CN202417367U - Expandable tail pipe hanger - Google Patents
Expandable tail pipe hanger Download PDFInfo
- Publication number
- CN202417367U CN202417367U CN 201120549858 CN201120549858U CN202417367U CN 202417367 U CN202417367 U CN 202417367U CN 201120549858 CN201120549858 CN 201120549858 CN 201120549858 U CN201120549858 U CN 201120549858U CN 202417367 U CN202417367 U CN 202417367U
- Authority
- CN
- China
- Prior art keywords
- expansion
- tail pipe
- piston
- expansion tube
- expansion cone
- 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.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 claims description 16
- 238000010276 construction Methods 0.000 abstract description 11
- 208000034656 Contusions Diseases 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Abstract
The utility model relates to a tail pipe well cementation and completion tool, in particular to an expandable tail pipe hanger. The lower end of an expansion pipe of the tail pipe hanger is connected with a sleeve; the inner wall of the expansion pipe at the upper end of the sleeve is provided with a sleeve left hand thread and connected with the lower end of a back-off joint through the left hand thread; a spline liquid flow channel is reserved on the outer side of the expansion pipe; the upper end of an expansion cone is conical; the expansion cone is connected with the expansion pipe through a clamping spring in a groove at the lower end of the expansion cone; the lower end of a central rod is buckled with the upper end of the back-off joint; the outer side of the upper end of the central rod is in threaded connection with a hydraulic cylinder; a piston is arranged at the upper end of the expansion cone and arranged in the hydraulic cylinder; and a liquid inlet communicated with a hydraulic cavity at the upper end of the piston is formed at the upper end of the central rod. By the tail pipe hanger, a release is expanded and hung first and then cement is injected for bruising construction, so that the construction risk is reduced; and the defect that the construction risk is high because the cement is injected first and then the release is expanded in the conventional expandable tail pipe hanger is overcome.
Description
Technical field:
The utility model relates to a kind of drilling liner cementing completion tool, particularly a kind of inflatable extension hanger.
Background technology:
Present inflatable extension hangers that expand and give up after adopting a kind of first cementing in the liner completion construction more, this hanger construction risk is high, will increase certain difficulty to subsequent treatment once lose not open, have in addition scrapping of causing whole well.
The utility model content:
The technical problem that the utility model will solve provides a kind of inflatable extension hanger, and this extension hanger has been realized carrying out cementing bruising construction again after first expansion suspension is given up, and has reduced construction risk.Having overcome expands after the cementing of existing inflatable extension hanger elder generation gives up the deficiency that construction risk is high.
The technical scheme that the utility model is taked is: a kind of inflatable extension hanger comprises expansion tube, expansion cone, piston, fluid cylinder and center-pole; The expansion tube lower end is connected with sleeve pipe; Be designed with sleeve pipe left-hand thread screw thread on the expansion tube inwall of sleeve pipe upper end and be connected with back-off joint lower end left-hand thread; The fluid course of spline type is left in the expansion tube outside, and the expansion cone upper end is tapered, and expansion cone is connected with expansion tube through the jump ring in the groove of lower end; Center-pole lower end and back-off upper end of joint buckle; The outside, center-pole upper end is threaded with fluid cylinder, and piston places the expansion cone upper end and is installed in the fluid cylinder, and the center-pole upper end has the inlet opening that is connected with the hydraulic cavities of piston upper end.
Expansion tube is provided with anti-back deduction structure.
The beneficial effect of the utility model is: the utility model is owing to adopted the mode that leaves the fluid course of spline type in the expansion tube outside; Thereby, expansion tube still can satisfy the requirement of cementing well overcurrent after expanding; Realized carrying out cementing bruising construction again after first expansion suspension is given up, reduced construction risk; In addition, the expansion tube of the utility model is close on the sleeve pipe of upper strata, at last interruption-forming typhon mouth very close to each other, helps being lowered to of subsequent job instrument, reduces the activity duration and to the damage of instrument.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Accompanying drawing is the structural representation of the utility model.
The specific embodiment:
Shown in accompanying drawing, a kind of inflatable extension hanger comprises expansion tube 4, expansion cone 5, piston 6, fluid cylinder 7 and center-pole 8; Expansion tube 4 lower ends are connected with sleeve pipe 1, are designed with sleeve pipe left-hand thread screw thread on expansion tube 4 inwalls of sleeve pipe 1 upper end and are connected with back-off joint 2 lower end left-hand threads, and the fluid course of spline type is left in expansion tube 4 outsides; After the expansion only the external tooth of spline be close on the sleeve pipe; Play the purpose of suspension sleeve, expansion cone 5 upper ends are tapered, and expansion cone 5 is connected with expansion tube 4 through the jump ring in the groove of lower end 3; Center-pole 8 lower ends and back-off joint 2 upper end buckle; The outside, center-pole 8 upper ends is threaded with fluid cylinder 7, and piston 6 places expansion cone 5 upper ends and is installed in the fluid cylinder 7, and the sealing ring of inner and outer sealing is arranged on the piston 6; Center-pole 8 upper ends have the inlet opening that is connected with the hydraulic cavities of piston 6 upper ends, can be piston 6 hydraulic coupling is provided.Expansion tube 4 is provided with anti-back deduction structure.
