CN2268123Y - Lang pump-cylinder sucker rod oil-producing sucker-rod sealing device - Google Patents
Lang pump-cylinder sucker rod oil-producing sucker-rod sealing device Download PDFInfo
- Publication number
- CN2268123Y CN2268123Y CN 96240652 CN96240652U CN2268123Y CN 2268123 Y CN2268123 Y CN 2268123Y CN 96240652 CN96240652 CN 96240652 CN 96240652 U CN96240652 U CN 96240652U CN 2268123 Y CN2268123 Y CN 2268123Y
- Authority
- CN
- China
- Prior art keywords
- swab
- sucker
- rod
- oil
- draw bar
- 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
Links
Abstract
The utility model relates to an oil-extracting sucker-rod sealing device for a long pump-cylinder sucker rod used for oil extraction. A rope-typed sucker-rod oil extraction is a novel oil extraction method; the sucker-rod sealing device aims to solve the problems that when the sucker-rod falls towards the bottom of a well, a sealing face shrinks inwards to cause a gap to appear between the sucker-rod and an oil pipe, and the sucker-rod is easy to fall. When lifted, the sealing face of the sucker-rod expands outwards to achieve the purpose of the gap between the sucker-rod and the oil pipe is sealed or a smaller gap exists, so that liquid leakage quantity can be reduced, and compared with the existing method, liquid production amount can be enhanced by 1-4 times.
Description
The utility model relates to a kind of long pump barrel swab oil recovery swab sealing device of oil exploitation.
In the middle of the oil exploitation, the artificial mechanism oil production method is a lot, and it is exactly one of them that swab recovers the oil.Swab structure commonly used is very simple, generally be to be made of wire rope, weighted lever, swab etc., swab slides up and down in oil pipe, when carrying on the swab, one section crude oil that the swab top is built up, proposed well by swab, reach the purpose of oil recovery, but in order to make swab can successfully be put into oil reservoir, must allow the internal diameter of swab diameter less than oil pipe, therefore the gap that 2～4mm is arranged usually, drains back to the shaft bottom from the gap of swab and oil pipe drawing up the crude oil that a great deal of must be arranged when carrying.
Though people have adopted the described mechanical valve as (CN2109438U 9121774.X) on the oil well pump pump valve, can not when plunger upward and downward, change the diameter of plunger, thereby change the gap between plunger and the pump barrel.
The purpose of this utility model makes swab diameter when transferring diminish exactly, makes between swab and the oil pipe gap to occur, reduces the wearing and tearing of transferring resistance and swab, when on swab, carrying, it is big that diameter becomes, and eliminates the gap between swab and pipe aperture, and the crude oil that the swab top is accumulated leaks go back to the shaft bottom less.
Now in conjunction with the accompanying drawings the utility model is illustrated:
Fig. 1 is the first half of swab structure of the present utility model.
Fig. 2 is the latter half of swab structure of the present utility model.
Fig. 3 is the joint construction of swab structure split shed sealing mat of the present utility model and connecting pin.
In Fig. 1 and Fig. 2, in the oil pipe (1), lift steel wire rope (2) and connect swab connector (4) and upper with upper weighted lever (3) Weighted lever (3) connects, and valve bonnet (5), valve ball (6) and valve seat (7) are housed in the swab connector (4), and intermediate draw bar (12) and swab connect Fitting (4) is connected, and locking nut (8) is connected 4 with intermediate draw bar (12) with the swab connector) connection locking; In intermediate draw bar (12) On having of installing of order from up to down: packing ring (10), O shape circle (9) is housed in packing ring (10), sealing gasket (11) is if having on it Do the upper piston (13) of the sealing tooth (14) that is supported by steel wire (15), lower seal pad (16), intermediate draw bar (1 2) tapering position On upper shed sealing gasket (17) and the under shed sealing gasket (19) that is connected by pin (18) is housed, be adjusting pad (20) then, fill The lower piston (21) of some sealing teeth (14) that supported by steel wire (15) is arranged, and spring base (22) is at intermediate draw bar (12) and spring Between the seat (22) spring (23) is housed; Intermediate draw bar (12) porose tubulose in the middle of making, by screw thread be all the lower of tubulose Weighted lever (24) connects, and middle duct is the swab oil inlet passage.
Put forward the situation of steel wire rope on shown in Fig. 1 and Fig. 2 being, filled one section crude oil in the oil pipe (1) above swab this moment, If 300～400m is arranged, head of liquid makes packing ring (10) and O shape circle (9), upper sealing gasket (11) and upper piston (13), lower close Packing (16), upper shed sealing gasket (17) and under shed sealing gasket (19), adjusting pad (20) and lower piston (21) and spring base (22) move downward, Compress Spring (23), until till the plane contact of the lower surface of spring base (22) and intermediate draw bar (12), At this moment, valve ball (6) is sitting on the valve seat (7). Because the effect on intermediate draw bar (12) and inclined-plane, tapering position makes the close up and down of opening Packing (17) and (19) are to extending out, and it is big that diameter becomes, and seal up the slit of swab and oil pipe, stop crude oil to the leakage of down-hole. In addition, the some sealing teeth (14) that supported by steel wire (15) that are equipped with on upper lower piston (13) and (21) have elasticity, play and scrape The effect of wax. The more conventional swab of swab length lengthens, and production efficiency is improved greatly.
