CN201144665Y - High-pressure pipe joint union backing pin type cement head - Google Patents
High-pressure pipe joint union backing pin type cement head Download PDFInfo
- Publication number
- CN201144665Y CN201144665Y CNU2007201584918U CN200720158491U CN201144665Y CN 201144665 Y CN201144665 Y CN 201144665Y CN U2007201584918 U CNU2007201584918 U CN U2007201584918U CN 200720158491 U CN200720158491 U CN 200720158491U CN 201144665 Y CN201144665 Y CN 201144665Y
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- union
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- cementing
- cementing head
- backing pin
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Abstract
The utility model relates to a high-pressure manifold union pumper pin type cementing head, which consists of a lifting chain, a cementing-head cover, a packing seal, a cementing-head body, upper and lower union female heads, a pumper pin assembly, an indicator, a sealing ring and a lower contact. The cementing-head is designed into a cylinder; the upper end of the cylinder is provided with a T-shaped male thread connected with the cementing-head cover by threads; and the lower end of the cylinder is provided with a T-shaped female thread connected with the lower contact by threads. The upper union female head which is connected with a cement injection pipe is arranged under the front of the upper T-shaped male thread; and the lower union female head which is symmetrically connected with the cement injection pipe is arranged above the front of the lower T-shaped female thread. The damper pin assembly which is vertically inserted in the cementing head body is arranged on the right side of the mid-lower part of the cementing head body. The indicator and the hiding groove of an indicator touch block are arranged on the cementing head between the lower union female head and the damper pin assembly. The cementing head cover is connected with the T-shaped male thread of the cementing head body; the packing seal is pressed on the upper end surface of the cementing head body; and the lower contact is connected with the T-shaped female thread of the cementing head body. The cementing head provided by the utility model solves the problem of injecting cement and placing rubber stoppers and improves the quality of well cementation.
Description
One, technical field
The utility model relates to throws in a kind of high pressure pipe joint union backing pin type cementing head that plug replacement cement paste is used in the drilling completion process.
Two, background technology
In oil drilling completion well cementation process, notes return cement paste all needs a high pressure pipe joint that grouting equipment is connected one with storage slurry equipment with well head on ground, and existing high pressure pipe joint does not possess the function of throwing in plug, the well cementation requirement of incompatibility ultradeep well.Ultradeep well needs cement slurry volume big, the grouting pressure height, for saving cement slurry volume, need to throw in plug water moulding plug, cement paste in the sleeve pipe is replaced among the slit of returning between sleeve pipe and the stratum, reach the purpose of not only saving mud but also can improve cementing quality,, need a kind of high pressure pipe joint that can throw in plug of development for reaching the purpose of throwing in plug.
Three, summary of the invention
The purpose of this utility model provides a kind of high pressure pipe joint union backing pin type cementing head, solves above-mentioned prior art and can not throw in the problem that replaces the cement paste plug.
The technical solution of the utility model realizes in the following manner:
The utility model is by chain sling, the cementing head lid, sealing mat, body, union female up and down, the backing pin assembly, indicator, sealing ring and lower contact are formed, it is cylindrical to it is characterized in that body is made as, the upper end is provided with the T type male thread that is threaded with the cementing head lid, be provided with the T type box thread that is threaded with lower contact in the bottom, front side below the last T type male thread be provided be connected with the cement injection pipeline on the union female, be provided with symmetry in front side above the following T type box thread with union female under the cement injection pipeline is connected, be provided with the backing pin assembly of laterally vertically going into body on the right side, middle and lower part of body, on the body between following union female and the backing pin assembly, be provided with the hiding groove that indicator and indicator touch piece, the cementing head lid is connected with the T type male thread of body, the body upper surface is pressed with sealing mat, and lower contact is connected with the T type box thread of body.
The cementing head lid is made as cylindrical, and at the T type of establishing in the interior week box thread of cylinder, the center is provided with plug depression bar vertically downward below top on the cylinder, and all sides are provided with hanger above cylinder, are connected with chain sling on the hanger.
The backing pin assembly is made up of handwheel, leading screw, nut, leading screw rotary body, rotary body seat and union box cupling, the leading screw upper end is provided with handwheel, and by fixed by nut, the middle and upper part of leading screw is provided with T type male thread, cooperate with the T type box thread of leading screw rotary body, the center of body is inserted in the leading screw bottom; The leading screw rotary body is made as cylindrical, is provided with T type box thread interior week, is provided with the union female in the bottom, is with the union box cupling on the union female; The rotary body seat is provided with the union male, and the middle and upper part periphery is provided with the T type box thread that is threaded with the union box cupling, the vertical one of welding with body in lower end.
