Logging instrument pushing device with good stability

Abstract

The invention discloses a logging instrument pushing device with good stability. The logging instrument pushing device comprises an outer shell, a logging instrument body and a pushing outer arm; a wear-resistant rubber strip is fixed to the outer wall of the outer shell, and a micro air cylinder is mounted in the outer shell; a piston rod is arranged on one side of the micro air cylinder, and a first pushing plate is fixed to one end of the piston rod; a second pushing plate is mounted on one side of the first pushing plate, and a spring is welded between the first pushing plate and the second pushing plate; sliding blocks are fixed to the two ends of the first pushing plate and the two ends of the second pushing plate correspondingly; a sliding groove is formed in the inner wall of the outer shell; the logging instrument body is mounted on the outer side of the middle of the second pushing plate; and an end cover is fixed to the top end of the outer shell. According to the logging instrument pushing device, through arrangement of the spring, a certain elastic relaxation space exists between the first pushing plate and the second pushing plate, thus rigid contact is not generated when the end of the logging instrument body at the other end of the second pushing plate is attached to the well wall, and thus the end of the logging instrument body is prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of well logging instruments, in particular to a well logging instrument pushing device with good stability. Background technique [0002] The logging instrument is a special geophysical instrument for measuring the physical properties of rocks and coal seams and the technical status of drilling in boreholes. Used in the field of sinking, it can continuously scan the well wall, and can also scan any horizontal horizontally, and provides technical data such as the vertical section of the wellbore, the horizontal section, the effective section of the wellbore, and the deviation distance of the wellbore. The use of logging instruments can prevent wellbore deviation, reduce construction period, speed up construction progress, ensure project quality, and have obvious indirect economic benefits and very significant social benefits. Some logging methods, such as density logging, require the detector to be attached ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a well logging tool pushing device with good stability, so as to solve the problem that the general structure of the existing logging tool pushing device proposed in the above-mentioned background technology can only be applied to flat well walls. When the shape is irregular or inclined, the push arm cannot be adjusted flexibly, so that the end of the main body of the logging tool cannot be effectively attached to the well wall, and the main body of the logging tool does not have the corresponding elastic relaxation during use. structure, so that the end of the main body of the logging tool is prone to rigid contact with the well wall, resulting in damage

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