CN103790533B - Can cement the well buckling type tail pipe hanger - Google Patents
Can cement the well buckling type tail pipe hanger Download PDFInfo
- Publication number
- CN103790533B CN103790533B CN201410003505.3A CN201410003505A CN103790533B CN 103790533 B CN103790533 B CN 103790533B CN 201410003505 A CN201410003505 A CN 201410003505A CN 103790533 B CN103790533 B CN 103790533B
- Authority
- CN
- China
- Prior art keywords
- tail pipe
- swollen cone
- expansion tube
- well
- swollen
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention provides one can cement the well buckling type tail pipe hanger, comprising: expansion tube, its lower end connects tail pipe variable buckle；Central canal, it is located in described expansion tube, and the lower end of described central canal connects has swollen cone seat, the outer sheath of described swollen cone seat to be provided with swollen cone, and the lower end of described swollen cone seat connects swollen cone locking jaw；Cementing plug, it is connected to the lower end of described swollen cone locking jaw, and described cementing plug is located in described tail pipe variable buckle.The cemented the well buckling type tail pipe hanger of the present invention, it is swollen, and cone seat can effectively seal swollen cone and expansion tube, and the situation polluting swollen cone work surface in well cementation squeeze method and displacement process can be avoided to occur.
Description
Technical field
The present invention is related to a kind of extension hanger, swollen more particularly to cementing the well of application in a kind of petroleum industry field
Expanding extension hanger.
Background technology
Bulged tube technology is the new technique being surging forward in recent years, and it can be applicable to drilling well, completion and oil recovery, repaiies
The operation process such as well.Expandable casing patching technology is the most highly developed, and buckling type tail pipe hanger is as expansion tube skill
A kind of new opplication structure of art, is faced with complex hole condition and construction technology that a lot of expandable casing patching does not faces.
First, during liner completion, expansion hanger is by bore hole and tunica pipe separate sealed, and hanger is positioned at
In tunica pipe, but face bore hole working environment, owing to the expansion of expansion tube is a precision stage, expansion cone and expansion
There is fine cooperation between pipe, in well cementing process, mud and displacement fluid can flow into inside expansion hanger, to expansion
In pipe, the interoperation of each structural member produces impact.
Secondly as hanger overall dimensions is relatively big, and between tunica pipe, annular space is less, and has several layers of rubber ring to be formed
Throttle effect, hanger there will be instantaneous high pressure during well cementation squeeze method, completion tail pipe can be caused to be not fully complete water squeezing
Mud, the problem that hanger has begun to expand.
Further, owing to completion tubular column is the longest, under enter process and well cementing process need movable tubing string, to guarantee well cementation
Quality, existing expansion hanger does not have rotatable function.
Therefore, it is necessary to provide a kind of new hanger, overcome drawbacks described above.
Summary of the invention
It is an object of the invention to provide one can cement the well buckling type tail pipe hanger, it is swollen, and cone seat can effectively seal swollen cone
With expansion tube, the situation polluting swollen cone work surface in well cementation squeeze method and displacement process can be avoided to occur.
The above-mentioned purpose of the present invention can use following technical proposal to realize:
The present invention provides one can cement the well buckling type tail pipe hanger, and described buckling type tail pipe hanger of cementing the well includes:
Expansion tube, its lower end connects tail pipe variable buckle；
Central canal, it is located in described expansion tube, and the lower end of described central canal connects swollen cone seat, described swollen
The outer sheath of cone seat is provided with swollen cone, and the lower end of described swollen cone seat connects swollen cone locking jaw, and the lower end of described expansion tube is even
Being connected to double public variable buckle, described double public variable buckles are connected with described tail pipe variable buckle, and the medial wall of described double public variable buckles is radially-inwardly
Being convexly equipped with multiple spline, the lateral wall of described swollen cone locking jaw is radially outward convexly equipped with multiple locking projection, described swollen cone
Locking jaw is located in described double public variable buckle, and described spline is embedded between the most described locking projection；
Cementing plug, it is connected to the lower end of described swollen cone locking jaw, and described cementing plug is located in described tail pipe
In variable buckle.
In a preferred embodiment, it is connected by shear pin between described cementing plug with described swollen cone locking jaw.
In a preferred embodiment, it is provided with dust ring between described central canal and described expansion tube.
