CN205445975U - Oil well oil gas in pit mixes suction pump - Google Patents
Oil well oil gas in pit mixes suction pump Download PDFInfo
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- CN205445975U CN205445975U CN201521113571.2U CN201521113571U CN205445975U CN 205445975 U CN205445975 U CN 205445975U CN 201521113571 U CN201521113571 U CN 201521113571U CN 205445975 U CN205445975 U CN 205445975U
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Abstract
The utility model belongs to the technical field of oil well pit shaft gas -tight, concretely relates to oil well oil gas in pit mixes suction pump, by the beam hanger coupling, the pull rod, gas -liquid exchange groove, the limit valve, the gas -tight guiding valve, the sealing washer, a valve sea, the pump barrel, the feed liquor hole, a plunger, travelling valve, gu fixed valve, the fixed valve combination forms, to present oil well gas -oil than big, the oil well is influenced seriously by gas, the airlock phenomenon takes place even, it normally works to influence the oil -well pump, brought oil well yield and lift the problem of inefficiency and the oil gas in the pit developed mixes suction pump, the utility model discloses oil well oil gas in pit mixes suction pump's special construction makes the exhaust capacity strengthen, can accomplish the effective discharge in time of the associated gas that gets into the pump barrel oil gas and polyblend the gaseous influence of solution oil well, airlock scheduling problem, improvement oil well yield and oil pumping pump efficiency for the oil well production that returns to normal.
Description
Technical field
This utility model belongs to oilfield pit shaft gas-tight technical field, is specifically related to a kind of oil well oil gas mixed extraction pump.
Background technology
Oil well gas-oil ratio is big at present, oil well is serious by gases affect, even there is gas lock phenomenon, affect oil well pump and normally work, bring oil well output and the low problem of lifting efficiency, the such as Changqing oilfields oil well Triassic system is main force's development layer position, but Triassic system oil well gas-oil ratio is big, gases affect is serious, hinders the normal performance of oil well output, causing pumping efficiency of oil pump low, energy consumption is big simultaneously.The most detrimentally, this oil well often occurs " liquid swashs " phenomenon, accelerates sucker rod, pump valve and the damage of pump cover.
The way solving gases affect conventional at present mainly has following several: one is to reduce clearance volume method, and this method can not fully meet high gas-oil ratio (HGOR) oil well production needs；Two is gas anchor partition method, and gas can not effectively be reclaimed by this method, causes the wasting of resources and environmental pollution；Three is magnetic force enforced opening gas prevention pump, and this gas prevention pump forces all youngsters to open and close by magnetic force slide block, prevents gas lock and leakage phenomena, but this technology exists the problem of the easy demagnetization of magnetic force slide block, and reliability is low.
Utility model content
The purpose of this utility model is to overcome the exhaust capacity faced in prior art not enough, the problem that the impact of " gas lock " phenomenon problem is serious.
A kind of oil well oil gas mixed extraction pump is provided for this this utility model, including beam hanger box cupling, pull bar, plunger, pump barrel, described beam hanger box cupling and pull bar unitary design, pull bar is positioned at below beam hanger box cupling, and the lower end of pull bar is connected with its upper end, and plunger is hollow-core construction, its top radially offers inlet opening, being provided with travelling valve below plunger body, travelling valve seat, at plunger body, is formed and seals；
Described pull bar stretches in pump barrel, adherent limit valve and the gas-tight guiding valve of being set with of pull bar outer wall, and described gas-tight guiding valve is in inside limit valve, and limit valve lower inside is provided with valve seat, and gas-tight slide valve seat is on valve seat, and forms sealing with pull bar；
Described plunger is adherent to be installed on inside pump barrel, is connected to standing valve inside pump barrel lower end, standing valve internally installed standing valve, described standing valve seat inside described standing valve, formed seal；
Offering axial gas-liquid exchange groove on described pull bar outer wall, the axial length of this gas-liquid exchange groove is more than the axial length of described limit valve.
The inwall of described pump barrel is provided with the stopper slot of hoop, and described limit valve outer wall lower end is provided with card tooth, and pump barrel interlocks fixing by stopper slot with card tooth with limit valve, is formed and seals.
It is provided with sealing ring between described limit valve and described pump barrel.
Described sealing ring is rubber ring.
Described inlet opening has multiple, is uniformly distributed circumferentially in plunger upper part position.
