CN211174070U - Injection-production blowout-prevention oil well pump - Google Patents
Injection-production blowout-prevention oil well pump Download PDFInfo
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- CN211174070U CN211174070U CN201921567863.1U CN201921567863U CN211174070U CN 211174070 U CN211174070 U CN 211174070U CN 201921567863 U CN201921567863 U CN 201921567863U CN 211174070 U CN211174070 U CN 211174070U
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Abstract
The utility model relates to an injection and production blowout prevention oil well pump. The pneumatic control valve comprises a pump cylinder assembly, an upper traveling valve assembly, a fixed valve assembly, a middle steam injection sliding valve device and a blowout preventer, wherein a sliding valve outer protecting pipe and a flow guide pipe are sleeved on an upper short pump cylinder, a gas injection hole is formed in the upper short pump cylinder in the flow guide pipe, a sliding valve body is sleeved on the upper short pump cylinder in the sliding valve outer protecting pipe, a first compression spring is sleeved outside the sliding valve body, a ball head seal is arranged on the inner wall of the sliding valve outer protecting pipe above the first compression spring, and a steam injection channel is formed between the inner side of the ball head seal and the upper short pump. The utility model discloses accessible oil-well pump injects steam into to the oil well to the soaking well in-process, the function is good is prevented spouting of oil-well pump.
Description
Technical Field
The utility model relates to an oil-well pump technical field, specifically speaking relate to an injection is adopted and is prevented spouting oil-well pump.
Background
In the thick oil area, the oil well pump can be blocked in the oil pumping process due to the high viscosity of crude oil. The thickened oil area is developed mainly by steam huff and puff, and the viscosity of crude oil is reduced, the oil pumping flow is improved and the blockage of an oil well pump is reduced by injecting high-temperature steam. However, with the development of steam stimulation, the oil well needs to be pulled out during steam injection, so that when steam is injected, oil is prevented from being sprayed out of the oil well due to high steam injection pressure in the oil well. The oil pump is reinstalled and dismantled in the operation process, the process is complicated to avoid causing crude oil excessive, polluted environment in dismantlement, the installation.
Disclosure of Invention
An object of the utility model is to solve the above-mentioned problem, provide an annotate and adopt and prevent spouting oil-well pump, its accessible oil-well pump pours into steam into toward the oil well into to the braising well in-process, preventing spouting of oil-well pump is functional good.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
an injection-production blowout-prevention oil well pump is characterized by comprising a pump cylinder assembly, a traveling valve assembly, a fixed valve assembly, a middle steam-injection sliding valve device and a blowout-prevention device,
the pump cylinder assembly comprises a pump cylinder coupling, an upper short pump cylinder, a lower short pump cylinder and a bottom pipe, wherein the upper short pump cylinder and the lower short pump cylinder are connected by the pump cylinder coupling, and the lower end of the lower short pump cylinder is connected with the bottom pipe through the pump cylinder coupling;
the steam injection slide valve device is arranged below the upper short pump barrel through an oil pipe coupling, the oil pipe coupling is provided with a steam inlet hole, the steam injection slide valve device comprises a guide pipe, a valve seat joint, a ball head seal and a slide valve body with an inner hole seal, the air-assisted pneumatic control valve comprises a first compression spring, a slide valve outer protecting pipe and a stroke limiting sleeve, wherein a guide pipe is connected with the lower part of an upper short pump barrel through a pump barrel coupling, the upper short pump barrel is sleeved with the slide valve outer protecting pipe and the guide pipe, the upper short pump barrel inside the guide pipe is provided with an air injection hole, the upper short pump barrel inside the slide valve outer protecting pipe is sleeved with a slide valve body, the slide valve body is connected with the upper short pump barrel through a valve seat joint, the slide valve body is sleeved with the first compression spring, the inner wall of the slide valve outer protecting pipe above the first compression spring is provided with a ball head seal, a steam injection channel is arranged between the inner side of the ball head seal and the upper short pump barrel, the steam injection channel extends to;
the upper traveling valve assembly is arranged at the upper end of the long plunger, the long plunger is arranged in the lower short pump barrel and the bottom pipe, the traveling valve assembly comprises a traveling valve seat and a traveling valve ball, and the traveling valve ball is arranged in the hollow pull rod above the traveling valve seat;
