CN2373556Y - Hydraulic well completion tubular column suspension device - Google Patents
Hydraulic well completion tubular column suspension device Download PDFInfo
- Publication number
- CN2373556Y CN2373556Y CN 98239541 CN98239541U CN2373556Y CN 2373556 Y CN2373556 Y CN 2373556Y CN 98239541 CN98239541 CN 98239541 CN 98239541 U CN98239541 U CN 98239541U CN 2373556 Y CN2373556 Y CN 2373556Y
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- CN
- China
- Prior art keywords
- completion tubular
- tubular column
- well
- connector
- ball seat
- 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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Abstract
The utility model relates to a hydraulic and well-completion tubular-column suspension device which is a tool used in the well completion function of an oil (water) well. The function of the utility model is that a well completion tubular column is arranged completely and easily at a designed position, and the suspension and the back-off are conducted exactly and reliably. The hydraulic and well-completion tubular-column suspension device is composed of a lower joint 1, a lock block 2, a ball seat pin 3, a ball seat 4, a base tube 5, a joint 6, a steel ball 7, a hollow rubber plug 8, a piston 9, a slip 10, a cone 11, an upper joint 12, an upper rubber plug 13, etc. The device can display obviously two processes of the suspension and the back-off, can respectively check the reliability of the suspension and the back-off, and is a well-completion tubular-column suspension device with high safety and reliability and high efficiency.
Description
The utility model relates to the completion tubular column suspension arrangement that uses in the completion practice of a kind of oil (water) well, belongs to the downhole tool class.
The sidetracked hole construction in well and the well workover finished in advance in the drilling well time all requires completion tubular column down to design attitude, and the precalculated position in the sleeve pipe of upper strata hangs, gives up, and at last again according to the well-completing process needs, whether decision carries out the cementing well operation.The completion tubular column suspension arrangement that uses in the prior art is generally mechanical type, waterpower formula or a mechanical waterpower formula suspension arrangement.Above-mentioned these device ubiquities complicated operation, occur misoperation easily, and safety and reliability aspect problems such as not having obviously demonstration hang, give up.
The purpose of this utility model is the problem that exists in the existing completion tubular column suspension arrangement, provide a kind of simple to operate, hang reliable, give up obviously the fluid pressure type completion tubular column suspension arrangement that can carry out the cementing well operation on demand.
The purpose of this utility model is to realize by following technical scheme: design hydraulic suspension part and the hydraulic pressure part of giving up in suspension arrangement, hang and give up two and move segmentation and carry out, adopt bigger pressure stage difference not cut off and hang the pin and the pin of giving up, to distinguish two actions, after giving up, circulation canal can be recovered, normal cementing well operation can be carried out.Its concrete structure is: the top of device is top connection, and send into tubing string and link to each other, and be that lower contact links to each other with completion tubular column bottom.Link connector below the top connection, fixing ball seat and hollow plug etc. with pin and lock dog on the connector.Linking parent tube above the lower contact, piston, slips and cone etc. are being installed on the parent tube.When this device was gone into the well, top connection linked together with lower contact by connector and lock dog etc., hung, gave up and during cementing, also will cooperate and drop into steel ball and drop into top cement plug.
The suspension of fluid pressure type completion tubular column suspension arrangement of the present utility model and the operating process of giving up, pressurization is finished by the ground turn on pump.Because when device was gone into the well, the fluid power of suspended portion pressurization hole was sealed by hollow plug, avoided of the influence of the interior surge pressure of well to the part of surging, can not produce the part malfunction of surging.When hanging and give up, segmentation adopts two differential differentiations of bigger pressure to finish two processes, can clearly show two processes again on the ground, and can adopt the suspending weight method further to verify to hang and give up.When needing cementing well, top cement plug and hollow plug are used, and also can guarantee not stay in the tail pipe unnecessary cement plug.
Fluid pressure type completion tubular column suspension arrangement of the present utility model compared with prior art has following advantage and effect:
1, this device can guarantee completion tubular column successfully down to design attitude, and it is reliable to guarantee to hang, give up;
2, carry out the cementing well operation after giving up, the situation of avoiding can not giving up behind the cementing well takes place.
1 given embodiment is further described the utility model below in conjunction with accompanying drawing.
