油气井用安全避爆点火装置可靠性研究

王峰; 马涛; 李静岑; 陈政; 王喜; 霍达; 刘超瑾; 柳茜茜; 赵振洋

Reliability of Safe Explosion Avoidance Ignition Device for Oil and Gas Wells

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DOI：10.7643/issn.1672-9242.2022.12.006

KeyWord:premature explosion cable perforation spring design finite element reliability

Author	Institution
WANG Feng	Wuhua Energy Technology Co., Ltd., Xi'an , China
MA Tao	Wuhua Energy Technology Co., Ltd., Xi'an , China
LI Jing-cen	Wuhua Energy Technology Co., Ltd., Xi'an , China
CHEN Zheng	Wuhua Energy Technology Co., Ltd., Xi'an , China
WANG Xi	Wuhua Energy Technology Co., Ltd., Xi'an , China
HUO Da	Wuhua Energy Technology Co., Ltd., Xi'an , China
LIU Chao-jin	Wuhua Energy Technology Co., Ltd., Xi'an , China
LIU Qian-qian	Wuhua Energy Technology Co., Ltd., Xi'an , China
ZHAO Zhen-yang	Wuhua Energy Technology Co., Ltd., Xi'an , China

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Abstract:

The work aims to solve the potential safety hazard in the well field caused by the premature explosion risk of detonators in the cable perforation process of petroleum exploitation. A safe explosion avoidance ignition device for oil and gas wells was designed. High safety and high current detonators were used in the device. The design scheme of circuit isolation and explosion transmission sequence isolation was adopted. The type selection design and analysis were carried out to the compression spring in the device, and the simulation experiment of device arming and resetting was completed. The designed safe explosion avoidance ignition device met the requirements of pressure conduction by the spring with a cross-sectional diameter of 5 mm and the spring switched the device to a safe state by overcoming the creep property loss after pressure relief, ensuring the safety of the pipe string under construction and not under construction. The device is used in cable perforation operation to improve the reliability and safety of construction and ensure the safety of on-site operators.