CN2457369Y - Movable tube type thickened oil pump - Google Patents
Movable tube type thickened oil pump Download PDFInfo
- Publication number
- CN2457369Y CN2457369Y CN 00265837 CN00265837U CN2457369Y CN 2457369 Y CN2457369 Y CN 2457369Y CN 00265837 CN00265837 CN 00265837 CN 00265837 U CN00265837 U CN 00265837U CN 2457369 Y CN2457369 Y CN 2457369Y
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- pump barrel
- oil
- plunger
- tube
- joint
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Abstract
The utility model relates to a movable barrel type thick oil pump for oil extraction. The utility model is composed of an upper joint, an oil outlet valve, an oil inlet valve, a small plunger, a plunger pump barrel, an outer pump barrel, an outer tube, a connecting tube, a tail tube joint and an oil inlet sieve tube. When the utility model sucks oil, the utility model generates downward feedback force used for overcoming the friction resistance of thick oil for descending a sucker rod. The utility model has three kinds of embodiments, wherein, one embodiment is that the outer pump barrel does not bear axial force which is born by the outer tube, and the utility model can be provided with the long tail tube and a packer to produce. When the thick oil pump sucks oil, the lower end surface of the plunger pump barrel is always contacted with liquid with constant pressure, which can keep an oil sucking system smooth. The utility model has no an impact problem, and the lifetime of the oil sucking system can be improved.
Description
The utility model relates to the oil well pump of taking out viscous crude that a kind of oil field machinery oil is used, particularly a kind of movable barrel type thick oil pump.
The thick oil pump kind that use in the oil field is more, as the patent No.: 99207195.x reaction type thick oil pump, because the pressure of annular space is lower than strata pressure, therefore, the liquid that the matching gap of pump barrel and plunger is missed under differential pressure action makes annular space that certain liquid be arranged every pressing under the valve action, when the plunger pump barrel goes downwards to certain position, the plunger pump barrel touches liquid suddenly, produces fluid power and impacts, and makes oil pumping system produce vibration, it is not steady to pump, and influences the life-span of oil pumping system.This thick oil pump is when being designed to float amount thick oil pump, and its external diameter is little, and rigidity and intensity are low, and resistance to compression and resistance to tension are low, still can not belt length tail pipe and packet production.
The purpose of this utility model is that design a kind of rigidity and intensity are big, and resistance to compression and resistance to tension are strong, can the belt length tail pipe and the thick oil pump produced of packet, and there is not fluid power to impact, make it when oil pumping, oil pumping system held stationary, the life-span of improving oil pumping system.
The purpose of this utility model is achieved in that it is made up of upper connection, outlet valve, oiling valve, small plunger, plunger pump barrel, outer pump barrel, outer tube, connecting tube, tail tube joint, oil-feed screen casing.Upper connection bottom major thread connects outer tube top, and the outer tube bottom connects tail tube joint top major thread, and UNICOM's slotted eye is arranged on the outer tube.Upper connection bottom minor thread connects outer pump barrel, outer pump barrel inside is respectively outlet valve, plunger pump barrel from top to bottom, outlet valve and plunger pump barrel are by scyewed joint, and plunger pump barrel inside is respectively oiling valve, small plunger, connecting tube from top to bottom, and oiling valve, small plunger, connecting tube are by scyewed joint.Outer pump barrel inwall cooperates with the plunger pump drum outer wall and seals, and plunger pump barrel inwall cooperates with the small plunger outer wall and seals.The connecting tube bottom is connected on the tail tube joint minor thread, and UNICOM's slotted eye is arranged in the connecting tube, and tail tube joint bottom minor thread connects the oil-feed screen casing.
When thick oil pump is gone into the well, upper connection, oiling valve, small plunger, outer pump barrel, outer tube, connecting tube, tail tube joint, oil-feed screen casing are with oil pipe elder generation G.I.H, outlet valve, plunger pump barrel are lowered to sucker rod, when sucker rod is up, outlet valve, plunger pump barrel are up, and liquid is in oil-feed screen casing, tail tube joint inside, connecting tube inside, small plunger inside, oiling valve enter into the plunger pump barrel on oiling valve top.When sucker rod was descending, outlet valve, plunger pump barrel were descending, and the liquid in the plunger pump barrel on oiling valve top drains on the pump through outlet valve.When sucker rod is descending, under the UNICOM's slotted eye effect in outer tube and the connecting tube, annular space and sleeve pipe UNICOM that outer tube wall, connecting tube outer wall form are because casing pressure is lower than the pressure on the thick oil pump, therefore, plunger pump barrel upper end pressure is higher than end pressure down, under this pressure difference effect, produce downward power, i.e. a feedback force, thereby obtain downward feedback force when making the plunger pump barrel descending, be used to overcome the viscous crude surface friction drag descending sucker rod.