In a preferred embodiment, the upper end of described central canal connects drill pipe nipple, the outside of described drill pipe nipple
Connecting and have expansion tube back of the body mother, the upper end contact of described expansion tube is on described expansion tube back of the body mother.
In a preferred embodiment, the outside of described swollen cone seat is convexly equipped with sealing ring, described sealing ring and described expansion
The medial wall of pipe is in sealing contact, and described swollen cone is positioned at the upper end of described sealing ring.
In a preferred embodiment, multiple sealing ring it is provided with between described sealing ring and described expansion tube.
In a preferred embodiment, it is provided with multiple sealing ring between described swollen cone and described expansion tube.
Feature and the advantage of the cemented the well buckling type tail pipe hanger of the present invention be: projection is in the sealing of swollen cone seat lateral wall
Ring can effectively seal and coordinate face between swollen cone and expansion tube, it is to avoid pollute swollen cone in well cementation squeeze method and displacement process
The situation of work surface occurs；The cementing plug of swollen cone locking jaw lower end it is connected to, it is possible to be prevented effectively from by shear pin
What the instantaneous pressure that squeeze method process produces caused is not fully complete the problem that squeeze method i.e. starts to expand；It addition, swollen cone locking
Multiple locking projections of pawl carry out being embedded location by multiple splines of double public variable buckles, and when cementing the well, buckling type tail hangs
After in device lower going-into-well, according to job demand rotatable well cementation tubing string, the buckling type tail pipe hanger that prevents from cementing the well was gone into the well
Cheng Zhong, cause owing to tubing string is long tubing string can not smoothly under enter the problem in precalculated position, to improve cementing quality.This
Bright cemented the well buckling type tail pipe hanger, is combined hanger with well cementation tubing string, and its construction technology is simple.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the structural representation of the cemented the well buckling type tail pipe hanger of the present invention.
Fig. 2 is the structural representation of the swollen cone locking jaw of the cemented the well buckling type tail pipe hanger of the present invention.
Fig. 3 be the cemented the well buckling type tail pipe hanger of the present invention put into the structural representation suppressing plug.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the present invention provides one can cement the well buckling type tail pipe hanger, it includes expansion tube 1, center
Pipe 2 and cementing plug 3, wherein: the lower end of expansion tube 1 connects tail pipe variable buckle 4；Central canal 2 is located in described
In expansion tube 1, the lower end of described central canal 2 connects swollen cone seat 21, and the outer sheath of described swollen cone seat 21 is provided with swollen
Cone 22, the lower end of described swollen cone seat 21 connects swollen cone locking jaw 23；Cementing plug 3 is connected to described swollen cone locking
The lower end of pawl 23, described cementing plug 3 is located in described tail pipe variable buckle 4.
Specifically, expansion tube 1 is substantially in cylindrical tube, and its lower end connects tail pipe variable buckle 4, and this tail pipe variable buckle 4 is used
In being connected with tail pipe tubing string.In the present invention, it is connected between expansion tube 1 with tail pipe variable buckle 4 and has double public variable buckle 5,
The upper end outside screw of double public variable buckles 5 is connected to the lower end inside of expansion tube 1, the lower end outside screw thread of double public variable buckles 5
Being connected to inside the upper end of tail pipe variable buckle 4, the medial wall of this pair of public variable buckle 5 is radially-inwardly convexly equipped with multiple spline 51,
Those splines 51 are arranged at equal intervals along the circumferencial direction of the medial wall of double public variable buckles 5.
Central canal 2 is substantially in cylindrical tube, and its upper end outside screw connects drill pipe nipple 6, and this drill pipe nipple 6 is used
In being connected with drilling rod tubing string, the lower end outside of drill pipe nipple 6 is threaded has the expansion tube back of the body female 61, when central canal 2
After being located in expansion tube 1, the upper end contact of expansion tube 1 is on this expansion tube back of the body female 61.
The upper end outside screw of swollen cone seat 21 is connected to the lower end inside of central canal 2, in the present invention, swollen cone seat 21
Lateral wall be radially outward convexly equipped with sealing ring 211, this sealing ring 211 is in sealing contact with the medial wall of expansion tube 1,
It is set in the swollen cone 22 lower end contact outside swollen cone seat 21 in the upper end of this sealing ring 211, the top, upper end of swollen cone 22
It is against the lower end of central canal 2.
