CN201695985U - Wellhead packer used in cement slurry displacing efficiency analog device - Google Patents
Wellhead packer used in cement slurry displacing efficiency analog device Download PDFInfo
- Publication number
- CN201695985U CN201695985U CN2010202247326U CN201020224732U CN201695985U CN 201695985 U CN201695985 U CN 201695985U CN 2010202247326 U CN2010202247326 U CN 2010202247326U CN 201020224732 U CN201020224732 U CN 201020224732U CN 201695985 U CN201695985 U CN 201695985U
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- packer
- packing
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- rubber tile
- pad
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Abstract
The utility model relates to a wellhead packer used in a cement slurry displacing efficiency analog device, which mainly comprises a packer base plate surface, a packer lid plate, a gauze-holding packing rubber plate, a packing gasket, a flanged joint screw and a packing screw, wherein the packer base plate surface is concave inside, and the gauze-holding packing rubber plate is arranged therein; an opening is formed on the gauze-holding packing rubber plate for the sleeve of a well casing to penetrate; the packing gasket is arranged on the packing rubber plate; the packer lid plate is arranged on the packing gasket; the packing screw is arranged between the packing gasket and the packer lid plate; and the flanged joint screw is arranged between the packer base plate surface and the packer lid plate. Compared with the prior art, the utility model can realize true experimentation, pack the wellhead, and conveniently adjust the eccentricity of the sleeve in the well casing, and has the advantages of simple structure and convenient use.
Description
Affiliated technical field
The utility model relates to the well head packer that is used for the displacement efficiency of cement slurry analogue means in the petroleum works field, and this well head packer can packing mud and cement paste leaking and effectively adjust the eccentricity of sleeve pipe in experimental wwll cylinder in experimentation.
Background technology
At present, mud in the displacement efficiency of cement slurry analogue means of petroleum works and cement paste circulation is at home and abroad all adopted unidirectional, promptly injects mud from a direction in pit shaft, utilizes cement paste to replace the process of mud again from this direction then; What perhaps adopt is to adjust the eccentric angle of pipe in the pit shaft outer tube in the pit shaft, can produce certain limitation like this in experimentation, obviously has the following disadvantages:
(1) can not go out on-the-spot truth by real simulation in the experimentation.Be that cement paste injects from sleeve pipe at the scene in the well cementation process really, return out from the shaft bottom then, replace the mud between pit shaft and annular space.
(2) existing displacement efficiency simulated experiment can't be adjusted the eccentric angle of pipe in the pit shaft outer tube in the pit shaft in the well head packing, must prepare a lot of well head packers in the experimentation and experimentize, and wastes time and energy.
The utility model content
The purpose of this utility model is to provide a kind of well head packer that is used for the displacement efficiency of cement slurry analogue means, this well head packer can not only the packing well head, make cement paste according to from annular space, returning out truly in the scene, and can be adjusted at experiment under the different eccentricity situations easily, experiment is carried out smoothly.
For reaching above technical purpose, the utility model provides following technical scheme.
A kind of well head packer that is used for the displacement efficiency of cement slurry analogue means, mainly by packer chassis card, the packer shrouding disc, yarn clipping cloth packing rubber tile, the packing pad, the flange connecting screw, the packing screw is formed, card inside, described packer chassis is spill, wherein place yarn clipping cloth packing rubber tile, on yarn clipping cloth packing rubber tile, perforate is arranged, the sleeve pipe that is used for pit shaft therefrom passes through, the packing pad is arranged on the packing rubber tile, the packer shrouding disc is arranged on the packing pad, between packing pad and packer shrouding disc, the packing screw is arranged, between packer chassis card and packer shrouding disc, the flange connecting screw is arranged.
Packer of the present utility model chassis card is connected with the outer shaft wall of displacement efficiency of cement slurry analogue means, form an integral body, card inside, packer chassis is spill, wherein place yarn clipping cloth packing rubber tile, can effectively stop in displacement process, drilling fluid or cement paste flow out from pit shaft.Perforate on yarn clipping cloth packing rubber tile, the sleeve pipe that is used for pit shaft therefrom passes through, after adjusting the eccentricity of sleeve pipe in pit shaft, place the packing pad, make the packing pad push down yarn clipping cloth packing rubber tile, the packing pad can compress at yarn clipping cloth packing rubber tile edge, plays the packing effect, and the packer shrouding disc is arranged on the packing pad, be used to push down the packing pad, the packer shrouding disc has constant weight, plays the effect of compacting yarn clipping cloth packing rubber tile to a certain extent, makes overall structure more firm, use the packing screw to compress the packing pad by the packer shrouding disc, make the effective compacting yarn clipping of pad cloth packing rubber tile, seal up well head, prevent that liquid from overflowing from import.The flange connecting screw plays the effect that connects packer chassis card and packer shrouding disc.
