CN102926687B - Oil well operation is visited, rushes, is dragged for integrated underground tool - Google Patents
Oil well operation is visited, rushes, is dragged for integrated underground tool Download PDFInfo
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- CN102926687B CN102926687B CN201210489635.3A CN201210489635A CN102926687B CN 102926687 B CN102926687 B CN 102926687B CN 201210489635 A CN201210489635 A CN 201210489635A CN 102926687 B CN102926687 B CN 102926687B
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Abstract
A kind of oil well operation is visited, punching, drag for integrated underground tool, comprise oil pipe, ball seat, piston cylinder, piston, cross-over sub, fishing head, sand clean out pipe and pressure releasing device, fishing head top is connected with tubing round thread, bottom is threaded with the lower end of the piston cylinder of lining in oil pipe, piston cylinder upper end shear pin is connected with suspension short circuit, hang short circuit top to be threaded with ball seat holder, ball seat is pressed with between ball seat holder and suspension short circuit upper surface, hang short circuit bottom to be connected with piston thread, piston lower portion is threaded with cross-over sub top, cross-over sub bottom is threaded with sand clean out pipe righting short circuit, sand clean out pipe righting short circuit bottom is threaded with sand clean out pipe, ball seat is provided with releasing type ball sealer when cutting off shear pin, land used releasing type pressure releasing device when being provided with the above tubing string pressure of blocking of divulging a secret in ball sealer top.
Description
Technical field
The present invention relates to a kind of oilfield operation down-hole workover tool, specifically a kind of oil well operation is visited, rushes, is dragged for integrated underground tool, the problem of flow chart together with solution spy sand, sand washing become with salvaging wrapping wire sand-proof pipe three road flow chart.
Background technology
Heavy crude heat extraction, because oil reservoir is shallow, easily shakes out, and most wells implements the construction of wrapping wire sand control.After many rounds steam injection implemented by oil well, sand control system will damage, and only has reorganization sand control, the normal production of guarantee oil well.Visiting sand washing is whether checking pit shaft has the critical process whether sand, sand control system be intact.At present, construction teams is verified sand control system by visiting sand washing this procedure, without sand then under every steam injection; Have sand then to propose to visit washing pipe post, lower instrument or oil pipe make-up extract wrapping wire sand-proof pipe, reorganize sand control construction.So both add salvaging operation, turn increase operating cost and account for the well cycle.
Summary of the invention
The object of this invention is to provide a kind of oil well operation to visit, rush, drag for integrated underground tool, solve the defect that above-mentioned prior art exists.
Technical scheme of the present invention is achieved in the following ways:
The present invention includes oil pipe, ball seat, piston cylinder, piston, cross-over sub, fishing head, sand clean out pipe and pressure releasing device, it is characterized in that fishing head top is connected with tubing round thread, bottom is threaded with the lower end of the piston cylinder of lining in oil pipe, piston cylinder upper end shear pin is connected with suspension short circuit, hang short circuit top to be threaded with ball seat holder, ball seat is pressed with between ball seat holder and suspension short circuit upper surface, hang short circuit bottom to be connected with piston thread, piston lower portion is threaded with cross-over sub top, cross-over sub bottom is threaded with sand clean out pipe righting short circuit, sand clean out pipe righting short circuit bottom is threaded with sand clean out pipe, ball seat is provided with releasing type ball sealer when cutting off shear pin, land used releasing type pressure releasing device when being provided with the above tubing string pressure of blocking of divulging a secret in ball sealer top.
Fishing head is set to cylindrical, upper inner diameter diameter is large, and lower inner diameter diameter is little, and top is provided with the box thread be connected with oil pipe, bottom is provided with the box thread be connected with piston cylinder, and lower, outer perimeter is provided with the male thread of the salvaging wrapping wire sand-proof pipe be threaded with wrapping wire sand-proof pipe.
Piston cylinder is set to cylindrical, and periphery, upper end is provided with two symmetrical shear pin holes, and lower end is provided with male thread, is provided with sealing ring in male thread upper periphery.
Hanging short circuit is set to cylindrical, and top is provided with male thread, and periphery, middle and lower part is provided with the shear pin hole corresponding with the shear pin hole on piston cylinder, and bottom is provided with male thread.
Piston is set to cylindrical, and upper end is provided with box thread, and lower end is provided with box thread, and periphery is provided with annular seal groove.
Cross-over sub is set to cylindrical, and mid diameter is large and be provided with and prevent the ring spill of sand card piston from depositing sand launder, and upper and lower is provided with male thread.
Sand clean out pipe righting short circuit is set to cylindrical, and middle part is provided with the cylindrical centering ring that external diameter is less than pipe aperture, and lower end is curved the cochlear point prying open ball sealer.
