CN2489114Y - Oil pipe pumping type well pump - Google Patents
Oil pipe pumping type well pump Download PDFInfo
- Publication number
- CN2489114Y CN2489114Y CN 01232687 CN01232687U CN2489114Y CN 2489114 Y CN2489114 Y CN 2489114Y CN 01232687 CN01232687 CN 01232687 CN 01232687 U CN01232687 U CN 01232687U CN 2489114 Y CN2489114 Y CN 2489114Y
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- Prior art keywords
- pump
- valve
- piston
- center tube
- oil
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- 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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Abstract
The utility model provides a sucking type oil pump belonging to the technical field of petroleum exploitation, which essentially solves the shortcoming that the former plunger type oil pump can not pass through the underground appliance. The oil pump is characterized in that a pump(2) is internally provided with a center pipe(4). A piston(9) is arranged between the center pipe(4) and the pump(2) and is fixed on the center pipe(4). Moreover, a traveling valve(8) is positioned at exit of a crude oil channel of the piston(9), and the lower end of the pump(2) is connected with a fixed valve(14). By the technology, in the condition of pump working, the utility model can make testing appliance pass through the oil pump to the well bottom so as to test liquid producing condition of the oil layer section by the oil pump and to conduct the completion oil testing of the well as well as performing oil exploitation singly.
Description
The utility model belongs to technical field of petroleum extraction, and it is a kind of equipment that is used for the oil well down-hole, is a kind of oil extraction pump of taking out type.
At present, the oil extraction pump of domestic and international recover petroleum, great majority adopt pumping unit movement sucker rods to pump, and drive the plunger to-and-fro motion simultaneously of down-hole oil production pump, production crude oil.Existing oil extraction pump is made up of institutes such as upper connection, the pump housing, plunger, travelling valve, standing valve and valve seats.Sucker rod passes through from the center hole of upper connection, connects with plunger.
Existing oil extraction pump can satisfy the needs of oil extraction operation as the pump of producing crude oil.If require the band pump to carry out oil well formation testing or band pump test oil reservoir production profile, existing oil extraction pump can't be finished the work of formation testing or test oil reservoir production profile in well.Reason is the plunger that adopts of existing oil extraction pump and travelling valve, standing valve, all is to adopt solid construction, does not have central passage.Any instrument is impossible to arrive predetermined down well placement and carry out test job by plunger and corresponding annex.
The purpose of this utility model is to solve the shortcoming that existing oil extraction pump can not make instrument pass through, and is implemented in the state of oil extraction pump work, and test instrument can pass through oil extraction pump smoothly, and instrument can arrive needs formation testing, carries out the work of oil reservoir producing profile testing.
Oil pipe taking out type oil extraction pump is made up of upper connection, the pump housing, piston, standing valve and travelling valve, and upper connection connects with the pump housing by screw thread.It is characterized in that: center tube is arranged in the pump housing.In the annular space of the center tube and the pump housing piston is arranged.Piston is fixed on the center tube.The crude oil passage is arranged on the piston.Crude oil channel exit at piston has travelling valve.Because this valve moves up and down with center tube, piston, therefore be referred to as travelling valve.Travelling valve is made up of valve, spring and spring seat.The crude oil passage is arranged on the spring seat of travelling valve, and spring seat is fixed on the piston.The pump housing lower end valve that is connected and fixed has the crude oil passage on the standing valve body.Crude oil channel exit on the standing valve body has standing valve.Standing valve also is made up of valve, spring and spring seat, and the crude oil passage is arranged on the spring seat, and spring seat is fixed on the valve body.Seal in order to make between center tube and the valve, crude oil does not flow backwards, and between center tube and valve seal ring is arranged.Seal ring quantity between travelling valve and the upper center tube is 1 to 4, and the seal ring quantity between standing valve and the lower center tube is 1 to 4.
Effect of the present utility model is tangible.Because piston is fixed on the center tube outside, the neutral position of oil extraction pump is empty from top to bottom, is a passage, can pass through test instrument.Oil pipe taking out type oil extraction pump has kept the oil recovery function of oil extraction pump, has increased a kind of specific function.Specific function is under the situation of recovering the oil, and test instrument is by the test position of oil extraction pump arrival down-hole, with the production fluid situation or the oil well completion formation testing of pump test section of reservoir.Can accurately obtain needed data of stimulation of well and data like this.Oil pipe taking out type oil extraction pump has great economic benefit in the oil field development operation.
