CN2165264Y - Hollow screw oil pump - Google Patents
Hollow screw oil pump Download PDFInfo
- Publication number
- CN2165264Y CN2165264Y CN 93220390 CN93220390U CN2165264Y CN 2165264 Y CN2165264 Y CN 2165264Y CN 93220390 CN93220390 CN 93220390 CN 93220390 U CN93220390 U CN 93220390U CN 2165264 Y CN2165264 Y CN 2165264Y
- Authority
- CN
- China
- Prior art keywords
- oil
- hollow screw
- rotor
- pump
- screw rod
- 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 - Lifetime
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Abstract
The utility model relates to a hollow screw rod oil pump which is improved on the basis of the prior art. The utility model is provided with a hollow screw rod rotor. The oil pump comprises an upper joint 1, a lower joint 2, a rubber stator 4 and a rubber rotor 5 which are respectively provided with a metal casing 3, wherein, the center of the rotor is provided with a through hole 6. The hollow screw rod oil pump of the utility model has simple structure, and has the advantages that a logging instrument can be directly lowered into an oil layer by passing through a hollow screw rod, so that various data can be measured accurately; a heating cable can be directly lowered into the oil layer part by passing through the hollow screw rod, and can solve the problems that thick oil is difficult to get into the pump, flow paths can be blocked, etc.
Description
The utility model relates to a kind of cored screw oil well pump with ground lifting fluid that rest on the ground from depths lifting fluid, particularly driving machine, belongs to a kind of oil field equipment.
The screw pump of prior art is by upper and lower joint, the elastomer stator and the rotor of band metal shell are formed, the motivational drive rotor rotation, carry out pump oil according to spiral helicine rotor and cooperatively interacting of stator, belong to a kind of conventional equipment in the oil recovery machiner of oil field, at present in the viscous crude in China oil field, height is moisture, height contains the sand oil well exploitation, obtain general application, but there is following problem in this equipment:
Because the pump housing external diameter of the screw pump that is lowered in sleeve pipe is bigger, the downhole testing instrument can't pass through from the annular space between sleeve pipe and the tubing string, therefore, and the down-hole formation parameter testing difficulty of its employed oil well;
Use the conventional screw pump in thick oil well and high waxy oil well, exist viscous crude to advance the pump difficulty, wax deposition is stopped up problems such as runner, and moment of torsion increases accidents such as causing rod parting easily during starting.
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of cored screw oil well pump is provided, and it can normal operation under complex conditions such as deep-well, inclined shaft, thick oil well, high wax containing well, and the various parameters that can test oil reservoir exactly, improves tar productivity.
Technical solution of the present utility model is to produce a hollow passageway in the rotor of conventional screw pump, logging instrument can be from wherein by carrying out the test of the various parameters of oil well, for thick oil well, heating cable or steam also can therefrom pass through, and can carry out viscosity reduction, wax removal, steam soak operation.Cored screw oil well pump of the present utility model is with the elastomer stator of metal shell by upper and lower joint, and rotor is formed, and wherein centre of rotor has a through hole.
Cored screw oil well pump of the present utility model, simple and reasonable for structure, easy to manufacture, logger can directly descend in oil reservoir from cored screw, and logging equipment is simple, and technology is reliable, and test data is accurate, and instrument pulling success rate height is applied widely; In cored screw, be lowered to heating cable, can be directly down to the oil reservoir position, viscosity reduction, wax removal are effective, can solve viscous crude and advance problems such as pump difficulty and runner obstruction, add ratio of specific heat with oil pipe, job execution is simple, thermal efficiency height; This equipment is used in the steam incoming and outcoming thickened oil recovery, can inject steam to the central passage at cored screw place by ground, during oil recovery by the central passage oil flow production, starting screw pump again after strata pressure reduces recovers the oil, thereby realize that gas injection, blowing, oil pump tubular column once finish, simplify thickened oil recovery technology, construction operation is simple.
