CN104564625A - Rod-type oil-well pump - Google Patents
Rod-type oil-well pump Download PDFInfo
- Publication number
- CN104564625A CN104564625A CN201410847865.1A CN201410847865A CN104564625A CN 104564625 A CN104564625 A CN 104564625A CN 201410847865 A CN201410847865 A CN 201410847865A CN 104564625 A CN104564625 A CN 104564625A
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- rod
- well pump
- elastic
- center tube
- rail slot
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a rod-type oil-well pump; the rod-type oil-well pump comprises an oil-well pump assembly, an adapter sub, a central pipe, a rubber sleeve, a cone body, an elastic slip, a rail chute, a rail fastener, an elastic friction centralizer assembly, a limit sleeve and a lower joint; the oil-well pump assembly is hermetically connected with one end of the adapter sub; the other end of the adapter sub is hermetically connected with one end of the central pipe; the other end of the central pipe is hermetically connected with one end of the lower joint; the lower joint is provided with the limit sleeve; the outer circumference of the central pipe is sequentially provided with the rubber sleeve, the cone body, the elastic slip and the elastic friction centralizer assembly; the rail fastener is installed on the elastic friction centralizer assembly; the rail chute is installed on the outer circumference of the central pipe; the rail fastener is embedded inside the rail chute. The rod-type oil-well pump has the advantages that the rod-type oil-well pump is a novel rod-type oil-well pump which is able to adjust the pumping depth without taking out or putting in the pipeline; the operation is simple, and the working time is short.
Description
Technical field
The invention belongs to technical field of mechanical oil extraction, relate to a kind of oil extraction in oil field and produce oil well pump, especially relate to a kind of rod-type pumping unit.
Background technique
Rod-type pumping unit can be overall with entering under sucker rod in oil pipe, and pump detection and workover can not carry oil pipe, and pump barrel is stressed less, is particularly useful for deeply taking out, for inclined shaft and containing sand and the larger oil well of viscosity also more applicable, be therefore able to extensive use in each oil field.The means of fixation of existing rod-type pumping unit mainly installs orientation spool stationary positioned on oil pipe, and when needs adjustment lower-continuous mapping, must play oil outlet tube, operation is complicated, and it is long to account for the well cycle.
Summary of the invention
The present invention needs the problem solved to be to provide a kind of rod-type pumping unit, for the problem of necessary lower oil tube during existing rod-type pumping unit adjustment lower-continuous mapping, devise a kind of by above putting the rod oil-sucking pumps putting sucker rod and adjustable lower-continuous mapping, without the need to lower oil tube, operation is simple, and it is short to account for the well cycle.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of rod-type pumping unit, comprise oil well pump assembly, variable buckle pipe nipple, center tube, packing element, cone, elasticity slips, rail slot, track fastening piece, elastic-friction centralizer body assembly, stop collar and lower contact, described oil well pump assembly and variable buckle pipe nipple one end are tightly connected, the described variable buckle pipe nipple the other end and center tube one end are tightly connected, the other end and lower contact one end of described center tube are tightly connected, described lower contact is provided with stop collar, the excircle of described center tube is provided with packing element successively, cone, elasticity slips and elastic-friction centralizer body assembly, described elasticity slips lower end is fixedly connected with the upper end of elastic-friction centralizer body assembly, described elastic-friction centralizer body assembly is provided with track fastening piece, the excircle of described center tube is provided with rail slot, described track fastening piece embeds in rail slot, described rail slot comprises long rail slot and short rail slot,
Track fastening piece in rail slot on described embedding center tube can be free to slide with elastic-friction centralizer body assembly and elasticity slips and become rail in the long rail slot and short rail slot of center tube, realize the degree of depth of the lower pump of adjustment, described cone moves down and struts elasticity slips, tube inner wall lived by elasticity slips anchor, and when under realizing, pump is produced, oil well pump is fixing.
Further, described oil well pump assembly is that thread seal is connected with the Placement of variable buckle pipe nipple one end.
Further, the described variable buckle pipe nipple the other end is that thread seal is connected with the Placement of center tube one end.
Further, the other end of described center tube and the Placement of lower contact are that thread seal is connected.
Further, described elasticity slips lower end is fixedly connected with mode with the upper end of elastic-friction centralizer body assembly is be threaded.
The advantage that the present invention has and good effect are: rod-type pumping unit of the present invention has grappling sealing configuration, the compressed by weight packing element of rod string is relied on during operation, the fluid column compression packing element on pump in oil pipe is relied on during production, thus the annular space between seal pack center tube and oil pipe, rely on cone to strut elasticity slips anchor and live tube inner wall, can in arbitrary position grappling sealing production except box cupling in oil pipe; When needs adjustment lower-continuous mapping, only need raising and decentralizing of sucker rod, the rail slot realizing center tube changes, and without the need to lower oil tube post, simply, it is short to account for the well cycle in operation.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is rail slot structural representation.