Piston can connect with rivet with the mode that center tube is fixed.Also can use scyewed joint for easy for installation.Center tube is divided into upper center tube and lower center tube two-part, and outside thread is arranged at the bottom of upper center tube and the top of lower center tube.Internal piston has internal thread.Utilize screw thread piston to be fixed on the intermediate portion of upper center tube and lower center tube.
For install, convenient disassembly, the pump housing is made up of three steel pipes, connects with threaded collar joint between steel pipe and the steel pipe.
For install, convenient disassembly, the spring seat of travelling valve is fixed on the piston with screw thread.
For install, convenient disassembly, the spring seat of standing valve is fixed on the standing valve body with screw thread.
Unobstructed for guaranteeing the oil circuit that crude oil enters in the oil extraction pump, the crude oil passage on the standing valve body is that diameter is 5 to 20 millimeters hole, and the quantity in hole is 4 to 12.
Illustrations is the generalized section of oil pipe taking out type oil extraction pump.Be an embodiment of the present utility model.What arrow was represented is position and the direction that crude oil passes through.
Embodiment:
Oil pipe taking out type oil extraction pump upper connection (1) is used scyewed joint with the pump housing (2).The pump housing (2) is that 90 millimeters steel pipe pipe nipple is formed by three internal diameters, connects with threaded collar joint (3) between pipe nipple and the pipe nipple.The pump housing has center tube in (2), and the external diameter of center tube is 70 millimeters.Center tube is divided into upper center tube (4) and lower center tube (15) two-part, and outside thread is arranged at the top of the bottom of upper center tube (4) and lower center tube (15).There is internal thread piston (9) inside.Utilize screw thread that piston (9) is fixed on the center tube.Piston (9) is arranged in the annular space between the center tube and the pump housing (2).The internal diameter of piston (9) is 70 millimeters, and external diameter is 90 millimeters.Piston has the crude oil passage on (9), and number of channels is 6, and diameter is straight 15 millimeters inclined hole.The internal diameter of the external diameter of piston (9) and the pump housing (2) is slidingly matched.Crude oil channel exit at piston (9) has travelling valve.Travelling valve is made up of valve (8), spring (6) and spring seat (5).The spring seat of travelling valve has the crude oil passage on (5), and spring seat (5) is fixed on the piston (9) with screw thread.Seal ring (7) between valve (8) and the center tube (4) is 2.Valve body (14) is connected and fixed in the pump housing (2) lower end.The standing valve body has the crude oil passage on (14).Crude oil passage on the standing valve body (14) is 8 holes, and the diameter in hole is 15 millimeters.Crude oil channel exit on the standing valve body (14) has standing valve.Standing valve is made up of valve (13), spring (11) and spring seat (10), and spring seat has the crude oil passage on (10), and spring seat (10) is fixed on the valve body (14).The spring seat of standing valve (10) is fixed on the standing valve body (14) with screw thread.Seal ring (12) between valve (13) and the center tube (15) is 2.
The summary working principle has certain benefit to understanding the utility model.When center tube (4) when moving upward, drive piston (9) and move upward, piston (9) bottom produces negative pressure.Crude oil passes through the crude oil passage on the standing valve body (14), and pushes the annular space that standing valve (13) enters the pump housing (2) open.When center tube (4) when moving downward, drive piston (9) and move downward.Piston (9) bottom produces malleation, closes valve (13).Crude oil makes progress by the crude oil passage of piston (9), and pushes the upper annulus that travelling valve (8) arrives the pump housing (2) open.Center tube (4) constantly pumps, and makes imbibition, the discharge opeing of output liquid by pump of down-hole oil reservoir arrive ground.The oil reservoir complexity of down-hole, moisture inequality differs greatly, and need test when oil extraction pump is worked.When original oil extraction pump was worked, instrument can't pass through.Present technique oil pipe taking out type oil extraction pump has center tube (4), and test instrument can pass through oil extraction pump when oil extraction pump is worked, test down-hole section of reservoir production fluid situation.
