摘要
根据构造变形反演对川西坳陷的变形起主导作用、对圈闭的形成有重要影响的喜山运动的古构造应力场及其边界条件 ,用古构造图和岩石力学参数描述其他地质模型 ,对其主要储层须家河组、沙溪庙组、蓬莱镇组进行了构造应力场数值模拟 ,并应用其结果 ,根据库仑—摩尔破裂准则 ,进行了构造裂缝预测 ,为油气资源评价与勘探部署提供了较可靠的地质依据。
In the paper,the palaeotectonic st ress field and its boundary condition of Himalayan movement,which played an impo rtant role in the deformation of West Sichuan Depression and the formation of tr aps,are inversed according to structural deformations;the other geological model s are described by use of palaeostructural maps and rock mechanical param eters;and the numerical simulation of tectonic stress field is carried out for t he major reservoirs as Xujiahe Formation,Shaximiao Formation and Penglaizhen For mation,then,by applying its results,the structural fracture distribution is pred icted according to Coulomb Mohr Criterion,thus providing reliable geological ba sis for oil and gas resource assessment and exploration deployment.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2002年第3期10-13,共4页
Natural Gas Industry
基金
"九五"国家重点科技攻关项目 (96 - 110 - 0 8- 0 1)中国主要含气盆地分析的部分研究内容
关键词
石油地质
川西坳陷
前陆盆地
有限元
平面应力
构造应力场
数值模拟
裂缝预测
West Sichuan Depression,Foreland ba sin,Finite element,Plane stress,Tectonic stress field,Numerical simulation,Fract ure prediction
