CN210033360U - Anti-receding ball seat for setting ball - Google Patents
Anti-receding ball seat for setting ball Download PDFInfo
- Publication number
- CN210033360U CN210033360U CN201920615982.3U CN201920615982U CN210033360U CN 210033360 U CN210033360 U CN 210033360U CN 201920615982 U CN201920615982 U CN 201920615982U CN 210033360 U CN210033360 U CN 210033360U
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- Prior art keywords
- ball
- ball seat
- seat body
- setting
- elastic
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- Expired - Fee Related
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Abstract
The utility model relates to a ball seat for preventing the back of a setting ball, which comprises a plurality of elastic retaining pieces and a ball seat body; a setting ball inlet is formed in one end of the ball seat body, the ball seat body extends from the tail end of the setting ball inlet to form an hourglass structure with gradually reduced and increased inner diameter, a connecting section with unchanged inner diameter is formed at the position where the inner diameter is reduced and increased, at least one sealing groove is formed in the outer surface of the ball seat body in a surrounding mode, and a fixing jackscrew groove is formed in the outer surface of the ball seat body; the elastic separation blade is a V-shaped two-piece structure, and is a plurality of the elastic separation blade is fixedly arranged on the side wall of the inlet of the setting ball in a surrounding manner, and the elastic separation blade is fixedly connected with the side wall of the ball seat body through a rivet through any separation blade and forms a structure with the inner diameter gradually reduced towards the direction of the hourglass structure. The utility model discloses both can solve horizontal well or highly deviated well seat and seal the ball difficulty of coming into the seat, also can effectively prevent when the upper and lower activity tubular column, seat and seal the ball and break away from the ball seat, the unable reentry problem.
Description
Technical Field
The utility model belongs to the technical field of the well completion is consolidated to the oil gas well, especially, relate to a ball seat is prevented moving back by seat packing ball.
Background
In order to realize the pressure building of the pipe string, the ball seat is an essential part whether in the well drilling or in the well string fixing process. The conventional seat ball seat is usually made of composite materials or materials such as cast iron and alloy steel, but the structure is approximately the same and is a conical surface with a certain angle, and after the seat ball reaches the position of the seat ball seat, the seat ball is contacted with the seat ball seat to form line sealing, so that the pressure of a pipe column can be suppressed. However, in actual construction, once the movable pipe column is moved up and down or the pump is stopped midway, the setting ball may be separated from the ball seat, so that the sealing is not tight when setting is carried out again. Or in a horizontal well, the ball seat can not be blocked by the setting ball. Therefore, there is a need for a ball seat that is secure in setting and can be used in any well type.
Therefore, based on the problems, the anti-receding ball seat for the setting ball can solve the problem that the setting ball of a horizontal well or a highly deviated well is difficult to seat, can effectively prevent the setting ball from being separated from the ball seat when the pipe column moves up and down, cannot reenter the problem, and has important practical significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides one kind and both can solve horizontal well or highly deviated well seat sealing ball and go into the seat difficulty, also can effectively prevent when the upper and lower activity tubular column, and seat sealing ball breaks away from the ball seat, and the seat sealing ball of unable reentry problem prevents moving back the ball seat.
The utility model provides a its technical problem take following technical scheme to realize:
a ball seat for preventing the ball from moving back for seat sealing comprises a plurality of elastic blocking pieces and a ball seat body; a setting ball inlet is formed in one end of the ball seat body, the ball seat body extends from the tail end of the setting ball inlet to form an hourglass structure with gradually reduced and increased inner diameter, a connecting section with unchanged inner diameter is formed at the position where the inner diameter is reduced and increased, at least one sealing groove is formed in the outer surface of the ball seat body in a surrounding mode, and a fixing jackscrew groove is formed in the outer surface of the ball seat body;
the elastic separation blade is a V-shaped two-piece structure, and is a plurality of the elastic separation blade is fixedly arranged on the side wall of the inlet of the setting ball in a surrounding manner, and the elastic separation blade is fixedly connected with the side wall of the ball seat body through a rivet through any separation blade and forms a structure with the inner diameter gradually reduced towards the direction of the hourglass structure.
Furthermore, the elastic baffle sheet is made of an elastic and erosion-resistant material.
Furthermore, the elastic baffle plate is made of rubber composite materials or spring steel.
The utility model has the advantages that:
1. the utility model adopts the combined structure design of the elastic retaining pieces, can ensure that the seat ball smoothly passes through the elastic conical surface formed by the elastic retaining pieces and can not return;
2. the utility model discloses the elasticity separation blade is V type structural design, through fix with rivet at ball seat body upper end internal surface, total multiunit encloses into a week in ball seat body upper end, forms elasticity circular conical surface, and during pump stopping or the upper and lower movable string post, the elasticity separation blade can effectively prevent the seat to seal the ball and break away from the ball seat.
