Downhole Data Measurement Method

Abstract

The invention discloses a method for measuring downhole data.The method includes steps of extending a pressure sensor into a first end of a container with openings in two ends, hermetically matching the pressure sensor with the first end of the container, arranging a flexible component at the second end of the container and hermetically matching the flexible component with the second end of the container; filling the container with liquid media; conveying the container to a downhole environment, detecting the pressures of the liquid media in the container by the aid of a sensing head of the pressure sensor and acquiring external pressure signals of the flexible component.The method has the advantages that the pressures are applied to the liquid media in the container by external petroleum via the flexible component when the downhole data are about to be measured by the aid of the method, and accordingly the corresponding pressure data can be acquired by the sensing head of the pressure sensor; the sensing head of the pressure sensor is positioned in the container, is only matched with the liquid media and is not in direct contact with the petroleum while the pressure data are assuredly reliably measured, and accordingly the pressure sensor can be effectively prevented from being blocked or corroded by the petroleum.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a method for measuring downhole data. Background technique [0002] At present, in my country and other oil-producing countries in the world, submersible motors are widely used in oilfields to drive submersible electric pumps to extract crude oil. The traditional submersible electric pump system does not have special downhole measurement data, resulting in unknown downhole temperature. Working under high pressure and low oil production efficiency may even cause motor and pump burning. [0003] In view of the above problems, the prior art measurement method adopts the sensor to collect signals, but the prior art directly contacts the sensing part of the sensor with the oil to realize the collection, and there will be faults such as clogging and corrosion of the sensing head, resulting in inaccurate feedback. Contents of the invention [0004] Aiming at the above problems, t...

AI Technical Summary

Problems solved by technology

It solves the problem that in the existing measurement method, the sensing head of the sensor is in direct contact with the oil, which causes the sensing head to fail easily and affects the measurement accuracy

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