CN102146776A - Continuous sand washing device for horizontal well - Google Patents
Continuous sand washing device for horizontal well Download PDFInfo
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- CN102146776A CN102146776A CN2010101106147A CN201010110614A CN102146776A CN 102146776 A CN102146776 A CN 102146776A CN 2010101106147 A CN2010101106147 A CN 2010101106147A CN 201010110614 A CN201010110614 A CN 201010110614A CN 102146776 A CN102146776 A CN 102146776A
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Abstract
The invention discloses a continuous sand washing device for a horizontal well, which comprises a reversing valve shell, a valve core, a valve seat, a spring, a sliding valve, a top claw of the sliding valve, an airtight three-way shell, an upper steel ring, a lower steel ring, an upper stripper rubber, a lower stripper rubber, an upper rubber gland, a reversing three-way shell, an A direction ball seat, a B direction ball seat, steel balls, a three-way exit, pipelines, a pup joint, a bolt group, a big four-way joint, an oil tube and a casing. A communicating hole is opened or closed when the pup joint is assembled or disassembled, so that the communicating hole can be accurately opened or closed; and the sand washing fluid and sand carrying fluid can flow in a runner as designed, therefore, the continuous sand washing can be realized, and the continuous sand washing device can be used for sand washing of an oil-water well compared with the conventional sand washing method that cannot solve the sand washing problems, particularly the sand washing for the horizontal well. By using the device for sand washing, the sand cannot sink to bury the sand washing oil tube, the engineering accident is avoided, the sand washing time is short, and the labor intensity of workers is low, therefore, the device has obvious economic benefit.
Description
Technical field
The present invention is the working equipment of well workover on the oilfield horizontal well, is a kind of horizontal well continuous sand flushing device.
Background technology
Oilfield horizontal well is more at present, the possibility of shaking out is big, sand production in oil generally is deposited on net horizontal section, sand setting must be gone out pit shaft during workover treatment could ordinary production, and sand washing method commonly used at present is under sand washing during single oil pipe, and pump truck is wanted termination of pumping, sand cleaning fluid flows and stops, sand cleaning fluid carries behind the sand that sand sinks to burying the sand washing oil pipe easily when arrheaing, and the sand washing oil pipe is blocked, and causes the Important Project accident.For avoiding accident to take place, multiple continuous sand flushing device was also once adopted at the scene, when making under its sand washing single oil pipe without termination of pumping, sand cleaning fluid can continuously be provided, sand cleaning fluid successively returns out ground after taking sand, the problem that the sand deposition buries the sand washing oil pipe can not occur, be exactly to design in order to solve the horizontal well sand washing as Chinese patent application 200720173046.9 " feed liquor valveless formula is controlled reverse continuous sand flushing device ".But it is unreliable that its sliding sleeve moves, and can not make the reliable switch of linked hole, and the purpose of realization continuous sand flushing that can not be complete does not reach desirable effect.
Summary of the invention
The objective of the invention is to design a kind of horizontal well continuous sand flushing device, overcome the deficiencies in the prior art, solve the reliable operation problem, realize horizontal well continuous sand flushing smoothly.
The object of the present invention is achieved like this: the reversal valve housing is arranged, spool, valve seat, spring, slide-valve, slide-valve top pawl, airtight three-way body, last stripper rubber, lower seal rubber, last rubber gland, the commutation three-way body, A is to ball seat, B is to ball seat, steel ball, the threeway outlet, pipeline, pipe nipple, the bolt group, big four, oil pipe, sleeve pipe, big four is connected with sleeve pipe, airtight three-way body is fixed on the big four by the bolt group, lower seal rubber is installed between airtight three-way body and the big four, last rubber gland is fixed on the airtight three-way body by the bolt group, install stripper rubber between last rubber gland and the airtight three-way body, the reversal valve housing is in the airtight three-way body, last stripper rubber, lower seal rubber encases the reversal valve housing, on the reversal valve housing linked hole is arranged, linked hole is in stripper rubber when connecting oil pipe, between the lower seal rubber, the reversal valve lower housing portion is connected with oil pipe, spool is installed in the reversal valve housing, valve seat, spring, slide-valve, slide-valve top pawl, spool is connected with valve seat, valve seat is fixed in the reversal valve housing, spool penetrates in the slide-valve and shoulder fitted seal in the slide-valve, slide-valve is supported by