Movable barrel type thick oil pump of the present utility model is when being designed to float amount thick oil pump, its outer pump barrel does not bear axial force, axial force is born by outer tube, and the rigidity and the intensity of outer tube are big, and resistance to compression and resistance to tension are strong, can belt length tail pipe and packet production, during the thick oil pump oil pumping, plunger pump barrel lower end surface touches the constant liquid of pressure all the time, can keep oil pumping system steady, there is not shock problem, can improves the life-span of oil pumping system.
Fig. 1 is first kind of embodiment's of the utility model a half sectional view.
Fig. 2 is second kind of embodiment's of the utility model a half sectional view.
Fig. 3 is the third embodiment's of the utility model a half sectional view.
When thickened-oil pump is designed to the small displacement thickened-oil pump, adopt first kind of embodiment, make outer pump Tube does not bear axial force, guarantees the thickened-oil pump reliable operation. When thickened-oil pump is designed to big discharge capacity During thickened-oil pump, adopt second and third kind embodiment, because its diameter is bigger, bearing capacity Stronger, can bear certain axial force. When thickened-oil pump is designed to big discharge capacity thickened-oil pump, Also can adopt first kind of embodiment.
Following elder generation is described further first kind of embodiment of the utility model in conjunction with Fig. 1.
In Fig. 1: the 1st, upper connection, the 2nd, outlet valve, the 3rd, oiling valve, the 4th, small plunger, the 5th, plunger pump barrel, the 6th, outer pump barrel, the 7th, outer tube, the 8th, connecting tube, the 9th, tail tube joint, the 10th, oil-feed screen casing.Be that first kind of embodiment of the utility model is made up of upper connection 1, outlet valve 2, oiling valve 3, small plunger 4, plunger pump barrel 5, outer pump barrel 6, outer tube 7, connecting tube 8, tail tube joint 9, oil-feed screen casing 10.Upper connection 1 bottom major thread connects outer tube 7 tops, and outer tube 7 bottoms connect tail tube joint 9 top major threads, and the slotted eye A of UNICOM is arranged on the outer tube 7.Upper connection 1 bottom minor thread connects outer pump barrel 6, outer pump barrel 6 inside are respectively outlet valve 2, plunger pump barrel 5 from top to bottom, outlet valve 2 and plunger pump barrel 5 are by scyewed joint, plunger pump barrel 5 inside are respectively oiling valve 3, small plunger 4, connecting tube 8 from top to bottom, and oiling valve 3, small plunger 4, connecting tube 8 are by scyewed joint.Outer pump barrel 6 inwalls cooperate with plunger pump barrel 5 outer walls and seal, and plunger pump barrel 5 inwalls cooperate with small plunger 4 outer walls and seal.Connecting tube 8 bottoms are connected on the minor thread on tail tube joint 9 tops, and the slotted eye B of UNICOM is arranged in the connecting tube 8, and tail tube joint 9 bottom minor threads connect oil-feed screen casing 10.
When thick oil pump was gone into the well, upper connection 1, oiling valve 3, small plunger 4, outer pump barrel 6, outer tube 7, connecting tube 8, tail tube joint 9, oil-feed screen casing 10 be with oil pipe elder generation G.I.H, and outlet valve 2, plunger pump barrel 5 are lowered to sucker rod.When sucker rod was up, outlet valve 2, plunger pump barrel 5 were up, and liquid enters in the plunger pump barrel 5 on oiling valve 3 tops through oil-feed screen casing 10, tail tube joint 9 inside, connecting tube 8 inside, small plunger 4 inside, oiling valve 3.When sucker rod was descending, outlet valve 2, plunger pump barrel 5 were descending, and the liquid in the plunger pump barrel 5 on oiling valve 3 tops drain on the pump through outlet valve 2.When sucker rod is descending, under the slotted eye A of UNICOM in outer tube 7 and the connecting tube 8, B effect, annular space and sleeve pipe UNICOM that outer tube 7 inwalls, connecting tube 8 outer walls form are because casing pressure is lower than the pressure on the thick oil pump, therefore, end pressure is higher than end pressure down on the plunger pump barrel 5, under this pressure difference effect, produce downward power, i.e. a feedback force, thereby obtain downward feedback force when making plunger pump barrel 5 descending, be used to overcome the viscous crude surface friction drag descending sucker rod.
In conjunction with Fig. 2 second kind of embodiment of the utility model described again below.
