CN2735038Y - Long-plug ring seal hydraulic feedback oil well pump - Google Patents
Long-plug ring seal hydraulic feedback oil well pump Download PDFInfo
- Publication number
- CN2735038Y CN2735038Y CN 200420070127 CN200420070127U CN2735038Y CN 2735038 Y CN2735038 Y CN 2735038Y CN 200420070127 CN200420070127 CN 200420070127 CN 200420070127 U CN200420070127 U CN 200420070127U CN 2735038 Y CN2735038 Y CN 2735038Y
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- long
- pump
- oil well
- ring
- well pump
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- Expired - Fee Related
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Abstract
The utility model discloses a long-plug ring seal hydraulic feedback oil well pump, comprising a sand scraping ring 13, a metal ring 14 and a non-metal ring 15. The long-plug ring seal hydraulic feedback oil well pump is characterized in that: a seal section is respectively provided with a plurality of sand scraping rings 13, metal rings 14 and non-metal rings 15 which are used for improving the pumping efficiency, prolonging the using period and improving various performances. The pump is suitable for various oil wells. Due to the fact that the sealing is good, the pumping efficiency is high, the seal resistance is small, the machine part is enduring and wear-resistant, the sand blocking is not easy to happen, and the using period is long, the wide adaptability of the hydraulic feedback pump is strengthened. The long-plug ring seal hydraulic feedback oil well pump is the improvement of the oil pump; the long-plug ring seal hydraulic feedback oil well pump has reasonable design, simple structure, an easy manufacturing, convenient operation and good effect. Compared with the general pump, the service life of the pump can be improved for 3-5 times. The long-plug ring seal hydraulic feedback oil well pump has the features of non-perishable sand blocking, corrosion protection, high pumping efficiency, long service life, and has the feature that the eccentric abrasion of the rod and the pipe is reduced; the long-plug ring seal hydraulic feedback oil well pump is the classic sand-proof highly effective pump at present.
Description
Affiliated field
The utility model relates to the oil well liquid raising device-fluid power feedback oil well pump in the petroleum production, particularly long plug ring sealing liquid force feedback oil well pump.
Background technique
The sealing that with the pumping unit is the fluid power feedback oil well pump of power at present realizes being mostly cooperating with not waiting path length pump barrel with short column plug (general 0.9-1.2m).The area of contact size and the matching gap that depend on plunger and pump barrel internal surface in sealing intensity and working life, so still there is following defective at present:
1, it is unified to use benchmark, machining benchmark to be difficult to.Pump barrel more is difficult to detect because elongated (internal diameter ∮ 32mm-∮ 95mm, 4.5 meters-7.2 meters of tube lengths) internal surface not only is difficult to processing, and especially straightness accuracy more is difficult to detect, and promptly enables to detect and can't proofread and correct again; Pump barrel superdeep holes heat treatment (surface hardening process) internal surface is difficult to evenly, and because of hardness differs, then wear intensity differs during use; Because the sealing of plunger and pump barrel internal surface is easy to wearing and tearing, can't compensate again after the wearing and tearing, so wastage day is big, because the big pump efficiency reduction in gap, and, cause pump detection period short, low in economic efficiency easily because of the stuck plunger of sand; Because sealing area is worn and torn easily, wastage increases, and general pump is difficult to be used in the deep layer oil mining, and the use field is restricted.
2, present fluid power feedback pump mainly reduces the descending resistance of pumping unit by the fluid power feedback, also will reduce pump efficiency and guarantee to alleviate pumping unit up-downgoing resistance with enlarging seal clearance when heavy crude producing, and therefore, pump efficiency is low, sand card rate height, pump detection period are short.
For fluid power feedback oil well pump, owing to theory and technical reason, people's door dare not adopt long plug ring envelope for a long time, realizes the purpose of high pump efficiency long period and light smooth running, improve the function of use and the effect of fluid power feedback oil well pump, therefore demand urgently improving.
The model utility content
The utility model purpose is at the prior art deficiency, and a kind of long plug ring sealing liquid force feedback oil well pump of being made up of the ring of strike-ofing, metal ring and nonmetallic ring is provided, and is used to improve pump efficiency, prolongs life cycle and improves various performances.
Long plug ring sealing liquid force feedback oil well pump comprising the ring 13 and metal ring 14 and nonmetallic ring 15 of strike-ofing, and it is characterized in that seal section sets gradually some roads strike-off ring 13 and metal ring 14 and nonmetallic ring 15.
For drawbacks such as the standard that solves above-mentioned oil well pump existence differ, difficulty of processing is big, sealing is poor, wearing and tearing can't compensate, with exploitation high thick sand control field with alleviate rod and tube partial-wear, research has been made ring type sealing pump barrel and has been cooperated the long plug ring sealing liquid of long-plunger formula force feedback oil well pump.This pump is fit to various oil wells to be used.Because good seal pump efficiency height and hermetic resistance is little, parts are wear-resisting lastingly, be difficult for the sand card, life cycle is long, more strengthened the extensive adaptability that fluid power feeds back pump.