For introducing cored screw oil well pump of the present utility model in detail, be elaborated below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of cored screw oil well pump of the present utility model;
Fig. 2 is the schematic representation of cored screw oil well pump of the present utility model when carrying out logging operation;
To be cored screw oil well pump of the present utility model carrying out the schematic representation of oil well when adding hot work to Fig. 3.
Referring to Fig. 1,2, cored screw oil well pump of the present utility model improves on the basis of existing technology and forms, screw rotor of the present utility model is hollow,, this oil well pump comprises upper connection 1, lower contact 2, elastomer stator 4, the rotor 5 of band metal shell 3, centre of rotor has a through hole 6.One sealing is housed on the through hole, and to close 14 its structures identical with structure of the prior art.
Referring to Fig. 2, when logging operation, logging instrument 8 is lowered to from the hollow polished rod 7 of oil well in the test carriage 9, passes hollow rod, i.e. through hole 6 in the cored screw oil well pump rotor 5 can be measured the various parameters such as pressure, temperature at oil reservoir middle part.
Referring to Fig. 3, when using the utility model oil producing operation, oil field heating cable 10 can be lowered to the rotor through hole 6 of screw pump by hollow polished rod 7, enter in the following tail pipe cable joining 11 of rotor, well head electricity consumption slip contactor 12 links to each other with ground electric closet 13, give heating cable 10 heating when ground electric closet 13 send electricity, cable can begin heating from the screw pump lower end, makes viscous crude enter pump smoothly and is lifted to ground.
Claims (2)
1, a kind of cored screw oil well pump is made up of upper connection, lower contact, the elastomer stator of band metal shell, rotor, and it is characterized in that: above-mentioned centre of rotor has a through hole.
2, cored screw oil well pump according to claim 1 is characterized in that being equipped with on the above-mentioned through hole sealing and closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93220390 CN2165264Y (en) | 1993-08-03 | 1993-08-03 | Hollow screw oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93220390 CN2165264Y (en) | 1993-08-03 | 1993-08-03 | Hollow screw oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2165264Y true CN2165264Y (en) | 1994-05-18 |
Family
ID=33799543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93220390 Expired - Lifetime CN2165264Y (en) | 1993-08-03 | 1993-08-03 | Hollow screw oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2165264Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363617C (en) * | 2004-09-22 | 2008-01-23 | 贺波 | Scrow oil pumping pump |
| CN103362480A (en) * | 2012-04-10 | 2013-10-23 | 中国石油化工股份有限公司 | Laminated spiral lifting equipment and technology |
| CN106194136A (en) * | 2016-08-29 | 2016-12-07 | 王国良 | A kind of screw pump oil production device with heating arrangements under pump and oil production method thereof |
| CN106337805A (en) * | 2016-11-02 | 2017-01-18 | 王国良 | Full-bore hollow-core rotor screw pump |
| CN110056329A (en) * | 2019-05-12 | 2019-07-26 | 东北石油大学 | A kind of flow-disturbing paraffin cutting screw device for rod pumped well |
-
1993
- 1993-08-03 CN CN 93220390 patent/CN2165264Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363617C (en) * | 2004-09-22 | 2008-01-23 | 贺波 | Scrow oil pumping pump |
| CN103362480A (en) * | 2012-04-10 | 2013-10-23 | 中国石油化工股份有限公司 | Laminated spiral lifting equipment and technology |
| CN106194136A (en) * | 2016-08-29 | 2016-12-07 | 王国良 | A kind of screw pump oil production device with heating arrangements under pump and oil production method thereof |
| CN106194136B (en) * | 2016-08-29 | 2019-01-22 | 王国良 | A kind of screw pump oil production device and its oil production method with pump lower heating mechanism |
| CN106337805A (en) * | 2016-11-02 | 2017-01-18 | 王国良 | Full-bore hollow-core rotor screw pump |
| CN110056329A (en) * | 2019-05-12 | 2019-07-26 | 东北石油大学 | A kind of flow-disturbing paraffin cutting screw device for rod pumped well |
| CN110056329B (en) * | 2019-05-12 | 2021-02-26 | 东北石油大学 | Turbulent flow wax scraping screw device for sucker-rod pump well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |