SU1435765A1 - Installation for preparing and feeding working fluid for driving hydraulically driven pumps - Google Patents

Abstract

FIELD: oil production industry, m. used to operate oil wells. The goal is to improve performance by reducing overheating / working fluid, improving its quality while reducing metal consumption. The installation contains a gravitational cenajiaTop (HS) I associated with wells, a circulation pump 2 connected to HS 1. A cyclone (C) 3 and oil collector 4 are connected to pump 2. A pump 5 is connected to C 3 to supply working liquids in wells connected to HS 1. Between C 3, line 4 and well on Li (L

Description

These connections are installed beyond the normative regulating fittings. Hydraulically, C 3 is connected through control valve 6 with HS 1. The products extracted from wells from D 1 through line 4 are diverted into the oil collection field system. Sludge is also discharged from C 3. To clean the oil from water, the volume of the HS 1. is selected on the basis of the residence time of the liquid in it, sufficient to separate the oil sump. When returning excess liquid from the central part and pump 5 for supplying liquid while maintaining the same; This performance may reduce the volume of the separator. 1 il.

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The invention relates to the oil industry for operating oil wells equipped with hydraulic pumps.

The aim of the invention is to increase the operational performance by reducing the possibility of overheating of the working fluid, increasing its quality while reducing the metal consumption.

The drawing shows the scheme of the proposed installation.

An installation for preparing and supplying a working fluid for driving hydraulic pump pumps comprises a boundary separator 1 connected to wells, a circulation pump 2 connected to a gravity separator 1, a cyclone 3 connected to a circulating pump 2 and a gathering line 4, a pump 5 for supplying the working fluid to the wells, and associated with the gravity separator 1 cyclone 3, and shut-off and control valves installed on the communication lines between the cyclone, the oil collection line and the wells, and the control valve 6 and lin w fluid communication through the control valve between the cyclone 3 and a gravitational separator 1.

Cyclone 3 also has a sludge line 7 and a pipe 8 connected to a pump for supplying working fluid 5, and a pipe 9 on which a control valve 6 is installed, through which cyclone 3 is connected to the inlet pipe 1 of separator 1. Pump 5 for supplying working fluid It also has a pipeline 1 1 communicated through flow regulators 12 with hydraulic wells with pumps

not shown) by means of a pipeline 13 on which a pressure regulator 14 is installed, a pump 5 for supplying a working fluid is also connected to the inlet pipeline 10 of a separator 1. The check valves 15-18 are also shown in the drawing.

The installation works as follows.

Initial startup is set. In addition, the entire circulation system is filled with oil - working fluid (RJ) from external sources. Further, the mixture of well production and RJ through pipeline 10 enters the separator i, where the separation of oil from petroleum gas, partly from mechanical impurities and produced water occurs. Through the pipeline, the oil enters the intake of the circulation pump 2, and further along the pipeline into the cyclone 3, where the oil is cleaned of mechanical impurities that are discharged through the slurry pipeline 7 into the field gathering system with part of the gastric cancer. The finally refined oil — RJ through the injection pipeline 8, under the pressure necessary for the normal operation of the installation, goes to the intake of the pump 5 for supplying the working fluid. The capacity of the circulation pump 2 exceeds the supply of the pump 5 for supplying the working fluid, thereby ensuring its normal operation with a sufficient volume of RJ on the buffer (at the inlet). In this case, the excess of the RJ through the check valve 17 and the control valve 6 goes into the pipe. wire 10, with the regulating valve 6 regulating the pressure in the pipeline 9. From the pump 5 for supplying

the working fluid through the pipeline 11 RZH under high pressure flows through the flow controllers 12 to the hydraulic actuator well pumps. Excess fluid from pump 5 to supply working fluid through conduit 13 returns to the inlet of separator 1. At this pressure regulator 14, throttling excess fluid, maintains the necessary pressure in conduit 13 for normal operation of well pumps and regulating fluid flow each from flow controllers 12 to ensure optimal fluid withdrawal from oil wells. Production from wells is extracted from separator 1 through pipeline 4 through non-return valve 16 to the field oil extraction system. The sludge from the cyclone 3 is also discharged there. In order to clean the oil from the water, the volume of the separator 1 is selected on the basis of the time it takes for the liquid to be enough to separate the oil from the water. When returning excess RZ from the clone 3 and pump 5 to supply the working fluid, while maintaining a constant performance, it is possible to reduce the volume of the separator, i.e. reduction of metal installation. While maintaining the volume of the separator - reducing the time the fluid stays in the separator, thereby increasing the productivity of the installation, it is possible to increase the number of hydraulic actuator wells.

pumps. In addition, the quality of the RJ is improved due to a decrease in the content of mechanical impurities. As in the cycle of the separator 1, oil with a lower concentration of mechanical impurities is supplied. As a result, the reliability of the operation of the pump 5 for supplying the working fluid and borehole pumps increases.

Claims (1)

Claims An installation for preparing and supplying a working fluid for driving a hydraulically driven pump, comprising a gravity separator associated with wells, a circulation pump connected to a gravity separator, a cyclone connected to a circulation pump and a gathering line, a pump for supplying working fluid into wells associated with a cyclone and a gravity separator and shut-off regulating fittings installed on the communication lines between the cyclone, the oil collecting line and the wells, characterized in that , in order to increase operational performance by decreasing. overheating the working fluid improves the quality of the working fluid while reducing the metal consumption, it is equipped with a control valve, and the cyclone is additionally hydraulically connected through the control valve to the gravity separator.