CN2572054Y - Hydraulic screw pump - Google Patents
Hydraulic screw pump Download PDFInfo
- Publication number
- CN2572054Y CN2572054Y CN 02254322 CN02254322U CN2572054Y CN 2572054 Y CN2572054 Y CN 2572054Y CN 02254322 CN02254322 CN 02254322 CN 02254322 U CN02254322 U CN 02254322U CN 2572054 Y CN2572054 Y CN 2572054Y
- Authority
- CN
- China
- Prior art keywords
- screw pump
- hydraulic motor
- screw rod
- rod pump
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lubricants (AREA)
Abstract
The utility model relates to a hydraulic screw rod pump, which is characterized in that a hydraulic motor 2 is connected with a stator of a screw rod pump 5 by a checkered pipe 4. A power output axle of the hydraulic motor 2 is simultaneously connected with a rotor of the screw rod pump 5 by an axle connecting device 3 and a sealing device 6 is connected with the lower surface of the screw rod pump 5. The utility model has the advantages of reasonable structural design, simple manufacture and processing, stable and reliable operation, convenient maintenance, superior performance and strong adaptability and can be widely used for various oil wells. The utility model has the obvious characteristics of wide well depth applying ranges, long maintenance period, adjustable pumping rotating speed, corrosion resistance, abrasion resistance, etc.
Description
Technical field: the utility model relates to a kind of oil field downhole hardware, especially for the fluid power screw pump of oil well oil-pumping.
Technical background: before the utility model, oil field down-hole oil production screw pump commonly used mostly is ground surface driving, and power drives the subsurface progressive cavity rotor by beam hanger, and down-hole liquid is risen to ground; Also have motor by retarder or directly directly be connected the back G.I.H, form the screw pump of latent oily formula with screw pump.The screw pump of ground surface driving is because complex structure, maintenance difficult, cost of production height, poor reliability in the practical application, and depth of setting is restricted; The screw pump of the oily formula of diving has been owing to increased the retarder that coupling connects, and makes that cost of production obviously rises, maintenance difficulty strengthens, and also can increase the generation of down-hole accident; And adopt motor and the direct-connected mode of screw rod, and higher owing to rotating speed, can increase the wearing and tearing of screw pump again and shorten its working life.
Summary of the invention: the purpose of this utility model is to provide a kind of fluid power screw pump for oil well production, employing provides high pressure liquid stream to drive subsurface hydraulic motor by ground and drives screw pump work, simple in structure, reliable operation, easy to maintenance, long service life, the depth of setting scope is big, and can adjust running parameter by ground.
The purpose of this utility model realizes by following measure: a kind of fluid power screw pump, comprise oil hydraulic motor, shaft joint, screw pump and packet etc., it is characterized in that oil hydraulic motor has an open-work by tube wall short tubular floral tube is connected with the stator of screw pump, simultaneously the pto of oil hydraulic motor is connected with the rotor of screw pump by shaft joint, connects packet below the screw pump.
The utility model reasonable in design, make that processing is easy, working stability reliable, it is easy to maintenance to use, superior performance, adaptability are strong, can be widely used in all kinds of oil wells, have and use that the well depth scope is wide, service cycle is long, pump revolution is adjustable, and corrosion protection, outstanding feature such as anti-wear.
Description of drawings: Fig. 1 is the structural representation of fluid power screw pump.
The fluid power screw pump is made up of oil hydraulic motor 2, shaft joint 3, screw pump 5, packet 6, floral tube 4 etc., oil hydraulic motor 2 has open-work by tube wall short tubular floral tube 4 is connected with the stator of screw pump 5, the pto of oil hydraulic motor 2 is connected by the rotor of shaft joint 3 with screw pump 5 simultaneously, the screw pump 5 following packets 6 that connect.
Embodiment: the using method and the working principle of fluid power screw pump are, elder generation assembles it and is connected precalculated position under the lower going-into-well with tubing string 1, discharge packet 6 shutoff oil sets annular spaces again, inject high pressure liquid stream and enter oil hydraulic motor 2 from well head then by tubing string 1, oil hydraulic motor 2 just can drive screw pump 5 rotations under high pressure liquid stream drives, liquid below the screw pump 5 is extracted out, and the liquid stream of discharging with oil hydraulic motor 2 lower ends from its upper end together the open-work from floral tube 4 tube walls flow into oil sets annular space, until returning ground; Because the revolution of oil hydraulic motor 2 is the control that is subjected to the high pressure liquid stream pressure that entered, therefore just can adjust the running parameter of subsurface progressive cavity 5 by high pressure liquid stream on ground.
Claims (1)
1, a kind of fluid power screw pump, comprise oil hydraulic motor, shaft joint, screw pump and packet etc., it is characterized in that: oil hydraulic motor has open-work by tube wall short tubular floral tube is connected with the stator of screw pump, and the pto of oil hydraulic motor is connected with the rotor of screw pump by shaft joint simultaneously; Connect packet below the screw pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02254322 CN2572054Y (en) | 2002-09-13 | 2002-09-13 | Hydraulic screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02254322 CN2572054Y (en) | 2002-09-13 | 2002-09-13 | Hydraulic screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572054Y true CN2572054Y (en) | 2003-09-10 |
Family
ID=33723198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02254322 Expired - Fee Related CN2572054Y (en) | 2002-09-13 | 2002-09-13 | Hydraulic screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572054Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225738B (en) * | 2008-02-19 | 2012-09-26 | 盘锦三阳石油科技发展有限公司 | Oil field down-hole rotary type mechanical transmission means |
| CN103423064A (en) * | 2013-08-29 | 2013-12-04 | 中矿瑞杰(北京)科技有限公司 | Hydraulic motor |
-
2002
- 2002-09-13 CN CN 02254322 patent/CN2572054Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225738B (en) * | 2008-02-19 | 2012-09-26 | 盘锦三阳石油科技发展有限公司 | Oil field down-hole rotary type mechanical transmission means |
| CN103423064A (en) * | 2013-08-29 | 2013-12-04 | 中矿瑞杰(北京)科技有限公司 | Hydraulic motor |
| CN103423064B (en) * | 2013-08-29 | 2016-12-28 | 中矿瑞杰(北京)科技有限公司 | A kind of fluid-power motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |