CN212898424U - Novel circulating valve easy to drill - Google Patents
Novel circulating valve easy to drill Download PDFInfo
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- CN212898424U CN212898424U CN202021273495.2U CN202021273495U CN212898424U CN 212898424 U CN212898424 U CN 212898424U CN 202021273495 U CN202021273495 U CN 202021273495U CN 212898424 U CN212898424 U CN 212898424U
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Abstract
The utility model provides a novel circulating valve easily bores mainly relates to well drilling well cementation technical field. The utility model provides a novel circulating valve easily bores, includes barrel and seat and seals the ball, the barrel upper end is equipped with the top connection, barrel and top connection threaded connection, the barrel endotheca is equipped with and closes the cover, be equipped with between barrel and the closure cover and prevent changeing guide screw, it is equipped with and closes the seat to close the cover upper end, close the seat and close cover threaded connection, it is equipped with spacing rubber and fixed cover in the closure cover. The beneficial effects of the utility model reside in that: the utility model has reasonable structure design, stable opening pressure of the circulation hole and stable closing pressure of the circulation hole; after the circulation hole is closed, the seat sealing ball is fixed on the closing seat by the limiting rubber, tools on the upper portion in the pipe column can be started when pressurization is conducted, in addition, all accessories are provided with anti-rotation functions, and when the plug is drilled in the later stage, the drilling and removing time can be saved, and the production cost is saved.
Description
Technical Field
The utility model mainly relates to a well drilling well cementation technical field specifically is a novel circulating valve easily drills.
Background
The construction operation of lowering a casing into a well and injecting cement into an annular space between the well and the casing is called well cementation, the well cementation is important operation in a well drilling process, at least two times of well cementation are generally carried out in the well drilling operation, up to 4-5 times of well cementation are carried out, the uppermost well cementation is surface casing well cementation and plays the roles of a slurry passage and an oil gas door, and a blowout preventer is arranged on the surface casing to prevent well blowout before next drilling.
The circulating valve is a common circulating flow control tool, the conventional well cementation valve of the existing circulating valve only has the circulating and closing functions, is communicated with a lower pipe column after being closed, has long drilling and plugging time and low drilling and plugging efficiency, and brings inconvenience to well drilling and cementing.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a novel easy-drilling circulating valve, which has reasonable structural design, stable opening pressure of the circulating hole and stable closing pressure of the circulating hole; after the circulation hole is closed, the seat sealing ball is fixed on the closing seat by the limiting rubber, tools on the upper portion in the pipe column can be started when pressurization is conducted, in addition, all accessories are provided with anti-rotation functions, and when the plug is drilled in the later stage, the drilling and removing time can be saved, and the production cost is saved.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
the utility model provides a novel circulating valve easily bores, includes barrel and seat and seals the ball, the barrel upper end is equipped with the top connection, barrel and top connection threaded connection, the barrel endotheca is equipped with and closes the cover, be equipped with between barrel and the closure cover and prevent changeing guide screw, it is equipped with and closes the seat to close the cover upper end, close the seat and close cover threaded connection, it is equipped with spacing rubber and fixed cover in the closure cover, fixed cover is fixed spacing rubber in closing the seat through threaded connection, close cover lower extreme suit and open cover, piston and lock nut, the piston passes through shear pin and lock nut fixed connection, the barrel lower extreme is equipped with the lower clutch, lower clutch and barrel threaded connection.
Furthermore, taper threads are formed at the upper end of the upper joint.
Furthermore, a positioning snap spring is arranged between the cylinder body and the closing sleeve.
Furthermore, an overflowing pressure transfer hole is formed in the locking nut.
Furthermore, the lower end of the lower connector is provided with taper threads.
Contrast prior art, the beneficial effects of the utility model are that:
the utility model has reasonable structure design, stable opening pressure of the circulation hole and stable closing pressure of the circulation hole; after the circulation hole is closed, the seat sealing ball is fixed on the closing seat by the limiting rubber, tools on the upper portion in the pipe column can be started when pressurization is conducted, in addition, all accessories are provided with anti-rotation functions, and when the plug is drilled in the later stage, the drilling and removing time can be saved, and the production cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numerals shown in the drawings: 1. an upper joint; 2. a barrel; 3. closing the seat; 4. fixing a sleeve; 5. a limiting rubber; 6. positioning a clamp spring; 7. closing the sleeve; 8. opening the sleeve; 9. an anti-rotation guide screw; 10. a piston; 11. shearing the nails; 12. locking the nut; 13. a lower joint; 14. and (5) seating and sealing the ball.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
As shown in fig. 1, a novel circulating valve easily bores, including barrel 2 and seat ball 14, barrel 2 upper end is equipped with top connection 1, barrel 2 and 1 threaded connection of top connection, 2 endotheca of barrel are equipped with and close cover 7, barrel 2 and close and be equipped with between cover 7 and prevent changeing guide screw 9, it is equipped with and closes seat 3 to close 7 upper ends of cover, close seat 3 and close 7 threaded connection of cover, it is equipped with spacing rubber 5 and fixed cover 4 in the cover 3 to close, fixed cover 4 fixes spacing rubber 5 in closing seat 3 through threaded connection, close 7 lower extreme suits of cover and open cover 8, piston 10 and lock nut 12, piston 10 is through shear pin 11 and lock nut 12 fixed connection, 2 lower extremes of barrel are equipped with bottom end connection 13, bottom end connection 13 and 2 threaded connection of barrel.
