CN204920901U - Ball cage complex ball cage subassembly for bridging plug - Google Patents
Ball cage complex ball cage subassembly for bridging plug Download PDFInfo
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- CN204920901U CN204920901U CN201520706456.XU CN201520706456U CN204920901U CN 204920901 U CN204920901 U CN 204920901U CN 201520706456 U CN201520706456 U CN 201520706456U CN 204920901 U CN204920901 U CN 204920901U
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Abstract
The utility model relates to an oil gas production equipment technical field discloses a ball cage complex ball cage subassembly for bridging plug, including ball seat, steel ball and the cover of blocking, block cover outer wall and ball seat inner wall threaded connection retrain the steel ball in the ball seat, and the pipe wall has the steel ball contact surface of trumpet - shaped form in the ball seat, and steel ball contact surface mucilage binding has the sheet rubber. Its simple structure, simple to operate, it is sealed firm, bore and grind efficiently, even when containing the great impurity of hardness in the bridging plug, sealed effect is still fine.
Description
Technical field
The utility model relates to oil gas production equipment technical field, particularly relates to a kind of ball cage type composite bridge plug ball basket assembly.
Background technology
Shale gas, shale gas contains the natural gas resource that can supply exploitation in rammell, and the shale gas recoverable reserves of China occupies first place in the world, and the economical and efficient exploitation of shale gas is significant to national society.Carry out the unconventionaloil pool such as shale gas reservoir at present both at home and abroad and hide the easy brill formula composite bridge plug multi-section multi-layer fracturing technique of the main use of exploitation, this technology because it is simple by the restriction of the staged fracturing number of plies, tool tubular column, bridging plug bore milling complete after ensure that pit shaft unimpeded be convenient to subsequent technique tubing string under to enter etc. advantage abroad segmentation progression many, transform sweeping low-permeability oil gas well, the aboveground extensive use of shale gas, achieve significant effect of increasing production.
But capping tools bridging plug existence sealing important in this technology is at present unreliable, brill mill efficiency is low, easily block, part is more, the more high problems of complex structure, cost.And ball basket assembly is the important component part in bridging plug, the quality of ball basket assembly is related to the shutoff sealing quality of bridging plug, and existing ball basket assembly has impurity in bridging plug, and during the impurity that particularly hardness is larger, the sealing performance of shutoff is very bad.
Utility model content
The utility model aims to provide a kind of ball cage type composite bridge plug ball basket assembly, well solves the problems referred to above, and its structure is simple, and easy for installation, it is firm to seal, and it is high to bore mill efficiency, though in bridging plug containing the impurity that hardness is larger time, sealing effectiveness is still fine.
The technical solution of the utility model is a kind of ball cage type composite bridge plug ball basket assembly, comprise ball seat, steel ball and cover of blocking, cover outer wall of blocking is connected with ball seat inner thread, steel ball is constrained in ball seat, ball seat inner tubal wall has the steel ball contact surface of horn mouth shape, and steel ball contact surface mucilage binding has sheet rubber.
Further, described ball seat outer wall is provided with screw thread.
Further, cover of blocking described in is porous plate.
Further, described cover of blocking is hollow section, described cover inside of blocking is provided with puts ball section and the section of blocking, described ball section internal diameter of putting is greater than the section of blocking internal diameter, described steel ball is placed on ball section, put ball section internal diameter and steel ball size matched in clearance, described in put ball section and contact face width footpath end with steel ball and connect, described in put ball section inwall and be milled with multiple radial strip groove vertically.
Further, described sheet rubber is at least one deck.
Further, described ball seat, steel ball and cover of blocking are composite material and make.
The beneficial effects of the utility model are: steel ball contact surface mucilage binding of the present utility model has the design of sheet rubber, make steel ball under the effect of the pressure, contact tightr with ball seat, sealing is tighter, and the resilient characteristic of sheet rubber, even if when making there are the impurity such as sand between steel ball and steel ball contact surface, impurity also can be under the effect of the pressure, be absorbed in sheet rubber, can not make to produce gap between steel ball and steel ball contact surface, seal more reliable; The Design of Screw Thread of ball seat outer wall, what make that the utility model ball basket assembly can be very fast is arranged in central tube; The cover of blocking of porous plate is suitable for Vertical Well, and the cover of blocking of hollow section is suitable for level and inclined shaft, and make steel ball stressed more even, balance, sealing is better; Ball seat, steel ball and cover of blocking are composite material and make, and make that ball basket assembly is more easily drilled to be removed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the utility model;
Fig. 2 is the structural representation of the utility model the second embodiment;
Fig. 3 is the sectional view in the utility model Fig. 2;
In figure: 1. ball seat, 2. steel ball, 3. block cover, 4. sheet rubber.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the utility model is further elaborated.
Embodiment one, as shown in Figure 1, the utility model provides a kind of ball cage type composite bridge plug ball basket assembly, comprise ball seat 1, steel ball 2 and cover 3 of blocking, cover 3 outer wall of blocking is connected with ball seat 1 inner thread, constrained in by steel ball 2 in ball seat 1, ball seat 1 inner tubal wall has the steel ball contact surface of horn mouth shape, and steel ball contact surface mucilage binding has sheet rubber 4.Ball seat 1 outer wall is provided with screw thread.Block cover 3 for porous plate.This type ball basket assembly is applicable to and Vertical Well.
