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异常压力的形成与水热增压、成岩过程中黏土矿物的脱水、构造变动的压缩力、烃类和非烃类气体的大量生成、自生矿物的形成等作用有关。异常高压可促进有机质向油气转化 ,它是油气运移的动力 ,控制油气运移方向、距离。异常高压可改善储层的储集空间和性能 ,还可对油气起封盖作用 ,从而有利于油气藏的保存 ,但在一定条件下也破坏油气藏的形成
The formation of abnormal pressure is related to hydrothermal pressurization, dehydration of clay minerals during diagenesis, compression force of structural changes, massive formation of hydrocarbons and non-hydrocarbon gases, and the formation of authigenic minerals. Abnormal high pressure can promote the conversion of organic matter to oil and gas, which is the driving force of hydrocarbon migration and control the direction and distance of hydrocarbon migration. Abnormally high pressure can improve the reservoir’s reservoir space and performance, and can also act as a capping agent for oil and gas reservoirs, which is beneficial to the preservation of reservoirs but under certain conditions also destroys the formation of reservoirs