现在对基底作为油气开采目标的兴趣日益增长；然而，用以普查、勘探和开发沉积盖层立油气田的方法对于基岩油气藏大多常常无效。新方法的精心拟订需要解决包括基岩中储集岩成因等一系列问题。现已发表的资料表明，花岗岩类在一些因素作用下会成为储集岩；自交代作用、收缩作用 There is growing interest now in the basement as a target for oil and gas exploration; however, the methods used to census, explore and develop the caprock-capped gas fields are mostly ineffective for bedrock reservoirs. The elaboration of new methods needs to be addressed in a series of issues, including the genesis of reservoir rocks in bedrock. The published data show that the granites can become reservoir rocks under the influence of some factors; self-generation and contraction