Suppress earlier during construction; Flow gets into fluid cylinder 7 through the inlet opening on the center-pole 8; It is descending to promote piston 6, and piston 6 promotes expansion cone 5 makes expansion tube 4 produce expansion, and the spline external tooth on the expansion tube 4 is close on the sleeve pipe; Expansion tube 4 inboard anti-back deduction structures force jump ring 3 related expansion cone 5 can only advance to go out and tightly are locked in the expansion tube 4, thereby play the purpose of suspension sleeve; Through just changeing drilling rod center-pole 8, fluid cylinder 7 are thrown off from sleeve pipe behind the expansion hanging end.Owing to the fluid course of spline type is arranged on the expansion tube 4, can proceed normal cementing job and bruising completion practice.
It is understandable that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.
Claims (2)
1. an inflatable extension hanger comprises expansion tube (4), expansion cone (5), piston (6), fluid cylinder (7) and center-pole (8); It is characterized in that: expansion tube (4) lower end is connected with sleeve pipe (1); Be designed with sleeve pipe left-hand thread screw thread on expansion tube (4) inwall of sleeve pipe (1) upper end and be connected with back-off joint (2) lower end left-hand thread; The fluid course of spline type is left in expansion tube (4) outside, and expansion cone (5) upper end is tapered, and expansion cone (5) is connected with expansion tube (4) through the jump ring (3) in the groove of lower end; Center-pole (8) lower end and back-off joint (2) upper end buckle; The outside, center-pole (8) upper end is threaded with fluid cylinder (7), and piston (6) places expansion cone (5) upper end and is installed in the fluid cylinder (7), and center-pole (8) upper end has the inlet opening that is connected with the hydraulic cavities of piston (6) upper end.
2. according to the described inflatable extension hanger of claim 1, it is characterized in that: said expansion tube (4) is provided with anti-back deduction structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120549858 CN202417367U (en) | 2011-12-26 | 2011-12-26 | Expandable tail pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120549858 CN202417367U (en) | 2011-12-26 | 2011-12-26 | Expandable tail pipe hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417367U true CN202417367U (en) | 2012-09-05 |
Family
ID=46742140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120549858 Expired - Fee Related CN202417367U (en) | 2011-12-26 | 2011-12-26 | Expandable tail pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417367U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996089A (en) * | 2012-11-24 | 2013-03-27 | 西南石油大学 | Multi-stage hydraulic expansion tail pipe suspension system with reducing expansion cone for horizontal well for thermal recovery of heavy oil |
| CN104213861A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Expansion tube expansion technological method and tool system |
| CN104747109A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Pressurization expansion mechanism used for expansion hanger |
| CN105781461A (en) * | 2016-03-29 | 2016-07-20 | 新疆永升能源有限责任公司 | Hydraulic expandable liner hanger provided with double-safety releasing gadget |
| CN106150414A (en) * | 2016-06-30 | 2016-11-23 | 西南石油大学 | A kind of mechanical and hydraulic double-acting rotary liner hanger of anti-slips retraction |
| CN108463612A (en) * | 2016-02-29 | 2018-08-28 | 哈里伯顿能源服务公司 | Collapsible cone for expandable liner hanger system |
-
2011
- 2011-12-26 CN CN 201120549858 patent/CN202417367U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996089A (en) * | 2012-11-24 | 2013-03-27 | 西南石油大学 | Multi-stage hydraulic expansion tail pipe suspension system with reducing expansion cone for horizontal well for thermal recovery of heavy oil |
| CN102996089B (en) * | 2012-11-24 | 2015-05-13 | 西南石油大学 | Multi-stage hydraulic expansion tail pipe suspension system with reducing expansion cone for horizontal well for thermal recovery of heavy oil |
| CN104213861A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Expansion tube expansion technological method and tool system |
| CN104213861B (en) * | 2013-06-05 | 2016-09-07 | 中国石油天然气集团公司 | A kind of expansion tube expanding process and tool system |
| CN104747109A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Pressurization expansion mechanism used for expansion hanger |
| CN108463612A (en) * | 2016-02-29 | 2018-08-28 | 哈里伯顿能源服务公司 | Collapsible cone for expandable liner hanger system |
| US10837265B2 (en) | 2016-02-29 | 2020-11-17 | Halliburton Energy Services, Inc. | Collapsible cone for an expandable liner hanger system |
| CN105781461A (en) * | 2016-03-29 | 2016-07-20 | 新疆永升能源有限责任公司 | Hydraulic expandable liner hanger provided with double-safety releasing gadget |
| CN105781461B (en) * | 2016-03-29 | 2018-04-10 | 新疆永升能源有限责任公司 | Hydraulic Double releasing gadget expandable liner hanger |
| CN106150414A (en) * | 2016-06-30 | 2016-11-23 | 西南石油大学 | A kind of mechanical and hydraulic double-acting rotary liner hanger of anti-slips retraction |
| CN106150414B (en) * | 2016-06-30 | 2018-06-29 | 西南石油大学 | A kind of mechanical and hydraulic double-acting rotary liner hanger of anti-slips retraction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20121226 |