摘要
从克拉玛依油田三4区石炭系火山岩现今构造形迹特征入手,利用有限元数值分析技术,模拟了三4区石炭系火山岩的古构造应力场应力;然后以岩石破裂强度理论为依据,结合岩石的实际力学参数,计算了三4区石炭系火山岩岩体的破裂接近程度η[1],以此对裂缝的发育程度、类型及方位分别进行了预测。
In San-IV area of Karamay oilfield, we simulate the stress of paleo-tectonic stress field of Carboniferous volcanic rocks according to the research of paleo-current structural characteristics and the numerical analysis of finite element. Then, we calculate η, the rupture approach factor of rock mass in volcanics, according to the rupture density law and real rock kinetic parameters. Finally, we predict fracture growth, type and azimuth to provide a geologic evidence for exploiting volcanic reservoirs.
出处
《天然气勘探与开发》
2007年第3期18-21,共4页
Natural Gas Exploration and Development
关键词
火山岩裂缝
构造应力场
数值模拟
裂缝预测
volcanic rock fracture, tectonic stress field, numerical simulation, fracture prediction