Compared with the prior art the present invention has the following advantages:
1, the present invention's handle visits sand, sand washing, salvaging wrapping wire sand-proof pipe three road flow chart simplifies is one flow chart, improves well workover efficiency, shortens the well workover cycle, improve the production time efficiency of oil well, saved workover cost.
2, reduce the operation that one to secondary removes pipe, reduce the labour intensity of well workover workman, reduce operating risk probability, decrease environmental pollution degree.
3, utilize releasing type ball sealer and releasing type pressure releasing device, simplify working string structure, be convenient to job execution, reduce task difficulty.
Accompanying drawing explanation
Fig. 1-structural representation of the present invention;
Fig. 2-pressure releasing device structural representation;
1-oil pipe in figure, 2-ball seat, 3-ball seat holder, 4-hangs short circuit, 5-shear pin, 6-piston cylinder, 7-piston, 8-cross-over sub, 9-sand clean out pipe righting short circuit, 10-fishing head, 11-sand clean out pipe, 12-pressure releasing device.
Detailed description of the invention
For disclosing technical scheme of the present invention further, elaborated by embodiment below in conjunction with Figure of description:
The present invention includes oil pipe 1, ball seat 2, piston cylinder 6, piston 7, cross-over sub 8, fishing head 10, sand clean out pipe 11 and pressure releasing device 12, it is characterized in that fishing head 10 top is connected with tubing round thread, bottom is threaded with the lower end of the piston cylinder 6 of lining in oil pipe, piston cylinder 6 upper end shear pin 5 is connected with suspension short circuit 4, hang short circuit 4 top to be threaded with ball seat holder 3, ball seat 2 is pressed with between ball seat holder 3 and suspension short circuit 4 upper surface, hang short circuit 4 bottom to be threaded with piston 7, piston 7 bottom is threaded with cross-over sub 8 top, cross-over sub 8 bottom is threaded with sand clean out pipe righting short circuit 9, sand clean out pipe righting short circuit bottom is threaded with sand clean out pipe 11, ball seat 2 is provided with releasing type ball sealer when cutting off shear pin, land used releasing type pressure releasing device when being provided with the above tubing string pressure of blocking of divulging a secret in ball sealer top.
When applying of the present invention, be connected to tubing string bottom, first visit in wrapping wire sand-proof pipe whether have sand with sand clean out pipe 11, if there is sand, illustrate that sand-proof pipe lost efficacy, need to change sand-proof pipe, first with sand clean out pipe, the sand inside and outside sand-proof pipe is gone out ground in sleeve pipe, in sand washing process, along with the reduction in sand face, sand clean out pipe falls short of, in oil pipe, ball sealer is dropped into from ground, suppress and cut off shear pin, very long owing to hanging short circuit 4, what press against that sand clean out pipe 11 also stretches down is very long, but piston 7 can not be made to stretch out piston cylinder 6, until reach bottom piston tube, now drop into pressure releasing device again ball sealer is pried open, continue to beat water under high pressure on ground and carry out sand washing, sand sand being buried sand-proof pipe goes out ground in sleeve pipe, or rush at stratum, the unresisted environment of sandpipe is watched out in formation, rotation pipeline makes being threaded togather of fishing head 10 and sand-proof pipe, ground is proposed, change new sand-proof pipe, if sand-proof pipe is good, direct sand washing, first ball sealer is thrown by above-mentioned, the working programme of rear throwing pressure releasing device, the sand water under high pressure of blocking sand-proof pipe is washed open, and take sand and return out ground, formed after crude oil enters the good environment of sand-proof pipe and oil well pump and propose sand-flushing pipe column, change pumping pipe string, just can drop into normal oil recovery.
Aboveground on probation Shengli Oil Field victory section directorial area three mouthfuls at present, all achieve successfully, individual well has saved the cost 7900 yuan of handling one-trip string, tries to achieve:
Direct economic benefit=7900 × 3=23700 unit.
Be advanced by subsequent construction one time simultaneously, make well workover time shorten one day, rate when equaling to add the driving a well in year of oil well.Calculate according to victory section directorial area individual well average day oil 4t/d:
Indirect economic effect=4t/d × 3d × 3000 yuan/t=36000 unit.