Embodiment two, as shown in Figure 2,3, the utility model provides a kind of ball cage type composite bridge plug ball basket assembly, comprise ball seat 1, steel ball 2 and cover 3 of blocking, cover 3 outer wall of blocking is connected with ball seat 1 inner thread, constrained in by steel ball 2 in ball seat 1, ball seat 1 inner tubal wall has the steel ball contact surface of horn mouth shape, and steel ball contact surface mucilage binding has sheet rubber 4.Block cover 3 for hollow section, cover 3 inside of blocking is provided with and puts ball section and the section of blocking, put ball section internal diameter and be greater than the section of blocking internal diameter, steel ball 2 is placed on ball section, put ball section internal diameter to coordinate with steel ball 2 diametric clearance, put ball section to contact face width footpath end with steel ball and connect, put ball section inwall and be milled with multiple radial strip groove vertically.This type of ball basket assembly to horizontal well and inclined shaft effect remarkable equally.
Sheet rubber 4 is at least one deck, and sheet rubber 4 is thicker, and sealing effectiveness is better.Ball seat 1, steel ball 2 and cover 3 of blocking are composite material and make, and make that whole ball basket assembly is more easily drilled to be removed.。
During use, ball seat 1 is arranged in central tube, then puts into steel ball 2, then cover 3 of blocking is installed in ball seat 1, its structure is simple, and easy for installation, it is firm to seal, bore mill efficiency high, in time in bridging plug containing hardness larger impurity time, sealing effectiveness is still fine.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the utility model.
Claims (6)
1. a ball cage type composite bridge plug ball basket assembly, it is characterized in that: comprise ball seat, steel ball and cover of blocking, described cover outer wall of blocking is connected with ball seat inner thread, steel ball is constrained in ball seat, described ball seat inner tubal wall has the steel ball contact surface of horn mouth shape, and described steel ball contact surface mucilage binding has sheet rubber.
2. ball cage type composite bridge plug ball basket assembly according to claim 1, is characterized in that: described ball seat outer wall is provided with screw thread.
3. ball cage type composite bridge plug ball basket assembly according to claim 1, is characterized in that: described in cover of blocking be porous plate.
4. ball cage type composite bridge plug ball basket assembly according to claim 1, it is characterized in that: described in cover of blocking be hollow section, described cover inside of blocking is provided with puts ball section and the section of blocking, described ball section internal diameter of putting is greater than the section of blocking internal diameter, described steel ball is placed on ball section, put ball section internal diameter and steel ball size matched in clearance, described in put ball section and contact face width footpath end with steel ball and connect, described in put ball section inwall and be milled with multiple radial strip groove vertically.
5. ball cage type composite bridge plug ball basket assembly according to claim 1, is characterized in that: described sheet rubber is at least one deck.
6. ball cage type composite bridge plug ball basket assembly according to claim 1, is characterized in that: described ball seat, steel ball and cover of blocking are composite material and make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706456.XU CN204920901U (en) | 2015-09-11 | 2015-09-11 | Ball cage complex ball cage subassembly for bridging plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706456.XU CN204920901U (en) | 2015-09-11 | 2015-09-11 | Ball cage complex ball cage subassembly for bridging plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920901U true CN204920901U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520706456.XU Active CN204920901U (en) | 2015-09-11 | 2015-09-11 | Ball cage complex ball cage subassembly for bridging plug |
Country Status (1)
| Country | Link |
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| CN (1) | CN204920901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386140A (en) * | 2018-03-30 | 2018-08-10 | 平顶山天成钻机钻具制造有限公司 | A kind of anti-return water drilling rod |
| CN108386138A (en) * | 2018-03-30 | 2018-08-10 | 平顶山天成钻机钻具制造有限公司 | A kind of coal mine boring assemblies |
-
2015
- 2015-09-11 CN CN201520706456.XU patent/CN204920901U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386140A (en) * | 2018-03-30 | 2018-08-10 | 平顶山天成钻机钻具制造有限公司 | A kind of anti-return water drilling rod |
| CN108386138A (en) * | 2018-03-30 | 2018-08-10 | 平顶山天成钻机钻具制造有限公司 | A kind of coal mine boring assemblies |
| CN108386138B (en) * | 2018-03-30 | 2024-05-14 | 平顶山天成矿山工程设备有限公司 | Drilling assembly for coal mine |
| CN108386140B (en) * | 2018-03-30 | 2024-05-14 | 平顶山天成矿山工程设备有限公司 | Backwater prevention drill rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160317 Address after: 100000 Beijing city Chaoyang District Henan Road No. 1 Building No. 4 room 1110 Patentee after: Shun Tai Energy Technology Development Co., Ltd. Address before: 404100 Chongqing Yubei District City Longxing Zhen Ying Long Road No. 19 Patentee before: CHONGQING DINGSHUNLONG ENERGY TECHNOLOGY CO., LTD. |