In figure:
1-oil well pump assembly, 2-variable buckle pipe nipple, 3-center tube, 4-packing element, 5-cone, 6-elasticity slips, 7-rail slot, the long rail slot of 71-, the short rail slot of 72-, 8-track fastening piece, 9-elastic-friction centralizer body assembly, 10-stop collar, 11-lower contact.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
As depicted in figs. 1 and 2, a kind of rod-type pumping unit, comprise oil well pump assembly 1, variable buckle pipe nipple 2, center tube 3, packing element 4, cone 5, elasticity slips 6, rail slot 7, track fastening piece 8, elastic-friction centralizer body assembly 9, stop collar 10 and lower contact 11, described oil well pump assembly 1 is tightly connected with variable buckle pipe nipple 2 one end, described variable buckle pipe nipple 2 the other end and center tube 3 one end are tightly connected, the other end and lower contact 11 one end of described center tube 3 are tightly connected, described lower contact 11 is provided with stop collar 10, the excircle of described center tube 3 is provided with packing element 4 successively, cone 5, elasticity slips 6 and elastic-friction centralizer body assembly 9, described elasticity slips 6 lower end is fixedly connected with the upper end of elastic-friction centralizer body assembly 9, described elastic-friction centralizer body assembly 9 is provided with track fastening piece 8, the excircle of described center tube 3 is provided with rail slot 7, described track fastening piece 8 embeds in rail slot 7, described rail slot 7 comprises long rail slot 71 and short rail slot 72.
Described oil well pump assembly 1 is that thread seal is connected with the Placement of variable buckle pipe nipple 2 one end.
Described variable buckle pipe nipple 2 the other end is that thread seal is connected with the Placement of center tube 3 one end.
The other end of described center tube 3 is that thread seal is connected with the Placement of lower contact 11 one end.
It is be threaded that described elasticity slips 6 lower end is fixedly connected with mode with the upper end of elastic-friction centralizer body assembly 9.
The present invention's mode of execution that pump is produced under oil well pump: rod-type pumping unit is along with entering under sucker rod in oil pipe, now track fastening piece 8 is in the top of the short rail slot 72 of center tube 3, center tube 3 is with track fastening piece 8, elastic-friction centralizer body assembly 9 and elasticity slips enter in oil pipe 6 times, elastic-friction centralizer body assembly 9 contacts with tube inner wall and there is certain frictional force, when needs are fixing, on put forward the certain distance of sucker rod, track fastening piece 8, elastic-friction centralizer body assembly 9 and elasticity slips 6 rely on elastic-friction centralizer body assembly 9 motionless with the frictional force of tube inner wall, center tube 3 moves, until track fastening piece 8 arrives short rail slot 72 on center tube 3 bottom, and then transfer the certain distance of sucker rod, now track fastening piece 8, elastic-friction centralizer body assembly 9 and elasticity slips 6 rely on elastic-friction centralizer body assembly 9 still to keep motionless with the frictional force of tube inner wall, track fastening piece 8 becomes rail to long rail slot 71 by the short rail slot 72 of center tube 3, along with transferring of sucker rod, cone 5 struts elasticity slips 6 anchor and lives tube inner wall, packing element 4 is compressed in cone 5 and center tube 3 relative movement simultaneously, namely the annular space between the compressed by weight packing element 4 seal pack center tube 3 of rod string and oil pipe is relied on, then oil pipe is filled water examination envelope, replace rod weight to compress packing element 4 by water column simultaneously, on carry sucker rod and produce.
The mode of execution of adjustment lower-continuous mapping: when needs adjustment pump is dark, on carry sucker rod, packing element 4 retracted for clearance, center tube 3 is with on movable cone 5 and is moved, cone 5 exits in elasticity slips 6, elasticity slips 6 retracted for clearance, track fastening piece 8, elastic-friction centralizer body assembly 9 and elasticity slips 6 rely on elastic-friction centralizer body assembly 9 motionless with the frictional force of tube inner wall, center tube 3 moves, until track fastening piece 8 arrives the long rail slot 71 of center tube 3 bottom, then the distance that sucker rod is certain is transferred, now track fastening piece 8, elastic-friction centralizer body assembly 9 and elasticity slips 6 rely on elastic-friction centralizer body assembly (8) still to keep motionless with the frictional force of tube inner wall, track fastening piece 8 becomes rail to short rail slot 72 by the long rail slot 71 of center tube 3, after adjustment lower-continuous mapping, repeat the step in the mode of execution of lower pump production, complete oil well pump in the fixing of new position and production.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (3)
1. a rod-type pumping unit, it is characterized in that: comprise oil well pump assembly, variable buckle pipe nipple, center tube, packing element, cone, elasticity slips, rail slot, track fastening piece, elastic-friction centralizer body assembly, stop collar and lower contact, one end of described oil well pump assembly and variable buckle pipe nipple is tightly connected, the other end and center tube one end of described variable buckle pipe nipple are tightly connected, the other end and lower contact one end of described center tube are tightly connected, described lower contact is provided with stop collar, the excircle of described center tube is provided with packing element successively, cone, elasticity slips and elastic-friction centralizer body assembly, described elasticity slips lower end is fixedly connected with the upper end of elastic-friction centralizer body assembly, described elastic-friction centralizer body assembly is provided with track fastening piece, the excircle of described center tube is provided with rail slot, described track fastening piece embeds in rail slot, described rail slot comprises long rail slot and short rail slot.
