摘要
最大水平主应力数值是油气藏开发中应力场动态分析的先决条件。对比最大水平主应力各测量方法基本原理和局限性,认为油气藏开发中水压致裂法计算该应力值具有更好的适用性和准确性;统计国内外18个区域地应力测量结果,成功给出了一个新的最大水平主应力计算经验公式,仅需考虑孔隙压力、上覆岩层压力、最小水平主应力等三个较准确、易获取的参数,该公式对于水平应力各向异性较强的地层更为适用。
The maximum horizontal principal stress is a prerequisite parameter for dynamic analysis of stress field in oil/gas reservoir development.Based on the features and limitations of different methods for the maximum horizontal principal stress,the hydraulic fracturing method is considered as proper approach in oil and gas reservoir development.Tested stress data in 18 regions worldwide were collected to obtain a new empirical formula for calculation of the maximum horizontal principal stress.The formula only needs to consider the pore pressure,overburden stress,and minimum horizontal stress,which are the accessible and high accuracy parameters.The formula is applicable for a formation with strong anisotropy of horizontal stress.
作者
张洋洋
郑黎明
李成华
刘玉泉
彭龙
Zheng Liming;Li Chenghua;Liu Yuquan;Peng Long(China University of Petroleum(East China),Qingdao 266580,China)
出处
《石化技术》
CAS
2016年第11期170-171,173,共3页
Petrochemical Industry Technology
关键词
最大水平主应力
油气藏
开发
水压致裂
准确性
maximum horizontal principal stress
oil and gas reservoir
development
hydraulic fracturing
accuracy
