Downhole Mechanical Source Design and Its Reliability Analysis Based on Finite Element Method

DOI

10.2991/aeecs-18.2018.26How to use a DOI?

Keywords

Downhole vibration source, Structure design, Reliability analysis.

Abstract

In the directional well anti-collision ground monitoring system, with the well depth increases, the ground monitoring signal intensity decreases, which can not meet the requirements of monitoring. A mechanical downhole source capable of providing a certain strength standard signal and capable of resuming vibrations is designed, which mainly comprises four parts: a lifting device, a torque transmission device, a down strike device and a sealing device. The key locking mechanism of the system was analyzed. The relation between the parameters of the sliding body and the strength and the release force of the mechanism was obtained. The mechanism was verified to regulate the release force in a wide range and satisfy the strength design requirements. Finally, the fault tree model of "failure of source underground" was established, the reliability of downhole source was analyzed, and control measures were put forward according to the possible damage modes.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Gang Liu
AU  - Hang Wang
AU  - Jiayang Wang
PY  - 2018/03
DA  - 2018/03
TI  - Downhole Mechanical Source Design and Its Reliability Analysis Based on Finite Element Method
BT  - Proceedings of the 2018 2nd International Conference on Advances in Energy, Environment and Chemical Science (AEECS 2018)
PB  - Atlantis Press
SP  - 137
EP  - 143
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeecs-18.2018.26
DO  - 10.2991/aeecs-18.2018.26
ID  - Liu2018/03
ER  -