CN111927430A - Oil well oil gas gathering, transportation, extraction, measurement and pressurization device - Google Patents
Oil well oil gas gathering, transportation, extraction, measurement and pressurization device Download PDFInfo
- Publication number
- CN111927430A CN111927430A CN202010778776.1A CN202010778776A CN111927430A CN 111927430 A CN111927430 A CN 111927430A CN 202010778776 A CN202010778776 A CN 202010778776A CN 111927430 A CN111927430 A CN 111927430A
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- Prior art keywords
- oil
- gas
- pipeline
- extracting
- metering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Abstract
The metering and pressurizing device for oil-gas gathering and transportation of the oil well comprises an oil-gas extraction separation buffer tank, wherein one end of the oil-gas extraction separation buffer tank is connected with an oil-well liquid inlet pipeline, the top end of the oil-gas extraction separation buffer tank is connected with an exhaust pipeline, the bottom end of the oil-gas extraction separation buffer tank is connected with an oil-water liquid outlet pipeline, and the exhaust pipeline and the oil-water liquid outlet pipeline are gathered to a gas-liquid mixing and conveying port; the exhaust pipeline is provided with a gas booster pump, and the oil-water outlet pipeline is connected with a booster pump, a liquid flowmeter and a pressure transmitter. The invention solves the problems of low pressurization, short service life, frequent maintenance and the like of the existing pressurization equipment in the oil field, further improves the condition that measures such as a large amount of hot washing or dosing and the like are still needed when the oil well runs in winter, simultaneously solves the problem that the existing pressurization equipment can not carry out oil-gas mixed pressurization on the oil well with small yield, and has the advantages of small volume, compact structure, flexible transportation, convenient installation, safety, reliability, unattended operation and the like.
Description
Technical Field
The invention belongs to the technical field of oil well gathering, transportation and pressurization, and particularly relates to an oil well oil gas gathering, transportation, extraction, measurement and pressurization device.
Background
In the process of crude oil recovery, the well group is far away from the booster station and the metering station, the oil pipeline is long, and the wax deposition of the oil well is serious. Therefore, each oil production well is always in a high back pressure (1.5-3MPa) production state for a long time, the normal production of the oil well is seriously influenced, and particularly when the weather is cold in winter, the back pressure can reach 6-7 MPa. The oil well is hardly normally produced in such a case. The investment for building a pressurizing point is large, the site is limited, and the natural environment is seriously damaged.
At present, the existing screw pump supercharging equipment in an oil field generally has the supercharging pressure of 2-2.5 MPa, and the problems of low supercharging pressure, huge equipment, large occupied area, high cost, short service life and frequent maintenance exist in oil-gas mixed transportation. The oil well still needs to be subjected to measures such as a large amount of hot washing or chemical adding during running in winter. Meanwhile, when the liquid production of the small-yield oil well is not uniform, the time is long and the time is short, even when no yield exists, the pump can idle and dry grind, the service life of the pump is seriously shortened, the maintenance cost of the pump is increased, and the oil-gas mixed pressurization cannot be carried out.
Disclosure of Invention
The invention aims to provide an oil well oil gas gathering, transportation, extraction, measurement and pressurization device, which solves the problems that the oil gas mixed transportation and pressurization are low, the service life is short, the maintenance is frequent and the like due to the fact that the pressurization of the existing pressurization equipment in an oil field is generally 2-2.5 MPa, so that the situation that measures such as a large amount of hot washing or dosing are still required when an oil well runs in winter is improved, and the problem that the oil gas mixed pressurization cannot be carried out on a small-yield oil well by the existing pressurization equipment is solved.
The technical scheme adopted by the invention is as follows:
the metering and pressurizing device for oil-gas gathering and transportation of the oil well comprises an oil-gas extraction separation buffer tank, wherein one end of the oil-gas extraction separation buffer tank is connected with an oil-well liquid inlet pipeline, the top end of the oil-gas extraction separation buffer tank is connected with an exhaust pipeline, the bottom end of the oil-gas extraction separation buffer tank is connected with an oil-water liquid outlet pipeline, and the exhaust pipeline and the oil-water liquid outlet pipeline are gathered to a gas-liquid mixing and conveying port; the exhaust pipeline is provided with a gas booster pump, and the oil-water outlet pipeline is connected with a booster pump.
Furthermore, a liquid flowmeter and a pressure transmitter are also arranged on the oil-water outlet pipeline.
Further, the oil-water liquid outlet pipeline is divided into a first pipeline and a second pipeline, and the first pipeline and the second pipeline are gathered to the gas-liquid mixing and conveying port; the first pipeline is sequentially connected with a first oil-water filter, a first booster pump, a first liquid flowmeter and a first pressure transmitter; the second pipeline is sequentially connected with a second oil-water filter, a second booster pump, a second pressure transmitter and a second liquid flow meter.
Furthermore, a third pressure transmitter, a gas filter and a gas flowmeter are further arranged on the exhaust pipeline.
Furthermore, an automatic gas overpressure protection device and a constant pressure valve device are arranged on the exhaust pipeline for gas pressure protection.
Furthermore, an oil-water sewage discharge pipe opening is formed in the lower portion of the oil-gas extraction separation buffer tank.
Furthermore, the upper part of the oil-gas extraction separation buffer tank is provided with a safety valve port and a pressure gauge.
Furthermore, the oil-gas extraction separation buffer tank adopts an extraction adsorption type demisting oil-gas separation structure.
Furthermore, the supercharging device is also provided with an independent electric appliance control system, and the control system comprises a CPU module, and a power module, an I/O module, a Bthnet and an RS485/232 communication interface module which are connected with the CPU module.
The invention has the beneficial effects that:
the invention solves the problem that the oil and gas of the oil well can not be synchronously metered and pressurized or the problem of low pressurization (less than 4MPa) by the prior similar products in a mode of separating oil and gas, independently metering the yield on respective pipelines and then gathering and mixing transportation.
The scheme of redundant systems such as key components of one-use one-standby double-pressurization pumps, local display and remote display of double liquid levels is adopted, so that the problems of stable pressurization, long overhaul period, real-time monitoring and the like are solved.
The main component of the device is an oil-gas buffer tank which is designed by combining a gravity separator, a cyclone separator and an adsorption principle, and adopts a novel oil-gas buffer tank with a spiral, isolation and adsorption triple separation vertical structure suitable for oil fields; the booster pump of the main part of the device adopts a plunger type structure which is different from the screw pump structure used at present, and the boosting reaches 6 MPa.
The whole set of equipment adopts anticorrosive materials and anticorrosive treatment, and the inner walls of the separator and the pipeline flow adopt internal corrosion resistance. All the motors, sensors, detecting instruments and control cabinets of the device are of explosion-proof structures. The device can reliably ensure the normal use of the equipment under the sudden special conditions of a field, such as pump blockage, power supply interference, extreme weather, liquid component change, temperature change and the like, solves the problems of the similar devices used in the current oil field, and meets the requirements of the ground process under various environmental conditions of the field.
The device disclosed by the invention is of an integrated skid-mounted structure, is in modular design, has the advantages of small volume, compact structure, flexibility in carrying, convenience in installation, safety, reliability, unattended operation and the like, and is suitable for special environments with low temperature in the open air.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure, 1, a gas-liquid mixing and conveying port, 2, a second pressure transmitter, 3, a second liquid flowmeter, 4, an oil-gas extraction separation buffer tank, 5, an exhaust pipeline, 6, a first pressure transmitter, 7, an oil-water liquid outlet pipeline, 8, a first liquid flowmeter, 9, a first pipeline, 10, an oil well liquid inlet pipeline, 11, a first oil-water filter, 12, a first booster pump, 13, a second booster pump, 14, a second oil-water filter, 15, a second pipeline, 16, an oil-water sewage outlet, 17, a third pressure transmitter, 18, a gas overpressure automatic protection device, 19, a constant pressure valve device, 20, a gas filter, 21, a gas booster pump, 22, a gas flowmeter, 23 and a safety valve port.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings.
As shown in fig. 1 and 2, an oil-gas gathering, transporting, extracting, measuring and pressurizing device for an oil well comprises an oil-gas extraction separation buffer tank 4, wherein one end of the oil-gas extraction separation buffer tank 4 is connected with an oil well liquid inlet pipeline 10, the top end of the oil-gas extraction separation buffer tank 4 is connected with an exhaust pipeline 5, a safety valve port 23 and a pressure gauge, the bottom end of the oil-gas extraction separation buffer tank 4 is connected with an oil-water liquid outlet pipeline 7 and an oil-water sewage discharge pipe port 16, and the exhaust pipeline 5 and the oil-water liquid outlet pipeline 7; a third pressure transmitter 17, an automatic gas overpressure protection device 18, a constant pressure valve device gas pressure protection 19, a gas filter 20, a gas booster pump 21 and a gas flowmeter 22 are sequentially arranged on the exhaust pipeline 5, and the oil-water liquid outlet pipeline 7 is sequentially connected with a booster pump, a liquid flowmeter and a pressure transmitter.
The oil-water liquid outlet pipeline 7 is divided into a first pipeline 9 and a second pipeline 15, and the first pipeline 9 and the second pipeline 15 are gathered to the gas-liquid mixing and conveying port 1; the first pipeline 9 is sequentially connected with a first oil-water filter 11, a first booster pump 12, a first liquid flow meter 8 and a first pressure transmitter 6; the second pipeline 15 is connected with a second oil-water filter 14, a second booster pump 13, a second pressure transmitter 2 and a second liquid flowmeter 3 in sequence.
The oil-gas extraction separation buffer tank 4 adopts an extraction adsorption type demisting oil-gas separation structure. The supercharging device is also provided with an independent electric appliance control system, and the control system comprises a CPU module, and a power supply module, an I/O module, a Btphernet and an RS485/232 communication interface module which are connected with the CPU module.
Claims (9)
1. The oil-gas gathering, transporting, extracting, metering and pressurizing device for the oil well is characterized by comprising an oil-gas extraction and separation buffer tank (4), wherein one end of the oil-gas extraction and separation buffer tank (4) is connected with an oil well liquid inlet pipeline (10), the top end of the oil-gas extraction and separation buffer tank (4) is connected with an exhaust pipeline (5), the bottom end of the oil-gas extraction and separation buffer tank is connected with an oil-water liquid outlet pipeline (7), and the exhaust pipeline (5) and the oil-water liquid outlet pipeline (7) are gathered to a gas-liquid mixing and conveying; the exhaust pipeline (5) is provided with a gas booster pump (21), and the oil-water outlet pipeline (7) is connected with a booster pump.
2. The oil well oil and gas gathering, extracting, metering and pressurizing device as claimed in claim 1, wherein a liquid flow meter and a pressure transmitter are further arranged on the oil-water outlet line (7).
3. The oil well oil and gas gathering, extracting, metering and pressurizing device as claimed in claim 2, wherein the oil-water liquid outlet pipeline (7) is divided into a first pipeline (9) and a second pipeline (15), and the first pipeline (9) and the second pipeline (15) are gathered to the gas-liquid mixing and conveying port (1); the first pipeline (9) is sequentially connected with a first oil-water filter (11), a first booster pump (12), a first liquid flowmeter (8) and a first pressure transmitter (6); the second pipeline (15) is sequentially connected with a second oil-water filter (14), a second booster pump (13), a second pressure transmitter (2) and a second liquid flowmeter (3).
4. An oil well oil and gas gathering, extracting, metering and pressurizing device as claimed in claim 2, characterized in that a third pressure transmitter (17), a gas filter (20) and a gas flow meter (22) are also arranged on the exhaust line (5).
5. An oil well oil and gas gathering, extracting, metering and pressurizing device as claimed in claim 2, characterized in that the exhaust line (5) is provided with an automatic gas overpressure protection device (18) and a constant pressure valve device gas pressure protection (19).
6. The oil well oil gas gathering, transporting, extracting, metering and pressurizing device as claimed in claim 2, wherein the oil gas extracting, separating and buffering tank (4) is provided with an oil-water drain pipe opening (16) at the lower part.
7. An oil well oil gas gathering, transporting, extracting, metering and pressurizing device as claimed in claim 2, characterized in that the upper part of the oil gas extracting, separating and buffering tank (4) is provided with a relief valve port (23) and a pressure gauge.
8. The oil well oil gas gathering, transporting, extracting, metering and pressurizing device as claimed in claim 2, wherein the oil gas extracting, separating and buffering tank (4) adopts an extracting, adsorbing and demisting oil gas separating structure.
9. The oil well oil gas gathering, extracting, metering and pressurizing device as claimed in claim 2, wherein the pressurizing device is further provided with an independent electrical control system, and the control system comprises a CPU module, and a power module, an I/O module, a Bthnet and an RS485/232 communication interface module which are connected with the CPU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778776.1A CN111927430A (en) | 2020-08-05 | 2020-08-05 | Oil well oil gas gathering, transportation, extraction, measurement and pressurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778776.1A CN111927430A (en) | 2020-08-05 | 2020-08-05 | Oil well oil gas gathering, transportation, extraction, measurement and pressurization device |
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| CN111927430A true CN111927430A (en) | 2020-11-13 |
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| CN202010778776.1A Pending CN111927430A (en) | 2020-08-05 | 2020-08-05 | Oil well oil gas gathering, transportation, extraction, measurement and pressurization device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961691A (en) * | 2022-05-28 | 2022-08-30 | 陕西星辰石油科技有限责任公司 | Oil-gas gathering, transportation, extraction, metering and pressurizing device and method for shale oil development |
| CN116518305A (en) * | 2023-05-12 | 2023-08-01 | 延安众邦源实业有限公司 | Liquid-dominant multiphase supercharging device and method |
-
2020
- 2020-08-05 CN CN202010778776.1A patent/CN111927430A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961691A (en) * | 2022-05-28 | 2022-08-30 | 陕西星辰石油科技有限责任公司 | Oil-gas gathering, transportation, extraction, metering and pressurizing device and method for shale oil development |
| CN114961691B (en) * | 2022-05-28 | 2023-06-27 | 陕西星辰石油科技有限责任公司 | Oil gas gathering, transportation, extraction, metering and pressurizing device for shale oil development and method thereof |
| CN116518305A (en) * | 2023-05-12 | 2023-08-01 | 延安众邦源实业有限公司 | Liquid-dominant multiphase supercharging device and method |
| CN116518305B (en) * | 2023-05-12 | 2024-03-19 | 延安众邦源实业有限公司 | Liquid-dominant multiphase supercharging device and method |
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