In Fig. 2: 2-1 is upper connection, the 2nd, outlet valve, the 3rd, and oiling valve, the 4th, small plunger, the 5th, plunger pump barrel, the 6th, outer pump barrel, 2-7 are outer tubes, the 8th, connecting tube, the 9th, tail tube joint, the 10th, oil-feed screen casing.Be that second kind of embodiment of the present utility model is made up of upper connection 2-1, outlet valve 2, oiling valve 3, small plunger 4, plunger pump barrel 5, outer pump barrel 6, outer tube 2-7, connecting tube 8, tail tube joint 9, oil-feed screen casing 10.Upper connection 2-1 lower thread connects outer pump barrel 6 tops, and outer pump barrel 6 bottoms connect outer tube 2-7, and outer tube 2-7 bottom connects tail tube joint 9 top major threads, and the slotted eye A of UNICOM is arranged on the outer tube 2-7.Outer pump barrel 6 inside are respectively outlet valve 2, plunger pump barrel 5 from top to bottom, outlet valve 2 and plunger pump barrel 5 are by scyewed joint, plunger pump barrel 5 inside are respectively oiling valve 3, small plunger 4, connecting tube 8 from top to bottom, and oiling valve 3, small plunger 4, connecting tube 8 are by scyewed joint.Outer pump barrel 6 inwalls cooperate with plunger pump barrel 5 outer walls and seal, and plunger pump barrel 5 inwalls cooperate with small plunger 4 outer walls and seal.Connecting tube 8 bottoms are connected on the minor thread on tail tube joint 9 tops, and the slotted eye B of UNICOM is arranged in the connecting tube 8, and tail tube joint 9 bottom minor threads connect oil-feed screen casing 10.
When thick oil pump was gone into the well, upper connection 2-1, oiling valve 3, small plunger 4, outer pump barrel 6, outer tube 2-7, connecting tube 8, tail tube joint 9, oil-feed screen casing 10 be with oil pipe elder generation G.I.H, and outlet valve 2, plunger pump barrel 5 are lowered to sucker rod.When sucker rod was up, outlet valve 2, plunger pump barrel 5 were up, and liquid enters in the plunger pump barrel 5 on oiling valve 3 tops through oil-feed screen casing 10, tail tube joint 9 inside, connecting tube 8 inside, small plunger 4 inside, oiling valve 3.When sucker rod was descending, outlet valve 2, plunger pump barrel 5 were descending, and the liquid in the plunger pump barrel 5 on oiling valve 3 tops drain on the pump through outlet valve 2.When sucker rod is descending, under the slotted eye A of UNICOM in outer tube 2-7 and the connecting tube 8, B effect, annular space and sleeve pipe UNICOM that outer tube 2-7 inwall, connecting tube 8 outer walls form are because casing pressure is lower than the pressure on the thick oil pump, therefore, end pressure is higher than end pressure down on the plunger pump barrel 5, under this pressure difference effect, produce downward power, i.e. a feedback force, thereby obtain downward feedback force when making plunger pump barrel 5 descending, be used to overcome the viscous crude surface friction drag descending sucker rod.
In conjunction with Fig. 3 the third embodiment of the utility model is described again below.
In Fig. 3: 2-1 is upper connection, the 2nd, and outlet valve, the 3rd, oiling valve, 3-4 are small plungers, the 5th, and plunger pump barrel, 3-6 are outer pump barrels, the 9th, tail tube joint, the 10th, oil-feed screen casing.Be that the third embodiment of the present utility model is made up of upper connection 2-1, outlet valve 2, oiling valve 3, small plunger 3-4, plunger pump barrel 5, outer pump barrel 3-6, tail tube joint 9, oil-feed screen casing 10.Upper connection 2-1 lower thread connects outer pump barrel 3-6 top, and outer pump barrel 3-6 bottom connects tail tube joint 9 top major threads, and the slotted eye A of UNICOM is arranged on the outer pump barrel 3-6.Outer pump barrel 3-6 inside is respectively outlet valve 2, plunger pump barrel 5 from top to bottom, outlet valve 2 and plunger pump barrel 5 are by scyewed joint, plunger pump barrel 5 inside are respectively oiling valve 3, small plunger 3-4 from top to bottom, oiling valve 3, small plunger 3-4 are by scyewed joint, small plunger 3-4 bottom is connected on the minor thread on tail tube joint 9 tops, the slotted eye B of UNICOM is arranged on the small plunger 3-4, and tail tube joint 9 bottom minor threads connect oil-feed screen casing 10.Outer pump barrel 3-6 inwall cooperates with plunger pump barrel 5 outer walls and seals, and plunger pump barrel 5 inwalls cooperate with small plunger 3-4 outer wall and seal.
