Device for measuring parameters at submersible electric pump outlet

Abstract

The invention relates to the technical field of downhole oil production monitoring equipment, and in particular to a device for measuring parameters at a submersible electric pump outlet. The device comprises a sensor module which is installed in an oil pipe and located at the submersible electric pump outlet, a signal receiving module which is installed below a submersible motor, a signal line which is connected with the sensor module and the signal receiving module, a signal processing and displaying device which is installed on the ground, and a UVW cable which is connected with the signalprocessing and displaying device and the signal receiving module; the signal line penetrates out of the oil pipe, passes through an annular clearance and penetrates through the interior of the motor to reach the signal receiving module; and the UVW cable penetrates through the interior of the submersible motor and is in a winding form in the submersible motor. The device has the advantages that the measuring device is not influenced by the size of a sleeve; moreover, the abrasion risk and the leakage problem of a capillary steel pipe are avoided; measuring of the multiple parameters at the submersible electric pump outlet can be realized; the precision of measuring of the multiple parameters can be greatly improved; and data transmission in the form of the signal line is used so that the accuracy of parameter measurement can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of downhole oil production monitoring equipment, in particular to a parameter measuring device at the outlet of a submersible electric pump. Background technique [0002] The electric submersible pump is a multi-stage centrifugal pump working underground. It is lowered into the well together with the oil pipe. The ground power supply transmits electric energy to the underground submersible motor through the transformer, control panel and power cable, so that the submersible motor drives the multi-stage centrifugal pump to rotate. Convert electrical energy into mechanical energy to lift the well fluid in the oil well to the ground. In the process of oil production, it is necessary to monitor the oil temperature, pressure and flow at the outlet of the electric submersible pump, so as to understand the well conditions and the operation of the electric submersible pump unit, optimize the production of the oil we...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a parameter measuring device at the outlet of the electric submersible pump. The problem of wear and leakage occurs; solves the defect that the existing capillary steel pipe cannot measure parameters other than pressure; at the same time, it also avoids the risk of blockage caused by the length of the capillary steel pipe, which affects the accuracy of the measurement

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