CN101725513A - Soft piston type submerged pump - Google Patents
Soft piston type submerged pump Download PDFInfo
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- CN101725513A CN101725513A CN200910224493A CN200910224493A CN101725513A CN 101725513 A CN101725513 A CN 101725513A CN 200910224493 A CN200910224493 A CN 200910224493A CN 200910224493 A CN200910224493 A CN 200910224493A CN 101725513 A CN101725513 A CN 101725513A
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Abstract
The invention relates to a soft piston type submerged pump which mainly solves the problems of complex structure of the traditional oil pumping pumps and high failure rate in run time. The soft piston type submerged pump is characterized in that a pump cylinder (1) is divided to two chambers by a clapboard (2); a hydraulic pump (4) connected with a motor (3) is fixed at the lower end of the pump cylinder (1); a liquid inlet and a liquid outlet of the hydraulic pump (4) are respectively communicated with the two chambers of the pump cylinder (1); a transmission medium (5) with a specific gravity larger than a underground oil-water mixture is arranged in the two chambers of the pump cylinder (1); and liquid inlet holding valves (6) and liquid outlet holding valves (7) are all arranged on the upper parts of the two chambers of the pump cylinder (1). The soft piston type submerged pump has the characteristics of fewer moving parts, simple structure, low failure rate, low running cost, safety and reliability.
Description
Technical field:
The present invention relates to a kind of crude oil lift device, especially soft piston type submerged pump in the oil recovery field, oil field.
Background technique:
In oil recovery field, oil field, oil well pump is main crude oil lift device, and the working principle of existing oil well pump is to utilize plunger to-and-fro motion pumping down-hole liquid, mainly is made up of pump barrel, plunger etc., higher Spielpassung precision is arranged, the processing cost height between pump barrel and the plunger.Realize that the plunger to-and-fro motion needs power source and ground installation, the corollary equipment cost is higher, and the down-hole moving element is many, complex structure, and raw materials consumption is big, run time fault rate height.
Summary of the invention:
In order to solve existing oil well pump complex structure and the high problem of run time fault rate, the invention provides a kind of soft piston type submerged pump, this soft piston type submerged pump moving element is few, have simple in structure, rate of fault is low, operating cost is low and safe and reliable characteristics.
Technological scheme of the present invention is: this soft piston type submerged pump comprises pump barrel, the pump barrel upper end connects oil pipe, pump barrel is separated into 2 chambers by dividing plate, the lower end of pump barrel is fixed with the oil hydraulic pump that is connected with motor, the liquid inlet and outlet of oil hydraulic pump communicates with 2 chambers of pump barrel respectively, and the conduction circle matter of proportion greater than the underground oil-water mixture is arranged in 2 chambers of pump barrel; 2 chamber tops of pump barrel all are equipped with feed liquor one-way valve and fluid one-way valve.
Described conduction circle matter is mercury.
Be equipped with the float type limited valve in 2 chambers of described pump barrel, the float type limited valve is below the feed liquor one-way valve.
Be equipped with upper and lower liquid level sensor in 2 chambers of described pump barrel.
The present invention has following beneficial effect: owing to take such scheme, motor is by clockwise and anticlockwise, the rotation of drive oil hydraulic pump, oil hydraulic pump sucks conduction circle matter from a side cavity of pump barrel, discharges from the opposite side chamber of pump barrel then, conduction circle matter promotes down-hole liquid and rises, enter oil pipe, the to-and-fro motion of conduction circle matter is similar to the to-and-fro motion of plunger, because the matter employing of conduction circle is liquid medium, thereby conduction circle matter forms " soft plunger ", the lifting of realization down-hole liquid.This action that moves in circles can make down-hole liquid constantly be given rise to ground.This soft piston type submerged pump is compared durable in use, simple in structure with existing oil well pump, rate of fault is low, and operating cost is low, and is safe and reliable.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention.
1-pump barrel among the figure, 2-dividing plate, 3-motor, 4-oil hydraulic pump, 5-conduction circle matter, 6-feed liquor one-way valve, 7-fluid one-way valve, 8-float type limited valve, 9-oil pipe, the last liquid level sensor of 10-, liquid level sensor under the 11-.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing:
By shown in Figure 1, this soft piston type submerged pump comprises pump barrel 1, pump barrel 1 upper end connects oil pipe 9, pump barrel 1 is separated into 2 chambers by dividing plate 2, the lower end of pump barrel 1 is fixed with the oil hydraulic pump 4 that is connected with motor 3, the liquid inlet and outlet of oil hydraulic pump 4 communicates with 2 chambers of pump barrel 1 respectively, and the conduction circle matter 5 of proportion greater than the underground oil-water mixture is arranged in 2 chambers of pump barrel 1, and present embodiment conduction circle matter 5 is selected mercury for use.2 chamber tops of pump barrel 1 all are equipped with feed liquor one-way valve 6 and fluid one-way valve 7.
Be equipped with float type limited valve 8 in 2 chambers of described pump barrel 1, float type limited valve 8 is below feed liquor one-way valve 6.Float type is spacing, and to cut down 8 be to make with the different specific weight material, available nonmetallic material, and also available metal material, main effect is the upper limit height and the lower limit height of restriction conduction circle matter 5.
