摘要
苏里格气田属于大型砂岩岩性复合气藏，非均质强、气层纵向结构复杂；部分区块高、低阻气层和局部出水层并存．低阻气层普遍发育，气层识别难度大。针对上述问题，综合岩心分析资料和测井资料，从毛管理论入手，研究了低阻气层的成因机理，指出“双高（高孔隙度、高微孔率）、双组（渗流孔隙、微孔隙）”孔隙结构特点是苏东地区低阻气层形成的主要原因。同时部分高渗透层泥浆滤液的深侵入降低了气层电阻率。
The Sulige gasfield is a large gas reservoir sandstone lithologic complex, non-homogeneous strong vertical structure of the complex gas-bearing formation; part of the block high, low resistance gas reservoir and the local water-layer co-exist, the general development of low resistance gas reservoir, gas reservoir identification difficult. In response to these problems, a comprehensive core analysis data and logging data, starting from the capillary theory to study the c.auses of low resistance gas formation mechanism, pointing out that ＂double high （high porosity, high pore ratio）, double-group （seepage pore, micro-pore） ＂Soviet Union and Eastern regions of pore structure is characterized by the formation of the main reasons for low resistance gas reservoir, while some of the high permeability layer of mud filtrate invasion reduces the deep gas reservoir resistivity.
关键词
低阻气层
毛管理论
孔隙结构
下限
low-impedance gas formation
capillary theory
pore structure
lower limit