Lower contact is made as the pipe nipple type, and top is provided with the T type male thread that is connected with body T type box thread, establishes the O RunddichtringO above T type male thread, and the bottom is provided with the box thread that is connected with sleeve pipe.
Indicator is formed by touching piece, rotating shaft, spring, sealing ring and indication handle, the inner of rotating shaft is welded with oblique touch piece, touching the hiding groove of touch piece set on piece and the body cooperates, the hole of body band O RunddichtringO is passed in rotating shaft, the rotating shaft outer end is provided with by the fixing indication handle of fixed screw, is provided with spring between body and indication handle.
The utility model has solved the problem of annotating cementing slurry and throwing in plug, has saved cementing concrete for the ultradeep well well cementation, has improved cementing quality, for good condition has been created in the ultradeep well well cementation.
Four, description of drawings
Accompanying drawing is a structural representation of the present utility model.
1-chain sling 2-cementing head lid 3-sealing mat 4-body 5,8-union female 6-backing pin assembly 7-indicator 9-O RunddichtringO 10-lower contact among the figure
Five, the specific embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model is by chain sling, the cementing head lid, sealing mat, body, union female up and down, the backing pin assembly, indicator, sealing ring and lower contact are formed, it is cylindrical to it is characterized in that body is made as, the upper end is provided with the T type male thread that is threaded with the cementing head lid, be provided with the T type box thread that is threaded with lower contact in the bottom, front side below the last T type male thread be provided be connected with the cement injection pipeline on the union female, be provided with symmetry in front side above the following T type box thread with union female under the cement injection pipeline is connected, be provided with the backing pin assembly of laterally vertically going into body on the right side, middle and lower part of body, on the body between following union female and the backing pin assembly, be provided with the hiding groove that indicator and indicator touch piece, the cementing head lid is connected with the T type male thread of body, the body upper surface is pressed with sealing mat, and lower contact is connected with the T type box thread of body.
When well cementation, at first hang chain sling 1 on the cementing head lid 2 high pressure pipe joint union backing pin type cementing head of slinging with the suspension hook of hanging device, be connected one with O RunddichtringO 9 with sleeve pipe by lower contact 10, the pressure duct of grouting equipment is by the female in the ninth of the ten Heavenly Stems of oil up and down 5 on union and the body 4,8 connect one, the beginning cement injection, in the cement injection process, can inject the flow of cement paste with the control valve control in the oil female connecting line in the ninth of the ten Heavenly Stems up and down according to strata condition, changeable, return before height do not reach design height at cement, stop cement injection, open cement skull, knock down plug, put the sealing mat 3 cementing head lid 2 of screwing at the body upper top, with depression bar on cement skull and backing pin assembly 6 that plug is temporarily spacing, open the control valve on the union female connecting line, the beginning water filling, open backing pin assembly 6 when having waited to press, plug begins descending when the indicator, angle of indicator handle rotation, the proof plug enters sleeve pipe by indicator 7 and lower contact 10, plug is pressed onto the position that float collar or float shoe are installed on the sleeve pipe with water under high pressure sets always, when treating that water injection pressure does not descend, illustrate that the cement paste in the sleeve pipe all returns in the slit between sleeve pipe and the stratum, reach the well cementation height of design.
Claims (5)
1, a kind of high pressure pipe joint union backing pin type cementing head, by chain sling, the cementing head lid, sealing mat, body, union female up and down, the backing pin assembly, indicator, sealing ring and lower contact are formed, it is cylindrical to it is characterized in that body is made as, the upper end is provided with the T type male thread that is threaded with the cementing head lid, be provided with the T type box thread that is threaded with lower contact in the bottom, front side below the last T type male thread be provided be connected with the cement injection pipeline on the union female, be provided with symmetry in front side above the following T type box thread with union female under the cement injection pipeline is connected, be provided with the backing pin assembly of laterally vertically going into body on the right side, middle and lower part of body, on the body between following union female and the backing pin assembly, be provided with the hiding groove that indicator and indicator touch piece, the cementing head lid is connected with the T type male thread of body, the body upper surface is pressed with sealing mat, and lower contact is connected with the T type box thread of body.
