Pressure and the output self-adaptation measurement and control system of electric pump producing well

Abstract

The invention discloses a pressure and the output self-adaptation measurement and control system of an electric pump producing well, comprising an underground pressure sensor (1), a communication cable (2), a multi-functional acquisition instrument (3), a control cabinet (4), a power cable (6) and an electric submersible pump (7), wherein the output end of the underground pressure sensor (1)is connected with the input end of the multi-functional acquisition instrument (3) through the communication cable (2); the output end of the multi-functional acquisition instrument (3) is connected with the input end of a frequency converter (5) inside the control cabinet (4); and the output end of the frequency converter (5) is connected with the input end of the electric submersible pump (7) through the power cable (6). The invention forms the self-adaptation close-loop measurement and control system for sensing, transmitting, processing and controlling underground information, thereby realizing the real-time dynamic monitoring of underground parameters, ensuring the balance of the output quantity and the produced quantity of an oil well, ensuring the normal operation of the electric submersible pump (7) and achieving the purpose of the productivity maximization of the oil well.

Description

technical field [0001] The invention relates to an adaptive measurement and control system for an oil production well, in particular to an adaptive measurement and control system for the pressure and output of an electric pump oil production well. Background technique [0002] Electric submersible pumps have the characteristics of large displacement, high head, simple surface technology, and convenient management, so they are widely used in oilfield development and production. However, the existing electric pump oil recovery technology is basically difficult to automatically adjust the operation status of equipment and adjust the production of electric pump wells according to formation parameters (pressure, temperature, etc.). ZL99223791.2 "A Frequency Conversion Device for Electric Submersible Pumps" discloses a frequency conversion device for electric submersible pumps consisting of a control cabinet and a transformer. The electric submersible pump is evacuated, but its d...

AI Technical Summary

Problems solved by technology

However, the existing electric pump oil production technology is basically difficult to automatically adjust the operation status of the equipment and adjust the production of the electric pump well according to the formation parameters (pressure, temperature, etc.)

ZL99223791.2 "A Frequency Conversion Device for Electric Submersible Pumps" discloses a frequency conversion device for electric submersible pumps consisting of a control cabinet and a transformer. The electric submersible pump is evacuated, but its disadvantage is that it cannot automatically control and adjust the frequency according to the bottom-hole production pressure difference, and cannot adjust the oil discharge volume, which will make the oil well operate under a relatively unstable pressure and production, and affect the bottom-hole oil production

The invention patent of application number 200410050303.0 "a measurement and control system of oil production status" discloses a measurement and control system of oil production status, which belongs to the measurement and control system of mechanical oil production well system. Its information collection device is composed of "power derivative device". , can get a lot of useful information, through the remote control of the system, it can realize a variety of automatic control, but it can not achieve the balance of oil well output and recovery through real-time dynamic monitoring of downhole parameters, and can not realize the maximization of oil well productivity

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