CN205089270U - High pressure is put from pressure equipment of suppressing of cracked clean shot and this clean shot of use - Google Patents
High pressure is put from pressure equipment of suppressing of cracked clean shot and this clean shot of use Download PDFInfo
- Publication number
- CN205089270U CN205089270U CN201520850451.4U CN201520850451U CN205089270U CN 205089270 U CN205089270 U CN 205089270U CN 201520850451 U CN201520850451 U CN 201520850451U CN 205089270 U CN205089270 U CN 205089270U
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- CN
- China
- Prior art keywords
- spheroid
- ball
- inner core
- high pressure
- outer valve
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- 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.)
- Expired - Fee Related
Links
- 229920001342 Bakelite® Polymers 0.000 claims abstract description 17
- 239000004637 bakelite Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 210000002445 nipple Anatomy 0.000 description 5
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Check Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model provides a high pressure is from cracked clean shot, including a spheroid, the spheroid is hollow, and ball wall material is the bakelite, jam that the spheroid was equipped with an opening and matchd with the opening, the ball wall is equipped with the internal thread at the opening part, the jam is equipped with the external screw thread. Use the high pressure to put from the pressure equipment of suppressing of cracked clean shot, include body, outer valve and inner core, the body is the cylindricality, this internal outer valve and inner core of being equipped with in proper order, outer valve is fixed in the body inner wall, the inner core passes through the shear pin and connects outer valve inner wall, the internal diameter of inner core is less than the spheroid external diameter. The clean shot have certain last buoyancy, can set for the burst pressure of clean shot in addition through the wall thickness of adjusting the clean shot, when running into abnormal conditions and ball seat in the pit and suppress to fall, high pressure crushing clean shot is suppressed to the accessible, the very first time foundations circulates in the pit, reduces the risk of constructing.
Description
Technical field
The utility model relates to a kind of high pressure from cracked hollow ball and the device that builds the pressure using this hollow ball.
Background technology
In the exploitation of petroleum gas down-hole instrument, need down-hole build the pressure operation instrument get more and more, usually build the pressure operation use kit be ball seat pipe nipple, during operation from well head drop into setting ball realize build the pressure.The setting ball of current routine is mainly bakelite ball and metal ball, run into net horizontal section build the pressure operation time often because the buoyancy of setting ball does not arrive ball seat hole, do not have the effect built the pressure; Another kind of common situations is; arrive or exceeded setting pressure still not opened ball seat because pressure often can occur for down-hole exception or the partial failure of ball seat pipe nipple, made to block in whole well casing, cause drilling fluid not circulate; time may cause hole collapse once long, causes whole well to be scrapped.
Summary of the invention
In view of this, the utility model is intended to propose a kind of high pressure the uses hollow ball device that builds the pressure from cracked hollow ball and this, and can set the fracture pressure of hollow ball, can suppress broken hollow ball the very first time when running into down-hole and being abnormal, set up down-hole circulation.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of high pressure is from cracked hollow ball, and comprise a spheroid, described spheroid is hollow, and ball wall material is bakelite, the blocking that spheroid is provided with an opening and mates with opening, and described ball wall is provided with internal thread at opening part, and described blocking is provided with external screw thread.
Further, described ball wall wall thickness is 4-7mm.
Further, described blocking material is bakelite.
Use high pressure as claimed in claim 1 from the device that builds the pressure of cracked hollow ball, comprise body, outer valve, inner core and spheroid, described body is cylindricality, outer valve and inner core is provided with successively in body, described outer valve is fixed on inner body wall, described inner core connects outer valve inwall by shear pin, and the internal diameter of described inner core is less than spheroid external diameter.
Further, described inner core internal diameter comprises inclined wall part and vertical portion, and described inclined wall part contacts with spheroid, and the end vertical connecting part of inclined wall part.
Further, the internal diameter of described inner core inwall vertical portion is less than spheroid external diameter, and the radius of inclined wall part initiating terminal is greater than radius of sphericity.
Relative to prior art, the utility model has following advantage:
Hollow ball has certain buoyancy, and by the fracture pressure regulating the wall thickness of hollow ball to set hollow ball, when down-hole runs into abnormal conditions and ball seat is suppressed to fall, hollow ball can be crushed by suppressing high pressure, the very first time sets up down-hole circulation, reduces construction risk.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is for a kind of high pressure described in the utility model embodiment is from cracked hollow ball;
Fig. 2 is for using high pressure from the schematic diagram of the device that builds the pressure of cracked hollow ball described in the utility model embodiment.
Description of reference numerals:
1-spheroid, 2-opening, 3-blocks, 4-body, the outer valve of 5-, 6-inner core, 7-shear pin.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
A kind of high pressure is from cracked hollow ball, and comprise a spheroid 1, described spheroid 1 is hollow, and ball wall material is bakelite, the blocking 3 that spheroid 1 is provided with an opening 2 and mates with opening 2, and described ball wall is provided with internal thread at opening 2 place, and described blocking 3 is provided with external screw thread.
Described ball wall wall thickness is 4-7mm.
Described blocking 3 material is bakelite.
Use high pressure as claimed in claim 1 from the device that builds the pressure of cracked hollow ball, comprise body 4, outer valve 5, inner core 6 and spheroid 1, described body 4 is cylindricality, outer valve 5 and inner core 6 is provided with successively in body 4, described outer valve 5 is fixed on body 4 inwall, described inner core 6 connects outer valve 5 inwall by shear pin 7, and the internal diameter of described inner core 6 is less than spheroid 1 external diameter.
