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An Azimuth Electromagnetic Wave Resistivity Imaging Logging While Drilling Tool

A resistivity imaging and logging-while-drilling tool technology, which is applied in construction and other directions, to achieve the effects of easy installation and disassembly, good geosteering function, and improved integration

Active Publication Date: 2021-08-27
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide an azimuth electromagnetic wave resistivity imaging logging while drilling tool to solve the problems of the prior art. Improve the integration of electromagnetic wave instruments while drilling

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  • An Azimuth Electromagnetic Wave Resistivity Imaging Logging While Drilling Tool
  • An Azimuth Electromagnetic Wave Resistivity Imaging Logging While Drilling Tool
  • An Azimuth Electromagnetic Wave Resistivity Imaging Logging While Drilling Tool

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0032] An azimuth electromagnetic wave resistivity imaging logging-while-drilling tool of the present invention solves the problem of integrated design of azimuth electromagnetic wave horizontal detection edge antenna, conventional antenna and gamma detector; adopts the method of deepening the hole of the local inner collar to solve the axial communication of the electromagnetic wave instrument The problem of passing the line; solve the problem of reliability design and winding of the horizontal antenna; solve the problem of shielding and interference of the weak signal of the instrument in the process of transmission and processing.

[0033] see Figure 1 to Figure 8 , figure 1 It is the overall layout of the azimuthal electromagnetic wave resistivity imaging logging-while-drilling tool. The instrument consists of upper diversion sleeve communication assembly 1, lo...

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Abstract

The invention discloses an azimuth electromagnetic wave resistivity imaging logging-while-drilling tool, which includes a drill collar, and the inner upper side of the drill collar is connected with an inner collar assembly for processing the measurement information of the logging tool through locking. The middle part is equipped with a horizontal antenna assembly for detecting formation boundaries and a conventional antenna assembly for measuring formation resistivity parameters. The lower part of the drill collar is equipped with a gamma assembly for measuring formation gamma parameters. The upper and lower ends of the drill collar are There are respectively an upper diversion sleeve communication assembly and a lower diversion sleeve communication assembly for connecting the supporting equipment of the logging tool. The invention solves the problems of azimuth electromagnetic wave detection of stratum boundaries, integrated design of conventional resistivity and gamma detectors, axial communication line design, azimuth horizontal antenna design, etc., and improves the integration degree of electromagnetic wave instruments while drilling.

Description

technical field [0001] The invention belongs to the field of logging-while-drilling equipment in oil drilling, and in particular relates to an azimuth electromagnetic wave resistivity imaging logging-while-drilling instrument. Background technique [0002] In order to evaluate complex geological conditions, under the market conditions of large-scale horizontal well drilling in oilfields, in order to increase the drilling encounter rate, the wellbore trajectory should be kept within the oil layer and the drainage area should be increased. It is urgent to develop a logging-while-drilling tool with edge detection function. Contents of the invention [0003] The purpose of the present invention is to provide an azimuth electromagnetic wave resistivity imaging logging while drilling tool to solve the problems of the prior art. Issues such as communication line design and azimuth level antenna design can improve the integration level of electromagnetic wave instruments while dr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/13
CPCE21B47/13
Inventor 陈鹏王珺卫一多王自力鲍里斯杨颋俞蓓徐韧骆庆鋒和丽真尤嘉祺闫麦奎蒋浩泽范宇翔李留宋森马成祥
Owner BC P INC CHINA NAT PETROLEUM CORP
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