Be equipped with upper and lower liquid level sensor (10,11) in 2 chambers of described pump barrel 1.Upper and lower liquid level sensor (10,11) links to each other with surface power supply equipment, realize motor 3 commutations and can with the time-controller co-operation.
During actual the use, motor 3 is by clockwise and anticlockwise, drive oil hydraulic pump 4 rotations, oil hydraulic pump 4 sucks conduction circle matter 5 from a side cavity of pump barrel 1, discharge from the opposite side chamber of pump barrel 1 then, conduction circle matter 5 promotes down-hole liquid and rises, enter oil pipe 9, commutate by selector valve, conduction circle matter 5 can realize to-and-fro motion, and the to-and-fro motion of conduction circle matter 5 is similar to the to-and-fro motion of plunger, because matter 5 employings of conduction circle is liquid medium, thereby conduction circle matter 5 forms " soft plunger ", the lifting of realization down-hole liquid.This action that moves in circles can make down-hole liquid constantly be given rise to ground.Compared with prior art, the present invention adopts conduction circle matter 5 to substitute plunger of the prior art, and surface friction drag is less, cancelled black box, power loss is little, and this soft piston type submerged pump is compared with existing oil well pump, adopted conduction circle matter 5 to substitute plunger of the prior art, surface friction drag is less, has cancelled black box, power loss is little, durable in use, simple in structure, rate of fault is low, operating cost is low, and is safe and reliable.
Claims (4)
1. soft piston type submerged pump, comprise pump barrel (1), pump barrel (1) upper end connects oil pipe (9), it is characterized in that: pump barrel (1) is separated into 2 chambers by dividing plate (2), the lower end of pump barrel (1) is fixed with the oil hydraulic pump (4) that is connected with motor (3), the liquid inlet and outlet of oil hydraulic pump (4) communicates with 2 chambers of pump barrel (1) respectively, and the conduction circle matter (5) of proportion greater than the underground oil-water mixture is arranged in 2 chambers of pump barrel (1); 2 chamber tops of pump barrel (1) all are equipped with feed liquor one-way valve (6) and fluid one-way valve (7).
2. soft piston type submerged pump according to claim 1 is characterized in that: conduction circle's matter (5) is mercury.
3. soft piston type submerged pump according to claim 1 and 2 is characterized in that: be equipped with float type limited valve (8) in 2 chambers of pump barrel (1), float type limited valve (8) is in the below of feed liquor one-way valve (6).
4. soft piston type submerged pump according to claim 1 and 2 is characterized in that: be equipped with upper and lower liquid level sensor (10,11) in 2 chambers of pump barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910224493A CN101725513A (en) | 2009-06-25 | 2009-11-24 | Soft piston type submerged pump |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920153140.7 | 2009-06-25 | ||
| CN200910224493A CN101725513A (en) | 2009-06-25 | 2009-11-24 | Soft piston type submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101725513A true CN101725513A (en) | 2010-06-09 |
Family
ID=42446932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910224493A Pending CN101725513A (en) | 2009-06-25 | 2009-11-24 | Soft piston type submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101725513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703726A (en) * | 2023-12-28 | 2024-03-15 | 湖北油气钻采装备产业技术研究院有限责任公司 | Hydraulic drive automatic reciprocating deep mining pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2044482A5 (en) * | 1969-05-22 | 1971-02-19 | Commissariat Energie Atomique | Automatic pump utilising liquid piston |
| CN2338511Y (en) * | 1998-01-12 | 1999-09-15 | 刘喜明 | Tubular soft plunger well pump |
| CN2549206Y (en) * | 2002-06-07 | 2003-05-07 | 中国石油天然气股份有限公司 | Soft plunger sand-settling-resistant pump |
| CN2886129Y (en) * | 2004-11-23 | 2007-04-04 | 欧连贵 | Self-complementing type flexible sealing float-spacer sand-prevention pump |
-
2009
- 2009-11-24 CN CN200910224493A patent/CN101725513A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2044482A5 (en) * | 1969-05-22 | 1971-02-19 | Commissariat Energie Atomique | Automatic pump utilising liquid piston |
| CN2338511Y (en) * | 1998-01-12 | 1999-09-15 | 刘喜明 | Tubular soft plunger well pump |
| CN2549206Y (en) * | 2002-06-07 | 2003-05-07 | 中国石油天然气股份有限公司 | Soft plunger sand-settling-resistant pump |
| CN2886129Y (en) * | 2004-11-23 | 2007-04-04 | 欧连贵 | Self-complementing type flexible sealing float-spacer sand-prevention pump |
Non-Patent Citations (1)
| Title |
|---|
| 李博: "自补偿式软柱塞泵的研制与应用", 《特种油气藏》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703726A (en) * | 2023-12-28 | 2024-03-15 | 湖北油气钻采装备产业技术研究院有限责任公司 | Hydraulic drive automatic reciprocating deep mining pump |
| CN117703726B (en) * | 2023-12-28 | 2024-06-04 | 湖北油气钻采装备产业技术研究院有限责任公司 | Hydraulic drive automatic reciprocating deep mining pump |
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| C10 | Entry into substantive examination | ||
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| DD01 | Delivery of document by public notice |
Addressee: Dan Xin Document name: the First Notification of an Office Action |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100609 |