摘要
针对石油工程中长期存在的三维地应力场分析结果与实际相差较大的问题,提出了区块地应力场有限元精细建模与分析技术流程,为顺北油田某区块建立了三维精细地应力场.根据区块地震波数据信息建立地质层位模型,并结合各个单井位置上的测井信息,得到准确的三维区块地质模型.结果表明,所提出模型最大主压应力的方向在A井位置上与实测值符合.最小水平主应力的数值解和A井位置上对应的解析解之间的误差小于8%,提出的建模方法及分析流程是准确、实用的,得到的精细地应力场数值解具有合理的精度.
Aiming at the problem existing in petroleum engineering for a long time that the analysis results of 3D geostress field have great errors in comparison with actual situations,a technological process for refining finite element modeling and analysis of regional geostress field was proposed,and a refined 3D geostress field for a certain block in Shunbei oil field was established.According to regionally seismic wave data information,a geological stratum model was established.In combination with the logging information at each single-well,an accurate 3D and regionally geological model was obtained.The results show that the direction of maximum principal compressive stress at well-A was in accordance with the measured value.The error of minimum horizontal principal stress between the numerical solution and the analytical solution at well-A was less than 8%.The as-proposed modeling method and analytical process are accurate and practical,and the numerical solution of refined geostress field is of reasonable precision.
作者
陈修平
沈新普
刘景涛
沈国晓
CHEN Xiu-ping;SHEN Xin-pu;LIU Jing-tao;SHEN Guo-xiao(Institute of Petroleum Engineering,SINOPEC Northwest Oil Branch,Wulumuqi 830001,China;The Key Laboratory for Enhanced Oil Recovery in Carbonate Fractured Reservoir,Wulumuqi 830001,China;College of Petroleum Engineering,China Petroluem University(Huadong),Qingdao 266580,China)
出处
《沈阳工业大学学报》
CAS
北大核心
2022年第5期595-600,共6页
Journal of Shenyang University of Technology
基金
国家自然科学基金面上项目(11272216)
中国石油化工股份有限公司重大科技项目(P18021-1).
关键词
地应力场
地震波数据
测井数据
最大水平主应力
最小水平主应力
数值解
地质模型
单井分析
geostress field
seismic wave data
logging data
maximum horizontal principal stress
minimum horizontal principal stress
numerical solution
geological model
single-well analysis
作者简介
陈修平(1988-),男,山东莒县人,高级工程师,博士,主要从事岩石力学和流体力学等方面的研究.