2. a kind of rod-type pumping unit according to claim 1, it is characterized in that: described oil well pump assembly is that thread seal is connected with the Placement of variable buckle pipe nipple one end, the described variable buckle pipe nipple the other end is that thread seal is connected with the Placement of center tube one end, and the other end and the Placement of lower contact one end of described center tube are that thread seal is connected.
3. a kind of rod-type pumping unit according to claim 1, is characterized in that: it is be threaded that described elasticity slips lower end is fixedly connected with mode with the upper end of elastic-friction centralizer body assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410847865.1A CN104564625B (en) | 2014-12-31 | 2014-12-31 | A kind of rod-type pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410847865.1A CN104564625B (en) | 2014-12-31 | 2014-12-31 | A kind of rod-type pumping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104564625A true CN104564625A (en) | 2015-04-29 |
| CN104564625B CN104564625B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410847865.1A Active CN104564625B (en) | 2014-12-31 | 2014-12-31 | A kind of rod-type pumping unit |
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| Country | Link |
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| CN (1) | CN104564625B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227938A (en) * | 2017-07-12 | 2017-10-03 | 中国石油集团西部钻探工程有限公司 | Well rotary guide shoe assembly can be repaired |
| CN110836103A (en) * | 2019-11-13 | 2020-02-25 | 辽宁新华仪器有限公司 | Lifting type spray-proof anchor |
| CN111980630A (en) * | 2020-08-03 | 2020-11-24 | 中国石油化工股份有限公司 | Pump depth adjusting method for oil well pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2088805C1 (en) * | 1995-03-21 | 1997-08-27 | Владимир Леонидович Грабовецкий | Sucker-rod well pump |
| CN2651434Y (en) * | 2003-08-23 | 2004-10-27 | 辽河石油勘探局工程技术研究院 | Small-well cracking packer |
| CN201517492U (en) * | 2009-10-13 | 2010-06-30 | 大港油田集团有限责任公司 | Control device of bottom valve of sucker rod pump |
-
2014
- 2014-12-31 CN CN201410847865.1A patent/CN104564625B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2088805C1 (en) * | 1995-03-21 | 1997-08-27 | Владимир Леонидович Грабовецкий | Sucker-rod well pump |
| CN2651434Y (en) * | 2003-08-23 | 2004-10-27 | 辽河石油勘探局工程技术研究院 | Small-well cracking packer |
| CN201517492U (en) * | 2009-10-13 | 2010-06-30 | 大港油田集团有限责任公司 | Control device of bottom valve of sucker rod pump |
Non-Patent Citations (3)
| Title |
|---|
| 李庆海等: "新兴可控多功能底阀抽油泵研制与应用", 《石油矿场机械》 * |
| 李英等: "Y241高压挤注封隔器的研制与应用", 《石油机械》 * |
| 蔡藻等: "Y422-114型双向卡瓦封隔器的研制及应用", 《石油机械》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227938A (en) * | 2017-07-12 | 2017-10-03 | 中国石油集团西部钻探工程有限公司 | Well rotary guide shoe assembly can be repaired |
| CN110836103A (en) * | 2019-11-13 | 2020-02-25 | 辽宁新华仪器有限公司 | Lifting type spray-proof anchor |
| CN111980630A (en) * | 2020-08-03 | 2020-11-24 | 中国石油化工股份有限公司 | Pump depth adjusting method for oil well pump |
| CN111980630B (en) * | 2020-08-03 | 2022-06-24 | 中国石油化工股份有限公司 | Pump depth adjusting method for oil well pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104564625B (en) | 2016-09-28 |
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Address after: 300280 Tianjin Binhai New Area Dagang Oilfield No. three hospital Patentee after: Tianjin Dagang Oil Field Petroleum Engineering Research Institute Drilling Technology Development Co Ltd Address before: 300280 Tianjin Binhai New Area Dagang Oilfield No. three hospital Patentee before: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING |
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