CN204098903U - A kind of down-hole string pressure testing, pressure relief tool - Google Patents
A kind of down-hole string pressure testing, pressure relief tool Download PDFInfo
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- CN204098903U CN204098903U CN201420535479.4U CN201420535479U CN204098903U CN 204098903 U CN204098903 U CN 204098903U CN 201420535479 U CN201420535479 U CN 201420535479U CN 204098903 U CN204098903 U CN 204098903U
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- pressure
- pressure testing
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- hole string
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Abstract
The utility model is a kind of down-hole string pressure testing, the pressure relief tool of petroleum industry use, is not only applicable to common straight well, is also applicable to the larger horizontal well of difficulty of construction, can checks the sealing performance of down-hole string and the sealing performance of sleeve pipe.The utility model comprises body and pressure release ball, and body is provided with relief hole, and in body, install fixation clip, support spring, pressure release ball and sliding sleeve from top to bottom successively, sliding sleeve is connected by pin with body.This device both can use as common valve, suppresses the pressure testing operation of completed well lower tubular column, can be suppressed by cementing truck and pressure testing tubing string is communicated with sleeve pipe again by cementing truck.Easy to operate, significantly improve operating efficiency, there is good result of use.
Description
Technical field
The utility model relates to the pressure testing apparatus for work of petroleum industry down-hole string, particularly a kind of down-hole string pressure testing, pressure relief tool, not only be applicable to common straight well, be also applicable to the larger horizontal well of difficulty of construction, the sealing performance of down-hole string and the sealing performance of sleeve pipe can be checked.
Background technology
Each block of current viscous crude operation area has many horizontal wells, and when carrying pressure testing tubing string or testing casing string, because horizontal well horizontal segment is excessive, with common valve pressure testing, valve ball cannot be fixed on valve seat, thus cannot carry out pipe string pressure test.If tubing string cannot normally pressure testing, the high-voltage construction in later stage just cannot ensure its construction quality.If use special bleeder pressure testing, after pressure testing, drop into steel stem class material in tubing string, if the copper pin of bleeder can be interrupted, the examination hydraulic water in tubing string just can flow in sleeve pipe, avoids the environment pollution that upper lifting pipe post causes.But horizontal well mean level well section is longer, the liquid resistance in tubing string added by steel stem class material after arriving horizontal segment, speed will lower, and cannot throw out bleeder, causes upper lifting pipe post operation jet pipe.Both caused large-area environment pollution around well head, and again because reasons such as sewage greasy dirts, added the work difficulty of operating personnel, increase operation and account for the well cycle.
Summary of the invention
The purpose of this utility model is to provide a kind of down-hole string pressure testing, pressure relief tool, can save working procedure, also can to pipe string pressure test in well, and pressure release also facilitates, and improves operating efficiency.
The technical solution of the utility model is: a kind of down-hole string pressure testing, pressure relief tool comprise body and pressure release ball, body is provided with relief hole, in body, install fixation clip, support spring, pressure release ball and sliding sleeve from top to bottom successively, sliding sleeve is connected by pin with body.
Compared with prior art, the beneficial effects of the utility model are: this device both can use as common valve, suppress the pressure testing operation of completed well lower tubular column, can be suppressed by cementing truck and pressure testing tubing string is communicated with sleeve pipe again by cementing truck.Do not use bleeder just can release liquid in tubing string, prevent upper lifting pipe post jet pipe.According to different construction requirements, the pin of some is installed, just can completes the construction of different pressures, easy to operate, significantly improve operating efficiency, there is good result of use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Detailed description of the invention
Below in conjunction with accompanying drawing in detail the utility model is described in detail, see Fig. 1, a kind of down-hole string pressure testing, pressure relief tool comprise body 1 and pressure release ball 4, body 1 is provided with relief hole, in body 1, install fixation clip 2, support spring 3, pressure release ball 4 and sliding sleeve 5 successively from top to bottom, sliding sleeve 5 is connected by pin 6 with body 1.Body 1 is provided with internal thread and is connected with fixation clip 2.Another kind of embodiment is see Fig. 2, and can process every platform in body 1, fixation clip 2 is placed in the below every platform, other parts load from the bottom of body 1.The position of the corresponding pin 6 of sliding sleeve 5 is provided with pin slot.Relief hole be positioned at pin 6 below, be at least provided with two, pin 6 is at least provided with three.