Claims (6)
1, a kind of taking out type oil extraction pump, be by upper connection (1), the pump housing (2), piston (9), standing valve and travelling valve are formed, upper connection (1) connects with the pump housing (2) by screw thread, it is characterized in that: center tube (4) is arranged in the pump housing (2), piston (9) is arranged in the annular space of the center tube (4) and the pump housing (2), piston (9) is fixed on the center tube (4), piston has the crude oil passage on (9), crude oil channel exit at piston (9) has travelling valve, travelling valve is by valve (8), spring (6) and spring seat (5) are formed, the spring seat of travelling valve has the crude oil passage on (5), spring seat (5) is fixed on the piston (9), the pump housing (2) the lower end valve that is connected and fixed, the standing valve body has the crude oil passage on (14), crude oil channel exit on the standing valve body (14) has standing valve, standing valve is by valve (13), spring (11) and spring seat (10) are formed, spring seat has the crude oil passage on (10), spring seat (10) is fixed on the valve body (14), between center tube and the valve seal ring is arranged, seal ring (7) quantity between travelling valve (8) and the upper center tube (4) is 1 to 4, and seal ring (12) quantity between standing valve (13) and the lower center tube (15) is 1 to 4.
2, taking out type oil extraction pump as claimed in claim 1 is characterized in that: piston (9) is to use scyewed joint with the mode that center tube (4) (15) is fixed, and piston (9) is fixed on the centre of upper center tube (4) and lower center tube (15).
3, taking out type oil extraction pump as claimed in claim 1 or 2 is characterized in that: the pump housing (2) is made up of three steel pipes, connects with threaded collar joint (3) between steel pipe and the steel pipe.
4, taking out type oil extraction pump as claimed in claim 3 is characterized in that: the spring seat of travelling valve (5) is fixed on the piston (9) with screw thread.
5, taking out type oil extraction pump as claimed in claim 3 is characterized in that: the spring seat of standing valve (10) is fixed on the standing valve body (14) with screw thread.
6, taking out type oil extraction pump as claimed in claim 3 is characterized in that: the crude oil passage on the standing valve body (14) is that diameter is 5 to 20 millimeters hole, and quantity is 4 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232687 CN2489114Y (en) | 2001-08-03 | 2001-08-03 | Oil pipe pumping type well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232687 CN2489114Y (en) | 2001-08-03 | 2001-08-03 | Oil pipe pumping type well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2489114Y true CN2489114Y (en) | 2002-05-01 |
Family
ID=33646694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01232687 Expired - Fee Related CN2489114Y (en) | 2001-08-03 | 2001-08-03 | Oil pipe pumping type well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2489114Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306953A (en) * | 2012-03-09 | 2013-09-18 | 长江大学 | Swabbing oil recovery pump with double fixed valves |
| CN103510921A (en) * | 2013-09-27 | 2014-01-15 | 王依明 | Phase-flow hollow draining device |
| CN105604860A (en) * | 2016-01-24 | 2016-05-25 | 况常松 | Environment-friendly and efficient oiling machine energy-saving pump |
| CN105604851A (en) * | 2015-12-18 | 2016-05-25 | 余虹仪 | Petroleum extraction device for oil well |
| CN113756752A (en) * | 2021-07-23 | 2021-12-07 | 长江大学 | A two-stroke swabbing method and oil extraction device |
-
2001
- 2001-08-03 CN CN 01232687 patent/CN2489114Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306953A (en) * | 2012-03-09 | 2013-09-18 | 长江大学 | Swabbing oil recovery pump with double fixed valves |
| CN103510921A (en) * | 2013-09-27 | 2014-01-15 | 王依明 | Phase-flow hollow draining device |
| CN103510921B (en) * | 2013-09-27 | 2016-01-13 | 濮阳市元亨利通石油机械有限公司 | Have and flow hollow pumping equipment mutually |
| CN105604851A (en) * | 2015-12-18 | 2016-05-25 | 余虹仪 | Petroleum extraction device for oil well |
| CN105604860A (en) * | 2016-01-24 | 2016-05-25 | 况常松 | Environment-friendly and efficient oiling machine energy-saving pump |
| CN113756752A (en) * | 2021-07-23 | 2021-12-07 | 长江大学 | A two-stroke swabbing method and oil extraction device |
| CN113756752B (en) * | 2021-07-23 | 2023-05-23 | 长江大学 | Two-stroke swabbing method and oil extraction device |
| US12258949B2 (en) * | 2021-07-23 | 2025-03-25 | Yangtze University | Two-stroke pumping method and oil production device |
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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 |