Flow guide type centering device and measurement while drilling equipment

Abstract

The invention provides a flow guide type centering device and measurement while drilling equipment. The flow guide type centering device comprises a centering device body, two wiring plugs, a lead wire and a wire winding rod, wherein the centering device body is provided with a wire passing hole; the two wiring plugs are arranged at two ends of the wire passing hole respectively; wiring terminalsare arranged on the two wiring plugs; at least one wiring plug can rotate relative to the wire passing hole; the lead wire is arranged in the wire passing hole and two ends of the lead wire are fixedly connected with the corresponding wiring terminals in the two wiring plugs respectively; the wire winding rod is arranged in the wire passing hole; at least one wiring plug is connected with the wirewinding rod; when the two wiring plugs rotate relatively, the lead wire is wound on the wire winding rod. In actual utilization, the lead wire moves along with the centering device body and does nothave relative friction with a side wall of the wire passing hole, so that a condition that the testing accuracy of the measurement while drilling equipment is influenced when the measurement while drilling equipment leaks electricity or an external interfering signal exists is avoided.

Description

technical field [0001] The present invention relates to the technical field of drilling exploration, in particular to a flow-guiding centralizer. In addition, the present invention also provides a measurement-while-drilling device using the aforementioned flow-guiding centralizer. Background technique [0002] During the drilling process, in order to measure parameters such as the wellbore trajectory, measurement-while-drilling equipment is installed in the casing near the drill bit. The measurement-while-drilling device includes multiple functional modules such as an information collection module and a battery module. Due to the limitation of the casing size of the drilling equipment, the various functional modules of the measurement-while-drilling equipment are arranged in series along the casing extension direction, and are connected to each other through a diversion type centralizer. [0003] In order to realize the electrical connection between different functional mod...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of damage to the insulation layer of the wires caused by the friction between the wires in the wire-passing hole and the side wall of the wire-passing hole when the existing diversion-type centralizer is used, the present invention provides a new diversion-type centralizer; The invention also provides a measurement-while-drilling device using the aforementioned diversion-type centralizer

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