CN205172478U - Spiral washes instrument in pit - Google Patents
Spiral washes instrument in pit Download PDFInfo
- Publication number
- CN205172478U CN205172478U CN201520688437.9U CN201520688437U CN205172478U CN 205172478 U CN205172478 U CN 205172478U CN 201520688437 U CN201520688437 U CN 201520688437U CN 205172478 U CN205172478 U CN 205172478U
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Abstract
The utility model provides a spiral washes instrument in pit, includes cylindrical instrument main part, the instrument main part is provided with fluid passage, fluid passage ab intra outwards divide into linkage segment, water conservancy diversion section, guide section and sprays the section, the linkage segment is provided with the internal thread, the water conservancy diversion section is cylindric, wherein installs rotatable screw rod, the axial is provided with spiral guide groove on the screw rod, guide section internal diameter ab intra outwards reduces gradually, spray the section and be provided with the installation counter bore, be equipped with the nozzle in the installation counter bore admittedly. Spiral washes instrument in pit simple structure, itself can not rotate, need not install bearing and sealing member, and direct female connection sand washing pipe cluster through the linkage segment can use, and the dismouting is easy, maintains easily and maintains, and is with low costs, and the economical and practical type is strong. Through the rotatory whirl that produces of screw rod, required discharge is little, and the whirl of production can cover set inside pipe wall totally, and washing effect is good, has also greatly improved and has washed efficiency, has reduced the water consumption, has practiced thrift and has washed the cost.
Description
Technical field
The utility model relates to Oil/gas Well downhole tool, specifically, is a kind of Underground Spiral flushing tool.
Background technology
Perforating job is set up in sleeve pipe and the routine work mode of passage between reservoir, and aborning, after well-case perforating, horizontal well oil reservoir phenomenon of shaking out is serious, and passage is produced in blocking, affects crude output.Common method utilizes the desanding of coiled tubing band flushing tool well-flushing, in prior art, spin rinse instrument is in order to manufacture rotational flow flushing effect, mostly that tool belt multiinjector rotates together, rotated by nozzle and manufacture eddy flow, need bearing and seal etc. are installed, complex structure, instrument cost is high, and scene not easily installation and maintenance.Multiple nozzle installed by instrument, and increase complex structure degree, in operation, fluid frictional resistance in instrument is larger, reduces operating efficiency, adds construction risk, and needs to ensure larger infusion amount, could manufacture the developing result needed.
Utility model content
The deficiency that the utility model exists for above-mentioned prior art, devises a kind of Underground Spiral flushing tool.
Underground Spiral flushing tool of the present utility model, comprises the tool body of column, and described tool body is provided with fluid passage, and described fluid passage is divided into linkage section, diversion section, boot segment and jet segment from inside to outside, and described linkage section is provided with internal thread; Described diversion section is cylindric, is wherein provided with rotatable screw rod, and described screw rod is axially provided with spiral stream guidance groove; Described boot segment internal diameter reduces from inside to outside gradually; Described jet segment is provided with installation counterbore, installs in counterbore and is fixed with nozzle.
Preferably, described boot segment is provided with inner conical surface, and the angle of described inner conical surface and tool body radial direction is 15 ° ~ 75 °.
Preferably, the internal diameter of spray orifice the inner of described nozzle setting is identical with the internal diameter of boot segment outer end.
The beneficial effects of the utility model are: Underground Spiral flushing tool structure is simple, and itself can not rotate, and do not need to install bearing and seal, directly connect sand clean out pipe string by the internal thread of linkage section can use, easy disassembling, easily maintenance and maintenance, cost is low, and economical and practical type is strong.Rotated by screw rod and produce eddy flow, required discharge is little, and the eddy flow of generation can overlapping casing tube inwall completely, and developing result is good, also greatly improves flush efficiency, reduces water supply volume, has saved developing cost.
