西南石油大学学报(自然科学版)

• 博导论评 • 上一篇    

基于层次分析法的地层钻井液漏失概率判定

康毅力1,王海涛1,游利军1,杜春朝2   

  1. 1.“油气藏地质及开发工程”国家重点实验室 西南石油大学,四川成都610500
    2. 中国石化西北油田分公司,新疆乌鲁木齐830013
  • 出版日期:2013-08-01 发布日期:2013-08-01
  • 基金资助:

    国家重点基础研究发展规划“973”课题(2010CB226705);国家科技重大专项(2011ZX05005–006–008HZ)。

Probability Determination for Loss Circulation of Drilling Fluids Based on
Analytic Hierarchy Process

Kang Yili1, Wang Haitao1, You Lijun1, Du Chunchao2   

  1. 1. The State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation Engineering,Southwest Petroleum University,Chengdu,Sichuan
    610500,China
    2. Northwest Company,SINOPEC,Urumqi,Xinjiang 830013,China
  • Online:2013-08-01 Published:2013-08-01

摘要:

对待钻层段漏失发生概率进行评价分级,是做好防漏治漏的前提和基础性工作。针对漏失通道复杂性和随
机性的特点,引入层次分析法将控制井漏的各种地质因素及邻井资料等因素层次化,逐层比较各因素重要性,建立易
量化指标的隶属度函数,采用加权合成得到最终的井漏概率评价值,并实例说明该方法在塔河油田钻井实践中的应
用。实例井计算结果表明,使用层次分析法对地层漏失概率进行综合评判具有可行性,有助于防漏预案的制订和治漏
方法的优化。

关键词: 层次分析, 钻井液, 漏失, 概率, 地层

Abstract:

Lost circulation control is one of the technical problems which impose a negative effect on security,smooth,and
highly effective drilling. Geologic and engineering factors are of a major impact on mud loss. The geologic agent is an internal
cause and plays a decisive effect. As the premise and the foundation of loss control,it is necessary to grade probability of
the intervals with loss potentials. In view of the complexity and random characteristic of lost circulation zones,Analytical
Hierarchy Process(AHP)is introduced to analyze the structure of the factor system. By comparing the importance of isostrate
factors,constructing an easily quantified membership function,and by using the weighting synthesis,the final lost circulation
appraisal value has been obtained. Finally,this AHP assessment method is applied to two case wells in Tahe Oilfield. The
results indicated that probability evaluation of lost circulation zones by AHP method is feasible,and is helpful for loss control
design and technology optimization.

Key words: analytical hierarchy process, drilling fluid, lost circulation, probability, formation