CN102536145A - Sand setting assembly for screw drilling tool - Google Patents
Sand setting assembly for screw drilling tool Download PDFInfo
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- CN102536145A CN102536145A CN2012100712647A CN201210071264A CN102536145A CN 102536145 A CN102536145 A CN 102536145A CN 2012100712647 A CN2012100712647 A CN 2012100712647A CN 201210071264 A CN201210071264 A CN 201210071264A CN 102536145 A CN102536145 A CN 102536145A
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- sand setting
- pipe
- assembly
- drilling tool
- sand
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Abstract
The invention discloses a sand setting assembly for a screw drilling tool. The sand setting assembly can prevent deposited falling objects from blocking a motor effectively, and comprises a sand setting outer pipe, an upper joint arranged at the upper end of the sand setting outer pipe, a lower joint arranged at the lower end of the sand setting outer pipe and a sand setting inner pipe arranged inside the sand setting outer pipe, wherein the lower end of the sand setting inner pipe is connected with the lower joint, and a single-flow valve is sleeved at the upper end of the sand setting inner pipe; a plurality of elliptical holes are formed in the single-flow valve; a plurality of inner elliptical holes which are matched with the elliptical holes are formed in the sand setting inner pipe; a spring base is arranged on the sand setting inner pipe at the lower end of the single-flow valve; and a spring is sleeved on the sand setting inner pipe between the single-flow valve and the spring base. The sand setting assembly has the advantages that: the sand setting assembly for the screw drilling tool is arranged on the screw drilling tool, so that the deposited falling objects can be prevented from blocking the motor effectively, and the service life of the screw drilling tool is prolonged; and the sand setting assembly is stable in operation, improves operation efficiency and reduces operation cost.
Description
Technical field
The present invention relates to a kind of oilfield downhole operation that is applied to and bore the helicoid hydraulic motor sand setting assembly that prevents the foul obstruction in the milling operation construction.
Background technology
In the process of oil well operation, need bore the mill mine water bod, crystallizable mineral and carry out sleeve pipe with helicoid hydraulic motor often except that constructions such as trowel used for plasterings, owing to the restriction of field condition and surrounding environment, often can not guarantee down the cleaning of well casing bar.Simultaneously, owing to control cost, aging aborning pipe bar repeatedly reuses; Deposition junks such as the cement after the interior brill of iron rust, dirty skin, dead oil and the well on above ground portion earth, sand grains, the pipe bar wall is broken, reservoir sand are fallen the screw drilling tool motor place through bypass valve and the inner sedimentation of drilling rod after termination of pumping; These sediment piles form in motor top to stop up and make workover fluid can not get into motor, and motor can not be worked, and cause the construction failure; Thereby need proposition down-hole helicoid hydraulic motor to change; And block the back motor and repair difficulty on ground, even can not repair, increased the oilfield downhole operation workover cost greatly.
Summary of the invention
Technical problem to be solved by this invention is: a kind of helicoid hydraulic motor sand setting assembly that junk stops up motor that can effectively prevent to precipitate is provided.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is: helicoid hydraulic motor sand setting assembly comprises: the sand setting outer tube, be arranged on the top connection of sand setting outer tube upper end, and be arranged on sand setting outer tube lower end
Lower contact and be arranged on pipe in the inner sand setting of sand setting outer tube; The lower end of pipe is connected with lower contact in the sand setting; The upper end of in sand setting, managing is arranged with ball-and-seat; On ball-and-seat, offer some elliptical apertures, pipe is provided with some interior elliptical apertures that match with elliptical aperture in sand setting, and pipe is provided with bullet in the sand setting of ball-and-seat lower end
Spring abutment is arranged with spring on the pipe in the sand setting between ball-and-seat and spring base.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: on described ball-and-seat, offer 2 elliptical apertures.
Advantage of the present invention is: above-mentioned helicoid hydraulic motor sand setting assembly is contained in when using on the helicoid hydraulic motor, can effectively prevents to precipitate junk and stop up motor, prolonged the application life of helicoid hydraulic motor, operation is steady, has improved operating efficiency, has reduced operating cost.