spring, slide-valve top pawl is arranged at slide-valve top, slide-valve can slide in the reversal valve housing, linked hole is opened or closed, outlet on the airtight three-way body is connected with the commutation three-way body, the commutation three-way body has the threeway outlet, the outlet of commutation three-way body right-hand member is connected with pipe nipple with pipeline, A is installed to ball seat in the left side in the commutation three-way body, A is in the left side of threeway outlet to ball seat, B is installed to ball seat in the right side in the commutation three-way body, B is in the right side of threeway outlet to ball seat, A installs steel ball to ball seat and B between ball seat, steel ball and A are to ball seat right output port fitted seal, steel ball and B are to ball seat left port fitted seal, when pipe nipple is connected with the reversal valve housing, pipe nipple presses down slide-valve top pawl, slide-valve, slide-valve moves down closes linked hole, slide-valve leaves spool, pipe nipple and oil pipe UNICOM, after slide-valve moves down and cuts out linked hole, when oil pipe is descending during sand washing, the reversal valve housing is descending with oil pipe, linked hole is closed, sand cleaning fluid enters sleeve pipe from big four, upwards return out from oil pipe after taking sand, through pipe nipple, pipeline, B is to ball seat, the threeway outlet is flowed out, this moment is under the effect of liquid stream, steel ball and A are to ball seat right output port fitted seal, after an oil pipe all is lowered to sleeve pipe, reversal valve housing on another oil pipe enters in the airtight three-way body, linked hole is in stripper rubber, between the lower seal rubber, the dismounting pipe nipple, pipe nipple loses the constraint to slide-valve top pawl, it is up that spring supports slide-valve, shoulder fitted seal in spool and the slide-valve, linked hole is opened simultaneously, sand cleaning fluid enters sleeve pipe from big four, upwards return out from oil pipe after taking sand, through linked hole, A is to ball seat, the threeway outlet is flowed out, this moment, steel ball and B were to ball seat right output port fitted seal under the effect of liquid stream.
Install steel ring between last stripper rubber and the last rubber gland, between lower seal rubber and the big four lower steel ring is installed.
A is magnetic material to ball seat, B to ball seat.
The invention has the beneficial effects as follows: linked hole opens or closes when the mounting or dismounting pipe nipple, so accurately opening and closing of linked hole, sand cleaning fluid and load fluid can be by the flow passage of design, therefore, the present invention can realize continuous sand flushing, can be used for the oil-water well sand washing that conventional sand washing method can not solve the sand washing problem, be particularly useful for the horizontal well sand washing, when adopting sand washing of the present invention, sand can not sink to burying the sand washing oil pipe, can not cause engineering accident, the sand washing time is short, labor strength is low, and therefore, the present invention has remarkable economic efficiency.
Description of drawings
Accompanying drawing is the assembling drawing of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described.
As seen from the figure, embodiments of the invention are by reversal valve housing 1, spool 2, valve seat 3, spring 4, slide-valve 5, slide-valve top pawl 6, airtight three-way body 8, last steel ring 9, lower steel ring 10, last stripper rubber 11, lower seal rubber 12, last rubber gland 13, commutation three-way body 15, A is to ball seat 16, B is to ball seat 17, steel ball 18, threeway outlet 19, pipeline 20, pipe nipple 21, bolt group 22, big four 23, oil pipe 24, sleeve pipe 25 is formed, big four 23 is connected with sleeve pipe 25, airtight three-way body 8 is fixed on the big four 23 by the bolt group, lower seal rubber 12 is installed between airtight three-way body 8 and the big four 23, last rubber gland 13 is fixed on the airtight three-way body 8 by bolt group 22, install stripper rubber 11 between last rubber gland 13 and the airtight three-way body 8, install steel ring 9 between last stripper rubber 11 and the last rubber gland 13, lower steel ring 10 is installed between lower seal rubber 12 and the big four 23.Reversal valve housing 1 is in the airtight three-way body 8, last stripper rubber 11, lower seal rubber 12 encases reversal valve housing 1 and can form sealing, linked hole 7 is arranged on the reversal valve housing 1, linked hole 7 is in stripper rubber 11 when connecting oil pipe, between the lower seal rubber 12, reversal valve housing 1 bottom is connected with oil pipe 24, spool 2 is installed in the reversal valve housing 1, valve seat 3, spring 4, slide-valve 5, slide-valve top pawl 6, spool 2 is connected with valve seat 3, valve seat 3 is fixed in the reversal valve housing 1, spool 2 penetrates in the slide-valve 5 and shoulder fitted seal in the slide-valve 5, slide-valve 5 is supported by spring 4, slide-valve top pawl 6 is arranged at slide-valve 5 tops, slide-valve 5 can slide in reversal valve