CN2204006Y - Loop flow oil pump with hollow central part - Google Patents
Loop flow oil pump with hollow central part Download PDFInfo
- Publication number
- CN2204006Y CN2204006Y CN 94230219 CN94230219U CN2204006Y CN 2204006 Y CN2204006 Y CN 2204006Y CN 94230219 CN94230219 CN 94230219 CN 94230219 U CN94230219 U CN 94230219U CN 2204006 Y CN2204006 Y CN 2204006Y
- Authority
- CN
- China
- Prior art keywords
- valve
- hollow rod
- travelling valve
- oil
- hollow
- 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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Abstract
The utility model relates to a hollow loop flow oil pumping pump, comprising a hollow oil pumping rod 1, an upper movable valve seat 2, an upper movable valve 3, an upper movable valve gear 5, a pump sleeve 7, a piston body 8, a lower movable valve gear 9, a lower movable valve seat 10, a lower movable valve 11, a valve hole 12, a fixing valve cover 13, a fixing valve ball 14, a fixing valve seat 15, an oil pipe connecting hoop 17, a slide sealing sleeve 18, a screen pipe 19, a screen pipe cover 22, and a cable 24. The cable 24 and the hollow oil pumping rod 1 form an electric loop. The cable 24 is electrified alternating current, the hollow oil pumping rod 1 and the cable 24 heat, the thick oil or the high coagulation oil on the periphery of the hollow oil pumping rod 1, the interior of a pump sleeve 7, the upper side and the lower side of the pump sleeve 7 are heated to lower viscosity, and are not easily waxed. When the hollow oil pumping rod 1 moves from top to bottom, oil is raised onto a ground to be transferred.
Description
The utility model relates to a kind of hollow circulation oil well pump.
At Oilfield using pumping unit heavy crude producing, height coagulates in the oily process, the hollow stem heating oil extraction is adopted tubing pump usually, its sucker rod is made up of hollow rod and solid sucker rod two-part, solid sucker rod one end is connected with swabs top, the other end is connected with hollow rod, because viscous crude, the high oil viscosity height that coagulates, content of wax height, be difficult for exploitation, usually in hollow rod, lead to a cable, make cable and hollow rod form electric loop, when passing to Ac, hollow rod and cable produce heat, viscous crude around heat transferred hollow rod and the solid sucker rod or the high oil that coagulates, the easy like this oil with the swabs top is drawn to ground.But, when sucker rod, when swabs moves downward, because the viscous crude of swabs below or the high oil that coagulates are not heated, and be difficult for flowing into above piston and the piston, when sucker rod moves upward, be drawn to the oily less of ground, reduced the efficient of oil well pump.
The purpose of this utility model will provide a kind of hollow circulation oil well pump exactly, make hollow rod pass through pump, when passing to Ac, by hollow rod on the pump, under the pump, crude oil heats simultaneously in the pump, viscosity of thickened oil reduces easily mobile, the high oil that coagulates is difficult for wax deposition, when oil well pump is pumped, can suck and extract out viscous crude or the high oil that coagulates effectively.
The purpose of this utility model is achieved in that
The utility model comprises sleeve pipe 6, pump block 7, standing valve cover 13, fixed valve ball 14, fixed valve base 15, tubing coupling 17, screen casing 19, screen casing cover 22, the outer wall of sleeve pipe 6 is to use cement and formation consolidation together, perforation on the close sleeve pipe 6 at oil reservoir position, oil inlet hole 21 is communicated with oil reservoir, the upper end of drum shape pump block 7 is connected (not drawing among the figure) with oil pipe, the lower end of pump block 7 is connected with tubing coupling 17 by outside thread, the disc fixed valve base 15 of band valve opening 16 is enclosed within on the hollow rod 1, the outer rim of fixed valve base 15 is clamped in the lower end of pump block 7 by tubing coupling 17, standing valve cover 13 is a hollow hemisphere, have circular hole at the hemisphere top, have groove from circular hole along hemispheroidal warp direction, standing valve cover 13 is fixedlyed connected with fixed valve base 15, drum shape screen casing 19 is connected with screen casing cover 22 with tubing coupling 17 by outside thread, have oil inlet hole 20 on the tube wall of screen casing 19, circular screen casing cover 22 is enclosed within on the hollow rod 1, have oil inlet hole 23 on the screen casing cover 22, spherical fixed valve ball 14 is sitting on the valve opening 16 of fixed valve base 15, in the drum shape tubing coupling 17 of round boss is arranged screen casing 19, fixed valve base 15, pump block 7 links together, it is characterized in that: in pump block 7, the upper travelling valve seat 2 of band conical surface is enclosed within on the hollow rod 1 in the drum shape, upper travelling valve seat 2 is connected with piston body 8 by internal thread, the upper travelling valve shelves 5 of disc band valve opening 4 are enclosed within on the hollow rod 1, the outer rim of upper travelling valve shelves 5 is clamped between upstream valve seat 2 and the piston body 8, drum shape, the bottom surface has the lower travelling valve shelves 9 of valve opening 12 to be enclosed within on the hollow rod 1, lower travelling valve shelves 9 are connected with piston body 8 by internal thread, piston body 8 and pump block 7 are for being slidingly matched, the lower travelling valve seat 10 of band conical surface is enclosed within on the hollow rod 1 in the disc, the outer rim of lower travelling valve seat 10 is clamped between lower travelling valve shelves 9 and the piston body 8, the upper travelling valve 3 of the cone shape between upper travelling valve shelves 5 and upper travelling valve seat 2 is pressed on the hollow rod 1, the lower travelling valve 11 of the cone shape between lower travelling valve shelves 9 and lower travelling valve seat 10 is pressed on the hollow rod 1, drum shape slipper seal cover 18 is enclosed within on the hollow rod 1, slipper seal cover 18 is connected with fixed valve base 15 by outside thread, cable 24 is arranged in the tubular shape hollow rod 1, and cable 24 and hollow rod 1 constitute electric loop.