the blowout preventer is arranged at the lower part of the bottom pipe, and the upper part of the fixed valve assembly comprises an upper joint, a positioning sleeve, a guide rod, a pressing sleeve, a second compression spring, a pull rod, a shaft pin, a pressing block, a support body, a mandrel, a lower floating valve seat, a hemisphere, a flow guide nut and a lower joint; the upper joint is connected with the bottom of the bottom pipe through a pump barrel coupling, and the upper joint is arranged at the foremost end of the positioning sleeve; the front end of the guide rod is connected with the upper joint; the pressing sleeve is arranged on the positioning sleeve; the second compression spring is connected with the guide rod; the pull rod is connected with the tail end of the guide rod; the shaft pin is connected with the pressing block; the pressing block is arranged on the supporting body; the mandrel is connected with the pull rod; the downstream valve seat is arranged on the positioning sleeve; the hemisphere is connected with the mandrel; the flow guiding nut is connected with the hemisphere; the lower joint is arranged at the extreme end of the positioning sleeve.
The fixed valve assembly is arranged at the lower part of the blowout preventer and comprises a pump barrel valve cover, a pump barrel valve joint, a fixed valve ball and a fixed valve seat, the pump barrel valve cover is connected with the lower joint of the blowout preventer through the pump barrel valve joint, and the fixed valve ball and the fixed valve seat are arranged inside the pump barrel valve cover.
The utility model discloses a theory of operation and operating method:
when oil is normally extracted, the working principle is the same as that of a conventional tubular oil well pump;
the bottom of a pump cylinder valve cover of the fixed valve assembly is provided with an oil inlet, and the top of the upper short pump cylinder is provided with an oil outlet;
during the upper stroke, the sucker rod drives the long plunger to move upwards, the upper movable valve assembly is closed, the volume of the pump cavity is increased, the pressure is reduced, the fixed valve assembly is opened, and the underground oil enters the pump cavity;
during the lower stroke, the sucker rod pushes the long plunger to move downwards, the volume of a pump cavity is reduced, the pressure is increased, the fixed valve assembly is closed, the upper movable valve assembly is opened, and oil in the pump cavity is discharged to the upper part of the pump; the long plunger piston does not stop reciprocating up and down, so that the purpose of extracting crude oil from the underground to the ground is achieved.
When steam is required to be injected, the whole set of the sucker rod is put down to the bottom, steam is injected from the oil outlet, and the steam enters the oil well from the gas injection hole through the steam injection channel; when the pumping needs to be rotated, the upper lifting sucker rod string is connected with the pumping unit to rotate to pump oil normally.
Compared with the prior art, the utility model has the beneficial characteristics that:
(1) when the injection and production blowout-prevention oil well pump normally produces oil, the long plunger always seals the steam injection hole in the reciprocating process of the up-down stroke, and the sliding valve body keeps relatively static and is in a closed state; the semispherical sealing pair of the blowout preventer is also in an opening state under the action of the second compression spring and the gravity of the semispherical sealing pair, and the oil inlet channel is completely opened; the oil inlet process and the oil discharge process are the same as those of a conventional pipe oil pump. When the pumping and steam injection are required to be stopped, the pumping rod is lowered, the long plunger moves downwards, the lower joint of the long plunger is contacted with a pressing sleeve of the blowout preventer, the pressing sleeve moves downwards under the action of the gravity of the whole pumping rod, the pull rod rotates around a shaft pin, the pull rod and the mandrel drive a hemisphere to move upwards to be close to a lower movable valve seat, and a channel is closed; the downstream valve cover of the long plunger is positioned at the lower end of the steam injection hole of the steam injection coupling, the steam injection channel is completely opened, the steam injection operation can be carried out at the moment, the second compression spring slides downwards under the pressure action of the slide valve body of the slide valve device, and the steam injection channel is opened; when steam injection is stopped and a well needs to be closed, the blowout preventer is always in a closed state, the slide valve body is timely reset and closed under the action of underground pressure and a second compression spring, double sealing of an inner hole and a ball head is achieved, and a blowout preventing function is achieved.
