Eccentric separate-layer injection well holographic tester and test method

Abstract

The invention relates to an eccentric separate-layer injection well holographic tester and a test method. According to the eccentric separate-layer injection well holographic tester and the test method, the problems that three workloads are completed with needing three-time measurement in an existing test method, the operation process is complicated, and the workloads are large are solved. The eccentric separate-layer injection well holographic tester is characterized in that the down-well tester comprises a main body A, a sensor A and a sensor B are arranged in an upper cavity of the main body A, and a lower cavity of the main body A is connected with a guide claw; a data collecting blanking plug comprises a salvaging guide press rod and a main body B, and the upper part of the salvaging guide press rod is sleeved with a sliding sleeve; and the test method of the tester includes the following steps that the down-well tester is sent to a designated layer position by cables, formation pressure is sent to the sensor B of the down-well tester, oil pipe pressure is received by the sensor A, signals are transmitted to a ground data analyzer through the cables, and front-mouth pressures and back-mouth pressures of all separated injection layer sections are tested; and separate-layer flow and separate-layer injection pressure are detected, and the leakproofness of a separating device is tested. According to the eccentric separate-layer injection well holographic tester, the three workloads can be completed once, the working efficiency is improved greatly, and time and labor are saved.

Description

technical field [0001] The invention relates to the technical field of oilfield downhole testing engineering, in particular to a holographic testing instrument and testing method for eccentric layered injection wells. Background technique [0002] At present, downhole testing projects in oil fields need to test the flow rate, pressure and sealing of eccentric layered injection wells. At the same time, according to the production situation, the tightness of the packer should be inspected irregularly. During the flow test, due to the influence of the downhole environment, the interference is large, such as the influence of dead oil, scaling, and dirt on the pipe string, the accuracy of the measured data is low; the pressure test is especially used in normal production of eccentric layered injection well The layered injection pressure is still blank at present, and the layered injection pressure of each injection interval is an extremely important index for the development of ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at overcoming the problem that the three workloads of the existing testing method in the background technology require three measurements to complete the cumbersome and heavy workload, and provides a holographic tester for eccentric layered injection wells. The eccentric layered injection wells The holographic tester can go down the well to complete three tasks at one time, that is, the inspection of layered injection pressure, flow rate and seal of the packer, which greatly improves the work efficiency and saves time and effort

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