SU1629601A2 - Apparatus for preparing and supplying fluid for operation of hydraulically powered pumps - Google Patents

Abstract

The invention relates to the oil industry and can be used for the operation of oil wells by hydraulic actuating pumps. The purpose of the invention is to reduce the energy costs of transporting well products. An installation for the preparation and supply of a working fluid for a hydraulic drive, from a drainage pump to a water pump, contains a gravity separator (HS) 1, a circulation pump 2 connected to wells, connected to C1, a cyclone (C) 3 connected to circulation pump 2 and oil gathering line 4 The installation also includes a pump 5 for supplying working fluid to the wells and associated with HS 1 CH and shut-off and control equipment installed on the connection lines between C 3, oil gathering line 4 and wells, as well as an adjustable valve 6 and line 7 g hydraulic communication through the regulating valve 6 between the central locking system and the HS 1; Prius E3 3 has a 8.1P 9 sludge line (TP) connecting it with the pump 5 days of working fluid supply, and TP 10, on which the control valve b is installed, through which 3 communicates with the inlet TP 11. The pump 5 for supplying the working fluid of the jack has an TP 12 communicated through the flow regulators 13 with hydraulic cranking pumps through the TP 14, on which the pressure regulator 15 is installed, and communicated with the inlet TP 11 and HS 1. Installation 2 27 (L | O Exit S nkrtesbor Water and gas WS from one - of them about with IM

Description

It is also equipped with an additional TP 16 with a check valve 17 for the outlet of produced water and gas, which hydraulically connects HS 1 with C 3 and line 18 for removal of produced water and gas. Oil from the well enters the inlet TP 11 in HS 1, where separation into oil, gas and water occurs. Oil is pumped to pump 2, then fed

them through the C 3 to the pump 5, which injects it into the wells to the hydraulic actuator pumps. Water and mechanical impurities from C 3 are fed through lines 8 and 29 to the sump. Water and gas from the HS 1 for additional TP 16 is fed into the sump. When filling GS 1 with oil, valve 26 opens and the oil is discharged into oil collecting line 4. 1 Il.

The invention relates to the oil industry, can be used for the operation of oil wells by hydraulic actuating pumps, and is an improvement of the installation according to the main ed. No. 1435765.

The purpose of the invention is to reduce the energy costs of transporting well products.

The drawing shows the setup diagram for the preparation and supply of working fluid.

An installation for preparing and supplying a working fluid for driving hydraulic pump pumps comprises a gravity separator 1 connected to wells, a circulation pump 2 connected to a gravity separator 1, a cyclone 3 connected to a circulation pump 2 and an oil collecting line 4, a pump 5 for feeding the working fluid in the well and associated with the gravity separator 1, cyclone 3 and the shut-off and control equipment installed on the communication lines between the cyclone 3, the recovery line 4 and the wells, and the control valve 6 and 7 iju fluid communication through the control valve 6 between the cyclone 3 and a gravitational separator 1.

Cyclone 3 also has sludge pipe 8 and pipe 9, which connects it to the pump 5 for supplying the working fluid, and pipe 10, on which the control valve 6 is installed, through which the cyclone 3 is connected to the inlet pipe 11 of the gravity separator 1.

The pump 5 for supplying the working fluid also has a pipeline 12, communicated through flow controllers 13 with hydraulic well pumps (not shown), through pipeline 14, on which the pressure regulator 15 is installed, is also connected to the inlet pipeline 11 of the gravity separator 1.

The installation is also equipped with an additional pipeline 16c with a check valve 17 for the discharge of produced water and gas, which hydraulically connects the gravity separator 1 with the cyclone 3 and line 18 for the removal of produced water and gas.

In addition, in a gravity separator 1 having an inlet compartment 19, a settling compartment 20 and an oil compartment 21, two coaxially arranged vertical pipes 22 and 23 are installed. The pipe communicates from below and above with the settling compartment 20, and the pipe 22 communicates with the settling compartment 20 only at the top, and the lower part is hydraulically connected to the additional pipeline 16. In the oil compartment, a sensor 24 of the level controller 25 is installed, installed on the oil collection line 4 equipped with a check valve 26.

The slurry pipeline 8, equipped with a valve 27 and a check valve 28, is connected to an additional pipeline 16 by a line 29 with a valve 30. Non-return valves 31 and 32 are installed on the pipeline 14 and line 7.

The installation works as follows.

At the initial start-up of the installation, the entire circulation system is filled with oil - working fluid (RJ) from external sources. Subsequently, the mixture of well production and RJ through pipeline 11 enters the inlet compartment 19 of separator 1, where gas is separated from the liquid phase. Next, the mixture of oil and water enters the settling compartment 20 of separator 1, where the liquid is separated into oil and water. Oil flows into the oil compartment 21 of separator 1, and water enters the pipe 29 through its lower end and is discharged into pipe 23, from which, together with gas, enters the additional pipeline 16 and is sent to a sump (not shown) for final cleaning before pumping into the reservoir. Gas separated from

water, along with residual oil from the sump, enters the oil collection line 4 after the level 25 regulator. Part of the oil (RJ) from the oil compartment 21 of separator 1 goes through the pipeline to the circulation pump 2, and the other part of the oil through the level controller 25 and the check valve 26 goes to the oil collection line 4 and goes to the CSN or DSP.

From the circulating pump 2, oil (RJ) passes through line 19 to cyclone 3, where the RJ is finally cleaned from mechanical impurities (MP) and water. Water from the MP from the cyclone 3 through the slurry pipe 8 and pipe 29 through the check valve 28 and the valve 30 enters the pipe 16, and then into the water sump. If oil with an insignificant amount of water is removed from the cyclone 3 MP, then this mixture is fed to the oil collection line 4 through valve 27. At the same time, valve 30 is closed.

The purified RJ from cyclone 3 via pipeline 9 enters pump 5 for supplying RJ, under high pressure through pipeline 12 through flow regulators 13 is supplied to wells for driving submersible hydraulic pumps of borehole pumps. The supply of the circulation pump 2 exceeds the supply of the pump 5, thereby ensuring its normal operation with a sufficient volume of the RJ at the intake. In this case, the excess of the RJ through the 32-meter non-return valve, the regulating valve 6 goes into the inlet pipe 11 of the separator 1, and the regulating valve 6 regulates the pressure at the pump inlet 5. The excess of the RJ from the pump 5 for supplying the working fluid through the pipe 14 pipeline 11. At the same time, the pressure regulator 15, throttling excess RJ, maintains the necessary pressure in the pipeline 12 for normal operation of borehole pumps. By controlling the flow rate, each of the controllers 13 ensures an optimal withdrawal of fluid from oil wells.

In the steady state operation of the proposed facility, the mixture of RC and well production enters the inlet pipe 11 of separator 1, and thus the continuous process continues. In this case, the well production is divided into two streams: oil and gas are directed to the oil collection and treatment system, and water is discharged and injected into the reservoir.

Claims (1)

The invention The installation for the preparation and supply of working fluid to drive hydraulic pumps according to ed. No. 1435765, in order to reduce the energy costs of transporting well products, it is provided with an additional pipeline with a check valve for the production of produced water and gas, which hydraulically connects the gravity separator with a cyclone and a line for the removal of produced water and gas.