Comprehensive Evaluation of Drilling Risk Based on Unascertained Measurement
نویسندگان
چکیده
Drilling engineering is not only a systematic engineering that involves several workcategories, work procedures,intersectant and continuous operation, but also is a concealed underground engineering. There are uncertain factors in drilling projects, which have the characteristics of high investment and risk. On the basis of the overall analysis of the two factors of geology and engineering, the risk evaluation model of drilling project is established by creating the hierarchy structure of drilling risk and introducing the uncertain measure comprehensive evaluation method. Taking Yanchang Oilfield 21 Well as an example, a comprehensive evaluation is studied and then draw a reliable conclusion. Therefore, unascertained measure evaluation method is applicable, efficient, and necessary to promote safety production, which provides the new way for risk assessment of drilling project..
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