Please refer to shown in Fig. 2, the upper end inside thread of swollen cone locking jaw 23 is connected to outside the lower end of swollen cone seat 21
Side, in the present invention, the lateral wall of swollen cone locking jaw 23 is radially outward convexly equipped with multiple locking projection 231, those
Locking projection 231 is arranged at equal intervals along the circumferencial direction of the lateral wall of swollen cone locking jaw 23；Further, swollen cone lock
The lower end of tight pawl 23 has multiple spaced locking jaw 232, and the lower end of each locking jaw 232 is the most convex
Being provided with fin 233, after swollen cone locking jaw 23 is located in double public variable buckle 5, the spline 51 of double public variable buckles 5 is embedded
Between the projection of locking two-by-two 231 of swollen cone locking jaw 23, and multiple fins 233 of swollen cone locking jaw 23 lower end card sets
Lower end in double public variable buckles 5；In the present invention, it was formed with stream ring between swollen cone locking jaw 23 and double public variable buckle 5
Road 52, this crosses stream circuit 52 and swollen cone seat 21 outer wall and the expansion tube 1 being positioned at swollen cone seat 21 sealing ring 211 bottom
Between annular space 212 be connected.
The upper end of cementing plug 3 is connected on the fin 233 of swollen cone locking jaw 23 lower end by shear pin 31, its
Lower end outside is arranged with jaw 32, and cementing plug 3 is worn by its jaw 32 and is sealed in tail pipe variable buckle 4.
The work process of this buckling type tail pipe hanger of can cementing the well is as follows: shown in Figure 3, first, can cement the well
Buckling type tail pipe hanger is connected to the upper end of tail pipe tubing string, and drilling rod tubing string is connected to buckling type tail suspension of can cementing the well
The upper end of device, afterwards precalculated position under lower going-into-well；Now, circulating mud, squeeze method, and enter to suppress glue from well head
Plug 9, suppresses plug 9 and enters and setting at cementing plug 3 in the central canal 2 of buckling type tail pipe hanger of can cementing the well
In；Then, suppress from well head water filling, under the effect of water injection pressure, suppress plug 9 and drive cementing plug 3 axial
Move down, after water injection pressure reaches certain value, be connected to cutting between cementing plug 3 and swollen cone locking jaw 23
Cut pin 31 to be cut off, suppress plug 9 and together fall in tail pipe tubing string with cementing plug 3, complete well cementation；This
Time, continue from well head water filling, along with the increase of water injection pressure, injecting water will be public with double from swollen cone locking jaw 23 lower end
Stream circuit 52 of crossing between variable buckle 5 flows in the annular space 212 between swollen cone seat 21 and expansion tube 1, is constantly increasing
Water injection pressure effect under, swollen cone seat 21 moves axially upwards, thus drives swollen cone locking jaw 23 to disengage double public change
The card detaining 5 lower ends sets and axially upper shifting, and the most swollen cone seat 21 drives swollen cone 22 thereon axially upper shifting, swollen to realize
The purpose of swollen expansion tube 1.
The cemented the well buckling type tail pipe hanger of the present invention, the projection sealing ring 211 in swollen cone seat 21 lateral wall can
Effectively seal and coordinate face between swollen cone 22 and expansion tube 1, it is to avoid well cementation squeeze method and displacement process pollute swollen cone
The situation of work surface occurs；The cementing plug 3 of swollen cone locking jaw 23 lower end it is connected to by shear pin 31, it is possible to
Be prevented effectively from squeeze method process produce instantaneous pressure cause be not fully complete squeeze method i.e. start expand problem；It addition,
Multiple locking projections 231 of swollen cone locking jaw 23 carry out being embedded location by multiple splines 51 of double public variable buckles 5, when
Can cement the well after in buckling type tail pipe hanger lower going-into-well, according to job demand rotatable well cementation tubing string, prevent from cementing the well swollen
During expanding extension hanger is gone into the well, cause owing to tubing string is long tubing string can not smoothly under enter the problem in precalculated position,
To improve cementing quality.The cemented the well buckling type tail pipe hanger of the present invention, is combined hanger with well cementation tubing string, its
Construction technology is simple.
According to an embodiment of the invention, between described central canal 2 and described expansion tube 1, it is provided with dust ring 7.
This dust ring 7 enters in expansion tube 1 for impurity such as mode dusts, and pollutes expansion tube inwall.