When heavy crude producing or high oil with fixed attention, pass to Ac for cable 24, cable 24 and hollow rod 1 constitute electric loop and heating, heat is passed between screen casing cover 22 belows, screen casing 19 and the slipper seal cover 18, between fixed valve base 15 and the lower travelling valve shelves 9, between lower travelling valve shelves 9 and the upper travelling valve seat 2, the viscous crude or the high oil that coagulates of upper travelling valve seat 2 tops, after oil is heated, viscosity descends, and flows easily.At this moment, when hollow rod 1 under pumping unit horsehead (not drawing among the figure) drives from upper dead center position when descending, the upper travelling valve 3 and the lower travelling valve 11 that are fixed together with hollow rod 1 just leave upper travelling valve seat 2 and lower travelling valve seat 10, just promoting piston body 8 after running into upper travelling valve shelves 5 and lower travelling valve shelves 9 moves downward, this moment, fixed valve ball 14 just set sealing valve opening 16 on the fixed valve base 15 under the fluid pressure effect.Between lower travelling valve shelves 9 and the standing valve 15 be heated crude oil just by valve opening 12 and lower travelling valve 11 and lower travelling valve seat 10 and and hollow rod 1 between the gap enter piston body 8 inner chambers, and again the gap between the valve opening 4 of upper travelling valve shelves 5 and upper travelling valve 3, upper travelling valve seat 2, hollow rod 1 to the top of upper travelling valve seat 2.When hollow rod 1 was moved upward by lower dead centre, lower travelling valve 11 and upper travelling valve 3 set behind lower travelling valve seat 10 and upper travelling valve seat 2, drove piston body 8 and moved upward, and the crude oil on upper travelling valve seat 2 tops is just given rise to ground.Simultaneously, under differential pressure action, in the sleeve pipe 6 heated crude oil just the oil inlet hole 23 of the oil inlet hole 20 by screen casing 19 and screen casing cover 22 enter screen casing 19 and jack-up fixed valve ball 14 and enter between standing valve 15 and the lower travelling valve shelves 9 through the hole of standing valve covers 13 and groove and be full of by lower travelling valve shelves 9 space of being abdicated when up, in order to next stroke lifting.Heated crude oil just constantly is lifted to ground in the oil well and so forth.
The utlity model has hollow rod and pass through pump, when passing to Ac, viscous crude in the pump under the pump on the pump or the high oil that coagulates are heated simultaneously, when oil well pump pumps, can suck and extract out viscous crude or the high oil that coagulates effectively by hollow rod.
The utility model is provided by following examples.
Accompanying drawing is a structural representation of the present utility model.
The utility model comprises hollow rod 1, upper travelling valve seat 2, upper travelling valve 3, upper travelling valve shelves 5, valve opening 4, sleeve pipe 6, pump block 7, piston body 8, lower travelling valve shelves 9, lower travelling valve seat 10, lower travelling valve 11, valve opening 12, standing valve cover 13, fixed valve ball 14, fixed valve base 15, valve opening 16, tubing coupling 17, slipper seal cover 18, screen casing 19, oil inlet hole 20, oil inlet hole 21, screen casing cover 22, oil inlet hole 23, cable 24.