The beneficial effects of the utility model: one is that the setting of gas-tight guiding valve makes in down stroke, pump upper liquid acts on guiding valve, plunger upper part space within pump barrel forms negative pressure cavity, gas and liquid easily enter in pump barrel by suction function, enhance exhaust capacity, reduce gases affect and air-lock problem；Two is that the gas-liquid exchange groove offered makes down stroke end and upstroke incipient stage, and the exchange of a part of gas advanced person's circulation of qi promoting liquid is discharged, and enhances exhaust capacity, is not only effectively reclaimed by gas, economizes on resources, and protects environment, and has advantage stable and reliable in work.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Below with reference to accompanying drawing, this utility model is described in further details.
Fig. 1 is oil well oil gas mixed extraction pump structural representation.
Description of reference numerals: 1, beam hanger box cupling；2, pull bar；3, gas-liquid exchange groove；4, limit valve；5, gas-tight guiding valve；6, sealing ring；7, valve seat；8, pump barrel；9, inlet opening；10, plunger；11, travelling valve；12, standing valve；13, standing valve；14, stopper slot；15, card tooth.
Detailed description of the invention
Embodiment 1:
The present embodiment provides a kind of oil well oil gas mixed extraction pump, as shown in Figure 1, including beam hanger box cupling 1, pull bar 2, plunger 10, pump barrel 8, described beam hanger box cupling 1 and pull bar 2 unitary design, pull bar 2 is positioned at below beam hanger box cupling 1, the lower end of pull bar 2 is connected with plunger 10 upper end, plunger 10 is hollow-core construction, and its top radially offers inlet opening 9, and plunger 10 lower inside is provided with travelling valve 11, travelling valve 11, inside plunger 10, is formed and seals.
Pull bar 2 stretches in pump barrel 8, adherent limit valve 4 and the gas-tight guiding valve 5 of being set with of pull bar 2 outer wall, and it is internal that described gas-tight guiding valve 5 is in limit valve 4, and limit valve 4 lower inside is provided with valve seat 7, and 5, gas-tight guiding valve is on valve seat 7, and forms sealing with pull bar 2.Gas-tight guiding valve 5 used in the present embodiment is common guiding valve, and its concrete structure does not elaborates at this, mainly can realize after gas-tight guiding valve 5 cuts out, and pump barrel 8 internal piston more than 10 annular space forms negative pressure of vacuum chamber.
Plunger 10 is adherent, and to be installed on pump barrel 8 internal, is connected to standing valve 12 inside pump barrel 8 lower end, standing valve 12 internally installed standing valve 13, described standing valve 13, inside described standing valve 12, is formed and seals.
Offering axial gas-liquid exchange groove 3 on pull bar 2 outer wall, the axial length of this gas-liquid exchange groove 3 is more than the axial length of described limit valve 4.
Being connected by this mixed extraction pump in the present embodiment under flow string and enter well design position, pump beam hanger box cupling 1 is connected with sucker rod, 1 time top limit valve 4 of beam hanger box cupling.
In down stroke, gas-tight guiding valve 5 cuts out, the above fluid column of this device acts on gas-tight guiding valve 5, along with plunger 10 moves downward, pump barrel 8 internal piston more than 10 annular space forms negative pressure of vacuum chamber, and now standing valve 12 cuts out, standing valve more than 12 gas-liquid mixture backs down travelling valve 11 by suction function, entering negative pressure cavity through inlet opening 9, simultaneously after gas-liquid exchange groove 3 enters pump barrel 8 downward across limit valve 4, a part of gas first carries out gas-liquid exchange and discharges pump barrel 8 with the above liquid of this device.
In upstroke, first, when gas-liquid exchange groove 3 is in limit valve less than 4, negative pressure intracavity gas has continued gas-liquid exchange and has discharged pump barrel, and secondly travelling valve 11 is closed, and pump barrel discharged by gas-liquid mixture up gas-tight guiding valve 5 that backs down under the effect of plunger 10.
This has circulated a pumping process so that gas-liquid mixture is lifted to ground, reduces oil well gases affect simultaneously.
Embodiment 2:
It is the most crucial that structure in above-described embodiment 1 to realize its function to accomplish to seal, sealing in its structure is described in detail by the present embodiment further, in the present embodiment, the inwall of pump barrel 8 is provided with the stopper slot 14 of hoop, described limit valve 4 outer wall lower end is provided with card tooth 15, pump barrel 8 interlocks fixing by stopper slot 14 with card tooth 15 with limit valve 4, formed and seal, well design position is entered under flow string being connected by this mixed extraction pump in the present embodiment, pump beam hanger box cupling 1 is connected with sucker rod, 1 time top limit valve 4 of beam hanger box cupling, limit valve 4 lower end card tooth 15 interlocks fixing with the stopper slot 14 of pump barrel 8.