First to checkmate stifled short circuit G.I.H, then this device be connected G.I.H with oil pipe, under to after requiring the degree of depth, with pump truck to pipe string pressure test.After pressure testing is qualified, then increases pressure and interrupted by the pin 6 of this device, sliding sleeve 5 will be advanced into down in dead stifled pipe nipple.Liquid in tubing string will flow in sleeve pipe from the oil leak hole of body 1 and pin hole.
Claims (5)
1. down-hole string pressure testing, a pressure relief tool, comprise body and pressure release ball, it is characterized in that, body is provided with relief hole, and in body, install fixation clip, support spring, pressure release ball and sliding sleeve from top to bottom successively, sliding sleeve is connected by pin with body.
2. a kind of down-hole string pressure testing according to claim 1, pressure relief tool, is characterized in that, described body is provided with internal thread and is connected with fixation clip.
3. a kind of down-hole string pressure testing according to claim 1, pressure relief tool, is characterized in that, in described body, processing is every platform, fixation clip is placed in the below every platform.
4. a kind of down-hole string pressure testing according to claim 1, pressure relief tool, is characterized in that, the position of the corresponding pin of described sliding sleeve is provided with pin slot.
5. a kind of down-hole string pressure testing according to claim 1, pressure relief tool, is characterized in that, described relief hole be positioned at pin below, be at least provided with two, pin is at least provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535479.4U CN204098903U (en) | 2014-09-18 | 2014-09-18 | A kind of down-hole string pressure testing, pressure relief tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535479.4U CN204098903U (en) | 2014-09-18 | 2014-09-18 | A kind of down-hole string pressure testing, pressure relief tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204098903U true CN204098903U (en) | 2015-01-14 |
Family
ID=52267339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420535479.4U Expired - Fee Related CN204098903U (en) | 2014-09-18 | 2014-09-18 | A kind of down-hole string pressure testing, pressure relief tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204098903U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533342A (en) * | 2015-01-20 | 2015-04-22 | 中国石油化工股份有限公司 | Ball base tool for horizontal well |
| CN106609664A (en) * | 2015-12-24 | 2017-05-03 | 陕西创源石油科技有限公司 | Multifunctional pressure test ball seat for well repair |
| CN107587861A (en) * | 2016-07-06 | 2018-01-16 | 中国石油化工股份有限公司 | One kind is with brill sand washing pressure testing aerial drainage integrated apparatus |
| CN108086932A (en) * | 2018-01-23 | 2018-05-29 | 东营百华石油技术开发有限公司 | A kind of pressure testing device for preventing mud from being sprayed from oil pipe |
| CN110542020A (en) * | 2019-01-29 | 2019-12-06 | 深圳海油工程水下技术有限公司 | underwater testing device, system and method for deepwater sea pipe |
-
2014
- 2014-09-18 CN CN201420535479.4U patent/CN204098903U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533342A (en) * | 2015-01-20 | 2015-04-22 | 中国石油化工股份有限公司 | Ball base tool for horizontal well |
| CN106609664A (en) * | 2015-12-24 | 2017-05-03 | 陕西创源石油科技有限公司 | Multifunctional pressure test ball seat for well repair |
| CN107587861A (en) * | 2016-07-06 | 2018-01-16 | 中国石油化工股份有限公司 | One kind is with brill sand washing pressure testing aerial drainage integrated apparatus |
| CN108086932A (en) * | 2018-01-23 | 2018-05-29 | 东营百华石油技术开发有限公司 | A kind of pressure testing device for preventing mud from being sprayed from oil pipe |
| CN110542020A (en) * | 2019-01-29 | 2019-12-06 | 深圳海油工程水下技术有限公司 | underwater testing device, system and method for deepwater sea pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20160918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |