Volume 41 Issue 4
Jul.  2013
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Abstract
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Guan Zhichuan, Wei Kai, Fu Shenglin, Zhao Tingfeng. Risk Evaluation Method for Drilling Engineering Based on Interval Analysis[J]. Petroleum Drilling Techniques, 2013, 41(4): 15-18. DOI: 10.3969/j.issn.1001-0890.2013.04.004
Citation: Guan Zhichuan, Wei Kai, Fu Shenglin, Zhao Tingfeng. Risk Evaluation Method for Drilling Engineering Based on Interval Analysis[J]. Petroleum Drilling Techniques, 2013, 41(4): 15-18. DOI: 10.3969/j.issn.1001-0890.2013.04.004
shu

Risk Evaluation Method for Drilling Engineering Based on Interval Analysis

  • 1.

    School of Petroleum Engineering, China University of Petroleum (Huadong), Qingdao, Shandong, 266580, China;

  • 2.

    CNPC Bohai Drilling Engineering Company Limited, Tianjin, 300280, China

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  • Received Date: May 14, 2013
  • Revised Date: June 02, 2013
    Graphical Abstract
    • Abstract
  • In view of the uncertainty in basic drilling parameters,through the analysis of mechanical risk mechanism of downhole accidents in drilling,non-probabilistic reliability evaluation method was established for drilling engineering risk based on interval analysis method and reliability theory.This method could calculate risk factor after risk evaluation function and the upper and lower bounds of risk factors were established according to prior information.Risk evaluation functions for several common downhole complexities were set up in the paper while the formulas of risk factors were derived from interval variable algorithm.Taking Well W in some western region as an example,the evaluation results indicated that the method,simple and practical,could satisfy the needs of engineering practice.
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    • References (11)
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