Described inner core 6 internal diameter comprises inclined wall part and vertical portion, and described inclined wall part contacts with spheroid 1, and the end vertical connecting part of inclined wall part.
Preferably, the internal diameter of described inner core 6 inwall vertical portion is less than spheroid 1 external diameter, and the radius of inclined wall part initiating terminal is greater than spheroid 1 radius.
Embodiment 1:
As shown in Figure 1-2, first in ball seat pipe nipple, hollow bakelite ball is dropped at well head, hollow bakelite ball 1 diameter 40mm, blocking 3 diameters is 10mm, when wall thickness is 4mm, the descending circular hole falling into ball seat inner core 6 of spheroid 1 starts to build the pressure, and when arriving predetermined pressure, ball seat inner core 6 ruptures with the shear pin 7 of the outer valve 5 of ball seat, and ball seat inner core 6 has dropped and built the pressure.If down-hole occurs that abnormal conditions shear pin 7 lost efficacy, the outer valve 5 of ball seat inner core 6 and ball seat can not be separated with normal pressure, for making the foundation circulation as early as possible of whole well, can be forced into 18MPA by cementing truck and make hollow bakelite ball cracked, the very first time sets up the circulation of whole well.
Embodiment 2:
As shown in Figure 1-2, first in ball seat pipe nipple, hollow bakelite ball is dropped at well head, hollow bakelite ball 1 diameter 45mm, blocking 3 diameters is 10mm, when wall thickness is 5mm, the descending circular hole falling into ball seat inner core 6 of spheroid 1 starts to build the pressure, and when arriving predetermined pressure, ball seat inner core 6 ruptures with the shear pin 7 of the outer valve 5 of ball seat, and ball seat inner core 6 has dropped and built the pressure.If down-hole occurs that abnormal conditions shear pin 7 lost efficacy, the outer valve 5 of ball seat inner core 6 and ball seat can not be separated with normal pressure, for making the foundation circulation as early as possible of whole well, can be greater than 25MPA by cementing truck pressurization and make hollow bakelite ball cracked, the very first time sets up the circulation of whole well.
Embodiment 3:
As shown in Figure 1-2, first in ball seat pipe nipple, hollow bakelite ball is dropped at well head, hollow bakelite ball 1 diameter 50mm, blocking 3 diameters is 10mm, when wall thickness is 7mm, the descending circular hole falling into ball seat inner core 6 of spheroid 1 starts to build the pressure, and when arriving predetermined pressure, ball seat inner core 6 ruptures with the shear pin 7 of the outer valve 5 of ball seat, and ball seat inner core 6 has dropped and built the pressure.If down-hole occurs that abnormal conditions shear pin 7 lost efficacy, the outer valve 5 of ball seat inner core 6 and ball seat can not be separated with normal pressure, for making the foundation circulation as early as possible of whole well, can be forced into 32MPA by slush pump and make hollow bakelite ball cracked, the very first time sets up the circulation of whole well.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a high pressure is from cracked hollow ball, it is characterized in that: comprise a spheroid (1), described spheroid (1) is for hollow, ball wall material is bakelite, the blocking (3) that spheroid (1) is provided with an opening (2) and mates with opening (2), described ball wall is provided with internal thread at opening (2) place, and described blocking (3) is provided with external screw thread.
2. a kind of high pressure according to claim 1 is from cracked hollow ball, it is characterized in that: described ball wall wall thickness is 4-7mm.
3. a kind of high pressure according to claim 1 is from cracked hollow ball, it is characterized in that: described blocking (3) material is bakelite.
4. use high pressure as claimed in claim 1 from the device that builds the pressure of cracked hollow ball, it is characterized in that: comprise body (4), outer valve (5) inner core (6) and spheroid (1), described body (4) is cylindricality, outer valve (5) and inner core (6) is provided with successively in body (4), described outer valve (5) is fixed on body (4) inwall, described inner core (6) connects outer valve (5) inwall by shear pin (7), and the internal diameter of described inner core (6) is less than spheroid (1) external diameter.
5. use high pressure according to claim 4 is from the device that builds the pressure of cracked hollow ball, it is characterized in that: described inner core (6) internal diameter comprises inclined wall part and vertical portion, described inclined wall part contacts with spheroid (1), and the end vertical connecting part of inclined wall part.
6. use high pressure according to claim 5 is from the device that builds the pressure of cracked hollow ball, it is characterized in that: the internal diameter of described inner core (6) inwall vertical portion is less than spheroid (1) external diameter, the radius of inclined wall part initiating terminal is greater than spheroid (1) radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850451.4U CN205089270U (en) | 2015-10-29 | 2015-10-29 | High pressure is put from pressure equipment of suppressing of cracked clean shot and this clean shot of use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850451.4U CN205089270U (en) | 2015-10-29 | 2015-10-29 | High pressure is put from pressure equipment of suppressing of cracked clean shot and this clean shot of use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089270U true CN205089270U (en) | 2016-03-16 |
Family
ID=55479971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850451.4U Expired - Fee Related CN205089270U (en) | 2015-10-29 | 2015-10-29 | High pressure is put from pressure equipment of suppressing of cracked clean shot and this clean shot of use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554843A (en) * | 2019-09-26 | 2021-03-26 | 中国石油化工股份有限公司 | Multiple-switch circulating valve |
-
2015
- 2015-10-29 CN CN201520850451.4U patent/CN205089270U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554843A (en) * | 2019-09-26 | 2021-03-26 | 中国石油化工股份有限公司 | Multiple-switch circulating valve |
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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: 20210730 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: No.106 Huanghai Road, Binhai New Economic and Technological Development Zone, Tianjin 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 |