CN204238902U - A kind of down-hole bypass ball-and-seat - Google Patents
A kind of down-hole bypass ball-and-seat Download PDFInfo
- Publication number
- CN204238902U CN204238902U CN201420639054.8U CN201420639054U CN204238902U CN 204238902 U CN204238902 U CN 204238902U CN 201420639054 U CN201420639054 U CN 201420639054U CN 204238902 U CN204238902 U CN 204238902U
- Authority
- CN
- China
- Prior art keywords
- ball
- counterbore
- seat
- valve body
- top connection
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of down-hole bypass ball-and-seat, is made up of top connection, valve body, lower contact, ball sealer, ball hurdle.Screwed connection is passed through in top connection, valve body, lower contact; Top connection inside is provided with ball hurdle; Valve body is " recessed " character form structure, is conical seal (contact) face inside its counterbore upper end, interlacedly on the outer wall of counterbore has radial by-pass prot and axially extending bore; Ball sealer is between conical seal (contact) face and ball hurdle.The utility model has the advantages that: in lower gun body process, annular space can, from the fluid infusion of trend oil pipe, no longer need special in tubing placement balancing liquid; Produce by oil pipe blowing after perforation, eliminate annular space wax deposition blocking risk; Before operation, well-flushing capable of circulation (kill-job), reduces blowout risk.
Description
Technical field
The utility model relates to a kind of down-hole bypass ball-and-seat of oil field oil, gas, well underground work pipe column, belongs to petroleum production engineering downhole tool technical field.
Background technology
Oil pipeline transmission perforation is divided into throwing bar ignite and suppress ignition two kinds of modes, and when hole deviation is greater than 30 °, throw bar ignition and there is miso-fire risk, general employing is suppressed mode and ignited, and ignition pressure is 12.0MPa.Suppress the above tubing string of the body of a gun before igniting and be in sealing state, under enter in process to need regularly to perfusion fluid balance oil pipe external and internal pressure in oil pipe, high pressure liquid, the gas of igniting rear stratum output enter the body of a gun by body of a gun eyelet, enter oil pipe through shooting head, realize blowing and produce.Due to shooting head fault of construction, occur that oil, sleeve pipe are not communicated with or serious throttling problem through often after ignition is suppressed at scene, be forced through oil, collar-shaped space open flow is produced.Because mechanical paraffin removal cannot be carried out in oil, collar-shaped space, produce in this way and not only affect oil, gas output, and there is wax deposition blocking accident potential.In addition, operation rises before the body of a gun cannot circulation well cleanup (kill-job), there is blowout risk.
Chinese patent 201220331340.9 disclosed " self-opening type underground check valve ", Chinese patent 201120241696.9 disclosed " underground check valve ", all belong to and solve oil pipe internal flow one-way flow problem, namely fluid can only flow from bottom to top in oil pipe, can not reverse flow; Chinese patent 200420079678.5 disclosed " a kind of down-hole by-pass valve type lost circulation material running tool used in oil field " belongs to oil drilling tool technical field, and object solves loss circulation material leakage problem.The problem all solved with this novel practical has nothing to do.
Summary of the invention
The purpose of this utility model only allows fluid from Annular cutting to oil pipe to arrange one to down-hole string, cannot flow to the single flow path of annular space from oil pipe, oil pipe is entered in body of a gun process automatically from annular space fluid infusion under guaranteeing, produced by oil pipe blowing after suppressing ignition, operation is well-flushing capable of circulation (kill-job) before playing the body of a gun, provides a kind of down-hole bypass ball-and-seat.
The utility model is made up of top connection, valve body, lower contact, ball sealer, ball hurdle.Screwed connection is passed through in top connection, valve body, lower contact; Top connection inside is provided with ball hurdle; Valve body is " recessed " character form structure, is conical seal (contact) face inside its counterbore upper end, interlacedly on the outer wall of counterbore has radial by-pass prot and axially extending bore; Ball sealer is between conical seal (contact) face and ball hurdle.
The utility model advantage:
1., in lower gun body process, annular space can, from the fluid infusion of trend oil pipe, no longer need special in tubing placement balancing liquid; 2. produce by oil pipe blowing after perforation, eliminate annular space wax deposition blocking risk; 3. well-flushing capable of circulation (kill-job) before operation, reduces blowout risk.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
The utility model is made up of top connection 1, valve body 2, lower contact 3, ball hurdle 4, ball sealer 5.Screwed connection is passed through in top connection 1, valve body 2, lower contact 3.Valve body 2 is " recessed " character form structure, is conical seal (contact) face inside its counterbore 6 upper end, interlacedly on the outer wall of counterbore 6 has radial by-pass prot 8 and axially extending bore 7.