(2) The pump adopts a structure of a long plunger, an upper short pump cylinder and a lower short pump cylinder, the long plunger is always positioned at the upper end of the pump cylinder in the up-down reciprocating stroke, so that sand blockage is not easy to cause, and the pump has a sand prevention function;
(3) when the pump is checked, the sucker rod and the long plunger are lifted out of the oil pipe, and the crude oil in the pipe column is discharged underground through the steam injection hole, so that the oil drainage function in the pump cylinder is realized.
(4) Conventional oil-well pump will wait to annotate vapour and stop spouting the back, proposes to annotate the vapour tubular column and just can lower the pump and change and take out, the utility model discloses make full use of heat energy and effective oil recovery period, annotate the stationary tubular column after the steam soaking measure and can change and take out, not only prevented the environmental pollution of oil reservoir and well site, moreover significantly reduced the work load, realized the pollution-free purpose of output increase and consumption reduction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an injection-production blowout-preventing oil well pump of the present invention;
fig. 2 is a schematic structural view of the steam injection slide valve device of the present invention;
FIG. 3 is a schematic view of the blowout preventer of the present invention;
reference numerals: pump barrel coupling-11, upper short pump barrel-12, lower short pump barrel-13 and bottom pipe-14;
a steam injection slide valve device-2, a guide pipe-21, a valve seat joint-22, a ball head seal-23, a slide valve body-24 with a sealed inner hole, a first compression spring-25, a slide valve outer protecting pipe-26, a stroke limit sleeve-27, a steam injection channel-28 and a steam inlet hole-29;
an upper traveling valve assembly-3, a long plunger-31, a traveling valve seat-32, a traveling valve ball-33 and a hollow pull rod-34;
the blowout preventer comprises a blowout preventer body-4, an upper connector-41, a positioning sleeve-42, a guide rod-43, a pressing sleeve-44, a second compression spring-45, a pull rod-46, a shaft pin-47, a pressing block-48, a support body-49, a mandrel-50, a downstream valve seat-51, a hemisphere-52, a diversion nut-53 and a lower connector-54;
a fixed valve assembly-6, a pump barrel valve cover-61, a pump barrel valve joint-62, a fixed valve ball-63 and a fixed valve seat-64.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
Referring to the description as shown in figures 1 to 3,
an injection-production blowout-prevention oil well pump is characterized by comprising a pump cylinder assembly, an upper traveling valve assembly, a fixed valve assembly, a middle steam injection sliding valve device and a blowout prevention device,
the pump cylinder assembly comprises a pump cylinder coupling 11, an upper short pump cylinder 12, a lower short pump cylinder 13 and a bottom pipe 14, wherein the upper short pump cylinder 12 and the lower short pump cylinder 13 are connected by the pump cylinder coupling 11, and the lower end of the lower short pump cylinder 13 is connected with the bottom pipe 14 through the pump cylinder coupling;
the steam injection slide valve device 2 is arranged below the upper short pump barrel through an oil pipe coupling, the oil pipe coupling is provided with a steam inlet hole 29, the steam injection slide valve device comprises a guide pipe 21, a valve seat joint 22, a ball head seal 23, a slide valve body 24 with an inner hole seal, a first compression spring 25, a slide valve outer protecting pipe 26 and a stroke limiting sleeve 27, the guide pipe 21 is connected with the lower part of the upper short pump barrel through the pump barrel coupling, the upper short pump barrel is sleeved with the slide valve outer protecting pipe 26 and the guide pipe 21, the upper short pump barrel inside the guide pipe 21 is provided with a gas injection hole 211, the upper short pump barrel inside the slide valve outer protecting pipe 26 is sleeved with the slide valve body 24, the slide valve body 24 is connected with the upper short pump barrel through the valve seat joint 22, the slide valve body 24 is sleeved with the first compression spring 25, the ball head seal 23 is arranged on the inner wall of the slide valve outer protecting pipe 26 above the first compression spring 25, a steam injection channel 28 is arranged between, a stroke limiting sleeve 27 is arranged on the inner wall of the bottom of the outer protecting pipe 26 of the slide valve;
