目前在世界上已发现近百个盆地基底基岩油气藏,我国在渤海湾盆地的下辽河凹陷、东营凹陷也发现了一批以太古字变质岩、花岗片麻岩为储集岩的油气藏。尽管人们对储层裂缝成因、裂缝物性计算、裂缝在岩石中的分布等已进行了不懈的研究,但普遍将目光盯在由沉积岩构成的圈闭储层中,很少有针对基岩裂缝的研究。变质岩为基岩岩性之一,其油气储集空间主要为裂缝,构造动力是裂缝形成的主要因素。岩石矿物具有记忆能力,它们能够把自身在地质历史过程中所经历的一些动力学特 Nearly a hundred basal beds of basement rocks and reservoirs have been found in the world. A number of Archean metamorphic rocks and granitic gneiss are also found in the Lower Liaohe Sag and Dongying Sag of the Bohai Bay Basin. Tibetan. Although people have made unremitting research on the causes of reservoir fractures, the calculation of fracture properties and the distribution of fractures in rocks, the general attention has been focused on trapped reservoirs consisting of sedimentary rocks, the study. Metamorphic rock is one of bedrock lithology. Its main oil and gas reservoir space is fractures, and tectonic motive force is the main factor of fracture formation. Rock minerals have the ability to remember, they are able to put themselves in the geological history of the experience of some dynamic special