Data acquisition and transmission device for near-bit measuring instrument

A technology of measuring instruments and transmission devices, which is applied in the field of data acquisition and transmission devices, can solve problems such as lack of data communication channels, inability to achieve data acquisition and analysis, and inability to acquire and transmit measurement data of measuring instruments close to drill bits, etc., to achieve reliable Data, to ensure the effect of real-time collection and upload

Active Publication Date: 2012-04-04
GOALTECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] At present, in the field of LWD technology in oil drilling, the near-bit measuring instrument is close to the drill bit, and the upper end is connected with the drilling instrument through

Method used

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  • Data acquisition and transmission device for near-bit measuring instrument
  • Data acquisition and transmission device for near-bit measuring instrument
  • Data acquisition and transmission device for near-bit measuring instrument

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Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic structural diagram of the data acquisition and transmission device of the near-drill measuring instrument provided by the embodiment of the present invention, figure 1 Middle: The data acquisition and transmission device includes a near-drill measuring instrument, an instrument while d...

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Abstract

The invention discloses a data acquisition and transmission device for a near-bit measuring instrument. The data acquisition and transmission device comprises the near-bit measuring instrument, an instrument while drilling, a communication line and a sliding ring, wherein a wiring groove is formed on the metal outer wall of a screw drilling tool of the near-bit measuring instrument; the screw drilling tool of the near-bit measuring instrument is connected with the instrument while drilling through the sliding ring; the communication line is arranged in the wiring groove; the communication line and the metal outer wall of the screw drilling tool form a single line serial bus communication link; and data is sent and received by the communication line in a half duplex time sharing communication mode. By the device, communication between the near-bit measuring instrument and the instrument while drilling can be realized, the measured data of the near-bit measuring instrument is acquired and uploaded in real time, and reliable data is provided for real-time formation evaluation.

Description

technical field [0001] The invention relates to the technical field of logging-while-drilling for oil drilling, in particular to a data acquisition and transmission device for a measuring instrument near a drill bit. Background technique [0002] At present, in the field of LWD technology in oil drilling, the near-bit measuring instrument is close to the drill bit, and the upper end is connected with the drilling instrument through the screw drilling tool. The measurement data of the near-drill measuring instrument is collected and transmitted, which cannot achieve timely and effective data collection and analysis. Contents of the invention [0003] The purpose of the present invention is to provide a kind of data acquisition and transmission device of the near-drill measuring instrument, by which the communication between the near-drill measuring instrument and the drilling instrument can be realized, and the real-time collection and uploading of the measuring data of the...

Claims

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Application Information

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IPC IPC(8): E21B47/12
Inventor 刘海卜纲冯泽东石峻峰潘光玮王小虎
Owner GOALTECH
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