When thick oil pump was gone into the well, upper connection 2-1, oiling valve 3, small plunger 3-4, outer pump barrel 3-6, tail tube joint 9, oil-feed screen casing 10 be with oil pipe elder generation G.I.H, and outlet valve 2, plunger pump barrel 5 are lowered to sucker rod.When sucker rod was up, outlet valve 2, plunger pump barrel 5 were up, and liquid enters in the plunger pump barrel 5 on oiling valve 3 tops through oil-feed screen casing 10, tail tube joint 9 inside, small plunger 3-4 inside, oiling valve 3.When sucker rod was descending, outlet valve 2, plunger pump barrel 5 were descending, and the liquid in the plunger pump barrel 5 on oiling valve 3 tops drain on the pump through outlet valve 2.When sucker rod is descending, the slotted eye A of UNICOM on pump barrel 3-6 and the small plunger 3-4, B effect outside down, annular space and sleeve pipe UNICOM that outer pump barrel 3-6 inwall and small plunger 3-4 outer wall form are because casing pressure is lower than the pressure on the thick oil pump, therefore, end pressure is higher than end pressure down on the plunger pump barrel 5, under this pressure difference effect, produce downward power, i.e. a feedback force, thereby obtain downward feedback force when making plunger pump barrel 5 descending, be used to overcome the viscous crude surface friction drag descending sucker rod.
Fig. 4 is the combination assumption diagram of plunger pump barrel 5 among the utility model embodiment.Require not simultaneously owing to work as feedback force and discharge capacity, the wall thickness of plunger pump barrel 5 may be thicker, and when plunger pump barrel 5 wall thickness were thicker, plunger pump barrel 5 adopted this fabricated structure.In Fig. 4: 5a is a joint, and 5b is a long-plunger, and 5c is long pump barrel.Joint 5a top connects outlet valve 2, joint 5a bottom major thread connects long-plunger 5b, joint 5a bottom minor thread connects long pump barrel 5c, long-plunger 5b inside is long pump barrel 5c, long-plunger 5b outer wall cooperates with outer pump barrel 6,3-6 among three kinds of embodiments and seals, and long pump barrel 5c inwall cooperates with small plunger 4,3-4 and seals.
Claims (3)
1, the movable barrel type thick oil pump that a kind of oil field machinery oil is used, by upper connection (1), outlet valve (2), oiling valve (3), small plunger (4), plunger pump barrel (5), outer pump barrel (6), outer tube (7), connecting tube (8), tail tube joint (9), oil-feed screen casing (10) is formed, or by upper connection (2-1), outlet valve (2), oiling valve (3), small plunger (4), plunger pump barrel (5), outer pump barrel (6), outer tube (2-7), connecting tube (8), tail tube joint (9), oil-feed screen casing (10) is formed, or by upper connection (2-1), outlet valve (2), oiling valve (3), small plunger (3-4), plunger pump barrel (5), outer pump barrel (3-6), tail tube joint (9), oil-feed screen casing (10) is formed, it is characterized in that: upper connection (1) bottom major thread connects outer tube (7) top, outer tube (7) bottom connects tail tube joint (9) top major thread, connecting tube (8) bottom is connected on the minor thread on tail tube joint (9) top, tail tube joint (9) bottom minor thread connects oil-feed screen casing (10), or outer tube (2-7) bottom connects tail tube joint (9) top major thread, or connection tail tube joint (9) top, outer pump barrel (3-6) bottom major thread, small plunger (3-4) bottom is connected on the minor thread on tail tube joint (9) top.
2, movable barrel type thick oil pump according to claim 1 is characterized in that on outer tube (7) or outer tube (2-7) or the outer pump barrel (3-6) the slotted eye A of UNICOM being arranged, and on connecting tube (8) or the small plunger (3-4) the groove B of UNICOM is arranged.
3, movable barrel type thick oil pump according to claim 1, plunger pump barrel 5 can adopt composite structure, plunger pump barrel 5 composite structures are made up of joint (5a), long-plunger (5b), long pump barrel (5c), joint (5a) top connects outlet valve (2), joint (5a) bottom major thread connects long-plunger (5b), joint (5a) bottom minor thread connects long pump barrel (5c), it is characterized in that long-plunger (5b) inside is long pump barrel (5c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265837 CN2457369Y (en) | 2000-12-19 | 2000-12-19 | Movable tube type thickened oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265837 CN2457369Y (en) | 2000-12-19 | 2000-12-19 | Movable tube type thickened oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2457369Y true CN2457369Y (en) | 2001-10-31 |
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ID=33620076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00265837 Expired - Fee Related CN2457369Y (en) | 2000-12-19 | 2000-12-19 | Movable tube type thickened oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2457369Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541664A (en) * | 2013-09-27 | 2014-01-29 | 中国石油化工股份有限公司 | Hydraulic feedback type sucker rod weighting device |
-
2000
- 2000-12-19 CN CN 00265837 patent/CN2457369Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541664A (en) * | 2013-09-27 | 2014-01-29 | 中国石油化工股份有限公司 | Hydraulic feedback type sucker rod weighting device |
| CN103541664B (en) * | 2013-09-27 | 2015-09-30 | 中国石油化工股份有限公司 | Hydraulic feedback formula sucker rod weight increasing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Jie Document name: Notification of Termination of Patent Right |
|
| 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 |