Eccentric separate-layer injection well holographic tester and test method

A tester and injection well technology, which is applied in the directions of measurement, earthwork drilling, wellbore/well components, etc., can solve the problems of heavy workload, achieve the effects of reducing expenses, reducing the workload of workers, and improving work efficiency

Active Publication Date: 2017-09-19
黑龙江震泰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 injectio

Method used

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  • Eccentric separate-layer injection well holographic tester and test method
  • Eccentric separate-layer injection well holographic tester and test method
  • Eccentric separate-layer injection well holographic tester and test method

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific embodiment:

[0015] Such as figure 1 , figure 2 , image 3 As shown, a holographic tester for an eccentric layered injection well includes a downhole tester and a data acquisition plug. The downhole tester includes a rope cap 2 and a main body A10. The main body A10 is divided into two parts by an upper partition and a lower partition. There are three upper, middle and lower cavities, and an inclined hole is opened on the upper partition; the upper part of the rope cap 2 is connected to the cable 1, the core wire of the cable 1 is connected to the circuit board 4 at the lower part, and the rope cap 2 is connected to the outside of the circuit board 4 The lower part of the sheath 3 is connected to the main body A10, and the upper and lower sides of the upper cavity of the main body A10 are respectively equipped with a sensor A5 and a sensor B6. A spring A8 is radially fixed in the cav...

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PUM

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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 ...

Claims

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Application Information

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IPC IPC(8): E21B47/06E21B47/00
CPCE21B47/00E21B47/06Y02E10/10
Inventor 季洪图梁爽季文婷李明贞朱晓晗王玉山
Owner 黑龙江震泰科技有限公司
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