CN104895524A - Classifying hoop - Google Patents
Classifying hoop Download PDFInfo
- Publication number
- CN104895524A CN104895524A CN201510273617.5A CN201510273617A CN104895524A CN 104895524 A CN104895524 A CN 104895524A CN 201510273617 A CN201510273617 A CN 201510273617A CN 104895524 A CN104895524 A CN 104895524A
- Authority
- CN
- China
- Prior art keywords
- main body
- groove
- borehole jack
- sizing collar
- classifying
- 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.)
- Pending
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a classifying hoop. The classifying hoop comprises a main body, a hole closing sleeve fixed to the main body through a pin and a hole opening sleeve fixed to the main body through a shearing pin. The hole closing sleeve and the main body are sealed through a sealing material, and the hole opening sleeve and the main body are sealed through the sealing material. The inner wall of the main body is provided with a groove. Part of the hole closing sleeve is located in the groove. The hole opening sleeve is provided with a fixing groove, and a compression spring is arranged in the fixing groove. A sealing ring is arranged at the contact position of the main body and the end of the hole closing sleeve. The classifying hoop is superior in performance, simple in structure, low in cost and suitable for being used on a large scale.
Description
Technical field
The present invention relates to oil well sealing device apparatus field, particularly, relate to a kind of sizing collar for oil well classification sealing.
Background technology
Current, most of oil field shallow-layer is explored exploitation, in order to obtain more oil gas energy storage and exploitation production capacity, can only dispose the exploration and development of middle-deep well, deep-well and ultradeep well.In middle-deep well, deep-well and ultradeep well, due to oil-gas Layer between the upper and lower every large, gas and formation water to reasons such as casing corrosions, need to the real-time sealing technique of full well.In order to satisfied well cementation needs, the development plan of Oilfield Company all requires must use fraclional well cementing technique for the Oil/gas Well vertically more than 2500 meters.
In fraclional well cementing technique, need to adopt sizing collar, sizing collar is also called stage cementing device or bipolar hoop, is cementing job to be divided into a kind of special device completed for twice, and in, completion construction solid at oil well, sizing collar is widely used.
Existing sizing collar its use extensively in oil exploration process, use amount is large, and its performance and price seems particularly important.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of sizing collar, and its function admirable, structure are simple, cost is low, is suitable for extensive use.
The present invention's adopted technical scheme that solves the problem is:
A kind of sizing collar, the perforate cover comprising main body, be fixed by a pin to the pass borehole jack in main body and be fixed on by shear pin in main body, described pass borehole jack and being sealed by encapsulant between perforate cover and main body, the inwall of described main body is provided with groove, the part of described pass borehole jack is positioned at groove, described perforate puts and is provided with holddown groove, is provided with Compress Spring in described holddown groove, and described main body is provided with joint ring with the contact position of closing borehole jack end.
As preferably, described joint ring is provided with sealing tooth.
As preferably, be provided with connection post in described holddown groove, described connection post is in Compress Spring and be connected between perforate cover and main body.
As preferably, the middle part of described main body is provided with cement hole.
To sum up, the invention has the beneficial effects as follows:
1, compact conformation of the present invention, is easy to manufacture, with low cost.
2, the present invention is provided with joint ring in main body and the contact position of closing borehole jack end, utilizes joint ring to improve the performance of sizing collar, improves its reliability, i.e. function admirable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark and corresponding component title in accompanying drawing: 1, main body; 2, pin; 3, borehole jack is closed; 4, shear pin; 5, perforate cover; 6, Compress Spring; 7, joint ring.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
A kind of sizing collar as shown in Figure 1, comprise main body 1, fix pass borehole jack 3 on the body 1 by pin 2 and overlap 5 by the fixing perforate on the body 1 of shear pin 4, described pass borehole jack 3 and perforate are overlapped between 5 and main body 1 and are sealed by encapsulant, the inwall of described main body 1 is provided with groove, the part of described pass borehole jack 3 is positioned at groove, described perforate cover 5 is provided with holddown groove, be provided with Compress Spring 6 in described holddown groove, described main body 1 is provided with joint ring 7 with the contact position of closing borehole jack 3 end.
Embodiment 2:
A kind of sizing collar as shown in Figure 1, the present invention optimizes on the basis of above-described embodiment, and namely described joint ring 7 is provided with sealing tooth.
Embodiment 3:
A kind of sizing collar as shown in Figure 1, the present invention optimizes on the basis of above-described embodiment, is provided with connection post in namely described holddown groove, and described connection post is in Compress Spring and be connected between perforate cover 5 and main body 1.
The middle part of described main body 1 is provided with cement hole.
As mentioned above, the present invention can be realized preferably.