Fluid pressure type completion tubular column suspension arrangement among the embodiment is made up of lower contact 1, lock dog 2, ball seat pin 3, ball seat 4, parent tube 5, connector 6, steel ball 7, hollow plug 8, piston 9, slips 10, cone 11, top connection 12 and top cement plug 13 etc.
The lower contact 1 of this completion tubular column suspension arrangement links to each other with completion tubular column, top connection 12 with send into tubing string and join.When this suspension arrangement is gone into the well, its hollow plug 8 will be positioned at the fluid power pressurization hole sealing on parent tube 5 and the connector 6, thereby surge pressure can not exert an influence to hydraulic cavities in the well that is caused by the running speed variation, thereby also can not make slips 10 produce misoperation, thereby guaranteed going into the well smoothly of completion tubular column.
When under the drilling tool behind design attitude, steel ball 7 is dropped into by sending in the tubing string, and seat is on ball seat 4, and after turn on pump was sprained and pressed, hollow plug 8 was descending, expose the hydraulic pressurization hole, under hydraulic action, piston 9 up promotion slips 10 actions realize the suspension of completion tubular column, at this moment can pressurize by drill string, verify the reliability that completion tubular column hangs; After completion tubular column hangs, continue to improve pump pressure, cut off ball seat pin 3, ball seat 4 pressurizeds are descending, lock dog 2 skids off, and tubing string is sent in realization and the completion tubular column disengagement is given up, and at this moment also can observe the method that the weight indicator suspending weight changes by movable drilling tool, verify whether giving up of completion tubular column, guarantee that completion tubular column hangs and the reliability of giving up.
Because do not have mechanical the connection between hollow plug 8 and the ball seat 4, both can recover circulation canal after separating under hydraulic action.If when needing cementing well, can then inject cement paste and top cement plug 13; During for mud, together descending in the hollow plug 8 of top cement plug 13 arrival, the cement paste in the completion tubular column is all replaced into annular space, finish well cementing operation.
Claims (3)
1, the fluid pressure type completion tubular column suspension arrangement that uses in the completion practice of a kind of oil (water) well, by the hydraulic suspension part, hydraulic pressure is given up partly and is last, compositions such as lower contact, it is characterized in that: suspended portion comprises the hollow plug (8) that places connector (6) inner chamber, seat is also used the piston (9) of dowel fixes below hollow plug (8), the slips (10) that links to each other with the tooth embedding with piston (9), and be connected parent tube (5) go up can swelling slips (10) cone (11) etc., the hydraulic pressure part of giving up comprises the ball seat (4) that is installed in that connector (6) is gone up and locks with ball seat pin (3), by the lock dog (2) of ball seat (4) and connector (6) location etc., steel ball (7) feeding device inner chamber when work builds the pressure, and seat is on ball seat (4).
2, fluid pressure type completion tubular column suspension arrangement according to claim 1 is characterized in that: the exert pressure hole of this device is dropped into and is opened after steel ball (7) and turn on pump build the pressure by the sealings such as (8) of hollow plug.
3, fluid pressure type completion tubular column suspension arrangement according to claim 2, it is characterized in that: the top connection (12) topmost of this device with send into tubing string and link to each other, lower contact bottom (1) links to each other with completion tubular column, top connection (12) is following with the connector that is threaded (6), connector (6) is gone up and is being fixed ball seat (4) and hollow plug (8) with pin (3) and lock dog (2), connecting parent tube (5) above the lower contact (1), piston (9) is installed on the parent tube (5), slips (10) and cone (11) etc., top connection (12) links together by connector (6) and lock dog (2) and lower contact (1), and steel ball (7) drops into when building the pressure also on ball seat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239541 CN2373556Y (en) | 1998-12-01 | 1998-12-01 | Hydraulic well completion tubular column suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239541 CN2373556Y (en) | 1998-12-01 | 1998-12-01 | Hydraulic well completion tubular column suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373556Y true CN2373556Y (en) | 2000-04-12 |
Family
ID=33986896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98239541 Expired - Fee Related CN2373556Y (en) | 1998-12-01 | 1998-12-01 | Hydraulic well completion tubular column suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373556Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536160A (en) * | 2010-12-24 | 2012-07-04 | 中国石油化工股份有限公司 | Ball seat type rubber plug system for liner cementing |
-
1998
- 1998-12-01 CN CN 98239541 patent/CN2373556Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536160A (en) * | 2010-12-24 | 2012-07-04 | 中国石油化工股份有限公司 | Ball seat type rubber plug system for liner cementing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |