摘要
分析异常高压形成机理,认为异常高压形成机理主要与沉积作用、构造作用、烃类生成、流体热膨胀、矿物成岩作用有关,其中以沉积压实作用增压和生烃增压两种机理最为重要,具普遍性。异常高压不仅影响烃类相态和生烃产物,且对烃源岩的成熟度有抑制作用,阻碍有机质的成熟。地层压力超过一定门限时会对成烃产生明显的抑制作用。
Analyzing various mechanisms of forming abnormal high-pressure,the mechanisms have relationship with sedimentary action,structural action,hydrocarbon generation,liquid thermal-expansion and mineral diagenetic change and the sedimentary action and hydrocarbon generation are the most important and universality.Abnormal high-pressure not only controls the generative phases of hydrocarbons but also results in restraining maturity of sourcerock and retarding Maturity of organic matter.When pressure exceeds a certain threshold,it obviously restrains hydrocarbon generation.
出处
《重庆科技学院学报（自然科学版）》
CAS
2010年第4期24-26,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
关键词
异常压力
超压
形成机理
油气生成
abnormal pressure
overpressure
formation mechanism
hydrocarbon generation
