CN212508263U - Tubular oil well gas-liquid automatic metering device - Google Patents
Tubular oil well gas-liquid automatic metering device Download PDFInfo
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- CN212508263U CN212508263U CN202021146956.XU CN202021146956U CN212508263U CN 212508263 U CN212508263 U CN 212508263U CN 202021146956 U CN202021146956 U CN 202021146956U CN 212508263 U CN212508263 U CN 212508263U
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Abstract
The utility model discloses a tubular oil well gas-liquid automatic metering device belongs to oil development metering equipment field. Including RTU controller, metering unit A, metering unit B, be equipped with the feed liquor branch pipe that communicates with the feed liquor house steward on metering unit A and the metering unit B respectively, be equipped with the inlet valve on the feed liquor branch pipe, metering unit A and metering unit B upper end are through giving vent to anger the branch pipe intercommunication, give vent to anger the branch pipe and give vent to anger the pipe intercommunication, metering unit A and metering unit B lower extreme all with go out the liquid pipe intercommunication, give vent to anger the pipe and go out the liquid pipe and pass through the outlet valve and go out liquid house steward intercommunication, metering unit A, metering unit B and inlet valve, outlet valve all with RTU controller communication connection. The utility model overcomes the tradition influences the big difficult problem of measurement precision error to oil well intermittent type liquid, the wax deposit scale deposit and contain the gas oil well based on flowmeter measurement crude oil gas-liquid, is worth very much promoting and using in the actual work.
Description
Technical Field
The utility model relates to an oil development metering equipment field, concretely relates to tubular oil well gas-liquid automatic metering device.
Background
The measurement of the oil well yield is an important work in the production management of the oil field, the oil well yield is accurately and timely measured, and the method has important guiding significance for mastering the oil reservoir condition and formulating a production scheme. The oil well yield measuring methods adopted in various oil fields in China at present mainly comprise a glass pipe measuring oil pore plate gas measuring method, a tipping bucket measuring oil pore plate gas measuring method, a two-phase separation density method, a three-phase separation measuring method and the like. The oil field development enters the middle and later stages, because the oil is thick, contains polymer, contains gas and wax, and the situation that the single well liquid amount is low, the oil is thick and the thermal condition is poor in a new area is common, and various problems exist in the measurement process of various common oil measuring modes. Traditional crude oil gas-liquid metering device all adopts separator plus mass flow meter and gas flowmeter mode, requires highly to the operating mode, especially is fairly big to the measuring error of gassy oil well, and the instrument is easy to be bad moreover, and easy scale deposit, wax precipitation, the later maintenance volume is big.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a tubular oil well gas liquid automatic metering device is a novel digital oil well gas liquid measurement product that further upgrade improved development was developed on the basis of two-chamber separation measurement technique, the mode that utilized flowmeter measurement liquid measure, tolerance in the past is abandoned, the difficult problem that current oil field with the merit picture method can't measure gas well, electric submersible pump well and screw pump well liquid measure and gas production measurement has been solved, the problem that the measurement precision error is big is influenced to oil well intermittent type incoming liquid, wax precipitation and gassiness oil well to the tradition because of flowmeter measurement crude oil gas liquid has been overcome.
The utility model adopts the technical scheme as follows:
the utility model provides a tubular oil well gas-liquid automatic metering device which characterized in that: including RTU controller, metering unit A2, metering unit B3, be equipped with the liquid inlet branch pipe with the main 1 intercommunication of liquid inlet on metering unit A2 and the metering unit B3 respectively, be equipped with inlet valve 4 on the liquid inlet branch pipe, metering unit A2 and metering unit B3 upper end are through giving vent to anger branch pipe 9 intercommunication, give vent to anger branch pipe 9 and outlet pipe 5 intercommunication, metering unit A2 and metering unit B3 lower extreme all with play liquid pipe 6 intercommunication, outlet pipe 5 and play liquid pipe 6 pass through outlet valve 7 and play liquid house steward 8 intercommunication, metering unit A2, metering unit B3 and inlet valve 4, outlet valve 7 all with RTU controller communication connection.
Metering unit A2 and metering unit B3 constitute by two parallelly connected metering tubes, and trachea intercommunication is passed through at two parallelly connected metering tube tops, metering tube bottom sets up high accuracy weighing sensor 10, and the inside high accuracy vapour and liquid separator that is provided with of metering tube, high accuracy weighing sensor 10 and high accuracy vapour and liquid separator all with RTU controller communication connection. And a liquid level sensor is arranged on the metering pipe.
Liquid outlet branch pipes 11 are respectively arranged at the bottoms of the metering unit A2 and the metering unit B3, outlet valves a12 are arranged on the liquid outlet branch pipes 11, and the liquid outlet branch pipes 11 are communicated with the liquid outlet guide pipe 6.
The outlet valve a12 is a self-control valve, and the outlet valve a12 is connected with the RTU controller in a communication mode.
The nominal diameter of the metering tube is less than 150 mm.
The outlet valve 7 is an electric three-way valve.
The inlet valve 4 is a self-control valve.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the device is a novel digital oil well gas liquid metering product which is developed by further upgrading and improving on the basis of a double-cavity separation metering technology, replaces the mode of metering liquid and gas by using a flowmeter in the past, solves the problem that the existing oil field power consumption graph method cannot meter the liquid and gas production metering of a gas-containing well, an electric submersible pump well and a screw pump well, and overcomes the problem that the traditional metering precision error is large due to the influence of metering crude oil gas and liquid on the oil well on intermittent liquid supply, wax precipitation and scaling and the gas-containing oil well based on the flowmeter.
The whole device is based on gas-liquid separation and weight folding algorithm, the metering pipe adopts a pipeline with DN less than 150mm, the pipeline does not belong to the national pressure vessel sequence, a U-shaped pipe self-balancing design structure and a mature liquid level height measuring technology are formed by two parallel metering pipes, the whole system is always in pressure balance, and no matter the liquid amount and the gas amount are metered at any time, the pipeline pressure loss can not be generated.
Under the condition of not using a gas flowmeter, the gas-liquid separator is used for realizing automatic metering of gas quantity in the liquid inlet and discharge process, the automatic metering device has the function of automatically separating liquid from gas in an oil well, the metering control process is fully automatic, no personnel are required to participate in the working process of the device, and the safe production of the oil field can be ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figure are: 1-a liquid inlet header pipe; 2-a metering unit a; 3-a metering unit B; 4-an inlet valve; 5-an air outlet duct; 6-liquid outlet conduit; 7-an outlet valve; 8-liquid outlet header pipe; 9-air outlet branch pipe; 10-high precision weighing sensor; 11-liquid outlet branch pipe; 12-outlet valve a.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
Example (b):
the utility model provides a tubular oil well gas-liquid automatic metering device, as figure 1, includes RTU controller, metering unit A2, metering unit B3, be equipped with the liquid inlet branch pipe that communicates with liquid inlet manifold 1 on metering unit A2 and the metering unit B3 respectively, be equipped with inlet valve 4 on the liquid inlet branch pipe, metering unit A2 and metering unit B3 upper end are through giving vent to anger branch pipe 9 intercommunication, give vent to anger branch pipe 9 and air outlet pipe 5 intercommunication, metering unit A2 and metering unit B3 lower extreme all communicate with liquid outlet pipe 6, air outlet pipe 5 and liquid outlet pipe 6 pass through outlet valve 7 and liquid outlet manifold 8 intercommunication, metering unit A2, metering unit B3 and inlet valve 4, outlet valve 7 all with RTU controller communication connection.
Metering unit A2 and metering unit B3 constitute by two parallelly connected metering tubes, and trachea intercommunication is passed through at two parallelly connected metering tube tops, metering tube bottom sets up high accuracy weighing sensor 10, and the inside high accuracy vapour and liquid separator that is provided with of metering tube, high accuracy weighing sensor 10 and high accuracy vapour and liquid separator all with RTU controller communication connection. And a liquid level sensor is arranged on the metering pipe.
Liquid outlet branch pipes 11 are respectively arranged at the bottoms of the metering unit A2 and the metering unit B3, outlet valves a12 are arranged on the liquid outlet branch pipes 11, and the liquid outlet branch pipes 11 are communicated with the liquid outlet guide pipe 6.
The outlet valve a12 is a self-control valve, and the outlet valve a12 is connected with the RTU controller in a communication mode.
The nominal diameter of the metering tube is less than 150 mm.
The outlet valve 7 is an electric three-way valve.
The inlet valve 4 is a self-control valve.
The measuring method of the tubular oil well gas-liquid automatic metering device comprises the following steps:
liquid metering: as shown in figure 1, oil well incoming liquid (crude oil gas-liquid mixed liquid) enters the device through an inlet liquid main 1, an RTU controller controls an inlet valve 4 on an inlet liquid branch pipe on a metering unit A2 to be opened, an inlet valve 4 on an inlet liquid branch pipe on a metering unit B3, an outlet valve a12 on a liquid outlet branch pipe 11 at the bottom of the metering unit A2 and an outlet valve a12 on a liquid outlet branch pipe 11 at the bottom of the metering unit B3 to be closed, the oil well incoming liquid enters a metering unit A2 to be subjected to gas-liquid separation through a high-precision separator arranged in a metering pipe of the metering unit A2, gas is discharged through an outlet pipe 5, the liquid enters the metering unit A2 to be subjected to liquid accumulation, when the liquid amount reaches a set value, a high-precision weighing sensor 10 is arranged at the bottom of the metering pipe to perform primary metering, the data is transmitted to the RTU controller, then the RTU controller controls the inlet valve 4 on the inlet liquid branch pipe, liquid in the metering unit A2 is discharged to a liquid outlet guide pipe 6 and then discharged to a liquid outlet main pipe, an inlet valve 4 on a liquid inlet branch pipe on the metering unit B3 is opened, an air outlet of an outlet valve 7 (an electric three-way valve) is closed, liquid coming from an oil well enters the metering unit B3, gas and liquid are separated by a high-precision separator arranged in a metering pipe of the metering unit B3, the gas is discharged through an air outlet guide pipe 5, the liquid enters the metering unit B3 for liquid accumulation, when the liquid amount reaches a set value, a high-precision weighing sensor 10 is arranged at the bottom of the metering pipe for secondary metering, data is transmitted to an RTU controller, an inlet valve 4 on a liquid inlet branch pipe of the metering unit B3 is closed, an outlet valve a12 on a liquid outlet branch pipe 11 at the bottom of the metering unit B3 is opened, the liquid enters the liquid outlet guide pipe 6, the inlet valve 4 on the. In the process, the valve is automatically opened and closed by the control of the RTU controller.
Gas metering: as shown in the figure, the liquid (crude oil gas-liquid mixed liquid) coming from the oil well passes through the liquid inlet header pipe 1 and then enters the built-in high-precision gas-liquid separation device 12 to realize the complete separation of free gas and the preliminary separation of partial emulsified gas, and the separated gas is converged and flows out through the gas outlet guide pipe and the gas path of the outlet valve 7 (electric three-way valve). When the upper liquid level meter of the metering unit measures the set height, the valve is closed, the current liquid level height value is recorded, liquid drainage is started at the moment, the liquid level value is observed, and when the liquid level reaches the set lower liquid level value, the air passage of the outlet valve 7 is opened, and the next metering is started.
The utility model has the use principle that the double-cavity oil well separator and the weighing method principle are used as the core design, and the gas production and the liquid production of the oil well can be measured. When the produced liquid of the oil well enters one metering unit, the liquid level of the unit rises, the liquid level of the other unit falls under the action of the produced gas, a pressure sensor is arranged at the bottom of the unit, the pressure sensor reaches a set value, the produced liquid of the oil well enters the other unit, and the process is repeated in a circulating mode.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a tubular oil well gas-liquid automatic metering device which characterized in that: including RTU controller, metering unit A (2), metering unit B (3), be equipped with the feed liquor branch pipe with feed liquor house steward (1) intercommunication on metering unit A (2) and the metering unit B (3) respectively, be equipped with inlet valve (4) on the feed liquor branch pipe, metering unit A (2) and metering unit B (3) upper end are through giving vent to anger branch pipe (9) intercommunication, give vent to anger branch pipe (9) and give vent to anger pipe (5) intercommunication, metering unit A (2) and metering unit B (3) lower extreme all with play liquid pipe (6) intercommunication, give vent to anger pipe (5) and play liquid pipe (6) through outlet valve (7) and play liquid house steward (8) intercommunication, metering unit A (2), metering unit B (3) and inlet valve (4), outlet valve (7) all with RTU controller communication connection.
2. The automatic metering device of tubular oil well gas liquid according to claim 1, characterized in that: metering unit A (2) and metering unit B (3) constitute by two parallelly connected metering tubes, and trachea intercommunication is passed through at two parallelly connected metering tube tops, metering tube bottom sets up high accuracy weighing sensor (10), and the inside high accuracy vapour and liquid separator that is provided with of metering tube, high accuracy weighing sensor (10) and high accuracy vapour and liquid separator all with RTU controller communication connection.
3. The automatic metering device of tubular oil well gas liquid according to claim 1, characterized in that: the bottom of the metering unit A (2) and the bottom of the metering unit B (3) are respectively provided with a liquid outlet branch pipe (11), the liquid outlet branch pipe (11) is provided with an outlet valve a (12), and the liquid outlet branch pipe (11) is communicated with a liquid outlet conduit (6).
4. The automatic metering device of the tubular oil well gas liquid according to claim 3, characterized in that: the outlet valve a (12) is an automatic control valve, and the outlet valve a (12) is in communication connection with the RTU controller.
5. The automatic metering device of tubular oil well gas liquid according to claim 1, characterized in that: the nominal diameter of the metering tube is less than 150 mm.
6. The automatic metering device of tubular oil well gas liquid according to claim 1, characterized in that: the outlet valve (7) is an electric three-way valve.
7. The automatic metering device of tubular oil well gas liquid according to claim 1, characterized in that: the inlet valve (4) is a self-control valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021146956.XU CN212508263U (en) | 2020-06-18 | 2020-06-18 | Tubular oil well gas-liquid automatic metering device |
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| CN202021146956.XU CN212508263U (en) | 2020-06-18 | 2020-06-18 | Tubular oil well gas-liquid automatic metering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622738A (en) * | 2020-06-18 | 2020-09-04 | 兰州科翔自控技术有限公司 | Tubular oil well gas-liquid automatic metering device and measuring method thereof |
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- 2020-06-18 CN CN202021146956.XU patent/CN212508263U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622738A (en) * | 2020-06-18 | 2020-09-04 | 兰州科翔自控技术有限公司 | Tubular oil well gas-liquid automatic metering device and measuring method thereof |
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