the upper traveling valve assembly 3 is arranged at the upper end of the long plunger 31, the long plunger 31 is arranged inside the lower short pump barrel and the bottom pipe, the traveling valve assembly comprises a traveling valve seat 32 and a traveling valve ball 33, and the traveling valve ball 33 is arranged in a hollow pull rod 34 above the traveling valve seat 32;
the blowout preventer 4 is arranged at the lower part of the bottom pipe and is fixed at the upper part of the valve assembly and comprises an upper joint 41, a positioning sleeve 42, a guide rod 43, a pressing sleeve 44, a second compression spring 45, a pull rod 46, a shaft pin 47, a pressing block 48, a supporting body 49, a mandrel 50, a lower floating valve seat 51, a hemisphere 52, a flow guide nut 53 and a lower joint 54; the upper joint 41 is connected with the bottom of the bottom pipe through a pump cylinder coupling, and the upper joint 41 is arranged at the foremost end of the positioning sleeve 42; the front end of the guide rod 43 is connected with the upper joint 41; the pressing sleeve 44 is arranged on the positioning sleeve 42; the second compression spring 45 is connected with the guide rod 43; the pull rod 46 is connected with the tail end of the guide rod 43; the shaft pin 47 is connected with the pressing block 48; the pressing block 48 is arranged on the supporting body 49; the mandrel 50 is connected with the pull rod 46; the downstream valve seat 51 is arranged on the positioning sleeve 42; the hemisphere 52 is connected with the mandrel 50; the diversion nut 53 is connected with the hemisphere 52; the lower adapter 54 is disposed at the extreme end of the alignment sleeve 42.
The fixed valve assembly 6 is arranged at the lower part of the blowout preventer, the fixed valve assembly comprises a pump barrel valve cover 61, a pump barrel valve joint 62, a fixed valve ball 63 and a fixed valve seat 64, the pump barrel valve cover 61 is connected with the lower joint of the blowout preventer through the pump barrel valve joint 62, and the fixed valve ball 63 and the fixed valve seat 64 are arranged inside the pump barrel valve cover 61.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. An injection-production blowout-prevention oil well pump is characterized by comprising a pump cylinder assembly, an upper traveling valve assembly, a fixed valve assembly, a middle steam injection sliding valve device and a blowout prevention device,
the pump cylinder assembly comprises a pump cylinder coupling (11), an upper short pump cylinder (12), a lower short pump cylinder (13) and a bottom pipe (14), wherein the upper short pump cylinder (12) and the lower short pump cylinder (13) are connected through the pump cylinder coupling (11), and the lower end of the lower short pump cylinder (13) is connected with the bottom pipe (14) through the pump cylinder coupling;
the steam injection slide valve device is arranged below the upper short pump barrel through an oil pipe coupling, the oil pipe coupling is provided with a steam inlet hole (29), the steam injection slide valve device comprises a guide pipe (21), a valve seat joint (22), a ball head seal (23) and a slide valve body (24) with an inner hole seal, a first compression spring (25), a slide valve outer protecting pipe (26) and a stroke limiting sleeve (27), the guide pipe (21) is connected with the lower part of the upper short pump barrel through the pump barrel coupling, the upper short pump barrel is sleeved with the slide valve outer protecting pipe (26) and the guide pipe (21), the upper short pump barrel inside the guide pipe (21) is provided with a gas injection hole (211), the slide valve body (24) is sleeved on the upper short pump barrel inside the slide valve outer protecting pipe (26), the slide valve body (24) is connected with the upper short pump barrel through the valve seat joint (22), the slide valve body (24) is sleeved with the first compression spring (25), the inner wall of the slide valve outer protecting pipe (26, a steam injection channel (28) is arranged between the inner side of the ball head seal (23) and the upper short pump barrel, the steam injection channel extends to the bottom of the slide valve outer protecting pipe (26), and a stroke limiting sleeve (27) is arranged on the inner wall of the bottom of the slide valve outer protecting pipe (26);
