CN201310321Y - Drilling-free cementing stage collar - Google Patents
Drilling-free cementing stage collar Download PDFInfo
- Publication number
- CN201310321Y CN201310321Y CNU2008202325493U CN200820232549U CN201310321Y CN 201310321 Y CN201310321 Y CN 201310321Y CN U2008202325493 U CNU2008202325493 U CN U2008202325493U CN 200820232549 U CN200820232549 U CN 200820232549U CN 201310321 Y CN201310321 Y CN 201310321Y
- Authority
- CN
- China
- Prior art keywords
- piston
- exempting
- adapter sleeve
- sizing collar
- cementing
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A drilling-free cementing stage collar comprises a main body and a closure mechanism. The main body comprises an upper joint, a connection sleeve and a lower joint both sequentially connected with the upper joint, and a piston mounted in the connection sleeve. The drilling-free cementing stage collar is characterized by simple structure, easy manufacture, convenient operation, safe reliability, high cementing quality and construction efficiency, which is widely applied to petroleum cementing equipment.
Description
One, technical field
The utility model relates to the well drilling and cementing instrument, particularly a kind of brill plug cementing sizing collar of exempting from.
Two, background technology
China Patent No. 200620081413.8 discloses a kind of plug cementing sizing collar of exempting to bore, its structure by overcoat, plug cover, outer bell and spigot joint, close cover, open the cover and ball seat constitute, its objective is and implement to exempt to bore the plug stage cementing, but there is following shortcoming or deficiency: 1. complex structure, the processing and manufacturing trouble, the cost height; 2. can not in slim-hole, use; 3. sizing collar is descending opening, reliability, poor stability.
Three, summary of the invention
The purpose of this utility model provides a kind of improved plug cementing sizing collar of exempting to bore, and adopts the structure of hydraulic open, mechanical closing, both can open or close sizing collar effectively, safely and reliably, can overcome the shortcoming or the deficiency that exist in the above-mentioned prior art again.
The brill plug cementing sizing collar of exempting from described in the utility model comprises body and closing organ.Described body comprise top connection and on the adapter sleeve, the lower contact that connect in turn and be installed on piston in the adapter sleeve.
Wherein, described piston fixes by shear pin and adapter sleeve.Described adapter sleeve is provided with the circulation port that is communicated with piston cavity.Described piston middle part is provided with an inner groove, and the bottom is provided with the circulation canal that is connected with the adapter sleeve circulation port.Described piston lower end is provided with the anti-pawl that prevents piston stroking upward of distinguish.Described lower contact upper end is provided with the anti-pawl that matches with the anti-pawl of piston.Described piston middle part is provided with an outer step.Described adapter sleeve is provided with step in, and this step matches with the outer step at piston middle part.
The utility model has following advantage compared with prior art:
1, closes or open sizing collar and adopt parts, simplify the structure, reduced the processing and manufacturing difficulty, reduced cost;
2, adopt uplink mode to open sizing collar, operate more convenient, more reliable and secure;
3, the scope of application is wide, both can be used for big hole, can be used for slim-hole again.
Four, description of drawings
Accompanying drawing is a kind of structural representation of the present utility model
Five, the specific embodiment
The brill plug cementing sizing collar of exempting from described in the utility model comprises body and closing organ.Body comprise top connection 1 and on the adapter sleeve 2, the lower contact 7 that connect in turn and be installed on piston 4 in the adapter sleeve 2.
Wherein, piston 4 fixes by shear pin 6 and adapter sleeve 2.Adapter sleeve 2 is provided with the circulation port 5 that is communicated with piston 4 inner chambers.Piston 4 middle parts are provided with an inner groove, and top is provided with the circulation canal that is connected with adapter sleeve 2 circulation ports 5.Piston 4 lower ends are provided with the anti-down toothing that prevents piston stroking upward of distinguish.Lower contact 7 upper ends are provided with the anti-pawl that matches with piston 4 anti-pawls.Piston 4 middle parts are provided with an outer step.Adapter sleeve 2 is provided with step in, and this step matches with the outer step at piston 4 middle parts.On top connection 1, adapter sleeve 2, the piston 4 seal 3 is installed.
Claims (8)
1, a kind ofly exempt to bore plug cementing sizing collar, comprise body and closing organ, it is characterized in that described body comprise top connection and on the adapter sleeve, the lower contact that connect in turn and be installed on piston in the adapter sleeve.
2, the brill plug cementing sizing collar of exempting from according to claim 1 is characterized in that described piston fixes by shear pin and adapter sleeve.
3, the brill plug cementing sizing collar of exempting from according to claim 1 is characterized in that described adapter sleeve is provided with the circulation port that is communicated with piston cavity.
4, the brill plug cementing sizing collar of exempting from according to claim 1 is characterized in that described piston middle part is provided with an inner groove, and the bottom is provided with the circulation canal that is connected with the adapter sleeve circulation port.
5, the brill plug cementing sizing collar of exempting from according to claim 4 is characterized in that described piston lower end is provided with the anti-pawl that prevents piston stroking upward of distinguish.
6, the brill plug cementing sizing collar of exempting from according to claim 1 is characterized in that described lower contact upper end is provided with the anti-pawl that matches with the anti-pawl of piston.
7, the brill plug cementing sizing collar of exempting from according to claim 5 is characterized in that described piston middle part is provided with an outer step.
8, the brill plug cementing sizing collar of exempting from according to claim 3 is characterized in that described adapter sleeve is provided with step in, and this step matches with the outer step at piston middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202325493U CN201310321Y (en) | 2008-12-17 | 2008-12-17 | Drilling-free cementing stage collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202325493U CN201310321Y (en) | 2008-12-17 | 2008-12-17 | Drilling-free cementing stage collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310321Y true CN201310321Y (en) | 2009-09-16 |
Family
ID=41107575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202325493U Expired - Fee Related CN201310321Y (en) | 2008-12-17 | 2008-12-17 | Drilling-free cementing stage collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310321Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725330B (en) * | 2009-11-03 | 2013-06-19 | 山东普瑞思德石油技术有限公司 | Drilling-and-plugging-free well fixing method and tool |
| CN104234658A (en) * | 2013-06-07 | 2014-12-24 | 中国石油化工股份有限公司 | Hydraulic type drilling-free grading cementing device |
-
2008
- 2008-12-17 CN CNU2008202325493U patent/CN201310321Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725330B (en) * | 2009-11-03 | 2013-06-19 | 山东普瑞思德石油技术有限公司 | Drilling-and-plugging-free well fixing method and tool |
| CN104234658A (en) * | 2013-06-07 | 2014-12-24 | 中国石油化工股份有限公司 | Hydraulic type drilling-free grading cementing device |
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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: 20090916 Termination date: 20100118 |