Radial by-pass prot 8 on the outer wall of described counterbore 2 symmetrically equal cloth-like, is communicated with counterbore 6 formed oily, overlap communicating passage; Under the lateral of radial by-pass prot 8, milling becomes sand control inclined hole 9.
Axially extending bore 7 on the outer wall of described counterbore 2 is equal cloth-like symmetrically, for suppressing in ignition process as shooting head provides potential source.
Described ball sealer 5 is placed on the conical seal (contact) face of counterbore 2 upper end.
It is inner that described ball hurdle 4 is arranged on top connection 1, screws in, by screwed connection, to ball sealer 5 position-limiting actions from top connection 1 upper end; Ball hurdle 4 is provided with symmetrical flowing hole vertically.
During use, the utility model is connected to suppresses detonation gun body.Under enter wellbore fluid in body of a gun process and enter valve body counterbore 6 by by-pass prot 8, under action of hydraulic force, back down ball sealer 5, enter oil pipe by the axial flowing hole in ball hurdle 4, make oil pipe no longer need to fill with equilibrium liquid; Directly suppress after putting in place under the body of a gun, ball sealer 5 coordinates shutoff oil, overlaps communicating passage with conical seal (contact) face, and highly pressurised liquid, through valve body axially extending bore 7, by action of hydraulic force on body of a gun shooting head, realizes suppressing ignition perforation; In manufacturing process, hydraulic oil, air-flow enter valve body counterbore 6 from by-pass prot 8, back down ball sealer 5 under action of hydraulic force, enter oil pipe, produced by oil pipe blowing from the axial flowing hole in ball hurdle 4; Carry out reacting cycle well-flushing (kill-job) by this passage equally before operation, after eliminating blowout hidden danger, carry out body of a gun operation.If well liquid containing sand, is then come back to annular space by inclined hole 9, is fallen into shaft bottom, make by-pass prot 8 and counterbore 6 can not result in blockage because of sand setting.
Claims (5)
1. a down-hole bypass ball-and-seat, is made up of top connection (1), valve body (2), lower contact (3), ball hurdle (4), ball sealer (5), it is characterized in that: screwed connection is passed through in top connection (1), valve body (2), lower contact (3); Valve body (2) is " recessed " character form structure, is conical seal (contact) face inside its counterbore (6) upper end, interlacedly on the outer wall of counterbore (6) has radial by-pass prot (8) and axially extending bore (7).
2. down-hole according to claim 1 bypass ball-and-seat, is characterized in that: the symmetrically equal cloth-like of the radial by-pass prot (8) on the outer wall of described counterbore (6), is communicated with counterbore (6) formed oily, overlap communicating passage; Under the lateral of radial by-pass prot (8), milling becomes sand control inclined hole (9).
3. down-hole according to claim 1 and 2 bypass ball-and-seat, is characterized in that: the axially extending bore (7) on the outer wall of described counterbore (6) is equal cloth-like symmetrically, for suppressing in ignition process as shooting head provides potential source.
4. down-hole according to claim 1 bypass ball-and-seat, is characterized in that: described ball sealer (5) is placed on the conical seal (contact) face of counterbore (6) upper end.
5. down-hole according to claim 1 bypass ball-and-seat, is characterized in that: it is inner that described ball hurdle (4) is arranged on top connection (1), screws in from top connection (1) upper end, by screwed connection, plays position-limiting action to ball sealer (5); Ball hurdle (4) is provided with symmetrical flowing hole vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639054.8U CN204238902U (en) | 2014-10-31 | 2014-10-31 | A kind of down-hole bypass ball-and-seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639054.8U CN204238902U (en) | 2014-10-31 | 2014-10-31 | A kind of down-hole bypass ball-and-seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204238902U true CN204238902U (en) | 2015-04-01 |
Family
ID=52768415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420639054.8U Expired - Fee Related CN204238902U (en) | 2014-10-31 | 2014-10-31 | A kind of down-hole bypass ball-and-seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204238902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812497A (en) * | 2017-02-20 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of annular space ball-and-seat |
| CN108533216A (en) * | 2018-05-23 | 2018-09-14 | 中国石油集团渤海钻探工程有限公司 | Liquid switch valve is returned in a kind of anti-tubing string |
-
2014
- 2014-10-31 CN CN201420639054.8U patent/CN204238902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812497A (en) * | 2017-02-20 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of annular space ball-and-seat |
| CN108533216A (en) * | 2018-05-23 | 2018-09-14 | 中国石油集团渤海钻探工程有限公司 | Liquid switch valve is returned in a kind of anti-tubing string |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20161031 |