According to an embodiment of the invention, between described sealing ring 211 and described expansion tube 1, described swollen cone
Multiple sealing ring 8 it is respectively equipped with between 22 and described expansion tube 1.Those sealing rings 8 be used for sealing sealing ring 211 with
Gap between expansion tube 1, between swollen cone 22 and expansion tube 1, prevents from polluting in cementing concrete and displacement process swollen
Bore 22 work surfaces.
The foregoing is only several embodiments of the present invention, those skilled in the art is according to application documents disclosure
The embodiment of the present invention can be carried out various change or modification without departing from the spirit and scope of the present invention.
Claims (7)
1. a buckling type tail pipe hanger of can cementing the well, it is characterised in that described buckling type tail pipe hanger of cementing the well
Including:
Expansion tube, its lower end connects tail pipe variable buckle；
Central canal, it is located in described expansion tube, and the lower end of described central canal connects swollen cone seat, described swollen
The outer sheath of cone seat is provided with swollen cone, and the lower end of described swollen cone seat connects swollen cone locking jaw, and the lower end of described expansion tube is even
Being connected to double public variable buckle, described double public variable buckles are connected with described tail pipe variable buckle, and the medial wall of described double public variable buckles is radially-inwardly
Being convexly equipped with multiple spline, the lateral wall of described swollen cone locking jaw is radially outward convexly equipped with multiple locking projection, described swollen cone
Locking jaw is located in described double public variable buckle, and described spline is embedded between the most described locking projection；
Cementing plug, it is connected to the lower end of described swollen cone locking jaw, and described cementing plug is located in described tail pipe
In variable buckle.
Can cement the well the most as claimed in claim 1 buckling type tail pipe hanger, it is characterised in that described cementing plug
It is connected by shear pin with between described swollen cone locking jaw.
Can cement the well the most as claimed in claim 1 buckling type tail pipe hanger, it is characterised in that described central canal with
It is provided with dust ring between described expansion tube.
Can cement the well the most as claimed in claim 1 buckling type tail pipe hanger, it is characterised in that described central canal
Upper end connects drill pipe nipple, and the outside of described drill pipe nipple connects expansion tube back of the body mother, the top, upper end of described expansion tube
It is against on described expansion tube back of the body mother.
Can cement the well the most as claimed in claim 1 buckling type tail pipe hanger, it is characterised in that described swollen cone seat
Outside is convexly equipped with sealing ring, and described sealing ring is in sealing contact with the medial wall of described expansion tube, and described swollen cone is positioned at described
The upper end of sealing ring.
Can cement the well the most as claimed in claim 5 buckling type tail pipe hanger, it is characterised in that described sealing ring with
Multiple sealing ring it is provided with between described expansion tube.
Can cement the well the most as claimed in claim 1 buckling type tail pipe hanger, it is characterised in that described swollen cone and institute
State and between expansion tube, be provided with multiple sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410003505.3A CN103790533B (en) | 2014-01-03 | 2014-01-03 | Can cement the well buckling type tail pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410003505.3A CN103790533B (en) | 2014-01-03 | 2014-01-03 | Can cement the well buckling type tail pipe hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103790533A CN103790533A (en) | 2014-05-14 |
| CN103790533B true CN103790533B (en) | 2016-08-17 |
Family
ID=50666545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410003505.3A Active CN103790533B (en) | 2014-01-03 | 2014-01-03 | Can cement the well buckling type tail pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103790533B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604508B (en) * | 2015-12-18 | 2018-04-06 | 中国石油天然气股份有限公司 | Extension hanger |
| CN107724991A (en) * | 2017-10-30 | 2018-02-23 | 华鼎鸿基石油工程技术(北京)有限公司 | Buckling type tail pipe hanger with slips |
| CN109736733A (en) * | 2019-02-01 | 2019-05-10 | 中国地质科学院勘探技术研究所 | A kind of expansion tube tripping in device |