When needs are adjusted the eccentric angle of sleeve pipe in pit shaft, unclamp the packing screw, take down packer shrouding disc and packing pad, adjust the distance of yarn clipping cloth packing rubber tile in card inside, reach eccentric purpose, put packing pad and packer shrouding disc then, can reuse after use packing screw compresses the packing pad.
Compared with prior art, the beneficial effects of the utility model are that this well head packer can reach the authenticity experiment purpose simultaneously, and well head is lived in packing, the eccentricity of convenient adjusting sleeve pipe in pit shaft, and simple in structure, easy to use.
Description of drawings
Fig. 1 is the longitudinal sectional view of the utility model well head packer.
Among the figure: 1. pit shaft outer tube, 2. pipe in the pit shaft, 3, packer chassis card, 4. packer shrouding disc, 5. yarn clipping cloth packing rubber tile, 6. packing pad, 7. flange connecting screw, 8. packing screw
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1.A kind of well head packer that is used for the displacement efficiency of cement slurry analogue means, mainly by packer chassis card 3, packer shrouding disc 4, yarn clipping cloth packing rubber tile 5, packing pad 6, flange connecting screw 7, packing screw 8 is formed, packer chassis card 3 is connected with the pit shaft urceolus 1 of displacement efficiency of cement slurry analogue means, form an integral body, card 3 inside in packer chassis are spill, place yarn clipping cloth packing rubber tile 5, perforate on yarn clipping cloth packing rubber tile 5, being used for pit shaft inner core 2 therefrom passes through, after adjusting the eccentricity of pit shaft inner core 2, place packing pad 6, make packing pad 6 push down yarn clipping cloth packing rubber tile 5, on packing pad 6, press packer shrouding disc 4, use packing screw 8 to compress envelope packing pad 6, make packing pad 6 effective compacting yarn clipping cloth packing rubber tiles 5, seal up well head, prevent that liquid from overflowing from import.Packer chassis card is connected by flange connecting screw 7 with the packer shrouding disc.
When pipe in the pit shaft is tested between two parties, place yarn clipping cloth packing rubber tile in the card of packer chassis, it is placed in the middle to adjust yarn clipping cloth packing rubber tile, on yarn clipping cloth packing rubber tile, put the packing pad, pad is effectively contacted with yarn clipping cloth packing rubber tile, put the packer shrouding disc on the packing pad, tighten the packing screw, compress the packing pad and can carry out the displacement efficiency of cement slurry simulated experiment.
Claims (1)
1. well head packer that is used for the displacement efficiency of cement slurry analogue means, mainly by packer chassis card (3), packer shrouding disc (4), yarn clipping cloth packing rubber tile (5), packing pad (6), flange connecting screw (7), packing screw (8) is formed, it is characterized in that, described packer chassis card (3) inside is spill, wherein place yarn clipping cloth packing rubber tile (5), on yarn clipping cloth packing rubber tile, perforate is arranged, packing pad (6) is arranged on the packing rubber tile, packer shrouding disc (4) is arranged on the packing pad, packing screw (8) is arranged between packing pad and packer shrouding disc, flange connecting screw (7) is arranged between packer chassis card and packer shrouding disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247326U CN201695985U (en) | 2010-06-12 | 2010-06-12 | Wellhead packer used in cement slurry displacing efficiency analog device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247326U CN201695985U (en) | 2010-06-12 | 2010-06-12 | Wellhead packer used in cement slurry displacing efficiency analog device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695985U true CN201695985U (en) | 2011-01-05 |
Family
ID=43397225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202247326U Expired - Fee Related CN201695985U (en) | 2010-06-12 | 2010-06-12 | Wellhead packer used in cement slurry displacing efficiency analog device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695985U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174397A (en) * | 2011-12-22 | 2013-06-26 | 中国石油化工股份有限公司 | Test device and test method of simulating well concentration cement slurry displacement efficiency |
| CN108590570A (en) * | 2018-03-14 | 2018-09-28 | 长江大学 | Evaluating cementing concrete starches the experimental rig and test method of replacement efficiency |
| CN110700789A (en) * | 2019-11-12 | 2020-01-17 | 宋宝玉 | Oil field packer |
-
2010
- 2010-06-12 CN CN2010202247326U patent/CN201695985U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174397A (en) * | 2011-12-22 | 2013-06-26 | 中国石油化工股份有限公司 | Test device and test method of simulating well concentration cement slurry displacement efficiency |
| CN108590570A (en) * | 2018-03-14 | 2018-09-28 | 长江大学 | Evaluating cementing concrete starches the experimental rig and test method of replacement efficiency |
| CN108590570B (en) * | 2018-03-14 | 2020-05-19 | 长江大学 | Test device and test method for evaluating displacement efficiency of well cementation cement slurry |
| CN110700789A (en) * | 2019-11-12 | 2020-01-17 | 宋宝玉 | Oil field packer |
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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: 20110105 Termination date: 20130612 |