Further, being provided with sealing ring 6 between limit valve 4 and described pump barrel 8, sealing ring 6 herein can be rubber ring, and the setting of sealing ring makes the sealing between limit valve 4 and described pump barrel 8 more intact, and the work for this device provides conditions and environment.
In the present embodiment, also the inlet opening 9 on plunger 10 top of hollow-core construction is illustrated, in the present embodiment, inlet opening 9 has multiple, is uniformly distributed circumferentially at plunger 10 upper position, and multiple inlet opening 9 circumferences are uniformly distributed, do not affect feed liquor speed, will not produce pressure unbalanced phenomena yet.
In sum, this oil well oil gas mixed extraction pump of the present utility model, it is a kind of big for current oil well gas-oil ratio, oil well is serious by gases affect, even there is gas lock phenomenon, affect oil well pump normally to work, bring oil well output and the low problem of lifting efficiency and the down-hole oil gas mixed extraction pump developed.The special construction of this utility model oil well oil gas mixed extraction pump, one is that the setting of gas-tight guiding valve makes in down stroke, pump upper liquid acts on guiding valve, plunger upper part space within pump barrel forms negative pressure cavity, gas and liquid easily enter in pump barrel by suction function, enhance exhaust capacity, reduce gases affect and air-lock problem；Two is that the gas-liquid exchange groove offered makes down stroke end and upstroke incipient stage, and the exchange of a part of gas advanced person's circulation of qi promoting liquid is discharged, and enhances exhaust capacity, is not only effectively reclaimed by gas, economizes on resources, and protects environment, and has advantage stable and reliable in work.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.
Claims (5)
1. an oil well oil gas mixed extraction pump, including beam hanger box cupling (1), pull bar (2), plunger (10), pump barrel (8), it is characterized in that: described beam hanger box cupling (1) and pull bar (2) unitary design, pull bar (2) is positioned at beam hanger box cupling (1) lower section, the lower end of pull bar (2) is connected with plunger (10) upper end, plunger (10) is hollow-core construction, its top radially offers inlet opening (9), plunger (10) lower inside is provided with travelling valve (11), travelling valve (11) seat is internal at plunger (10), is formed and seals；
Described pull bar (2) stretches in pump barrel (8), pull bar (2) outer wall is adherent is set with limit valve (4) and gas-tight guiding valve (5), it is internal that described gas-tight guiding valve (5) is in limit valve (4), and limit valve (4) lower inside is provided with valve seat (7), and gas-tight guiding valve (5) seat is on valve seat (7)；
Described plunger (10) is adherent is installed on pump barrel (8) inside, standing valve (12) it is connected to inside pump barrel (8) lower end, standing valve (12) internally installed standing valve (13), described standing valve (13) seat is internal at described standing valve (12), is formed and seals；
Offering axial gas-liquid exchange groove (3) on described pull bar (2) outer wall, the axial length of this gas-liquid exchange groove (3) is more than the axial length of described limit valve (4).
2. oil well oil gas mixed extraction pump as claimed in claim 1, it is characterized in that: the inwall of described pump barrel (8) is provided with the stopper slot (14) of hoop, described limit valve (4) outer wall lower end is provided with card tooth (15), pump barrel (8) interlocks fixing by stopper slot (14) with card tooth (15) with limit valve (4), is formed and seals.
3. oil well oil gas mixed extraction pump as claimed in claim 1 or 2, it is characterised in that: it is provided with sealing ring (6) between described limit valve (4) and described pump barrel (8).
4. oil well oil gas mixed extraction pump as claimed in claim 3, it is characterised in that: described sealing ring (6) is rubber ring.
5. oil well oil gas mixed extraction pump as claimed in claim 1 or 2, it is characterised in that: described inlet opening (9) has multiple, is uniformly distributed circumferentially at plunger (10) upper position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113571.2U CN205445975U (en) | 2015-12-29 | 2015-12-29 | Oil well oil gas in pit mixes suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113571.2U CN205445975U (en) | 2015-12-29 | 2015-12-29 | Oil well oil gas in pit mixes suction pump |
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| Publication Number | Publication Date |
|---|---|
| CN205445975U true CN205445975U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521113571.2U Active CN205445975U (en) | 2015-12-29 | 2015-12-29 | Oil well oil gas in pit mixes suction pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570102A (en) * | 2015-12-29 | 2016-05-11 | 中国石油天然气股份有限公司 | Underground oil and gas mixed pumping pump for oil well |
-
2015
- 2015-12-29 CN CN201521113571.2U patent/CN205445975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570102A (en) * | 2015-12-29 | 2016-05-11 | 中国石油天然气股份有限公司 | Underground oil and gas mixed pumping pump for oil well |
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