Description of drawings
Fig. 1 is the sectional structure sketch map of helicoid hydraulic motor sand setting assembly of the present invention.
Among the figure: 1, sand setting outer tube, 2, top connection, 3, lower contact, 4, pipe in the sand setting, 5, ball-and-seat, 6, elliptical aperture, 7, interior elliptical aperture, 8, spring base, 9, spring, 10, toroidal cavity.
The specific embodiment
Describe particular content of the present invention in detail below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, helicoid hydraulic motor sand setting assembly comprises: sand setting outer tube 1; Be arranged on the top connection 2 of sand setting outer tube 1 upper end; Pipe 4 in the lower contact 3 that the is arranged on sand setting outer tube 1 lower end sand setting inner with being arranged on sand setting outer tube 1, the lower end of pipe 4 is connected with lower contact 3 in the sand setting, in sand setting, manages 4 upper end and is arranged with ball-and-seat 5; On ball-and-seat 5, offer some elliptical apertures 6; In the present embodiment, on described ball-and-seat 5, be provided with 2 elliptical apertures 6 altogether, the number of elliptical aperture 6 can be provided with arbitrarily as required in actual application.Pipe 4 is provided with some interior elliptical apertures 7 that match with elliptical aperture 6 in sand setting, and pipe 4 is provided with spring base 8 in the sand setting of ball-and-seat 5 lower ends, is arranged with spring 9 on the pipe 4 in the sand setting between ball-and-seat 5 and spring base 8.
During use, through lower contact 3 above-mentioned helicoid hydraulic motor sand setting assembly is connected with the by-pass valve of screwdrill of upper end and the motor on helicoid hydraulic motor top, lower end, behind the turn on pump of ground; Liquid is pushed the resistance compression spring 9 that ball-and-seat 5 overcomes spring 9 open; Make in 2 elliptical apertures 6 and the sand setting on the ball-and-seat 5 that 2 interior elliptical apertures overlap on the pipe 4, form passage, manage 4 in the elliptical aperture passage entering sand setting of liquid through 4 coincidences after and carry out downwards again; Enter into the motor assembly of helicoid hydraulic motor, make motor assembly work.
When the workover fluid that contains foul was flowed through above-mentioned helicoid hydraulic motor sand setting assembly, foul can be deposited in the sand setting in the toroidal cavity 10 between the pipe 4 and sand setting outer tube 1, guarantees that assembly is not blocked, efficiently solves the problem of deposition junk obstruction motor.After the termination of pumping; Spring 9 promotes ball-and-seats 5 and makes in 4 elliptical apertures 6 and the sand setting on the ball-and-seat 5 that 4 interior elliptical apertures separate on the pipe 4, makes the passage disconnection to force liquid not flow; Liquid is in bypass valve gets into helicoid hydraulic motor in the sleeve pipe that can prevent to cause owing to the borehole pressure imbalance; And through of the collection of sand setting assembly, guaranteed the unimpeded of workover fluid, caused an inoperable difficult problem thereby efficiently solve to form to stop up behind the foul entering screw drilling tool motor in the sleeve pipe to foul.
Claims (2)
1. helicoid hydraulic motor sand setting assembly; It is characterized in that: comprising: sand setting outer tube (1); Be arranged on the top connection (2) of sand setting outer tube (1) upper end; Be arranged on the lower contact (3) of sand setting outer tube (1) lower end and be arranged on pipe (4) in the inner sand setting of sand setting outer tube (1), the lower end of pipe (4) is connected with lower contact (3) in the sand setting, and the upper end of pipe (4) is arranged with ball-and-seat (5) in sand setting; On ball-and-seat (5), offer some elliptical apertures (6); Pipe (4) is provided with some interior elliptical apertures (7) that match with elliptical aperture (6) in sand setting, and pipe (4) is provided with spring base (8) in the sand setting of ball-and-seat (5) lower end, is arranged with spring (9) on the pipe (4) in the sand setting between ball-and-seat (5) and spring base (8).
