Analysis on current status and key technology of miniaturization design of near-bit MWD systems

WEI Hairui; ZHU Zhitong; WU Chuan; SHAO Yutao; ZHAO Hongbo; LIU Guang; JIA Wei; DONG Wei; ZHANG Huamin; JIA Minghao and XUE Qianbing; ${author.authorNameEn}

doi:10.12143/j.ztgc.2022.05.021

2022 Vol. 49, No. 5

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Article navigation > DRILLING ENGINEERING > 2022 > 49(5): 156-162

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WEI Hairui, ZHU Zhitong, WU Chuan, SHAO Yutao, ZHAO Hongbo, LIU Guang, JIA Wei, DONG Wei, ZHANG Huamin, JIA Minghao and XUE Qianbing, . 2022. Analysis on current status and key technology of miniaturization design of near-bit MWD systems. DRILLING ENGINEERING, 49(5): 156-162. doi: 10.12143/j.ztgc.2022.05.021

Citation:

WEI Hairui, ZHU Zhitong, WU Chuan, SHAO Yutao, ZHAO Hongbo, LIU Guang, JIA Wei, DONG Wei, ZHANG Huamin, JIA Minghao and XUE Qianbing, . 2022. Analysis on current status and key technology of miniaturization design of near-bit MWD systems. DRILLING ENGINEERING, 49(5): 156-162. doi: 10.12143/j.ztgc.2022.05.021

Analysis on current status and key technology of miniaturization design of near-bit MWD systems

1.Institute of Exploration Techniques, CSGS, Langfang Hebei 065000， China;
2.School of Mechanical Engineering and Electronic Information, China University of Geosciences,Wuhan Hubei 430074, China,Institute of Exploration Techniques, CSGS, Langfang Hebei 065000， China;
3.Oil & Gas Survey, China Geological Survey, Beijing 100083, China

More Information

Corresponding author: ZHU Zhitong, zhuzt@mail.cgs.gov.cn

Received Date: 07 June 2022

Revised Date: 09 August 2022

Abstract

Abstract

Near-bit MWD technology is one of the most promising new technologies in the field of petroleum drilling. It is characterized by near-bit geological and engineering parameter measurement while drilling， transmission， data interpretation and decision control， which can effectively improve the oil and gas zone intersection rate and reduce drilling cost. In this paper， the development and application status of near-bit measurement systems at home and abroad are introduced， and the working principle， structure composition and characteristics of the system are described. In order to meet the demand of small diameter drilling for near-bit measurement technology， the key technical problems to be solved in miniaturization design are put forward. They includes electromagnetic wave wireless communication anti-interference technology， small-diameter turbine power generation technology， downhole MEMS sensor technology， near-bit measurement data interpretation technology， etc， which provides technical basis for the research and development of small diameter near-bit measurement systems in the future.
- near-bit measurement while drilling /
- small diameter drilling /
- electromagnetic wave wireless /
- turbine generator /
- MEMS sensor

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References

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