Comprehensive judgment method for hydrogen sulfide disaster risk of abandoned oil wells in coal mining area

• Main Authors: ZHOU DONG, ZHANG ZHIGANG, LIU JUN, CHENG BO, ZHOU GUANGHUA, MA ZHI, SUN BINGXING, ZHU ZHENGLI, MA LINGJUN, MA XINGHUA, LI DAYONG, XU TENGFEI, XU NINGWU, XIANG YANBIN, HE YUNWEN, RAN QINGLEI, YAN PENG, HUANG GUANGLI, ZHANG FENG, WANG ZHEN, CHENG JIANSHENG, MA ZHIYONG, ZHU HAILONG, LI ZHIHENG
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention relates to a comprehensive judgment method for hydrogen sulfide disaster risk of abandoned oil wells in a coal mining area and belongs to the field of coal mine safety. The method comprises the following steps: S1, judging of the dangerousness of a ground area: firstly, investigating and analyzing well completion data of a waste oil well, and determining the integrity of the waste oil well; secondly, surveying the ground position of the oil well, and determining the damage condition and the damage point position of the abandoned oil well; or collecting gas in the waste oil well for component detection and analysis, determining gas components in the well completion, and preliminarily judging the risk of the hydrogen sulfide disaster of the waste oil well; S2, underground local danger identification: for the abandoned oil well with the ground area danger identification being dangerous to the coal mining area, adopting an underground drilling method to carry out underground local danger identificat