the upper traveling valve assembly is arranged at the upper end of the long plunger (31), the long plunger (31) is arranged inside the lower short pump barrel and the bottom pipe, the traveling valve assembly comprises a traveling valve seat (32) and a traveling valve ball (33), and the traveling valve ball (33) is arranged in a hollow pull rod (34) above the traveling valve seat (32);
the blowout preventer is arranged at the lower part of the bottom pipe, the upper part of the fixed valve assembly comprises an upper joint (41), a positioning sleeve (42), a guide rod (43), a pressing sleeve (44), a second compression spring (45), a pull rod (46), a shaft pin (47), a pressing block (48), a supporting body (49), a mandrel (50), a downstream valve seat (51), a hemisphere (52), a flow guide nut (53) and a lower joint (54); the upper joint (41) is connected with the bottom of the bottom pipe through a pump cylinder coupling, and the upper joint (41) is arranged at the foremost end of the positioning sleeve (42); the front end of the guide rod (43) is connected with the upper joint (41); the pressing sleeve (44) is arranged on the positioning sleeve (42); the second compression spring (45) is connected with the guide rod (43); the pull rod (46) is connected with the tail end of the guide rod (43); the shaft pin (47) is connected with the pressing block (48); the pressing block (48) is arranged on the supporting body (49); the mandrel (50) is connected with the pull rod (46); the downstream valve seat (51) is arranged on the positioning sleeve (42); the hemisphere (52) is connected with the mandrel (50); the diversion nut (53) is connected with the hemisphere (52); the lower joint (54) is arranged at the extreme end of the positioning sleeve (42).
2. The injection-production blowout-preventing oil well pump according to claim 1, wherein the fixed valve assembly is arranged at the lower part of the blowout-preventing device, the fixed valve assembly comprises a pump barrel valve cover (61), a pump barrel valve joint (62), a fixed valve ball (63) and a fixed valve seat (64), the pump barrel valve cover (61) is connected with the lower joint of the blowout-preventing device through the pump barrel valve joint (62), and the fixed valve ball (63) and the fixed valve seat (64) are arranged inside the pump barrel valve cover (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921567863.1U CN211174070U (en) | 2019-09-20 | 2019-09-20 | Injection-production blowout-prevention oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921567863.1U CN211174070U (en) | 2019-09-20 | 2019-09-20 | Injection-production blowout-prevention oil well pump |
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| Publication Number | Publication Date |
|---|---|
| CN211174070U true CN211174070U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921567863.1U Active CN211174070U (en) | 2019-09-20 | 2019-09-20 | Injection-production blowout-prevention oil well pump |
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| CN (1) | CN211174070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115749701A (en) * | 2022-12-06 | 2023-03-07 | 山东威马泵业股份有限公司 | Blowout-preventing pipe type oil well pump |
-
2019
- 2019-09-20 CN CN201921567863.1U patent/CN211174070U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115749701A (en) * | 2022-12-06 | 2023-03-07 | 山东威马泵业股份有限公司 | Blowout-preventing pipe type oil well pump |
| CN115749701B (en) * | 2022-12-06 | 2023-11-17 | 山东威马泵业股份有限公司 | Blowout prevention pipe type oil pump |
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