2, high pressure pipe joint union backing pin type cementing head according to claim 1, it is cylindrical to it is characterized in that the cementing head lid is made as, the T type of establishing in interior week box thread at cylinder, the center is provided with plug depression bar vertically downward below top on the cylinder, all sides are provided with hanger above cylinder, are connected with chain sling on the hanger.
3, high pressure pipe joint union backing pin type cementing head according to claim 1, it is characterized in that the backing pin assembly is made up of handwheel, leading screw, nut, leading screw rotary body, rotary body seat and union box cupling, the leading screw upper end is provided with handwheel, by fixed by nut, the middle and upper part of leading screw is provided with T type male thread, cooperate with the T type box thread of leading screw rotary body, the center of body is inserted in the leading screw bottom; The leading screw rotary body is made as cylindrical, is provided with T type box thread interior week, is provided with the union female in the bottom, is with the union box cupling on the union female; The rotary body seat is provided with the union male, and the middle and upper part periphery is provided with the T type box thread that is threaded with the union box cupling, the vertical one of welding with body in lower end.
4, high pressure pipe joint union backing pin type cementing head according to claim 1, it is characterized in that lower contact is made as the pipe nipple type, top is provided with the T type male thread that is connected with body T type box thread, establishes the O RunddichtringO above T type male thread, and the bottom is provided with the box thread that is connected with sleeve pipe.
5, high pressure pipe joint union backing pin type cementing head according to claim 1, it is characterized in that indicator forms by touching piece, rotating shaft, spring, sealing ring and indication handle, the inner of rotating shaft is welded with oblique touch piece, touching the hiding groove of touch piece set on piece and the body cooperates, the hole of body band O RunddichtringO is passed in rotating shaft, the rotating shaft outer end is provided with by the fixing indication handle of fixed screw, is provided with spring between body and indication handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201584918U CN201144665Y (en) | 2007-12-16 | 2007-12-16 | High-pressure pipe joint union backing pin type cement head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201584918U CN201144665Y (en) | 2007-12-16 | 2007-12-16 | High-pressure pipe joint union backing pin type cement head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144665Y true CN201144665Y (en) | 2008-11-05 |
Family
ID=40081541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201584918U Expired - Fee Related CN201144665Y (en) | 2007-12-16 | 2007-12-16 | High-pressure pipe joint union backing pin type cement head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144665Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134990A (en) * | 2011-02-25 | 2011-07-27 | 中国石油集团川庆钻探工程有限公司 | Cement head magnetic induction rubber plug indicator |
| CN103748315A (en) * | 2011-05-17 | 2014-04-23 | 克雷麦克控股有限公司 | Cement head with hammer union |
| CN105317395A (en) * | 2014-07-07 | 2016-02-10 | 中国石油化工股份有限公司 | Rotary cement head |
| CN111155964A (en) * | 2020-03-10 | 2020-05-15 | 何华 | A exempt from to bore stopper cementing ware for oil development |
| CN112253043A (en) * | 2020-12-09 | 2021-01-22 | 中国石油天然气集团有限公司 | High-pressure well cementing cement head |
-
2007
- 2007-12-16 CN CNU2007201584918U patent/CN201144665Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134990A (en) * | 2011-02-25 | 2011-07-27 | 中国石油集团川庆钻探工程有限公司 | Cement head magnetic induction rubber plug indicator |
| CN102134990B (en) * | 2011-02-25 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司 | Cement head magnetic induction rubber plug indicator |
| CN103748315A (en) * | 2011-05-17 | 2014-04-23 | 克雷麦克控股有限公司 | Cement head with hammer union |
| CN105317395A (en) * | 2014-07-07 | 2016-02-10 | 中国石油化工股份有限公司 | Rotary cement head |
| CN105317395B (en) * | 2014-07-07 | 2019-01-01 | 中国石油化工股份有限公司 | A kind of rotary cement head |
| CN111155964A (en) * | 2020-03-10 | 2020-05-15 | 何华 | A exempt from to bore stopper cementing ware for oil development |
| CN112253043A (en) * | 2020-12-09 | 2021-01-22 | 中国石油天然气集团有限公司 | High-pressure well cementing cement head |
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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: 20081105 Termination date: 20111216 |