Claims (4)
1. a sizing collar, comprise main body (1), by the perforate cover (5) that pin (2) is fixed on the pass borehole jack (3) in main body (1) and is fixed on by shear pin (4) in main body (1), described pass borehole jack (3) and being sealed by encapsulant between perforate cover (5) and main body (1), it is characterized in that: the inwall of described main body (1) is provided with groove, the part of described pass borehole jack (3) is positioned at groove, described perforate cover (5) is provided with holddown groove, Compress Spring (6) is provided with in described holddown groove, described main body (1) is provided with joint ring (7) with the contact position of closing borehole jack (3) end.
2. a kind of sizing collar according to claim 1, is characterized in that: described joint ring (7) is provided with sealing tooth.
3. a kind of sizing collar according to claim 1, is characterized in that: be provided with connection post in described holddown groove, and described connection post is positioned at Compress Spring and is connected between perforate cover (5) and main body (1).
4. a kind of sizing collar according to claim 1, is characterized in that: the middle part of described main body (1) is provided with cement hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273617.5A CN104895524A (en) | 2015-05-26 | 2015-05-26 | Classifying hoop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273617.5A CN104895524A (en) | 2015-05-26 | 2015-05-26 | Classifying hoop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104895524A true CN104895524A (en) | 2015-09-09 |
Family
ID=54028440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510273617.5A Pending CN104895524A (en) | 2015-05-26 | 2015-05-26 | Classifying hoop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104895524A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201024976Y (en) * | 2007-05-10 | 2008-02-20 | 辽河石油勘探局 | An automatic close hydraulic pressure hierarchical concrete injection well fixing device |
| CN201568012U (en) * | 2009-06-03 | 2010-09-01 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Stage hoop |
| CN202157782U (en) * | 2011-08-04 | 2012-03-07 | 克拉玛依塔林石油工程技术服务有限责任公司 | Improved sieve tube grading hoop for semi-cementing well |
| CN202946101U (en) * | 2012-12-07 | 2013-05-22 | 中国石油集团西部钻探工程有限公司 | Self-closing hole non-drilling type hydraulic pressure classification hoop |
| CN203570261U (en) * | 2013-12-06 | 2014-04-30 | 中国石油化工股份有限公司 | Sliding block linkage drilling-free classification cement injector |
| CN203742540U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Hydraulic grading hoop device easy to drill |
-
2015
- 2015-05-26 CN CN201510273617.5A patent/CN104895524A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201024976Y (en) * | 2007-05-10 | 2008-02-20 | 辽河石油勘探局 | An automatic close hydraulic pressure hierarchical concrete injection well fixing device |
| CN201568012U (en) * | 2009-06-03 | 2010-09-01 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Stage hoop |
| CN202157782U (en) * | 2011-08-04 | 2012-03-07 | 克拉玛依塔林石油工程技术服务有限责任公司 | Improved sieve tube grading hoop for semi-cementing well |
| CN202946101U (en) * | 2012-12-07 | 2013-05-22 | 中国石油集团西部钻探工程有限公司 | Self-closing hole non-drilling type hydraulic pressure classification hoop |
| CN203570261U (en) * | 2013-12-06 | 2014-04-30 | 中国石油化工股份有限公司 | Sliding block linkage drilling-free classification cement injector |
| CN203742540U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Hydraulic grading hoop device easy to drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203756146U (en) | Sleeve protecting setting water injection integrated pipe column | |
| CN106930730A (en) | A kind of pumping method of abandoned mine goaf coal bed gas | |
| CN107893641B (en) | A kind of underground work metal packer and method | |
| CN204571921U (en) | Anti-sticking plug is used in well cementation | |
| CN104989319A (en) | Cementing method based on continuous cementing mode in petroleum exploration | |
| CN104895524A (en) | Classifying hoop | |
| CN103452496B (en) | Integral type of adopting thick oil thermal extraction note automatically switches and produces joint | |
| CN107120072B (en) | A kind of steel pipe type cable traversing device | |
| CN105317394A (en) | High-temperature-resistant and high-pressure-bearing packer special for oil drilling | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN204299572U (en) | A kind of horizontal well is looked for and is leakage altered tubing string | |
| CN201045287Y (en) | injection-extraction integrated well head device | |
| CN106837238B (en) | A kind of self-locking rubber plug | |
| CN204899844U (en) | Hydraulic pressure trompil formula is bound round in grades | |
| CN205477410U (en) | Pipe type cable passes through device | |
| CN201568012U (en) | Stage hoop | |
| CN205558881U (en) | Bridge type layering water injection string | |
| CN204738779U (en) | Clean environment -friendly device of pumpingh well well head | |
| CN204899838U (en) | Compound bridging plug of ball cage | |
| CN201053314Y (en) | Horizontal well flexible short section | |
| CN203847100U (en) | Remote pressure display system for cable blowout preventing device | |
| CN202850937U (en) | Setting tool assembly capable of integrating well cementation and well completion | |
| CN206942722U (en) | For former well casing post packing device and test sealing pipe column | |
| CN206205836U (en) | Packer both sides' formula releasing gadget | |
| CN206376784U (en) | A kind of casing damaged well self-expanding rubber patch device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |
|
| RJ01 | Rejection of invention patent application after publication |