Perforation pressure meter as well as dispenser and fisher thereof

Abstract

The invention relates to a perforation pressure meter as well as a dispenser and a fisher thereof. The perforation pressure meter comprises a power supply component, a circuit protection cylinder, a pressure collecting component and a pressure transmission joint, wherein the power supply component, the circuit protection cylinder and the pressure transmission joint are sequentially and fixedly connected; and the pressure collecting component is arranged inside the pressure transmission joint. The invention provides the pressure meter capable of descending a well with a perforation gun to monitor pressure variation of the inside of an oil pipe and a formation position and bearing an instant high-pressure impact. The dispenser and the fisher which are used before and after transmission operation can be conveniently and rapidly used for dispensing and fishing the perforation pressure meter.

Description

technical field [0001] The invention belongs to the technical field of oilfield well testing operations, and relates to a device for protecting pressure gauges during perforation testing and joint construction in oil and gas field development, in particular to a perforation pressure gauge, a perforation pressure gauge dispenser and a fishing device. Background technique [0002] Downhole measurement is an indispensable work in the process of oilfield development, and downhole pressure is an important parameter for measurement, especially for the monitoring and control of combined perforation construction. [0003] At present, most of the electronic pressure gauges used in the development and exploration of oil and gas fields cannot withstand strong vibrations, and the sensors cannot withstand instantaneous high-pressure shocks, resulting in test failures and affecting the smooth progress of test work; At the same time, the perforating bullet residue remains in the tunnel, wh...

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Problems solved by technology

[0003] At present, most of the electronic pressure gauges used in the development and exploration of oil and gas fields cannot withstand strong vibrations, and the sensors cannot withstand instantaneous high-pressure shocks, resulting in test failures and affecting the smooth progress of test work; At the same time, the perforating bullet residue remains in the tunnel, which reduces the seepage capacity of the tunnel and reduces the accuracy of the pressure gauge test; after the completion of the perforation test joint operation, most of the perforating downhole instruments are firstly pulled out. Then take out the electronic pressure gauge to obtain the test data, the test operation procedure is complicated and the efficiency is low; the above situations prevent the electronic pressure gauge from being widely used in the joint construction of perforation test

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