When transferring swab, under the action of gravity of up and down weighted lever (3) and (24) and intermediate draw bar (12), swab has reduced the pressure to spring (23) simultaneously to dropping, the elastic force of spring (23) promotes spring base (22) and moves upward, simultaneously the sealing mat (11) of swab and (16) reach frictional force between (17) and (19) and the oil pipe (1) and also join and make in the ranks that sealing mat moves up, so upper and lower opening sealing mat (17) and (19) are moved on the tapering position of intermediate draw bar (12), along with the tapering diameter reduces, the diameter of sealing mat (17) and (19) reduces and reduces with the opening aperture, make the gap between swab and the oil pipe become big, the resistance force diminishes that moves down, when swab passes oil reservoir, the relative swab of oil stream moves upward, valve ball (6) is washed in duct under the warp in the middle of weighted lever (24) and the intermediate draw bar (12) open, flow to the swab top through valve seat, swab sinks to the oil reservoir bottom, so built up one section crude oil fluid column above swab.Swab moves up under the lifting that lifts wire rope, fluid column and valve ball deadweight are sitting on the valve seat (7) valve ball (6), have closed the passage of letting out under the fluid column, and each sealing mat is compressed under the effect of fluid column, it is big that external diameter becomes, especially upper and lower opening sealing mat (17) and (19) are under the effect on inclined-plane, the long position of intermediate draw bar (12) awl, and external diameter changes maximum, makes it to be attached on the inwall of oil pipe (1), sealed fluid column, output is improved greatly, under same hoisting power, adopt liquid measure and improve 1～4 times.
Fig. 3 is the A-A sectional view of Fig. 2, there is shown the upper and lower opening sealing mat (17) and (19) that are arranged in oil pipe (1) and is linked together by pin (18), and can see the opening of two opening sealing mats.
Rope type swab oil production method has following characteristics:
1. need not oil well pump pump barrel and sucker rod, undertake the mission of pump barrel by oil pipe, wire rope has been undertaken the mission of sucker rod,
Swab promptly is an oil pump plunger piston;
2. rope service-life is long because rope type general 80 dash/day to 160 dash/day between, and oil pumper dash/arrives 8600
20000 dash/day between, stress-number of cycles is low, the life-span is long naturally;
3. swab is easy to change;
4. complete machine weight is little;
5. may be used on deep-well, routine has rod-type oil pumping mode, and when well depth, the down-hole load is big, and sucker rod is loaded below
Effect under can extend, as the 2000m well depth, elongation rate is 0.5 ‰, then elongation is 1m, effectively the dashing of oil well pump
Journey just reduces 1m;
6. stroke is long, and the swabbing action time is long, and the pumping velocity height generally is 5m/s, and the stratum is produced the long period, bigger
Swabbing action, help crude oil by oozing out in the stratum;
7. be easy to promote, be not limited to the crude oil of certain class viscosity in each oil field, the whole nation.
Claims (1)
1. form the recover the oil sealing device of swab of long tube swab by oil pipe, wire rope, weighted lever, pump valve for one kind, it is characterized in that:
A. in the oil pipe (1), lifting wire rope (2) is connected with last weighted lever (3), swab connector (4) is connected with last weighted lever (3), valve bonnet (5), valve ball (6) and valve seat (7) are housed in the swab connector (4), intermediate draw bar (12) is connected with swab connector (4), and locking nut (8) is with the locking that is connected of intermediate draw bar (12) and swab connector (4);
That b. from up to down installs in proper order on intermediate draw bar (12) has: packing ring (10), O shape circle (9) is housed in packing ring (10), sealing mat (11), the upper piston (13) that some sealing teeth (14) that supported by steel wire (15) are arranged on it, lower seal pad (16), the upper shed sealing mat (17) and the under shed sealing mat (19) that are connected by pin (18) are housed on intermediate draw bar (12) the tapering position, be adjusting pad (20) then, the lower piston (21) of some sealing teeth (14) that supported by steel wire (15) is housed, spring base (22) is equipped with spring (23) between intermediate draw bar (12) and spring base (22);
C. intermediate draw bar (12) is made middle porose tubulose, is connected with the following weighted lever (24) that is all tubulose by screw thread, and middle duct is the swab oil inlet passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96240652 CN2268123Y (en) | 1996-09-20 | 1996-09-20 | Lang pump-cylinder sucker rod oil-producing sucker-rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96240652 CN2268123Y (en) | 1996-09-20 | 1996-09-20 | Lang pump-cylinder sucker rod oil-producing sucker-rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2268123Y true CN2268123Y (en) | 1997-11-19 |
Family
ID=33915263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96240652 Expired - Fee Related CN2268123Y (en) | 1996-09-20 | 1996-09-20 | Lang pump-cylinder sucker rod oil-producing sucker-rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2268123Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022098A (en) * | 2010-09-21 | 2011-04-20 | 大庆油田有限责任公司 | Process for realizing oil production by flexible continuous sucker rod |
| CN109296341A (en) * | 2018-12-10 | 2019-02-01 | 赵峰 | A kind of failure oil well oil conduit inside crude oil fishing device |
-
1996
- 1996-09-20 CN CN 96240652 patent/CN2268123Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022098A (en) * | 2010-09-21 | 2011-04-20 | 大庆油田有限责任公司 | Process for realizing oil production by flexible continuous sucker rod |
| CN109296341A (en) * | 2018-12-10 | 2019-02-01 | 赵峰 | A kind of failure oil well oil conduit inside crude oil fishing device |
| CN109296341B (en) * | 2018-12-10 | 2023-09-15 | 赵峰 | Crude oil salvaging device in oil pipe of fault oil well |
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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 |