading cone, and middle part has with stifled
The external screw thread that plug device body 1 connects, external wall of upper portion is provided with 2 sealing ring annular grooves.
Embodiment 2
The present embodiment combines accompanying drawing and is described further this utility model.
As it can be seen, this utility model includes blanking plug body 1, orientation spool 2, sealing ring 3 and rupture disk 4.Blanking plug
Body 1 upper design has the female thread connect with pipe series winding, and middle part endoporus has positioning step, and there is sealing ring position below positioning step
Annular groove, the female thread being connected with orientation spool 2 is arranged at bottom；Orientation spool bottom is designed with the outer spiral shell being connected with screen casing or leading cone
Stricture of vagina, middle part has the external screw thread being connected with blanking plug body 1, top cylindrical to have 2 sealing ring annular grooves.
Rupture disk 4 loads in blanking plug body 1, and rupture disk 4 is fixed on the positioning table of blanking plug body 1 by orientation spool 2
On rank；3 cushioning effects of sealing ring that spacing fixed part lower end is arranged with the orientation spool upper surface place of cooperation, prevent rupture disk from anticipating
Outer broken.
Band pressure completion tubular pipe string operation time, first connect hydraulic test pump pressure testing, qualified after be installed in down pipe string
Bottom, orientation spool connects screen casing or leading cone.To enter under tubing string in Oil/gas Well pit shaft, prevent downhole well fluid from entering pipe string
In.
In tripping strings operation with pressure, this ruptures formula tail pipe blanking plug and is connected to pipe string afterbody, blanking plug body 1 and pipe
Series winding connects, and orientation spool 2 is connected with screen casing or leading cone by external screw thread, and borehole fluid is sealed in rupture disk 4 bottom, it is impossible to enter
Enter in pipe string.After tripping strings with pressure has been constructed, build the pressure in pipe string top infusion fluid to pipe string and make rupture disk 4 crush,
Pipe string connects with borehole fluid, and the pipe string that Oil/gas Well enters under passing through puts into production.
Claims (6)
1. one kind ruptures formula tail pipe blanking plug, it is characterised in that: blanking plug body (1), orientation spool (2) and rupture disk (4), institute
State blanking plug body (1) upper end to be sealedly and fixedly connected for connection end, lower end and orientation spool (2) upper end, orientation spool (2) lower end
For connecting end, rupture disk (4) is fixed in blanking plug body (1) by blanking plug body (1) and orientation spool (2) cooperation, and broken
Split dish (4) to coordinate with blanking plug body (1) and orientation spool (2) sealing respectively.
The most according to claim 1 rupture formula tail pipe blanking plug, it is characterised in that: described rupture disk (4) is by friable material
Make, including spacing fixed part and in orientation spool (2) inner chamber the arcuate structure of indent, spacing fixed part respectively with blanking plug
Body (1) and orientation spool (2) coordinate to be fixed rupture disk (4), and arcuate structure is positioned in orientation spool (2) inner chamber.
The most according to claim 2 rupture formula tail pipe blanking plug, it is characterised in that: arrange in described blanking plug body (1)
Having positioning step, the spacing fixed part upper end of rupture disk (4) coordinates with positioning step, and lower end is joined with orientation spool (2) upper surface
Close.
The most according to claim 3 rupture formula tail pipe blanking plug, it is characterised in that: described rupture disk (4) spacing fixing
Being provided with sealing ring (3) between portion's outer wall and blanking plug body (1), spacing fixed part lower end is joined with orientation spool (2) upper surface
Sealing ring (3) it is provided with at conjunction.
The most according to claim 4 rupture formula tail pipe blanking plug, it is characterised in that: described blanking plug body (1) upper end sets
Being equipped with and contact the female thread that connects with pipe, blanking plug body (1) is screwed with orientation spool (2) and is connected, blanking plug body (1) and
Sealing ring (3) it is provided with between orientation spool (2).
The most according to claim 5 rupture formula tail pipe blanking plug, it is characterised in that: described orientation spool (2) lower end is arranged
Having the external screw thread being connected with screen casing or leading cone, there is the external screw thread being connected with blanking plug body (1) at middle part, and external wall of upper portion is provided with
2 sealing ring annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396634.8U CN205605160U (en) | 2016-05-05 | 2016-05-05 | Broken tail pipe blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396634.8U CN205605160U (en) | 2016-05-05 | 2016-05-05 | Broken tail pipe blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205605160U true CN205605160U (en) | 2016-09-28 |
Family
ID=56968380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620396634.8U Active CN205605160U (en) | 2016-05-05 | 2016-05-05 | Broken tail pipe blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205605160U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930729A (en) * | 2017-01-24 | 2017-07-07 | 中国海洋石油总公司 | Electric submersible pump pump head blocking device and it is invested in the setting plug of electric submersible pump pump head |
| CN109577904A (en) * | 2018-11-29 | 2019-04-05 | 四川圣诺油气工程技术服务有限公司 | A kind of dissolvable formula tail pipe blanking plug |
| CN110242243A (en) * | 2019-06-06 | 2019-09-17 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | A kind of separate type pressure-bearing blanking plug and its application method for down-hole string |
| CN110374530A (en) * | 2019-07-16 | 2019-10-25 | 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 | Method for increasing running depth of tubing string by changing density of fluid in tubing |
| CN112878948A (en) * | 2021-03-23 | 2021-06-01 | 广汉华圣石油装备有限公司 | Rupture disk |
| CN114439415A (en) * | 2020-11-04 | 2022-05-06 | 中国石油天然气股份有限公司 | Double-barrier oil pipe plugging device and method for pressurized well completion operation |
| CN114961656A (en) * | 2022-05-16 | 2022-08-30 | 江苏斯普瑞石油装备有限公司 | Gas-lift production string with pressure-limiting fracturing plug device and oil well plugging operation method |
-
2016
- 2016-05-05 CN CN201620396634.8U patent/CN205605160U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930729A (en) * | 2017-01-24 | 2017-07-07 | 中国海洋石油总公司 | Electric submersible pump pump head blocking device and it is invested in the setting plug of electric submersible pump pump head |
| CN109577904A (en) * | 2018-11-29 | 2019-04-05 | 四川圣诺油气工程技术服务有限公司 | A kind of dissolvable formula tail pipe blanking plug |
| CN110242243A (en) * | 2019-06-06 | 2019-09-17 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | A kind of separate type pressure-bearing blanking plug and its application method for down-hole string |
| CN110374530A (en) * | 2019-07-16 | 2019-10-25 | 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 | Method for increasing running depth of tubing string by changing density of fluid in tubing |
| CN114439415A (en) * | 2020-11-04 | 2022-05-06 | 中国石油天然气股份有限公司 | Double-barrier oil pipe plugging device and method for pressurized well completion operation |
| CN114439415B (en) * | 2020-11-04 | 2023-12-26 | 中国石油天然气股份有限公司 | Double-barrier oil pipe blocking device and method for pressurized well completion operation |
| CN112878948A (en) * | 2021-03-23 | 2021-06-01 | 广汉华圣石油装备有限公司 | Rupture disk |
| CN114961656A (en) * | 2022-05-16 | 2022-08-30 | 江苏斯普瑞石油装备有限公司 | Gas-lift production string with pressure-limiting fracturing plug device and oil well plugging operation method |
| CN114961656B (en) * | 2022-05-16 | 2024-02-23 | 江苏斯普瑞石油装备有限公司 | Gas lift production string with pressure limiting fracture plug device and oil well plugging operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |