SU1490267A1 - Arrangement for reproducing flow rates of gas and liquid products of oil wells - Google Patents

Abstract

The invention relates to the oil and gas industry. The goal is to increase the accuracy of reproduction by creating oil and gas streams with predetermined ratios of components and their costs. The device contains tanks 1-3 for gas, oil and water, gas flow creation unit 4, receiver 5, gas flow stabilization and control unit 6, gas flow measurement unit 7, damping unit 8, liquid and gas mixing unit 16, unit 17 mixing oil and water, node 18 test lines, pressure control unit 19 and sump 20. Oil and water line includes blocks 9, 10 of creating oil and water flow rates, blocks 11, 12 for stabilizing and controlling flow, flow rate blocks 13, 14, node 15 switch the flow of oil and water. The device allows the creation of three-component flows of gas, oil and water. Before mixing in a single component stream, the flow rate is stabilized and measured, and damping is performed. The oil and water flows are mixed in block 17 or flow through switching unit 15 into block 16. In the latter, gas and liquid are mixed. The operating pressure in node 18 of the test lines is maintained by block 19, which is designed as a separation vessel with pressure and level control legs. The gas from the separation tank of unit 19 enters the tank 1, and the liquid is drained into the sump 20. In the latter, it is separated into oil and water and enters the tanks 2 and 3. The accuracy of reproducing the costs of the components is achieved by independent operation of the lines. The use of the device allows the use of measuring instruments that satisfy the requirements of conducting an experiment or calibrating measuring instruments. 2 h. the item of f-ly, 4 ill.

Description

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gas flow creation unit A, receiver 5, gas flow stabilization and control unit 6, gas flow measurement unit 7, damping unit 8, liquid and gas mixing unit 16, oil and water mixing unit 17, test line unit 18, pressure control unit 19 and a settling tank 20, the Oil and Water Line includes blocks 9, 10 for creating oil and water costs, blocks 11, 12 for stabilizing and controlling costs, blocks 13, 14 for measuring costs, the node 15 for switching oil and water flows, Ust allows you to create three-component gas, oil and water flows. Before mixing in a one-component flow, the flow is stabilized and measured, passed through the node 15 to switch to block 16, and the latter mixes gas and liquid. The working pressure in the test unit 18 is maintained by the unit 19, the cat is made in the form of a separation capacitance with pressure and level adjustment branches. Gas from separation

The two unit 19 enters the tank 1 and the liquid is discharged into the sump.

5 components are achieved due to n dependent line operation. The use of the device allows the use of measuring devices that satisfy the requirements of the experiment.

damping is extinguished. Oil flows 20 calibration of measuring instruments, 2 h, n, and water are mixed in block 17 or f-ly, 4 sludge.

enter through switching unit 15 to block 16. In the latter, gas and liquid are mixed. The operating pressure in node 18 of the test lines is maintained by block 19, which is designed as a separation vessel with pressure and level control legs. The gas from the separation tank of the block 19 enters the tank 1, and the liquid is discharged into the sump 20. In the latter, it is separated into oil and water and fed to the tanks 2 and 3,

components is achieved through independent operation of the lines. The use of the device allows the use of measurement tools that meet the requirements of the experiment or

The invention relates to the oil and gas industry and can be used to reproduce the costs of oil wells.

The purpose of the invention is to improve the accuracy of reproduction by creating oil and gas streams with a given ratio of components and their costs.

Fig. 1 shows a block diagram of a device for reproducing the flow rate of gas-liquid production of oil wells; Fig. 2 is a block diagram of the flow measurement unit; Fig. 3 is a hydraulic schematic diagram of an oil and water displacement unit; Fig. 4 is a diagram of a gas-pressure flow control unit.

A device for reproducing gas-liquid production of oil wells contains tanks 1, 2, 3 for gas, oil and water, respectively, gas flow creating unit 4, receiver 5, unit 6 for stabilizing and controlling gas flow, gas flow measuring unit 7, unit In damping, oil and water flow creation units 9, 10, stabilizing and controlling oil and water consumption units 11, 12, oil and water flow measurement units 13, 14, oil and water flow switching unit 15, liquid and gas mixing unit 16, oil and water mixing block 17, test assembly 18

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weighty lines, pressure control unit 19, sump 20,

The containers 1, 2, 3 for gas, oil and water are connected to the lines of reproduction of the flow, respectively gas, oil and water, and specifically with the corresponding blocks 4, 9, 10 of the flow.

The gas flow line consists of the flow creation unit (compressor), the receiver 5, the flow rate stabilization and control unit 6, the flow measurement unit 7, and the damping unit B in series. There is a feedback from the flow measurement unit 7 to the stabilization and flow control unit 6. The oil and water reproduction lines contain sequentially connected flow creation units 9, 10 (pumps), flow stabilization and control units 11, 12, and oil and water flow measurement units 13, 14, respectively. There is a feedback from the blocks.

13 and 14 measure the cost of oil and water to blocks 11 and 12 stabilization

and controlling the flow of oil and water, respectively. From the oil and water consumption units 9, 10, as well as from the units 11, 12 for stabilizing and controlling the oil and water consumption, the discharge lines of the liquid flow to the containers 2, 3 for oil and water. Block output

14measurement of water flow is connected

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with the first entrance, it took into account 15 switchings of oil and water flows. The output of the oil consumption measurement unit 13 is connected to the second input of the oil and water flow switching unit 15. The first and second outputs of the oil and water flow switching section 15 are connected to the first inlet of the liquid and gas mixing unit 16. The third and fourth outlets of the oil and water flow switching unit 15 are connected to an oil and water mixing unit 17, the output of which is connected to the first inlet of the liquid and gas mixing unit 16. The second inlet of the liquid and gas mixing unit 16 is connected to the output of the damping unit 8. To the output of the liquid and gas mixing unit 16 is connected a test unit 18, the output of which is connected to the input of the pressure control unit 19.

In the gas line, the first outlet of the pressure control unit 19 is connected to the first inlet of the container 1 dl. gas. In the liquid line, the second outlet of the block 19 is connected to the first inlet of the oil-water settler 20, the second and first outlets are connected to tank 2 for oil and tank 3 for water.

The units 11, 12, 6 for stabilizing and controlling the consumption of oil, water, gas contain several parallel pipeline lines. Pipe fittings with both manual and 35 and remote control (not shown) are used to adjust for a given flow rate.

Flow measurement blocks 7, 13, 14 (Fig. 2) sod; Each branch consists of a filter gas separator 21 connected in series, a first transition pipe 22, a first straight line section 23 of the pipeline, a flow converter 24, a second straight line pipe section 25, a second transition tube 26.

The damping unit 8 includes a check valve and a damping assembly (not shown).

The node 15 for switching the flows of oil and gas is made in the form of a corresponding strapping of pipeline valves, including valves, valves 40

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ball valves, ball valves, valves, etc. (not shown).

The liquid-gas mixing unit 16 contains two mixers. The mixer contains a metal pipe, have 0

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the aperture, uniformly distributed along the length and circumference. The pipe is placed inside the chamber. From the outside of the pipe, through the holes, gas is supplied to the inside of the pipe, where the fluid moves. The mixers differ in the diameters of the pipes and the diameters of the holes in them, thus achieving an expansion in the flow range of the gas-liquid mixture (not shown).

The oil and water mixing unit 17 (Fig. 3) contains a pump 27, to the outlet of which a check valve 2Я is connected, a bypass line with the first valve 29, a second valve 30. I

Site 18 test lines contains a set of interchangeable test pipelines with different diameters of the nominal passage (not shown).

The pressure control unit 19 comprises pressure and level control branches (Fig. 4). The pressure control branch includes a pressure transducer 31 connected to a pressure controller 32, the output of which is connected to the control valve 33 actuator. The level control branch includes a level converter 34 connected to the measuring unit 35. The measuring unit 35 is connected to the regulator Level 36, the output of which is connected to the actuator of the control valve 37. The control branches are connected to the outlet connections of the separation tank 38.

The device works as follows;

The components of the gas-liquid flow gas, oil and water flow into blocks 4, 9, 10-flow creation from tanks 1, 2, 3. At the same time, part of the oil and water from blocks 9, 10 can be returned to tanks 2 and 3 via discharge lines . After the gas flow generation block 4, gas is supplied to the receiver 5. From blocks 5, 9, 10, the flows of the components enter the blocks 6, 11, 12 of stabilization and flow control. Part of the flow of oil and water from blocks 11, 12 can be returned to the tanks 2 and 3 along the lines of liquid discharge.

From units 6, 11, 12, gas, oil and water flows into flow measurement units 7, 13, 14.

The target flow rate is maintained by blocks 6, 11, 12, using signals from feedback from blocks 7, 13, 14 of flow measurement. Next, the gas flow through the damping unit 8 enters the second inlet of the liquid and gas mixing unit 16.

The oil and water flows through the oil and water flow switching section 15 can flow either to the inputs of the oil and water mixing unit 17 or separately to the first input of the liquid and gas mixing unit 16.

In order to mix, the oil and water flows to the inlet of the pump 27, which is part of the oil and water mixing block 17, and has a bypass line with a valve 29. As the performance of the pump 27 is no less than twice the capacity of the blocks. 9 and 10 of creating the flow of oil and water, this then allows the emulsion to circulate through the pump 27 before it is supplied to the liquid-gas mixing unit 16.

From the output of the liquid and gas mixing unit 16, the oil-water gas mixture enters the node 18 test lines. The operating pressure in node 18 of the test lines is maintained by the JCOM 19 pressure control unit.

In the pressure control branch (Fig. 4), the signal from the pressure converter 31 is supplied to the regulator 32, which regulates the actuator of the regulating valve 33, which maintains the working pressure of the gas-liquid stream in the separation tank 38. The predetermined pressure value is maintained with minor fluctuations in the level of the liquid in the separation tank 38.

To maintain the level, the signal from the measuring unit 35 is used, which is fed to the regulator 36, which performs a regulating effect on the actuator of the regulating valve 37.

From the separating tank 38, the gas is directed through the control valve 33 to the gas tank 1.

The liquid leach from the separation tank 38 through the control valve 37 enters the sump 20, in which the mixture separates into oil and water. From the sump

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20 oil and water are sent in a tank 2, 3 for oil and water.

Highly accurate reproduction of component costs is achieved by the independent operation of each of the three flow lines. In addition to Toi: o, the construction of the flow measurement units 7, 13, 14 provides for the possibility of using any of the known (currently existing) means for measuring the flow. This allows, if necessary, to use measuring instruments that satisfy the requirements of conducting an experiment or calibrating measuring instruments.

Claims (3)

1. Device dp for reproducing gas-oil production expenses of oil wells, containing lines for reproducing gas and oil flows with sequentially connected production, stabilization and control units, flow measurement and capacities, respectively, for gas and oil, whose outputs are connected to gas and oil flow creation units , a unit for mixing liquid and gas, the output of which is connected to an assembly of test lines, characterized in that, in order to improve reproduction accuracy by creating oil and gas sweats grips with a predetermined ratio of components and their consumption, it is equipped with a water consumption reproduction line, including creation, stabilization and control units, flow measurement and water tank, oil and water flow switching unit, oil and water mixing unit, damping unit, sump, unit pressure control, the first, second and third inlets of the water tank are connected respectively to the first outlet of the sump, the second step of the stabilization unit and controlling the water flow and the second outlet of the unit created and water flow, the first inlet of which is connected to the outlet of the water tank, and the outlet is connected to the first inlet of the stabilization and flow control unit, the second inlet of which and the first outlet are connected respectively to the second outlet and the inlet of the water flow measurement unit, the outlet of which is connected to the first the input of the oil and water flow switching unit, the second input of which is connected to the output of the oil flow measurement unit, the third and fourth outputs are connected respectively to the first and second inputs of the oil and water mixing unit, the output to Secondly, they are connected to the first and second outputs of the oil and water flow switching unit and the first input of the liquid and gas mixing unit, the second input of which is connected to the output of the damping unit, while the second input of the gas tank is connected to the output of the gas flow generating unit, the second output and the first the inlet is connected respectively to the second sump and the first output of the pressure control unit, the inlet of which is connected to the output of the test lines assembly, the output is connected to the first sump inlet, the second output of which is jporo first input emkos- minute for oil, the third and second inputs t which are connected respectively to the second output of the oil flow creating unit and the second output of the oil stabilization and flow control unit, the second input of which is connected to the second output of the oil flow measuring unit, the first and second outputs of the gas flow measuring unit being connected to the input of the damping unit and the second input gas stabilization and control unit, 2. A device according to claim 1, characterized in that the oil and water mixing unit is designed as a pump with a check valve, the inlet and outlet of which are connected by a bypass line and to the outlet of which a check valve is connected. 3. The device according to claim 1, characterized in that the pressure control unit is made in the form of a separation tank with pressure and level control branches. 222k 23 .1 26 23 2 25 2В l 23 25 26 t FIG. 2 ChZh1 / (& tf.4 1A90267 - p nHXl30 -IX | - 29 Hxl-j fig.Z Perdy Bihod J4 J5 Jff Second Exit