Claims (2)
1. an oil well operation is visited, punching, drag for integrated underground tool, comprise oil pipe, ball seat, piston cylinder, piston, cross-over sub, fishing head, sand clean out pipe and pressure releasing device, it is characterized in that fishing head top is connected with tubing round thread, bottom is threaded with the lower end of the piston cylinder of lining in oil pipe, piston cylinder upper end shear pin is connected with suspension short circuit, hang short circuit top to be threaded with ball seat holder, ball seat is pressed with between ball seat holder and suspension short circuit upper surface, hang short circuit bottom to be connected with piston thread, piston lower portion is threaded with cross-over sub top, cross-over sub bottom is threaded with sand clean out pipe righting short circuit, sand clean out pipe righting short circuit bottom is threaded with sand clean out pipe, ball seat is provided with releasing type ball sealer when cutting off shear pin, land used releasing type pressure releasing device when being provided with the above tubing string pressure of blocking of divulging a secret in ball sealer top, fishing head is set to cylindrical, upper inner diameter diameter is large, and lower inner diameter diameter is little, and top is provided with the box thread be connected with oil pipe, bottom is provided with the box thread be connected with piston cylinder, and lower, outer perimeter is provided with the male thread of the salvaging wrapping wire sand-proof pipe be threaded with wrapping wire sand-proof pipe, piston cylinder is set to cylindrical, and periphery, upper end is provided with two symmetrical shear pin holes, and lower end is provided with male thread, is provided with sealing ring in male thread upper periphery, hanging short circuit is set to cylindrical, and top is provided with male thread, and periphery, middle and lower part is provided with the shear pin hole corresponding with the shear pin hole on piston cylinder, and bottom is provided with male thread, piston is set to cylindrical, and upper end is provided with box thread, and lower end is provided with box thread, and periphery is provided with annular seal groove, cross-over sub is set to cylindrical, and mid diameter is large and be provided with and prevent the ring spill of sand card piston from depositing sand launder, and upper and lower is provided with male thread.
2. oil well operation according to claim 1 is visited, rushes, is dragged for integrated underground tool, it is characterized in that: sand clean out pipe righting short circuit is set to cylindrical, middle part is provided with the cylindrical centering ring that external diameter is less than pipe aperture, and lower end is curved the cochlear point prying open ball sealer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489635.3A CN102926687B (en) | 2012-11-27 | 2012-11-27 | Oil well operation is visited, rushes, is dragged for integrated underground tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489635.3A CN102926687B (en) | 2012-11-27 | 2012-11-27 | Oil well operation is visited, rushes, is dragged for integrated underground tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926687A CN102926687A (en) | 2013-02-13 |
| CN102926687B true CN102926687B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210489635.3A Expired - Fee Related CN102926687B (en) | 2012-11-27 | 2012-11-27 | Oil well operation is visited, rushes, is dragged for integrated underground tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN102926687B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779538B (en) * | 2017-09-15 | 2020-06-16 | 东营市元捷石油机械有限公司 | Petroleum downhole operation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814180A (en) * | 1972-08-31 | 1974-06-04 | Cities Service Oil Co | Well fishing apparatus |
| CN2660112Y (en) * | 2003-12-01 | 2004-12-01 | 中国石化胜利油田有限公司采油工艺研究院 | Anti-sand tool by utilizing down flushing process |
| CN2934556Y (en) * | 2005-10-28 | 2007-08-15 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Composite joint for sand flushing and salvaging |
| CN201246126Y (en) * | 2008-08-29 | 2009-05-27 | 中国石化股份胜利油田分公司孤东采油厂 | Well falling rubber part salvaging machine |
| CN201610731U (en) * | 2010-01-19 | 2010-10-20 | 中国石油化工股份有限公司 | Casing milling and salvaging integrated control tool |
| CN202850900U (en) * | 2012-11-27 | 2013-04-03 | 朱新华 | Downhole tool integrating operations of detection, washing and fishing of oil well |
-
2012
- 2012-11-27 CN CN201210489635.3A patent/CN102926687B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814180A (en) * | 1972-08-31 | 1974-06-04 | Cities Service Oil Co | Well fishing apparatus |
| CN2660112Y (en) * | 2003-12-01 | 2004-12-01 | 中国石化胜利油田有限公司采油工艺研究院 | Anti-sand tool by utilizing down flushing process |
| CN2934556Y (en) * | 2005-10-28 | 2007-08-15 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Composite joint for sand flushing and salvaging |
| CN201246126Y (en) * | 2008-08-29 | 2009-05-27 | 中国石化股份胜利油田分公司孤东采油厂 | Well falling rubber part salvaging machine |
| CN201610731U (en) * | 2010-01-19 | 2010-10-20 | 中国石油化工股份有限公司 | Casing milling and salvaging integrated control tool |
| CN202850900U (en) * | 2012-11-27 | 2013-04-03 | 朱新华 | Downhole tool integrating operations of detection, washing and fishing of oil well |
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| Publication number | Publication date |
|---|---|
| CN102926687A (en) | 2013-02-13 |
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Granted publication date: 20150930 Termination date: 20161127 |