以吐哈油田LS1井为例，介绍了低渗透裂缝性泥砂岩层的试油技术。
Taking well LS1 of Tuha oilfield as example, this paper presents oil testing technology of low permeability fractured shaly sandstone reservoir.
低渗透性的沉积物在快速沉降过程中 ，上覆岩层产生的不均衡压实可产生相当大的超压 ，这是沉积盆地形成高压的主要机制。
Overpressure mechanism is researched from the aspects of compaction disequilibrium, hydrocarbon generation and rock salt sealing according to the geophysical and geochemical data.
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