Specifically, the upper end of the upper joint 1 is provided with taper threads. The upper end of the upper joint 1 is provided with taper threads, so that the upper joint 1 and the construction sleeve can be conveniently connected in a pipe string.
Specifically, a positioning clamp spring 6 is arranged between the cylinder body 2 and the closing sleeve 7. The positioning clamp spring 6 can position the barrel 2 and the closing sleeve 7, so that the installation accuracy of the barrel 2 and the closing sleeve 7 is guaranteed.
Specifically, the lock nut 12 is provided with an overcurrent pressure transmission hole. The excess flow transfer port is capable of transferring pressure to the piston 10.
Specifically, the lower end of the lower joint 13 is provided with taper threads. Taper threads are formed at the lower end of the lower connector 13, so that the lower frame head 13 and the construction casing can be conveniently connected in a pipe string.
Example (b):
when the device is used, firstly, a sleeve is put in, a circulating valve is connected at the design position of a pipe string, the sleeve, the circulating valve and other matched tools are put in place, construction is carried out according to the design requirements, a wellhead is pressurized, pressure is suppressed in the pipe, the pressure is transmitted to a piston through a through hole of a locking nut, a shear pin of the piston is sheared through pressurization, the piston moves upwards, the circulating hole is exposed, and circulating flushing operation is carried out through the circulating hole; after the circulation is normal, throwing a seat sealing ball to the closing seat, pressurizing to push the closing seat and the closing sleeve to descend together, closing the circulation hole, descending the clamp spring to just expand and position in the clamp spring groove at the lower part of the cylinder body, continuously pressurizing to start the upper tool, then unloading the manifold, and putting a tubular column drill plug; the utility model has reasonable structure design, stable opening pressure of the circulation hole and stable closing pressure of the circulation hole; after the circulation hole is closed, the seat sealing ball is fixed on the closing seat by the limiting rubber, tools on the upper portion in the pipe column can be started when pressurization is conducted, in addition, all accessories are provided with anti-rotation functions, and when the plug is drilled in the later stage, the drilling and removing time can be saved, and the production cost is saved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a novel easy brill circulating valve, includes barrel (2) and seat and seals ball (14), its characterized in that: the utility model discloses a novel sealing device, including barrel (2), barrel (2) upper end is equipped with top connection (1), barrel (2) and top connection (1) threaded connection, barrel (2) endotheca is equipped with and closes cover (7), be equipped with between barrel (2) and the cover of closing (7) and prevent changeing guide screw (9), it is equipped with and closes seat (3) to close cover (7) upper end, close seat (3) and close cover (7) threaded connection, be equipped with spacing rubber (5) and fixed cover (4) in closing seat (3), fixed cover (4) are fixed spacing rubber (5) in closing seat (3) through threaded connection, cover (8), piston (10) and lock nut (12) are opened to the suit of cover (7) lower extreme suit, piston (10) are through shear pin (11) and lock nut (12) fixed connection, barrel (2) lower extreme is equipped with lower clutch (13), the lower joint (13) is in threaded connection with the cylinder body (2).
2. A novel easy-to-drill circulation valve according to claim 1, wherein: the upper end of the upper joint (1) is provided with taper threads.
3. A novel easy-to-drill circulation valve according to claim 1, wherein: and a positioning snap spring (6) is arranged between the barrel (2) and the closing sleeve (7).
4. A novel easy-to-drill circulation valve according to claim 1, wherein: and an overcurrent pressure transmission hole is formed in the locking nut (12).
5. A novel easy-to-drill circulation valve according to claim 1, wherein: the lower end of the lower joint (13) is provided with taper threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273495.2U CN212898424U (en) | 2020-07-02 | 2020-07-02 | Novel circulating valve easy to drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273495.2U CN212898424U (en) | 2020-07-02 | 2020-07-02 | Novel circulating valve easy to drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898424U true CN212898424U (en) | 2021-04-06 |
Family
ID=75281765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021273495.2U Active CN212898424U (en) | 2020-07-02 | 2020-07-02 | Novel circulating valve easy to drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898424U (en) |
-
2020
- 2020-07-02 CN CN202021273495.2U patent/CN212898424U/en active Active
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