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Communication device of near-bit measurement-while-drilling (MWD) equipment

A measurement-while-drilling and measuring equipment technology, applied in drilling equipment, surveying, drill pipe and other directions, can solve the problems of low measurement accuracy, achieve good guidance for drilling, solve low measurement accuracy, and improve timeliness and accuracy. Effect

Pending Publication Date: 2019-12-31
THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0005] An embodiment of the present invention provides a communication device for near-drill measurement-while-drilling equipment to at least solve the technical problem of low measurement accuracy in the related art due to the lagging measurement position of the measurement-while-drilling instrument

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  • Communication device of near-bit measurement-while-drilling (MWD) equipment
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  • Communication device of near-bit measurement-while-drilling (MWD) equipment

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a communication device of near-bit measurement-while-drilling (MWD) equipment. The communication device comprises a magnetic ring assembled on a drill collar body, and the drill collar body is connected between a screw rod and a MWD non-magnetic drill collar and used for conducting wireless communication with the near-bit MWD equipment through the magnetic ring. Through thecommunication device, the technical problem that in a related technology, the measurement accuracy rate is low due to the lag measurement position of an MWD instrument is solved.

Description

technical field [0001] The invention relates to the electromechanical field, in particular to a communication device for near-drill measuring-while-drilling equipment. Background technique [0002] In the oil drilling engineering of the related technology, it is required that the drilling trajectory can be drilled according to the engineering design requirements, the wellbore trajectory and the geological information of the formation are measured in time, and sent to the ground for reception. According to the received data, the technicians control and adjust the wellbore trajectory, understand the downhole formation conditions, and accurately hit the target. [0003] The measurement-while-drilling instrument string of the related art is installed on the upper end of the screw rod, and the measured data position is about 10 meters away from the drill bit. Due to the delay of the measurement position, the parameters related to the position of the drill bit cannot be measured ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/12E21B17/16E21B49/00
CPCE21B47/12E21B17/16E21B49/00
Inventor 马进钊党明江马振常平平谢玉林
Owner THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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