Drawings
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
FIG. 1 is a sectional view of a seat of a setting ball anti-receding ball seat according to an embodiment of the present invention;
FIG. 2 is an assembly view of the anti-receding ball seat of the setting ball provided by the embodiment of the present invention;
in the figure:
1. elastic baffle piece 2, seat seal ball inlet 3 and rivet
4. Ball seat body 5, seal groove 6, fixed jackscrew groove
7. Ball seat nipple joint body 8, sealing ring 9 and fixed jackscrew
10. Seat ball 11, hourglass structure 12, linkage segment
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1 to 2.
Example 1
FIG. 1 is a sectional view of a seat of a setting ball anti-receding ball seat according to an embodiment of the present invention; FIG. 2 is an assembly view of the anti-receding ball seat of the setting ball provided by the embodiment of the present invention; as shown in fig. 1-2, the anti-receding ball seat for a setting ball provided in this embodiment includes a plurality of elastic blocking pieces 1 and a ball seat body 4; a setting ball inlet 2 is arranged at one end of the ball seat body 4, the ball seat body 4 extends from the tail end of the setting ball inlet 2 to form a sand leakage structure 11 with gradually reduced and increased inner diameter, a connecting section 12 with unchanged inner diameter is formed at the position where the inner diameter is reduced and increased, at least one sealing groove 5 is arranged on the outer surface of the ball seat body 4 in a surrounding mode, and a fixed top thread groove 6 is arranged on the outer surface of the ball seat body 4;
The elastic baffle plate 1 is made of an elastic and erosion-resistant material, such as a rubber composite material or spring steel.
The using method comprises the following steps: as shown in fig. 2, a sealing ring 8 is arranged on the anti-receding ball seat of the setting ball, and is placed in a ball seat short section body 7 and is fixed by a fixing jackscrew 9 to form a ball seat short section; when the device is applied on site, the ball seat short section enters a well along with a pipe column, after the setting ball 10 is thrown, the setting ball 10 smoothly passes through the elastic separation blade 1 under the slurry carrying condition and falls into the upper part of the connecting section 12, the pipe column is sealed, and when a pump is stopped or the pipe column is moved up and down, the elastic separation blade 1 can effectively prevent the setting ball from separating from the ball seat.
To sum up, the utility model discloses can provide one kind both can solve horizontal well or highly deviated well seat and seal the ball difficulty of going into the seat, also can effectively prevent when the upper and lower activity tubular column, seat and seal the ball and break away from the ball seat, the seat that can't reentry the problem seals the ball and prevents moving back the ball seat.
The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (3)
1. The utility model provides a ball seat is prevented moving back by seat sealing ball which characterized in that: comprises a plurality of elastic blocking pieces and a ball seat body; a setting ball inlet is formed in one end of the ball seat body, the ball seat body extends from the tail end of the setting ball inlet to form an hourglass structure with gradually reduced and increased inner diameter, a connecting section with unchanged inner diameter is formed at the position where the inner diameter is reduced and increased, at least one sealing groove is formed in the outer surface of the ball seat body in a surrounding mode, and a fixing jackscrew groove is formed in the outer surface of the ball seat body;
the elastic separation blade is a V-shaped two-piece structure, and is a plurality of the elastic separation blade is fixedly arranged on the side wall of the inlet of the setting ball in a surrounding manner, and the elastic separation blade is fixedly connected with the side wall of the ball seat body through a rivet through any separation blade and forms a structure with the inner diameter gradually reduced towards the direction of the hourglass structure.
2. The anti-receding ball seat for the setting ball according to claim 1, wherein: the elastic baffle plate is made of elastic and erosion-resistant material.
3. The anti-receding ball seat for the setting ball as claimed in claim 2, wherein: the elastic baffle is made of rubber composite materials or spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615982.3U CN210033360U (en) | 2019-04-30 | 2019-04-30 | Anti-receding ball seat for setting ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615982.3U CN210033360U (en) | 2019-04-30 | 2019-04-30 | Anti-receding ball seat for setting ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210033360U true CN210033360U (en) | 2020-02-07 |
Family
ID=69362913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920615982.3U Expired - Fee Related CN210033360U (en) | 2019-04-30 | 2019-04-30 | Anti-receding ball seat for setting ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210033360U (en) |
-
2019
- 2019-04-30 CN CN201920615982.3U patent/CN210033360U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201218 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |