CN213175612U

CN213175612U - Skid-mounted vehicle-mounted oil field output liquid metering device

Info

Publication number: CN213175612U
Application number: CN202021611664.9U
Authority: CN
Inventors: 季文纲; 张义顺; 孙兴革; 高洪丰; 李爱秋; 邵林; 赵金磊
Original assignee: TONGYI TECHNOLOGY CO Ltd SHENYANG UNIVERSITY OF TECHNOLOGY
Current assignee: TONGYI TECHNOLOGY CO Ltd SHENYANG UNIVERSITY OF TECHNOLOGY
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-05-11
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a skid-mounted vehicle-mounted oil field output liquid metering device, which relates to the technical field of crude oil output metering in the oil extraction industry, and comprises a movable pry and a metering tank movably connected with the movable pry through a hydraulic component, wherein a weighing sensor is fixedly connected with the upper end face of the movable pry, a liquid inlet pipeline, a liquid outlet pipeline and an exhaust pipeline connected through a separator are arranged on the metering tank, and compared with the traditional fixed output liquid metering device, the device has more convenient mobility and adjustability, and can perform output liquid metering work on an oil well which is not provided with the fixed output liquid metering device; for traditional portable output liquid metering device, this device can realize gas-liquid separation and weigh respectively, has guaranteed the required precision of output liquid measurement, has improved the accuracy of measurement result and has realized the gas-liquid diversity of measuring respectively.

Description

Skid-mounted vehicle-mounted oil field output liquid metering device

Technical Field

The utility model relates to an oil recovery trade crude oil output measures technical field, specifically is a skid-mounted vehicle-mounted oil field output liquid metering device.

Background

In the oil extraction process, in order to accurately know the production change condition of an oil well, reasonably control and coordinate the production process and timely adjust various production indexes, the liquid production amount of each oil well in the production process needs to be measured, the liquid production amount measurement is the work which needs to be done every shift every day, and the liquid production amount measurement has a special position in the oil and gas production process.

At present, most of produced liquid measuring modes commonly adopted in oil fields are fixed measuring devices, such as a tipping bucket type oil well measuring device, a glass tube oil measuring device, a mass flowmeter measuring device and the like, and generally the fixed measuring devices are arranged near an oil production well to measure the gas and liquid yields of the oil well at regular time and record yield data.

However, for wells that have not been equipped with fixed production metering devices, such as remote wells or newly developed wells, a mobile metering device is required to meter production if knowledge of production data is required. In addition, mobile metering devices are sometimes required for calibration of stationary metering devices.

At present, the existing mobile produced liquid metering device has a double-volume differential pressure mode and adopts a mass flow meter mode metering device after separation. The double-volume differential pressure type metering device is characterized in that differential pressure type sensors are arranged on two vertical metering tanks, the two tank bodies are alternately filled with and drained of liquid, and the yield is metered by detecting differential pressure, and the double-volume differential pressure type metering device has the defects that the tank bodies have enough height to ensure the precision, and the height of the tank bodies is limited when the double-volume differential pressure type metering device is carried on a vehicle, so that the metering precision requirement is difficult to achieve; the mass flow meter mode has certain requirements on the stability, the flow range and the gas-liquid separation effect of the produced liquid, and the application range is limited.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a skid-mounted vehicle-mounted oil field output liquid metering device; including removing the sled and through hydraulic assembly with remove sled swing joint's metering tank, it has weighing sensor to remove sled up end rigid coupling, last liquid inlet pipe way, the fluid-discharge line of being provided with of metering tank and the exhaust pipe who connects through the separator.

Preferably, the feed liquor pipeline includes feed liquor high pressure hose and feed liquor valve, the feed liquor end and the oil well intercommunication of feed liquor high pressure hose, play liquid end and metering tank intercommunication, the feed liquor valve inserts feed liquor high pressure hose for the control feed liquor.

Preferably, the exhaust pipeline comprises an exhaust pipe, and a safety valve, a pressure sensor, a gas flow meter, a check valve and an exhaust valve which are connected to the exhaust pipe in sequence.

Preferably, the liquid discharge pipeline comprises a liquid discharge high-pressure hose and a liquid discharge valve, the liquid discharge high-pressure hose is connected between the liquid inlet pipeline and the exhaust pipeline, and the liquid discharge valve is connected to the liquid discharge high-pressure hose.

Preferably, hydraulic pressure subassembly includes the pneumatic cylinder, the pneumatic cylinder rigid coupling is in removing sled upper surface, the rigid coupling has backup pad and dog on the pneumatic cylinder drive end.

Preferably, the system further comprises a nitrogen generator, wherein the nitrogen generator is communicated with the metering tank through a separator and is used for discharging liquid in the metering tank.

The utility model discloses following beneficial effect has:

1. compared with the traditional fixed produced liquid metering device, the device has more convenient mobility and adjustability, and can carry out produced liquid metering work on an oil well which is not provided with the fixed produced liquid metering device;

2. for traditional portable output liquid metering device, this device can realize gas-liquid separation and weigh respectively, has guaranteed the required precision of output liquid measurement, has improved the accuracy of measurement result and has realized the gas-liquid diversity of measuring respectively.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side cross-sectional view of the mobile sled and metering tank of the present invention in a non-metering state;

FIG. 3 is a side cross-sectional view of the mobile sled and the metering tank of the present invention in a metering state;

in the figure: 1. moving the pry; 2. a metering tank; 3. a weighing sensor; 4. a liquid inlet high-pressure hose; 5. a liquid inlet valve; 6. an exhaust pipe; 7. a safety valve; 8. a pressure sensor; 9. a gas flow meter; 10. a check valve; 11. an exhaust valve; 12. a liquid discharge high-pressure hose; 13. a drain valve; 14. a hydraulic cylinder; 15. a support plate; 16. a stopper; 17. a nitrogen making machine; 18. a separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a skid-mounted on-board oil field output liquid metering device; including removing sled 1 and through hydraulic assembly with remove 1 swing joint's of sled metering tank 2, it has weighing sensor 3 to remove 1 up end rigid coupling of sled, be provided with into liquid pipeline, fluid-discharge line on the metering tank 2 and through the exhaust pipe that separator 18 is connected, wherein hydraulic assembly and 2 swing joint of metering tank, consequently when the measurement, the hydraulic assembly drive end contracts to the minimum, makes

metering tank

2 and 3 working face contact of weighing sensor, thereby guarantee to weigh normally going on, when the transportation, the hydraulic assembly drive end extends to the peak,

metering tank

2 and 3 separation of weighing sensor this moment, guarantee weighing sensor 3 atress not, prevent to jolt and vibration and lead to its damage.

Wherein, the feed liquor pipeline includes feed liquor high pressure hose 4 and feed liquor valve 5, the feed liquor end and the oil well intercommunication of feed liquor high pressure hose 4, play liquid end and metering tank 2 intercommunication, feed liquor valve 5 inserts feed liquor high pressure hose 4 for the control feed liquor, in the output liquid of oil well gets into metering tank 2 through the feed liquor pipeline, at the output liquid entering liquid measurement in-process, feed liquor valve 5 is in the open mode all the time.

The exhaust pipeline comprises an exhaust pipe 6, a safety valve 7, a pressure sensor 8, a gas flowmeter 9, a check valve 10 and an exhaust valve 11, wherein the safety valve 7, the pressure sensor 8, the gas flowmeter 9, the check valve 10 and the exhaust valve 11 are sequentially connected to the exhaust pipe 6, crude oil and natural gas in produced liquid are separated through a separator 18, the crude oil is enabled to be deposited in the metering tank 2, the natural gas flows through the exhaust valve 11 along the exhaust pipe 6 and is exhausted, the safety valve 7 and the pressure sensor 8 are used for monitoring pipeline pressure in real time and guaranteeing pipeline safety, the gas flowmeter 9 is used for measuring exhaust amount, the check valve 10 is used for preventing gas from flowing reversely.

Wherein, the drainage pipeline includes flowing back high pressure hose 12 and flowing back valve 13, flowing back high pressure hose 12 is connected to between liquid inlet pipe way and the exhaust pipe, flowing back valve 13 inserts flowing back high pressure hose 12, accomplishes the measurement back at output liquid, needs the liquid discharge in the measuring tank 2, and flowing back valve 13 is in the open mode this moment, and discharge valve 11 is in the closure state, in time discharges liquid from flowing back high pressure hose 12 through jar internal pressure.

Wherein, hydraulic pressure subassembly includes

pneumatic cylinder

14, 14 rigid couplings of pneumatic cylinder are in removing 1 upper surface of sled, the rigid coupling has backup pad 15 and dog 16 on the 14 drive ends of pneumatic cylinder, and pneumatic cylinder 14 is used for jack-up metering tank 2, and backup pad 15 and dog 16 are the active contact state with metering tank 2, and dog 16 then is located metering tank 2's both sides for the level that restricts metering tank 2 rocks.

Wherein, still include nitrogen generator 17, nitrogen generator 17 passes through separator and metering tank 2 intercommunication, is used for liquid discharge in the metering tank 2, nitrogen generator 17 is used for producing nitrogen gas to enter into and make liquid in the metering tank 2 in time discharge, and can enter into in metering tank 2 in advance before the measurement process, carry out the process of taking a breath with the natural gas that remains in the jar, guarantee to measure safety.

The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.

Example (b): as can be appreciated from the description of figures 1-3;

the leveling process is as follows:

operating the hydraulic station in a point motion mode, starting a motor of the hydraulic station in the correct direction, opening a mechanical locking device of the weighing platform, controlling the weighing platform to ascend through a hydraulic lifting oil cylinder, observing a universal level meter in the ascending process, enabling four oil cylinders to ascend uniformly and keep relatively horizontal, and finely adjusting the oil cylinders to enable bubbles in the level meter to be located in a central circle after a weighing sensor enters a working position after the weighing platform is separated from a mechanical support;

the liquid inlet process is as follows:

when safety risk exists, the nitrogen making machine 17 is started to replace air in the metering tank 2, then a hose with a quick connecting joint is used for connecting an inlet pipeline and an outlet pipeline of an oil well, the liquid inlet valve 5 and the liquid outlet valve 13 are opened, the weight indication number of the weighing platform is recorded, a manual valve on the inlet pipeline is opened slowly, liquid in the pipelines enters the metering tank 2, the manual valve on the outlet pipeline is opened, the change condition of the weight is observed, when the weight is close to the initial state and is not changed greatly, the manual valve on the bypass pipeline is closed, and metering is ready to be started;

the metering process is as follows:

the default set weight of the system is 700Kg, the system can be stopped at any time in the metering process, the exhaust valve 11 is opened firstly and then the liquid discharge valve 13 is closed in the metering process, the measuring button is pressed after the weight data starts to rise, the system starts metering, the weight at the moment when the button is pressed is taken as the initial weight in the metering process, the sum of the initial weight and the set weight is taken as the cut-off weight, and the yield in the current time period is calculated through the time and the weight at the cut-off time and converted into the yield per day.

The total weight and the measured weight data can be switched by pressing a measurement setting button in the metering process.

Measuring the gas quantity by a gas flowmeter 9 arranged on the exhaust pipeline while measuring the liquid production quantity, and simultaneously obtaining two measurement data of the liquid production quantity and the gas production quantity when the measurement is finished;

the liquid drainage process is as follows:

after the measurement is finished, the liquid discharge valve 13 is opened, the exhaust valve 11 is closed, liquid in the tank is discharged by using gas at the well head, attention is paid to observe weight data, and liquid discharge is finished when the weight change is not much close to the initial weight. If the produced liquid does not contain natural gas, the nitrogen making machine 17 is opened, and the liquid in the tank is discharged by using nitrogen;

the metering and moving transportation process is ended as follows:

after the hose is detached, the residual liquid is cleaned, the hose is wound on a wire spool, a weighing platform descends to a mechanical support and is locked, a hydraulic station motor is closed, a control system power supply is closed after data recording is well done, a power line is collected into a power supply box, and the device is in a metering ready state.

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

1. The utility model provides a skid-mounted vehicle-mounted oil field output liquid metering device, including remove sled (1) and through hydraulic assembly with remove sled (1) swing joint's metering tank (2), its characterized in that, it has weighing sensor (3) to remove sled (1) up end rigid coupling, be provided with liquid inlet pipe way, fluid-discharge line on metering tank (2) and through the exhaust pipe that the separator is connected.

2. The vehicle-mounted oil field output liquid metering device of the skid-mounted type according to claim 1, wherein the liquid inlet pipeline comprises a liquid inlet high-pressure hose (4) and a liquid inlet valve (5), the liquid inlet end of the liquid inlet high-pressure hose (4) is communicated with the oil well, the liquid outlet end of the liquid inlet high-pressure hose is communicated with the metering tank (2), and the liquid inlet valve (5) is connected to the liquid inlet high-pressure hose (4) and used for controlling liquid inlet.

3. The skid-mounted oilfield produced fluid metering device according to claim 2, wherein the exhaust pipeline comprises an exhaust pipe (6) and a safety valve (7), a pressure sensor (8), a gas flow meter (9), a check valve (10) and an exhaust valve (11) which are sequentially connected to the exhaust pipe (6).

4. The skid-mounted oilfield produced fluid metering device according to claim 3, wherein the drainage pipeline comprises a drainage high-pressure hose (12) and a drainage valve (13), the drainage high-pressure hose (12) is connected between the liquid inlet pipeline and the drainage pipeline, and the drainage valve (13) is connected to the drainage high-pressure hose (12).

5. The skid-mounted vehicle-mounted oilfield produced fluid metering device according to claim 4, wherein the hydraulic assembly comprises a hydraulic cylinder (14), the hydraulic cylinder (14) is fixedly connected to the upper surface of the movable skid (1), and a supporting plate (15) and a stop block (16) are fixedly connected to the driving end of the hydraulic cylinder (14).

6. The skid-mounted oil field produced fluid metering device according to claim 1, further comprising a nitrogen generator (17), wherein the nitrogen generator (17) is communicated with the metering tank (2) through a separator and is used for discharging liquid in the metering tank (2).