Response testing device for electromagnetic wave resistivity logging-while-drilling tool

A technology for resistivity logging and inspection devices, which is applied in the fields of instruments, earthwork drilling, wellbore/well components, etc., can solve the problems of time delay, inconvenient handling, large quality and volume of logging tools, etc., and reduce work The effect of volume, simple structure, and easy implementation

Inactive Publication Date: 2012-07-25
THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the development stage of the principle prototype, the response of the tool needs to be tested. However, due to the large mass and volume of the electromagnetic wave resistivity logging tool while drilling, it is very inconvenient to carry it. If the response of the tool is not found until the outdoor calibration If the rules are wrong, it will undoubtedly delay a lot of time, and require a lot of extra work and a lot of unnecessary trouble

Method used

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  • Response testing device for electromagnetic wave resistivity logging-while-drilling tool
  • Response testing device for electromagnetic wave resistivity logging-while-drilling tool
  • Response testing device for electromagnetic wave resistivity logging-while-drilling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment one: see figure 1 , figure 2 , the response inspection device of the electromagnetic wave resistivity logging tool while drilling according to the present invention includes a disc-type insulating support body, and the diameter of the center hole of the disc-type insulating support body matches the diameter of the electromagnetic wave resistivity logging tool while drilling. At least one open-circuit circular metal ring 2 is provided on the support surface of the disk-type insulating support body, and the circular metal ring 2 is gradually distributed outward around the center of the support disk surface of the disk-type insulation support body. The notch end of 2 leads to a quick connector 6, and n resistance-capacitance modules 7 are provided to match the quick connector 6, and n is a natural number.

[0020] 1 is a supporting plate among the figure.

Embodiment 2

[0021] Embodiment two: see Figure 1 ~ Figure 3 The difference between the response inspection device of the electromagnetic wave resistivity logging tool while drilling in this embodiment and the first embodiment is that the structure of the resistance-capacitance module 7 is further described, and the resistance-capacitance module includes m parallel capacitors and p parallel capacitors The resistance-capacitance circuit formed after the resistors are connected in series and the connector matched with the quick joint 6 drawn from the notch end of the circular metal ring 2, the resistance-capacity circuit is connected in series between the two quick joints of the connector. m and p are natural numbers. The present invention is provided with multiple resistance-capacitance modules, image 3 An implementation manner of a resistance-capacitance module is provided.

Embodiment 3

[0022] Embodiment three: see figure 1 , figure 2 , the response inspection device of the electromagnetic wave resistivity logging tool while drilling in this embodiment, the disc-type insulating support body includes a support disc 1 and a rotating drum 8, and the rotating drum 8 is matched and nested on the supporting disc of the disc-type insulating support body 1, the plane where the support disc 1 is located is perpendicular to the center line of the drum 8, and the aperture of the drum 8 matches the diameter of the EWD logging tool.

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Abstract

The invention relates to a testing device for testing response of an electromagnetic wave resistivity logging-while-drilling tool in a room, in particular to a response testing device for an electromagnetic wave resistivity logging-while-drilling tool, which comprises a disk insulating support. The diameter of a central hole of the disk insulating support is matched with that of the electromagnetic wave resistivity logging-while-drilling tool, at least one open circular metal ring (2) is arranged on a support disk surface of the disk insulating support and gradually distributed outwards around the support disk surface of the disk insulating support, and a quick joint (6) is led out of an end of a notch of each circular metal ring and additionally provided with n resistance-capacitance modules (7) in a matched manner, wherein n is a natural number. The testing device is simple in structure and convenient in use, and can guarantee outdoor scale test for the electromagnetic wave resistivity logging-while-drilling tool to a certain degree.

Description

technical field [0001] The invention relates to a test device for checking the response of a while-drilling electromagnetic wave resistivity logging tool indoors, that is, a response testing device for a while-drilling electromagnetic wave resistivity logging tool. Background technique [0002] In oil exploration, with the increase in the drilling workload of onshore horizontal wells and highly deviated wells and the demand for offshore drilling, conventional wireline logging can no longer meet the needs of logging technology, so logging while drilling technology has developed very rapidly . It can realize drilling and logging at the same time. It installs the logging instrument close to the drill bit, and performs measurement under the condition that the formation is not significantly invaded and polluted. Compared with the traditional wireline logging, it has good real-time performance, High logging accuracy and other advantages. The electromagnetic wave resistivity logg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00G01V13/00
Inventor 段宝良方辉宋殿光李郴韩宏克郭巍魏少华
Owner THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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