The angle of boot segment inner conical surface, makes current accelerate, and accelerates to enough speed, ensures the developing result of rinsing current.Spray orifice is inner identical with boot segment outer end size, and when avoiding current to flow between, current are stopped or produce sinuous flow, ensures flow velocity and the eddy flow of current, can reach good developing result.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of Underground Spiral flushing tool;
Accompanying drawing 2 is the structural representation of screw rod.
Detailed description of the invention
In order to understand structure of the present utility model, feature and other object further, the appended preferred embodiment of existing combination is described in detail as follows, and illustrated preferred embodiment is only for illustration of the technical solution of the utility model, and non-limiting the utility model.
Detailed description of the invention of the present utility model is as follows:
As shown in Figure 1, this Underground Spiral flushing tool, comprise the tool body 1 of column, tool body 1 is provided with fluid passage 2.
Fluid passage is divided into linkage section 3, diversion section 4, boot segment 5 and jet segment 6 from inside to outside.
Linkage section 3 is provided with internal thread; Diversion section 4 is cylindric, is wherein provided with rotatable screw rod 7, and screw rod 7 is axially provided with spiral stream guidance groove 8; Boot segment 5 internal diameter reduces from inside to outside gradually; Jet segment 6 is provided with installation counterbore, installs in counterbore and is fixed with nozzle 9.
During use, tool body 1 is installed to the end of sand clean out pipe string by the internal thread of linkage section 3, sand clean out pipe string supplies water in the fluid passage 2 of tool body 1, current enter in diversion section 4, and flow along the spiral stream guidance groove 8 of screw rod 7, drive screw rod 7 to rotate, and make current form eddy flow.The current forming eddy flow continue through boot segment 5, and directed section 5 is accelerated, and the nozzle 9 finally by jet segment 6 sprays, and the current of nozzle ejection form the High Rotation Speed jet of radial dilatation, make most water impact to internal surface of sleeve pipe, rinse the long-pending sand in pipe box.
Boot segment 5 can arrange inner conical surface 10, and inner conical surface 10 can be set as 15 ° ~ 75 ° with the angle of tool body 1 radial direction, enables current accelerate to enough speed, can long-pending sand in strong irrigating sleeve, ensures the developing result of rinsing current.
The internal diameter of nozzle 9 spray orifice the inner is identical with the internal diameter of boot segment 5 outer end, being slowed down, even producing sinuous flow when avoiding current to flow between by stopping, ensures flow velocity and the eddy flow of current, can reach good developing result.
Claims (3)
1. a Underground Spiral flushing tool, it is characterized in that, comprise the tool body (1) of column, described tool body (1) is provided with fluid passage (2), described fluid passage is divided into linkage section (3), diversion section (4), boot segment (5) and jet segment (6) from inside to outside, and described linkage section (3) is provided with internal thread; Described diversion section (4), for cylindric, is wherein provided with rotatable screw rod (7), and described screw rod (7) is upper is axially provided with spiral stream guidance groove (8); Described boot segment (5) internal diameter reduces from inside to outside gradually; Described jet segment (6) is provided with installation counterbore, installs in counterbore and is fixed with nozzle (9).
2. Underground Spiral flushing tool according to claim 1, it is characterized in that, described boot segment (5) is provided with inner conical surface (10), and described inner conical surface (10) is 15 ° ~ 75 ° with the angle of tool body (1) radial direction.
3. Underground Spiral flushing tool according to claim 1, is characterized in that, the internal diameter of spray orifice the inner that described nozzle (9) is arranged is identical with the internal diameter of boot segment (5) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688437.9U CN205172478U (en) | 2015-09-08 | 2015-09-08 | Spiral washes instrument in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688437.9U CN205172478U (en) | 2015-09-08 | 2015-09-08 | Spiral washes instrument in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172478U true CN205172478U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520688437.9U Expired - Fee Related CN205172478U (en) | 2015-09-08 | 2015-09-08 | Spiral washes instrument in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205172478U (en) |
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| CN106285527A (en) * | 2016-10-27 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of Double helix flushing tool |
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2015
- 2015-09-08 CN CN201520688437.9U patent/CN205172478U/en not_active Expired - Fee Related
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