CN204782968U - Soluble alloy fracturing ball - Google Patents
Soluble alloy fracturing ball Download PDFInfo
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- CN204782968U CN204782968U CN201520481538.9U CN201520481538U CN204782968U CN 204782968 U CN204782968 U CN 204782968U CN 201520481538 U CN201520481538 U CN 201520481538U CN 204782968 U CN204782968 U CN 204782968U
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- fracturing
- pressure break
- episphere
- ball
- lower semisphere
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Abstract
The utility model provides a soluble alloy fracturing ball, includes episphere (1) and lower semisphere (2), episphere (1) and lower semisphere (2) links together through the interference fit of boss (3) and concave station (4). Episphere (1) and lower semisphere (2) welding together. At fracturing ball surface equipartition anticorrosion coating (5). The utility model discloses saved the technology of the row's of returning operation, when the secondary fracturing also the only need drop into again the fracturing ball can, simplified the technology of secondary fracturing, make full use of current fracturing unit, have simple structure, good reliability, effectively improve advantage such as oil field tar productivity.
Description
Technical field
The utility model relates to a kind of pressure break ball, and especially a kind of soluble alloy pressure break ball, belongs to oil field sliding sleeve fracturing technical field.
Background technology
In oil field compression fracture field, because pressure break ball and the kit such as bridging plug, ball seat can be combined together closely after immense pressure during pressure break causes pressure break, pressure break ball deforms and kit is closely linked has blocked the lower channel of well casing, in order to well casing lower channel out will be got through by oil-gas mining, need the row's of the returning operation launching pressure break ball, but this down-hole at a few km can run into a lot of difficulty; When carrying out secondary fracturing operation, under well workover and again lower going-into-well, tool process is complicated, high cost.
Utility model content
For above-mentioned the deficiencies in the prior art, the utility model provide a kind of efficiently solve pressure break after pressure break ball return row difficulty and secondary fracturing complex process, a cost high difficult problem soluble alloy pressure break ball.
For achieving the above object, the technical solution adopted in the utility model is: a kind of soluble alloy pressure break ball, comprise episphere (1) and lower semisphere (2), episphere (1) and lower semisphere (2) are linked together by the interference fit of boss (3) and concave station (4).
Preferably, described episphere (1) and lower semisphere (2) weld together.
Preferably, at the pressure break ball uniform erosion shield in surface (5).
The utility model eliminates the technique of the row's of returning operation, also only need when secondary fracturing again to drop into pressure break ball, simplify the technique of secondary fracturing, take full advantage of existing fracturing unit, there is the advantages such as structure is simple, reliability strong, effective raising oil extraction in oil field rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, to the technical scheme in the utility model embodiment carry out clear, intactly describe, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
As shown in Figure 1: a kind of soluble alloy pressure break ball, comprises episphere 1 and lower semisphere 2, episphere 1 and lower semisphere 2 are welded together by the interference fit of boss 3 and concave station 4.The diameter of pressure break ball carries out manufacture processing according to the size of bridging plug internal diameter and ball seat internal diameter, and the external diameter of pressure break ball is greater than the diameter of bridging plug endoporus and ball seat endoporus, and the basis existed between the two is at 1 ~ 7mm.At the uniform erosion shield 5 in pressure break ball surface.This coating can not dissolve division before making pressure break ball carry out fracturing technology operation, and after carrying out fracturing work, erosion shield is destroyed, and the successively dissolving that pressure break ball begins from outside to inside is divided.Pressure break ball dissolves the time of division completely between 2 days to 180 days, and its dissolution time is determined according to the requirement of actual underground working, reaches the control to dissolution time by the wall thickness of adjustment pressure break ball.When needing to carry out secondary fracturing operation to oil (gas) well, according to the basis existed between pressure break ball and ball seat, soluble metal pressure break ball ascending for diameter is dropped into successively oil (gas) well and supporting ball seat and carry out cooperation and can carry out secondary fracturing operation.
Claims (3)
1. a soluble alloy pressure break ball, it is characterized in that: comprise episphere (1) and lower semisphere (2), episphere (1) and lower semisphere (2) are linked together by the interference fit of boss (3) and concave station (4).
2. a kind of soluble alloy pressure break ball as claimed in claim 1, is characterized in that: described episphere (1) and lower semisphere (2) weld together.
3. a soluble alloy pressure break ball, is characterized in that: at the pressure break ball uniform erosion shield in surface (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520481538.9U CN204782968U (en) | 2015-07-07 | 2015-07-07 | Soluble alloy fracturing ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520481538.9U CN204782968U (en) | 2015-07-07 | 2015-07-07 | Soluble alloy fracturing ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782968U true CN204782968U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520481538.9U Active CN204782968U (en) | 2015-07-07 | 2015-07-07 | Soluble alloy fracturing ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204782968U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481303A (en) * | 2016-11-07 | 2017-03-08 | 西南石油大学 | A kind of pressure break dissolves ball sealer with controllable |
| CN112443294A (en) * | 2020-10-27 | 2021-03-05 | 百勤能源科技（惠州）有限公司 | High leakproofness medicine core soluble ball |
-
2015
- 2015-07-07 CN CN201520481538.9U patent/CN204782968U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481303A (en) * | 2016-11-07 | 2017-03-08 | 西南石油大学 | A kind of pressure break dissolves ball sealer with controllable |
| CN106481303B (en) * | 2016-11-07 | 2019-06-04 | 西南石油大学 | A kind of controllable dissolution ball sealer of pressure break |
| CN112443294A (en) * | 2020-10-27 | 2021-03-05 | 百勤能源科技（惠州）有限公司 | High leakproofness medicine core soluble ball |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190814 Address after: 262200 Shandong city of Weifang Province Zhucheng Missouri City Road No. 8633 Patentee after: Shandong Hengli Heavy Loading New Technology Co., Ltd. Address before: Room 908, Block A, Pioneer Park, 86 Shenzhen Street, Jilin High-tech Zone, Jilin Province, 2013 Patentee before: Jilin Xufeng Laser Technology Co., Ltd. |