CN215256137U - Oil well removes measurement sleeve pipe oil recovery unit - Google Patents

Oil well removes measurement sleeve pipe oil recovery unit Download PDF

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Publication number
CN215256137U
CN215256137U CN202121795033.1U CN202121795033U CN215256137U CN 215256137 U CN215256137 U CN 215256137U CN 202121795033 U CN202121795033 U CN 202121795033U CN 215256137 U CN215256137 U CN 215256137U
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China
Prior art keywords
oil
air
valve
inlet valve
well
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CN202121795033.1U
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Chinese (zh)
Inventor
刘学兵
刘磊
王延辉
李忠
武国杨
于金花
王延亭
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China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
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China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
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Abstract

A high-pressure hose of an oil well mobile metering casing oil recovery device is connected with an inlet valve of a separation tank, and an outlet valve of the separation tank is sequentially connected with a booster pump, a crude oil flowmeter and an oil inlet valve; the top of the separating tank is provided with a safety valve, the safety valve is connected with an air pipeline through a tee joint, and the air pipeline is sequentially connected with an air compressor, an air bag, a gas flowmeter and an air inlet valve; the oil inlet valve is connected with the air inlet valve in parallel and then connected with the check valve; the radar liquid level meter at the top of the center of the separation tank is electrically connected with a liquid level display instrument in the power distribution cabinet through a signal wire; the power distribution cabinet is electrically connected with the booster pump and the air compressor respectively through a booster pump control line and an air compressor control line; the structure is arranged on the power wheel type chassis. The utility model realizes that the oil well recovers the sleeve oil gas without stopping the well, and the oil gas can be respectively measured and then input into the single-well production main line; the oil well oil-stealing prevention device is convenient to operate and accurate in metering, effectively prevents oil stealing, avoids environmental pollution and improves the oil well management level.

Description

Oil well removes measurement sleeve pipe oil recovery unit
Technical Field
The utility model relates to an oil recovery engineering technical field particularly is an oil well removes measurement sleeve pipe oil recovery unit.
Background
At present, most oil extraction machines in oil fields adopt multiple modes of water injection, polymer injection and the like to supplement stratum energy so as to keep stratum pressure, thereby achieving the purpose of displacing oil out of a stratum and facilitating the exploitation, and oil and water in the stratum still cannot be effectively extracted under the maximum combination of the existing pumping parameters, oil and water in the stratum continuously flow into a shaft to cause the working fluid level to continuously rise, the liquid level of a plurality of wells forms huge pressure at a well mouth, and well control and production hidden troubles exist; the annular space of the oil sleeve is filled with oil water for a long time, so that the sleeve is corroded, and the service life of the sleeve is shortened; meanwhile, as the crude oil in the annular space is suspended on water, the water content is low, and the aim of staring oil stealing molecules is achieved, the oil stealing case frequently causes serious economic loss to enterprises, also often causes environmental pollution, brings harm to clean production, and cannot meet the requirements of creating green enterprises at present. Some long-term shut-in wells are not sealed, although the well is shut down from the well head and no production is produced, the stratum and the shaft are communicated, the liquid level in part of the well reaches the well head, the pressure is increased, the overflow of individual wells can be caused, serious wells can cause blowout, and serious well control risks exist.
At present, each injection and production station of an oil production plant adopts a simple oil recovery device to realize oil sleeve communication through a pipe fitting and a high-pressure hose, sleeve oil gas recovery is automatically implemented, recovery is realized only by the pressure difference between the annular space of the oil sleeve and the return pressure of the single-well main line process, the recovery effect of a well with lower casing pressure is poor, the well cannot be recovered after pressure is balanced, the liquid level height cannot be effectively reduced, and reasonable submergence is formed. Not only can the accurate measurement of recovered oil volume, tolerance not realize.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide an oil well removes measurement sleeve pipe oil recovery unit. The recovery of the casing oil gas without stopping the well of the oil well is realized, and the oil gas can be respectively metered and then input into a single-well production trunk line; the oil well oil-stealing prevention device has the advantages of achieving convenient operation and accurate measurement, effectively preventing oil stealing, avoiding environmental pollution and improving the oil well management level.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model discloses an oil well removes measurement sleeve pipe oil recovery unit, include: the device comprises a power wheel type chassis, a high-pressure hose, a separating tank, an air pipeline, a power distribution cabinet, an air compressor, an air bag, a gas pressure meter, a gas flowmeter, an air inlet valve, a booster pump, an oil pressure meter, a crude oil flowmeter, an oil inlet valve, a check valve and a Christmas tree; the method is characterized in that: the high-pressure hose is connected with an inlet valve of the separating tank, and an outlet valve of the separating tank is sequentially connected with the booster pump, the crude oil flowmeter and the oil inlet valve; the top of the separating tank is provided with a safety valve, the safety valve is connected with an air pipeline through a tee joint, and the air pipeline is sequentially connected with an air compressor, an air bag, a gas flowmeter and an air inlet valve; the oil inlet valve is connected with the air inlet valve in parallel and then connected with the check valve; the radar liquid level meter at the top of the center of the separation tank is electrically connected with a liquid level display instrument in the power distribution cabinet through a signal wire; the power distribution cabinet is electrically connected with the booster pump and the air compressor respectively through a booster pump control line and an air compressor control line; the structure is arranged on the power wheel type chassis.
Further, the air compressor is a double-screw supercharger.
Further, a gas pressure meter is arranged between the gas bag and the gas flowmeter.
Furthermore, an oil pressure gauge is arranged at an outlet of the booster pump.
Further, the booster pump is a screw pump or a plunger pump.
Furthermore, the left end of the check valve is connected with a choke sleeve of the Christmas tree.
Furthermore, the head end of the high-pressure hose is connected with a sleeve valve of the Christmas tree.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Compared with the prior art, the utility model following beneficial effect has:
1. the utility model realizes that the oil well recovers the sleeve oil gas without stopping the well, the operation is convenient, and the oil gas can be respectively measured and then input into the single well production main line;
2. the pumping action of the booster pump can effectively reduce the liquid level in the annular space of the oil sleeve, improve the qualification rate of working conditions and ensure that the oil well works at a reasonable submergence degree;
3. the oil well oil-stealing prevention device has the advantages of effectively preventing oil stealing, achieving remarkable economic benefit, improving the oil well management level, keeping clean production and reducing the labor intensity of post workers.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and the same reference numerals will be used to designate the same components throughout the drawings, which are provided for the purpose of illustrating the preferred embodiments only and are not to be considered as limiting the present invention.
FIG. 1 is a schematic view of the process flow structure of the present invention
In the figure, 1, a high-pressure hose, 2, a separation tank, 2-0, an outlet valve, 2-1, an inlet valve, 2-2, a safety valve, 2-3, a radar liquid level meter and 2-4, signal lines are arranged; 3. the air compressor control system comprises an air pipeline, 4 power distribution cabinets, 4-0 liquid level display instruments, 4-1 booster pump control lines and 4-2 air compressor control lines; 5. the system comprises an air compressor, 6 air bags, 7 air pressure meters, 8 gas flow meters, 9 air inlet valves, 10 booster pumps, 11 oil pressure meters, 12 crude oil flow meters, 13 oil inlet valves, 14 check valves, 15 Christmas trees, 15-0 oil nozzle sleeves, 15-1 back pressure valves, 15-2 production valves and 15-3 sleeve valves.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the automatic adjusting device for motor belt according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1, a well mobile metering casing oil recovery device comprises: the device comprises a power wheel type chassis, a high-pressure hose 1, a separating tank 2, an air pipeline 3, a power distribution cabinet 4, an air compressor 5, an air bag 6, a barometer 7, a gas flowmeter 8, an air inlet valve 9, a booster pump 10, an oil pressure gauge 11, a crude oil flowmeter 12, an oil inlet valve 13, a check valve 14 and a Christmas tree 15; the method is characterized in that: the high-pressure hose 1 is connected with an inlet valve 2-1 of the separating tank 2, and an outlet valve 2-0 of the separating tank 2 is sequentially connected with a booster pump 10, a crude oil flowmeter 12 and an oil inlet valve 13; the top of the separation tank 2 is provided with a safety valve 2-2, the safety valve 2-2 is connected with an air pipeline 3 through a tee joint, and the air pipeline 3 is sequentially connected with an air compressor 5, an air bag 6, a gas flowmeter 8 and an air inlet valve 9; the oil inlet valve 13 is connected with the air inlet valve 9 in parallel and then connected with the check valve 14; a radar liquid level meter 2-3 at the top of the center of the separation tank is electrically connected with a liquid level display instrument 4-0 in a power distribution cabinet 4 through a signal line 2-4; the power distribution cabinet 4 is respectively and electrically connected with a booster pump 10 and an air compressor 5 through a booster pump control line 4-1 and an air compressor control line 4-2; the structure is arranged on the power wheel type chassis.
Specifically, the air compressor 5 adopts a double-screw booster.
Specifically, a gas pressure meter 7 is arranged between the gas bag 6 and the gas flowmeter 8.
Specifically, an oil pressure gauge 11 is arranged at an outlet of the booster pump 10.
Specifically, the booster pump 10 is a plunger pump.
Specifically, the left end of the check valve 14 is connected with a nozzle sleeve 15-0 of the Christmas tree 15.
Specifically, the head end of the high-pressure hose 1 is connected with a casing valve 15-3 of the Christmas tree 15.
Embodiment of oil recovery device for movable metering casing of oil well
Firstly, the early preparation stage: the distribution condition of each facility in a well site is known, the wind direction is measured, an oil well movable metering casing oil recovery device is arranged at the windward position, an evacuation channel is established, a power supply is connected, fire-fighting and emergency rescue equipment is placed at a reasonable position, a warning line and a notice board are arranged, and operators wear labor protection supplies.
Secondly, a casing oil recovery stage: firstly, checking whether a well mouth gate is intact, whether well mouth screws and other accessories are complete, and assembling connecting pipe fittings; secondly, opening an outlet valve 2-0, an inlet valve 2-1, an air inlet valve 9 and an oil inlet valve 13 of the separating tank 2; thirdly, stopping the well, and closing a back pressure valve 15-1 and a production valve 15-2 of the Christmas tree 15; fourthly, emptying the sampling valve, removing a plug of the oil nozzle sleeve 15-0, connecting the left end of the check valve 14 with the oil nozzle sleeve 15-0, and connecting the high-pressure hose 1 with a sleeve valve 15-3 of the Christmas tree 15; fifthly, opening a back pressure valve 15-1 and a production valve 15-2 of the Christmas tree 15, and opening the well for normal production; sixthly, an operator stands on the side of the upper air inlet, slowly and controllably opens the sleeve valve 15-3, closely observes the pressure releasing situation, and cannot leave the pressure releasing site and the pressure releasing operation is too fast and too violent; after the pressure is stable, the power distribution cabinet 4 is started to automatically control gears, the device automatically operates, and the recovered natural gas enters a production pipeline from an air pipeline 3 at the upper part of the separation tank 2 through an air compressor 5, a gas bag 6 and a gas flowmeter 8 after being metered by an air inlet valve 9; the recovered casing oil is stored in a separation tank 2, a liquid level display instrument 4-0 connected with a radar liquid level meter 2-3 at the upper part of the separation tank 2 displays numerical values, when the upper set liquid level is reached, a booster pump 10 is started, crude oil stored in the separation tank 2 is input into a production pipeline, when the crude oil is lowered to the lower set liquid level, the booster pump 10 automatically stops pumping, and the operation is circulated; after the recovery is finished, determining the quantity of the recovered casing oil through a crude oil flowmeter 12 on a recovery pipeline; and seventhly, repeating the third step, releasing the pressure, detaching the left end of the check valve 14 from the choke sleeve 15-0, detaching the high-pressure hose 1 from the sleeve valve 15-3 of the Christmas tree 15, closing the sleeve valve 15-3 and tightening the plug of the choke sleeve 15-0.
The upper safety valve 2-2 of the separation tank 2 is set to 1.5 MPa, and is automatically opened when the pressure in the automatic recovery abnormal separation tank 2 exceeds 1.5 MPa. The pressure gauge 7 and the oil pressure gauge 11 are used for monitoring pressure change conditions, and the check valve 14 connected with the oil nozzle sleeve 15-0 plays a role in preventing backflow.
Thirdly, a field cleaning stage: after all the devices are completely stopped, power is cut off and removed, the original appearance of the site is recovered, and the site is clean and meets the environmental protection requirement.
A movable metering casing oil recovery device for an oil well realizes that casing oil gas is recovered without stopping the oil well, is convenient to operate, and can input the oil gas after being respectively metered into a single-well production trunk line; the liquid level in the annular space of the oil sleeve is effectively reduced through the pumping action of the booster pump, the operating condition qualification rate is improved, and the oil well is ensured to work under reasonable submergence; the purposes of effectively preventing oil stealing, improving economic benefit and oil well management level, keeping clean production and reducing labor intensity of post workers are achieved.
While preferred embodiments of the present invention have been described above, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true spirit and scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (7)

1. An oil well mobile metering casing oil recovery device comprising: the device comprises a power wheel type chassis, a high-pressure hose (1), a separating tank (2), an air pipeline (3), a power distribution cabinet (4), an air compressor (5), an air bag (6), a barometer (7), a gas flowmeter (8), an air inlet valve (9), a booster pump (10), an oil pressure meter (11), a crude oil flowmeter (12), an oil inlet valve (13), a check valve (14) and a Christmas tree (15); the method is characterized in that: the high-pressure hose (1) is connected with an inlet valve (2-1) of the separating tank (2), and an outlet valve (2-0) of the separating tank (2) is sequentially connected with a booster pump (10), a crude oil flowmeter (12) and an oil inlet valve (13); the top of the separating tank (2) is provided with a safety valve (2-2), the safety valve (2-2) is connected with an air pipeline (3) through a tee joint, and the air pipeline (3) is sequentially connected with an air compressor (5), an air bag (6), an air flow meter (8) and an air inlet valve (9); the oil inlet valve (13) is connected with the air inlet valve (9) in parallel and then is connected with the check valve (14); a radar liquid level meter (2-3) at the top of the center of the separation tank is electrically connected with a liquid level display instrument (4-0) in a power distribution cabinet (4) through a signal line (2-4); the power distribution cabinet (4) is respectively and electrically connected with the booster pump (10) and the air compressor (5) through a booster pump control line (4-1) and an air compressor control line (4-2); the structure is arranged on the power wheel type chassis.
2. The well mobile metering casing oil recovery device of claim 1, wherein: the air compressor (5) is a double-screw supercharger.
3. The well mobile metering casing oil recovery device of claim 1, wherein: and a gas pressure meter (7) is arranged between the gas bag (6) and the gas flowmeter (8).
4. The well mobile metering casing oil recovery device of claim 1, wherein: an oil pressure gauge (11) is arranged at the outlet of the booster pump (10).
5. The well mobile metering casing oil recovery device of claim 1, wherein: the booster pump (10) is a screw pump or a plunger pump.
6. The well mobile metering casing oil recovery device of claim 1, wherein: the left end of the check valve (14) is connected with an oil nozzle sleeve (15-0) of the Christmas tree (15).
7. The well mobile metering casing oil recovery device of claim 1, wherein: the head end of the high-pressure hose (1) is connected with a sleeve valve (15-3) of the Christmas tree (15).
CN202121795033.1U 2021-08-03 2021-08-03 Oil well removes measurement sleeve pipe oil recovery unit Active CN215256137U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121795033.1U CN215256137U (en) 2021-08-03 2021-08-03 Oil well removes measurement sleeve pipe oil recovery unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121795033.1U CN215256137U (en) 2021-08-03 2021-08-03 Oil well removes measurement sleeve pipe oil recovery unit

Publications (1)

Publication Number Publication Date
CN215256137U true CN215256137U (en) 2021-12-21

Family

ID=79496462

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121795033.1U Active CN215256137U (en) 2021-08-03 2021-08-03 Oil well removes measurement sleeve pipe oil recovery unit

Country Status (1)

Country Link
CN (1) CN215256137U (en)

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