2. according to the described helicoid hydraulic motor sand setting of claim 1 assembly, it is characterized in that: on described ball-and-seat (5), offer two elliptical apertures (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071264.7A CN102536145B (en) | 2012-03-19 | 2012-03-19 | Sand setting assembly for screw drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071264.7A CN102536145B (en) | 2012-03-19 | 2012-03-19 | Sand setting assembly for screw drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536145A true CN102536145A (en) | 2012-07-04 |
| CN102536145B CN102536145B (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210071264.7A Active CN102536145B (en) | 2012-03-19 | 2012-03-19 | Sand setting assembly for screw drilling tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN102536145B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867153A (en) * | 2014-03-16 | 2014-06-18 | 盐城市新永佳石油机械制造有限公司 | Sand setting cylinder of helicoid hydraulic motor |
| CN112360389A (en) * | 2020-11-10 | 2021-02-12 | 江苏油田矿业开发有限公司 | Small workover operation method for casing leakage plugging |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1416663A1 (en) * | 1985-12-29 | 1988-08-15 | Государственный научно-исследовательский и проектный институт по освоению месторождений нефти и газа "Гипроморнефтегаз" | Device for cleaning well from sand plug |
| US6951251B2 (en) * | 2003-10-06 | 2005-10-04 | Bilco Tools, Inc. | Junk basket and method |
| CN201241645Y (en) * | 2008-04-01 | 2009-05-20 | 鲁晨光 | Alloy double-valve sand-depositing machine |
| CN202031542U (en) * | 2011-01-17 | 2011-11-09 | 西安鼎和新型能源有限公司 | Bailing device for oil well |
| CN202081847U (en) * | 2011-06-21 | 2011-12-21 | 大庆丰锐科技有限公司 | Tool for collecting junk at bottom of well |
| CN202596630U (en) * | 2012-03-19 | 2012-12-12 | 盐城市东荣石油机械厂 | Sand-settling assembly for screw drilling tool |
-
2012
- 2012-03-19 CN CN201210071264.7A patent/CN102536145B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1416663A1 (en) * | 1985-12-29 | 1988-08-15 | Государственный научно-исследовательский и проектный институт по освоению месторождений нефти и газа "Гипроморнефтегаз" | Device for cleaning well from sand plug |
| US6951251B2 (en) * | 2003-10-06 | 2005-10-04 | Bilco Tools, Inc. | Junk basket and method |
| CN201241645Y (en) * | 2008-04-01 | 2009-05-20 | 鲁晨光 | Alloy double-valve sand-depositing machine |
| CN202031542U (en) * | 2011-01-17 | 2011-11-09 | 西安鼎和新型能源有限公司 | Bailing device for oil well |
| CN202081847U (en) * | 2011-06-21 | 2011-12-21 | 大庆丰锐科技有限公司 | Tool for collecting junk at bottom of well |
| CN202596630U (en) * | 2012-03-19 | 2012-12-12 | 盐城市东荣石油机械厂 | Sand-settling assembly for screw drilling tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867153A (en) * | 2014-03-16 | 2014-06-18 | 盐城市新永佳石油机械制造有限公司 | Sand setting cylinder of helicoid hydraulic motor |
| CN112360389A (en) * | 2020-11-10 | 2021-02-12 | 江苏油田矿业开发有限公司 | Small workover operation method for casing leakage plugging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102536145B (en) | 2014-06-11 |
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Effective date of registration: 20151230 Address after: 224023 Dagang Town of Jiangsu province Yancheng City salt District Metallurgical Industrial Park No. 88 (N) Patentee after: YANCHENG DONGRONG PETROLEUM MACHINERY CO., LTD. Address before: 224043 Dagang Town of Jiangsu province Yancheng City salt District Jia Fu Cun Patentee before: Yancheng Dongrong Petroleum Machinery Plant |