The utility model is the improvement of oil well pump, and it is reasonable in design, and is simple in structure, makes easily, easy to use, effective, proves that by site tests such as some oil fields concrete manifestation goes out following outstanding feature:
1, good seal performance: because the seal ring of being made up of senior high-abrasive material spring ring compensation device has in addition guaranteed good seal.Experimental pressure 23Mpa ne-leakage, thus this pump off grade difference, all above former whole tube pump seal standard.
2, the high pump efficiency cycle is long: because sealing is tight, seal ring is made by high abrasion resisting material, and is in compensating coefficient, does not have leakage, is in the operation of high pump efficiency state for a long time, and the general pump efficiency of experimental result proof improves 20-30%.
3, service cycle is long: lasting because of sealing, the up-downgoing resistance is little, wearing and tearing are little, this pump is long service cycle, is 3-5 times of conventional pump.
4, sand controlling result is good: owing to strike-off and the auto-compensating metal ring, sand grains can not enter pump barrel, and sand controlling result is good.
5, being fit to the serious oil well of high temperature high viscous oil and rod and tube partial-wear uses.
6, easily manufacturing: the manufacturing standard is easy to control, and quality of product is reliably guaranteed.
7, operation is simple, time saving and energy saving, no specific (special) requirements, but adopt gas injection of thick well fixed tubular column and positive well-flushing in gas injection, economic benefit is obvious.
Description of drawings
Accompanying drawing 1 of the present invention is the working principle structural representation; Fig. 2 is the example structure schematic representation; Fig. 3 is long plug ring envelope sealed structural representation.Wherein sucker rod 1, oil pipe 2, seal assembly 3, upper plug 4, go up pump barrel 5, travelling valve 6, lower plunger 7, pump barrel 8, reducer union 9 down, go up oil-release valve cover 10, upper pump head 11, bottom valve assembly 12, strike-off ring 13, metal ring 14, nonmetallic ring 15, ring set 16.
Embodiment
Example 1, the long plug ring sealing liquid of I type force feedback oil well pump are to be provided with 1 road strike-off ring 13 and 3 road metal rings 14 and 3 road nonmetallic rings 15.
Example 2, metal ring 14 are to compensate metal ring automatically; Nonmetallic ring 15 is to compensate nonmetallic ring automatically.
The ring of strike-ofing is made by cemented carbide, and is very little with plunger fitting clearance, and substantially horizontal can play, guarantees not to be subjected to jam after plunger is lowered to, and its effect prevents that sand grains from entering seal section.
Metal ring is the metal ring of being made by the corrosion resistant metallic material of high abrasion with automatic compensation function, and compensation sealing ring wearing and tearing at any time and pressure so sealing is lasting, are the important steps that guarantees that pump efficiency is high and life cycle is long.
Nonmetallic ring is the seal ring of being made by high abrasion corrosion-resistant and high temperature resistant (≤300 ℃) material with automatic compensation function, because front end is strike-off and the metallic seal ring protection, it works in the no sand environment, can give full play to its wear-resisting and characteristic good seal.Because this ring has automatic compensation function, but compensate for wear keep-up pressure, so sealing is the another important step that guarantees that high pump efficiency and life cycle are grown lastingly.
Because adopt ring type sealing pump barrel, sealing drum can be very short, general 350mm-400mm is long, then must cooperate with long-plunger, so be called long plug ring sealing liquid force feedback oil well pump.The long-plunger surface is a surfacing, and hardness is evenly wear-resisting lasting.
Claims (4)
1, long plug ring sealing liquid force feedback oil well pump comprising the ring 13 and metal ring 14 nonmetallic rings 15 of strike-ofing, and it is characterized in that seal section sets gradually some roads strike-off ring 13 and metal ring 14 and nonmetallic ring 15.
2, long plug ring sealing liquid force feedback oil well pump according to claim 1 is characterized in that being provided with 1 road strike-off ring 13 and 3 road metal rings 14 and 3 road nonmetallic rings 15.
3, long plug ring sealing liquid force feedback oil well pump according to claim 1 and 2 is characterized in that metal ring 14 is for compensating metal ring automatically; Nonmetallic ring 15 is to compensate nonmetallic ring automatically.
4, long plug ring sealing liquid force feedback oil well pump according to claim 3 is characterized in that sealing drum can be very short, and general 350mm-400mm is long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070127 CN2735038Y (en) | 2004-08-05 | 2004-08-05 | Long-plug ring seal hydraulic feedback oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070127 CN2735038Y (en) | 2004-08-05 | 2004-08-05 | Long-plug ring seal hydraulic feedback oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2735038Y true CN2735038Y (en) | 2005-10-19 |
Family
ID=35264914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420070127 Expired - Fee Related CN2735038Y (en) | 2004-08-05 | 2004-08-05 | Long-plug ring seal hydraulic feedback oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2735038Y (en) |
-
2004
- 2004-08-05 CN CN 200420070127 patent/CN2735038Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20060609 Pledge (preservation): Preservation |
|
| PD01 | Discharge of preservation of patent |
Date of registration: 20070419 Pledge (preservation): Preservation |
|
| 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 |