Hollow rod 1, piston body 8 and tubing coupling 17 can adopt the 35CrMo material to make, sleeve pipe 6, pump block 7, slipper seal cover 18, screen casing 19 can be made with the 20CrMo material, adopt special fine finishing with the part of slipper seal cover 18 hollow rods that cooperate 1, guarantee slipper seal, upper travelling valve seat 2, upper travelling valve 3, lower travelling valve seat 10, lower travelling valve 11, fixed valve base 15 can adopt the 4Cr13 material to make, upper travelling valve shelves 5, lower travelling valve shelves 9, standing valve cover 13, screen casing cover 22 can be made with the 45# steel, fixed valve ball 14 can be made with alloy tool steel, and cable 24 is a heating cable.
Claims (1)
1, a kind of hollow circulation oil well pump, comprise sleeve pipe 6, pump block 7, standing valve cover 13, fixed valve ball 14, fixed valve base 15, tubing coupling 17, screen casing 19, screen casing cover 22, the outer wall of sleeve pipe 6 is to use cement and formation consolidation together, perforation on the close sleeve pipe 6 at oil reservoir position, oil inlet hole 21 is communicated with oil reservoir, the upper end of drum shape pump block 7 is connected with oil pipe, the lower end of pump block 7 is connected with tubing coupling 17 by outside thread, the disc fixed valve base 15 of band valve opening 16 is enclosed within on the hollow rod 1, the outer rim of fixed valve base 15 is clamped in the lower end of pump block 7 by tubing coupling 17, standing valve cover 13 is a hollow hemisphere, have circular hole at the hemisphere top, have groove from circular hole along hemispheroidal warp direction, standing valve cover 13 is fixedlyed connected with fixed valve base 15, drum shape screen casing 19 is connected with screen casing cover 22 with tubing coupling 17 by outside thread, have oil inlet hole 20 on the tube wall of screen casing 19, circular screen casing cover 22 is enclosed within on the hollow rod 1, have oil inlet hole 23 on the screen casing cover 22, spherical fixed valve ball 14 is sitting on the valve opening 16 of fixed valve base 15, in the drum shape tubing coupling 17 of round boss is arranged screen casing 19, fixed valve base 15, pump block 7 links together, it is characterized in that: in pump block 7, the upper travelling valve seat 2 of band conical surface is enclosed within on the hollow rod 1 in the drum shape, upper travelling valve seat 2 is connected with piston body 8 by internal thread, the upper travelling valve shelves 5 of disc band valve opening 4 are enclosed within on the hollow rod 1, the outer rim of upper travelling valve shelves 5 is clamped between upper travelling valve seat 2 and the piston body 8, drum shape, the bottom surface has the lower travelling valve shelves 9 of valve opening 12 to be enclosed within on the hollow rod 1, lower travelling valve shelves 9 are connected with piston body 8 by internal thread, piston body 8 and pump block 7 are for being slidingly matched, the lower travelling valve seat 10 of band conical surface is enclosed within on the hollow rod 1 in the disc, the outer rim of lower travelling valve seat 10 is clamped between lower travelling valve shelves 9 and the piston body 8, the upper travelling valve 3 of the cone shape between upper travelling valve shelves 5 and upper travelling valve seat 2 and being pressed on the hollow rod 1, the lower travelling valve 11 of the cone shape between lower travelling valve shelves 9 and lower travelling valve seat 10 is pressed on the hollow rod 1, drum shape slipper seal cover 18 is enclosed within on the hollow rod 1, slipper seal cover 18 is connected with fixed valve base 15 by outside thread, cable 24 is arranged in the tubular shape hollow rod 1, and cable 24 and hollow rod 1 constitute electric loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230219 CN2204006Y (en) | 1994-09-14 | 1994-09-14 | Loop flow oil pump with hollow central part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230219 CN2204006Y (en) | 1994-09-14 | 1994-09-14 | Loop flow oil pump with hollow central part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2204006Y true CN2204006Y (en) | 1995-07-26 |
Family
ID=33842374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94230219 Expired - Fee Related CN2204006Y (en) | 1994-09-14 | 1994-09-14 | Loop flow oil pump with hollow central part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2204006Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554806A (en) * | 2020-12-05 | 2021-03-26 | 何自姐 | Self-dredging sucker rod |
-
1994
- 1994-09-14 CN CN 94230219 patent/CN2204006Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554806A (en) * | 2020-12-05 | 2021-03-26 | 何自姐 | Self-dredging sucker rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: HUAFU CO., ANSHAN, HUAFU CO., ANSHAN TO: HUAFU ELECTRICAL APPLIANCE CO., LTD., PANJIN CITY |
|
| CP03 | Change of name, title or address |
Address after: Building 1, economic and Technological Development Zone, Xinglongtai District, Liaoning, Panjin Patentee after: Huafu Electric Appliances Co., Ltd., Panjin City Address before: No. 155-8, Renmin Road, Tiexi District, Liaoning, Anshan Patentee before: Anshan Huafu company |
|
| 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 |