CN2665404Y - Oil thickening pump with a below-mounted weight adding device - Google Patents
Oil thickening pump with a below-mounted weight adding device Download PDFInfo
- Publication number
- CN2665404Y CN2665404Y CN 200320131817 CN200320131817U CN2665404Y CN 2665404 Y CN2665404 Y CN 2665404Y CN 200320131817 CN200320131817 CN 200320131817 CN 200320131817 U CN200320131817 U CN 200320131817U CN 2665404 Y CN2665404 Y CN 2665404Y
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- CN
- China
- Prior art keywords
- sealing
- valve body
- pump
- joint
- jump ring
- 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 - Fee Related
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- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
An under-pump weighted thick oil pump comprises an upper joint, a knock-off joint, a locating joint, a sealing body, a sealing base, a valve body, a clip spring spacer sleeve, a clip spring, a sealing cylinder, a sealing rod, a pump cylinder, a plunger piston assembly and a weighting rod. The upper joint is connected with the upper part of the valve body. The sealing base is arranged in the valve body. The locating joint plays a role of compressing the sealing base. The clip spring spacer sleeve is arranged on the screw thread at the lower part of the valve body. The valve body is connected with the pump cylinder. The sealing body which is seated on the sealing base is connected with the sealing cylinder. The clip spring is positioned under the clip spring spacer sleeve. The sealing cylinder is sleeved on the sealing rod. The lower part of the sealing rod is connected with the weighting rod, so that the descending force is increased, the ability to pump thick oil is improved and the thick oil well is ensured for normal production. The valve body is a circular structure which ensures large area for flow and also a mechanical structure which ensures flexible operation in the thick oil well; the valve body can be closed in time, improving the reliability of the thick oil pump.
Description
One, technical field
The utility model is the Special subsurface pump that the oil-field thick-oil pumping well is used, and increases the weight of thick oil pump under particularly a kind of pump.
Two, background technique
The 89201356.7 hydraulic pressure feedback thick oil pump of prior art, the long polished rod of smooth solid cylinder is equipped with in the lower end, and its lower end is the guiding awl, under the guiding awl other parts is not installed.The oiling valve of this pump adopts loop configuration, is distributed on the valve body by a plurality of valve balls, valve seat, and is malfunctioning if any a valve ball, valve seat, hydraulic pressure feedback thick oil pump just can not be pumped, and the oiling valve of this structure, the valve ball diameter is little, it is ineffective to be easy to work in viscous crude, causes that oil well is not fuel-displaced.
Three, summary of the invention
The purpose of this utility model is to increase the weight of thick oil pump under a kind of pump of design, makes under its pump and can be with weighted lever, increases descending power, improves the ability of taking out viscous crude.Valve body is a loop configuration, and circulation area is big, and is mechanical structure, works in thick oil well flexibly, closes immediately, improves the reliability of thick oil pump.
The purpose of this utility model is achieved in that it is made up of upper connection, knock-off joint, landing nipple, seal, sealing seat, valve body, jump ring interstage sleeve, jump ring, sealing drum, seal bar, pump barrel, plunger piston assembly, weighted lever.The upper connection bottom connects with valve body top, and sealing seat is installed in the valve body, scyewed joint in landing nipple and the valve inner, landing nipple is on the sealing seat, work to compress sealing seat, the jump ring interstage sleeve is installed on the valve body lower portion screw thread, and the valve body lower portion screw thread connects with pump barrel.The seal seat is on sealing seat, and seal connects with sealing drum top, and jump ring is sleeved on the sealing drum, and is under the jump ring interstage sleeve, and sealing sleeve is contained on the seal bar, coupling rod joint on the seal bar, and the knock-off joint seat is on landing nipple.The seal bar bottom connects plunger piston assembly.Connect weighted lever under the plunger piston assembly.
Knock-off joint top connects sucker rod, when the pumping unit upstroke of ground, it is up that pumping unit drives sucker rod, knock-off joint, seal bar, plunger piston assembly, outlet valve group on the plunger piston assembly is closed, the oil suction chamber volume that pump barrel and seal bar form reduces, and pressure rises, and seal, sealing drum are up, runner is opened, and the liquid of the oil suction chamber that pump barrel and seal bar form is discharged from.The up height of seal, sealing drum is spacing by jump ring and jump ring interstage sleeve.When the pumping unit down stroke of ground, sucker rod, knock-off joint, seal bar, plunger piston assembly are descending, seal, sealing drum fall, seal is located in closing passage on the sealing seat, the oil suction chamber volume that pump barrel and seal bar form increases, pressure descends, and the outlet valve group on the plunger piston assembly is opened, and well liquid enters the oil suction chamber of pump barrel and seal bar formation.
When operation plays pump, carry sucker rod on the ground, knock-off joint, seal bar, plunger piston assembly are up, plunger piston assembly top contacts with the sealing drum bottom, it is up that sealing drum drives jump ring again, when jump ring contacts with the jump ring interstage sleeve, and resilient jump ring reduced diameter, by the jump ring interstage sleeve, sucker rod, knock-off joint, seal bar, seal, sealing drum, jump ring, plunger piston assembly can all propose.
The beneficial effects of the utility model are: because this pump plunger assembly bottom has connected the weighted lever of constant weight, increased descending power, helped sucker rod descending, thereby overcome the surface friction drag of viscous crude sucker rod, improved the ability of taking out viscous crude, made thick oil well energy ordinary production.Valve body is a cyclic structure, and circulation area is big, and is mechanical structure, works in thick oil well flexibly, closes in time, can improve the reliability of thick oil pump.
Four, description of drawings
Accompanying drawing is the erection drawing of this use new embodiment.
Five, embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
Among the figure: the 1st, upper connection, the 2nd, knock-off joint, the 3rd, landing nipple, the 4th, seal, the 5th, sealing seat, the 6th, valve body, the 7th, jump ring interstage sleeve, the 8th, jump ring, the 9th, sealing drum, the 10th, seal bar, the 11st, pump barrel, the 12nd, plunger piston assembly, the 13rd, weighted lever.Be that the utility model is made up of upper connection 1, knock-off joint 2, landing nipple 3, seal 4, sealing seat 5, valve body 6, jump ring interstage sleeve 7, jump ring 8, sealing drum 9, seal bar 10, pump barrel 11, plunger piston assembly 12, weighted lever 13.Upper connection 1 bottom connects with valve body 6 tops, sealing seat 5 is installed in the valve body 6, scyewed joint in landing nipple 3 and valve body 6 inside, landing nipple 3 is on the sealing seat 5, work to compress sealing seat 5, jump ring interstage sleeve 7 is installed on valve body 6 lower thread, and valve body 6 lower thread connect with pump barrel 11.Seal 4 connects with sealing drum 9 tops 4 of seals on sealing seat 5, and jump ring 8 is sleeved on the seal bar 10, coupling rod joint 2 on the seal bar 10, seal bar 10 bottoms connect plunger piston assembly 12 to 2 of knock-off joints on landing nipple 3, and plunger piston assembly 12 bottoms connect weighted lever 13.
Knock-off joint 2 tops connect sucker rod, when the pumping unit upstroke of ground, it is up that pumping unit drives sucker rod, knock-off joint 2, seal bar 10, plunger piston assembly 12, outlet valve group on the plunger piston assembly 12 is closed, pump barrel 11 reduces with seal bar 10 oil suction chamber volumes, pressure rises, and the up height of seal 4, sealing drum 9 is spacing by jump ring 8 and jump ring interstage sleeve 7.When the pumping unit down stroke of ground, sucker rod, knock-off joint 2, seal bar 10, plunger piston assembly 12 are descending, seal 4, sealing drum 9 fall, seal 4 is located in closing passage on the sealing seat 5, pump barrel 11 increases with the oil suction chamber volume that seal 10 forms, pressure descends, and the outlet valve group of plunger piston assembly 12 is opened, and well liquid enters the oil suction chamber of pump barrel 11 and seal bar 10 formation.
When operation plays pump, it is up to carry sucker rod, knock-off joint 2, seal bar 10, plunger piston assembly 12 on the ground, plunger piston assembly 12 tops contact with sealing drum 9 bottoms, it is up that sealing drum 9 drives jump ring 8 again,, when jump ring 8 contacts with jump ring interstage sleeve 7, resilient jump ring 8 reduced diameter, by jump ring interstage sleeve 7, sucker rod, sucker rod, knock-off joint 2, seal bar 10, seal 4, stuffing box gland 9, jump ring 8, plunger piston assembly 12 can all propose.
Claims (1)
1, increase the weight of thick oil pump under a kind of pump, by upper connection (1), knock-off joint (2), landing nipple (3), seal (4), sealing seat (5), valve body (6), jump ring interstage sleeve (7), jump ring (8), sealing drum (9), seal bar (10), pump barrel (11), plunger piston assembly (12), weighted lever (13) is formed, it is characterized in that: upper connection (1) bottom connects with valve body (6) top, sealing seat (5) is installed in the valve body (6), scyewed joint in landing nipple (3) and valve body (6) inside, landing nipple (3) is on the sealing seat (5), jump ring interstage sleeve (7) is installed on valve body (6) lower thread, valve body (6) lower thread connects with pump barrel (11), seal (4) seat is on sealing seat (5), seal (4) connects with sealing drum (9) top, jump ring (8) is sleeved on the sealing drum (9), and be under the jump ring interstage sleeve (7), sealing drum (9) is sleeved on the seal bar (10), coupling rod joint (2) on the seal bar (10), knock-off joint (2) seat is on landing nipple (3), seal bar (10) bottom connects plunger piston assembly (12), connects weighted lever (13) under the plunger piston assembly (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131817 CN2665404Y (en) | 2003-12-17 | 2003-12-17 | Oil thickening pump with a below-mounted weight adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131817 CN2665404Y (en) | 2003-12-17 | 2003-12-17 | Oil thickening pump with a below-mounted weight adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665404Y true CN2665404Y (en) | 2004-12-22 |
Family
ID=34350254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320131817 Expired - Fee Related CN2665404Y (en) | 2003-12-17 | 2003-12-17 | Oil thickening pump with a below-mounted weight adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665404Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949277A (en) * | 2010-08-21 | 2011-01-19 | 中国石油化工股份有限公司 | Oil extraction method of weight adding under pump and oil well pump with weight adding under pump |
-
2003
- 2003-12-17 CN CN 200320131817 patent/CN2665404Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949277A (en) * | 2010-08-21 | 2011-01-19 | 中国石油化工股份有限公司 | Oil extraction method of weight adding under pump and oil well pump with weight adding under pump |
| CN101949277B (en) * | 2010-08-21 | 2013-07-03 | 中国石油化工股份有限公司 | Oil extraction method of weight adding under pump and oil well pump with weight adding under pump |
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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 |