housing 1, linked hole 7 is opened or closed, outlet 14 on the airtight three-way body 8 is connected with commutation three-way body 15, commutation three-way body 15 has threeway outlet 19, the outlet of commutation three-way body 15 right-hand members is connected with pipe nipple 21 with pipeline 20, A is installed to ball seat 16 in the left side in the commutation three-way body 15, A is in the left side of threeway outlet 19 to ball seat 16, B is installed to ball seat 17 in the right side in the commutation three-way body 15, B is in the right side of threeway outlet 19 to ball seat 17, A installs steel ball 18 to ball seat 16 and B between ball seat 17, steel ball 18 and A are to ball seat 16 right output port fitted seal, steel ball 18 and B are to ball seat 17 left port fitted seal, A is to ball seat 16, B is a magnetic material to ball seat 16, when pipe nipple 21 is connected with reversal valve housing 1, pipe nipple 21 presses down slide-valve top pawl 6, slide-valve 5, slide-valve 5 moves down closes linked hole 7, slide-valve 5 leaves spool 2, pipe nipple 21 and oil pipe 24 UNICOMs, after slide-valve 5 moves down and cuts out linked hole 7, when oil pipe 24 is descending during sand washing, reversal valve housing 1 is descending with oil pipe 24, linked hole 7 is closed, sand cleaning fluid enters sleeve pipe 25 from big four 23, upwards return out from oil pipe 24 after taking sand, through pipe nipple 21, pipeline 20, B is to ball seat 17, threeway outlet 19 is flowed out, this moment is under liquid stream and magnetic action, steel ball 18 and A are to ball seat 16 right output port fitted seal, after an oil pipe 24 all is lowered to sleeve pipe 25, reversal valve housing 1 on another oil pipe 24 enters in the airtight three-way body 8, as shown in the figure, linked hole 7 is in stripper rubber 11, between the lower seal rubber 12, last stripper rubber 11, lower seal rubber 12 encases reversal valve housing 1 and can form sealing, dismounting pipe nipple 21, pipe nipple 21 loses the constraint to slide-valve top pawl 6, it is up that spring 4 supports slide-valve 5, spool 2 and slide-valve 5 interior shoulder fitted seal, linked hole 7 is opened simultaneously, sand cleaning fluid enters sleeve pipe 25 from big four 23, upwards return out from oil pipe 24 after taking sand, through linked hole 7, A asks ball seat 16, threeway outlet 19 is flowed out, this moment, steel ball 18 and B were to ball seat 16 right output port fitted seal under liquid stream and magnetic action.Constantly be lowered to oil pipe 24 and on reversal valve (as shown in the figure, form by reversal valve housing 1, spool 2, valve seat 3, spring 4, slide-valve 5, slide-valve top pawl 6), sand cleaning fluid is continuously squeezed into from sleeve pipe, load fluid continuously returns out through threeway outlet 19 from pipe nipple 21 or linked hole 7, sand face in the horizontal well just constantly descends, thereby the realization continuous sand flushing is removed the sand setting in the oil-water well.
Pipe nipple 21 is threaded with being connected to of reversal valve housing 1.Pipeline 20 is connected with the oil that is connected to of reversal valve housing 1 and commutation three-way body 15 ninth of the ten Heavenly Stems.Reversal valve housing 1 is threaded with being connected to of oil pipe 24.The clamp connection that is installed as of the airtight three-way body 8 and the three-way body 15 that commutates.
Claims (3)
1. horizontal well continuous sand flushing device, reversal valve housing (1) is arranged, spool (2), valve seat (3), spring (4), slide-valve (5), slide-valve top pawl (6), airtight three-way body (8), last stripper rubber (11), lower seal rubber (12), last rubber gland (13), commutation three-way body (15), A is to ball seat (16), B is to ball seat (17), steel ball (18), threeway outlet (19), pipeline (20), pipe nipple (21), bolt group (22), big four (23), oil pipe (24), sleeve pipe (25), big four (23) is connected with sleeve pipe (25), airtight three-way body (8) is fixed on the big four (23) by the bolt group, lower seal rubber (12) is installed between airtight three-way body (8) and the big four (23), last rubber gland (13) is fixed on the airtight three-way body (8) by bolt group (22), install stripper rubber (11) between last rubber gland (13) and the airtight three-way body (8), reversal valve housing (1) is in the airtight three-way body (8), last stripper rubber (11), lower seal rubber (12) encases reversal valve housing (1), linked hole (7) is arranged on the reversal valve housing (1), linked hole (7) is in stripper rubber (11) when connecting oil pipe, between the lower seal rubber (12), reversal valve housing (1) bottom is connected with oil pipe (24), it is characterized in that: spool (2) is installed in the reversal valve housing (1), valve seat (3), spring (4), slide-valve (5), slide-valve top pawl (6), spool (2) is connected with valve seat (3), valve seat (3) is fixed in the reversal valve housing (1), spool (2) penetrates in the slide-valve (5) and the interior shoulder fitted seal of slide-valve (5), slide-valve (5) is supported by spring (4), slide-valve top pawl (6) is arranged at slide-valve (5) top, slide-valve (5) can slide in reversal valve housing (1), linked hole (7) is opened or closed, outlet (14) on the airtight three-way body (8) is connected with commutation three-way body (15), commutation three-way body (15) has threeway outlet (19), the outlet of commutation three-way body (15) right-hand member is connected with pipe nipple (21) with pipeline (20), A is installed to ball seat (16) in the left side in the commutation three-way body (15), A is in the left side of threeway outlet (19) to ball seat (16), B is installed to ball seat (17) in the interior right side of commutation three-way body (15), B is in the right side of threeway outlet (19) to ball seat (17), A installs steel ball (18) to ball seat (16) and B between ball seat (17), steel ball (18) and A are to ball seat (16) right output port fitted seal, steel ball (18) and B are to ball seat (17) left port fitted seal, pipe nipple (21) and reversal valve housing (1) are when being connected, pipe nipple (21) presses down slide-valve top pawl (6), slide-valve (5), slide-valve (5) moves down closes linked hole (7), slide-valve (5) leaves spool (2), pipe nipple (21) and oil pipe (24) UNICOM, after slide-valve (5) moves down and cuts out linked hole (7), when oil pipe during sand washing (24) is descending, reversal valve housing (1) is descending with oil pipe (24), linked hole (7) is closed, sand cleaning fluid enters sleeve pipe (25) from big four (23), upwards return out from oil pipe (24) after taking sand, through pipe nipple (21), pipeline (20), B is to ball seat (17), threeway outlet (19) is flowed out, this moment is under the effect of liquid stream, steel ball (18) and A are to ball seat (16) right output port fitted seal, after an oil pipe (24) all is lowered to sleeve pipe (25), reversal valve housing (1) on another oil pipe (24) enters in the airtight three-way body (8), linked hole (7) is in stripper rubber (11), between the lower seal rubber (12), dismounting pipe nipple (21), pipe nipple (21) loses the constraint to slide-valve top pawl (6), it is up that spring (4) supports slide-valve (5), spool (2) and the interior shoulder fitted seal of slide-valve (5), linked hole (7) is opened simultaneously, sand cleaning fluid enters sleeve pipe (25) from big four (23), upwards return out from oil pipe (24) after taking sand, through linked hole (7), A is to ball seat (16), threeway outlet (19) is flowed out, this moment, steel ball (18) and B were to ball seat (16) right output port fitted seal under the effect of liquid stream.
2. horizontal well continuous sand flushing device according to claim 1 is characterized in that: go up between stripper rubber (11) and the last rubber gland (13) and install steel ring (9), between lower seal rubber (12) and the big four (23) lower steel ring (10) is installed.
3. horizontal well continuous sand flushing device according to claim 1 is characterized in that: A is magnetic material to ball seat (16), B to ball seat (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101106147A CN102146776A (en) | 2010-02-09 | 2010-02-09 | Continuous sand washing device for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101106147A CN102146776A (en) | 2010-02-09 | 2010-02-09 | Continuous sand washing device for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102146776A true CN102146776A (en) | 2011-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101106147A Pending CN102146776A (en) | 2010-02-09 | 2010-02-09 | Continuous sand washing device for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102146776A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383750A (en) * | 2011-09-28 | 2012-03-21 | 张作阳 | Continuous positive and negative integrated sand washing device for oil well |
| CN103470199A (en) * | 2013-09-27 | 2013-12-25 | 中国石化江汉油田分公司井下作业处 | Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same |
| CN105625969A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Continuous sand flushing conversion tool |
| CN105804679A (en) * | 2016-02-06 | 2016-07-27 | 高伟时 | Horizontal well shaft processing process tubing string device for realizing continuous circulation by ordinary oil pipe |
-
2010
- 2010-02-09 CN CN2010101106147A patent/CN102146776A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383750A (en) * | 2011-09-28 | 2012-03-21 | 张作阳 | Continuous positive and negative integrated sand washing device for oil well |
| CN102383750B (en) * | 2011-09-28 | 2014-04-02 | 张作阳 | Continuous positive and negative integrated sand washing device for oil well |
| CN103470199A (en) * | 2013-09-27 | 2013-12-25 | 中国石化江汉油田分公司井下作业处 | Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same |
| CN105625969A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Continuous sand flushing conversion tool |
| CN105804679A (en) * | 2016-02-06 | 2016-07-27 | 高伟时 | Horizontal well shaft processing process tubing string device for realizing continuous circulation by ordinary oil pipe |
| CN105804679B (en) * | 2016-02-06 | 2018-05-08 | 高伟时 | Continuously circulating water horizontal well wellbore treatments process pipe string device is realized using plain tubing |
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Application publication date: 20110810 |