| CN113389509A (en) * | 2021-07-20 | 2021-09-14 | 河北上善石油机械有限公司 | Liner hanger for well completion |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122220A (en) * | 2007-09-21 | 2008-02-13 | 中国石油天然气集团公司 | Swelling type screen pipe suspension method and swelling type screen pipe hanger |
| CN101173601A (en) * | 2007-11-29 | 2008-05-07 | 中国石油天然气集团公司 | Rotatable hydraulic expanding type tail pipe hanger |
| CN101575951A (en) * | 2008-05-05 | 2009-11-11 | 上海管力卜石油设备有限公司 | Petroleum expansion pipe hanger and construction technology |
| CN101598006A (en) * | 2009-07-17 | 2009-12-09 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | A kind of hydraulic buckling type tail pipe hanger |
| CN101906946A (en) * | 2009-06-04 | 2010-12-08 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion-type rotary liner hanger |
| CN102953698A (en) * | 2011-08-23 | 2013-03-06 | 中国石油化工股份有限公司 | Expansion-type rotatable tail pipe hanger |
| CN202832323U (en) * | 2012-08-23 | 2013-03-27 | 中国石油天然气股份有限公司 | Locking type expansion drilling liner hanger |
| CN203729925U (en) * | 2014-01-03 | 2014-07-23 | 中国石油天然气股份有限公司 | Expansion type liner hanger allowing well cementation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7225880B2 (en) * | 2004-05-27 | 2007-06-05 | Tiw Corporation | Expandable liner hanger system and method |
| US8393389B2 (en) * | 2007-04-20 | 2013-03-12 | Halliburton Evergy Services, Inc. | Running tool for expandable liner hanger and associated methods |
-
2014
- 2014-01-03 CN CN201410003505.3A patent/CN103790533B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122220A (en) * | 2007-09-21 | 2008-02-13 | 中国石油天然气集团公司 | Swelling type screen pipe suspension method and swelling type screen pipe hanger |
| CN101173601A (en) * | 2007-11-29 | 2008-05-07 | 中国石油天然气集团公司 | Rotatable hydraulic expanding type tail pipe hanger |
| CN101575951A (en) * | 2008-05-05 | 2009-11-11 | 上海管力卜石油设备有限公司 | Petroleum expansion pipe hanger and construction technology |
| CN101906946A (en) * | 2009-06-04 | 2010-12-08 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion-type rotary liner hanger |
| CN101598006A (en) * | 2009-07-17 | 2009-12-09 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | A kind of hydraulic buckling type tail pipe hanger |
| CN102953698A (en) * | 2011-08-23 | 2013-03-06 | 中国石油化工股份有限公司 | Expansion-type rotatable tail pipe hanger |
| CN202832323U (en) * | 2012-08-23 | 2013-03-27 | 中国石油天然气股份有限公司 | Locking type expansion drilling liner hanger |
| CN203729925U (en) * | 2014-01-03 | 2014-07-23 | 中国石油天然气股份有限公司 | Expansion type liner hanger allowing well cementation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103790533A (en) | 2014-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103790533B (en) | Can cement the well buckling type tail pipe hanger | |
| CN203374238U (en) | Integrated dust squeezing bridge plug capable of being taken out | |
| CN104213861B (en) | A kind of expansion tube expanding process and tool system | |
| CN204252969U (en) | Sand control pipe and flow string | |
| CN110295869B (en) | Expansion liner tube for repeated fracturing and repeated fracturing method | |
| CN103850663A (en) | Extractable type integrated setting and ash-extruding bridge plug | |
| CN203285384U (en) | Top packer for preventing sand | |
| CN104265234B (en) | Constant pressure stepped-depacking packer | |
| CN102966327A (en) | Expansion pipe | |
| WO2017071517A1 (en) | Apparatus and method for establishing oil well in-well sand control pipe particle flow channel | |
| CN202266231U (en) | Auxiliary pressure-bearing device for rubber barrel of self-expansion packer | |
| CN103758476B (en) | Non-well cementation buckling type tail pipe hanger | |
| CN203729925U (en) | Expansion type liner hanger allowing well cementation | |
| CN206530312U (en) | A kind of inflatable packer | |
| CN104929562A (en) | Packer | |
| CN203022686U (en) | Removable bridge plug | |
| CN203729924U (en) | Non-well-cementation expansion type drilling liner hanger | |
| CN216406749U (en) | Hanger fracturing tieback instrument | |
| CN105089554A (en) | Oil field horizontal well under-pressure dragging fracturing modification operation valve and reverse well-flushing unfreezing method | |
| CN204716188U (en) | Handling seat sealed type two group sealing machine packer | |
| CN203547655U (en) | Well cementing split rubber plug device of composite casing pipe | |
| CN107503708B (en) | Wire seal packing device | |
| CN102296939B (en) | Automatic pressure-balancing expansion-catch integrated expandable tube tool and use method thereof | |
| CN107503709B (en) | Well cementation device of thin interlayer adjusting well | |
| CN201857928U (en) | Hydraulic expanding packer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |