新疆石油地质

新疆石油地质 ›› 2008, Vol. 29 ›› Issue (4): 510-512.

• 应用技术 • 上一篇    下一篇

复杂地质构造条件下地应力模型与图版解释法(为庆祝新疆油田勘探开发研究院成立50周年而作)

杨虎, 刘颖彪   

  1. 中国石油新疆油田分公司勘探开发研究院, 新疆克拉玛依834000
  • 收稿日期:2007-12-25 发布日期:2020-10-09
  • 作者简介:杨虎(1974-),男,新疆克拉玛依人,高级工程师,博士,油气井工程, (Tel)0990-6867940(E-mail)yanghu@petrochina.com.cn.

Ground Stress Model for Complicated Geologic Structures and Chart Interpr etation Method

YANG Hu, LIU Ying-biao   

  1. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2007-12-25 Published:2020-10-09

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摘要： 由于传统水平地应力模型中的构造系数很难准确求取, 无法获得计算水平主地应力的数学式。借助已钻井的测井资料、采用钻井地破试验或水力压裂试验法可较精确地测定最小水平主地应力; 在测井数据反演地层岩石参数的基础上, 利用复杂构造条件下主地应力力学模型, 建立目标井水平主地应力的数学关系并绘制解释图版, 由此求取最大水平主地应力值。该图版解释新方法充分考虑了上覆岩体的自重、地质构造应力及地层孔隙压力, 可较准确的预测勘探目标区块水平主地应力。

关键词: 复杂构造, 地应力模型, 图版解释, 地破试验, 实例

Abstract: Because tectonic stress coefficient from conventional horizontal stress model can hardly be obtained accurately, the corresponding mathematic expression is unable to make. By using the well logging data, formation breakdown test or hydraulic fracturing test, the minimal horizontal main stress can be measured accurately. Based on formation rock strength parameters acquired from logging data inversion calculation, the target well's horizontal main stress mathematic expression is established and the interpretation chart is drawn, and the maximal horizontal main stress can be calculated finally. In this new method, the overlying rock weight, the geologic structural stress and the formation pore pressure are all considered for the purpose of forecasting the horizontal main stress in target area for petroleum exploration.

Key words: complicated structure, ground stress model, interpretation chart, formation breakdown test, case history

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