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高压和异常高压是准噶尔盆地腹部勘探及钻采试油面临的重要问题。马桥凸起盆参２井、盆４并均发现深层异常高压，其封闭层顶部埋深４４８５ｍ，封闭层以下为异常超高压，盆参２井在封闭层上下１３００ｍ的井段有油气垂向运移和混源特征。这种高压和异常高压对盆地腹部的油气生成和聚集有明显控制作用。本文应用“流体封存箱”理论探讨异常高压环境中的油气成藏模式。
High pressure and abnormal high pressure are important problems in the exploration of the abdomen of the Junggar basin and drilling oiling test. Maqiao bump basin reference 2 wells, basin 4 and found that the abnormal deep pressure, the top of the sealing layer buried 4485m, the sealing layer is below the abnormal pressure, pots Sen 2 wells in the sealing layer 1300m above the vertical wells have vertical and vertical Migration and mixed source features. This high pressure and abnormal high pressure have a significant control on hydrocarbon generation and accumulation in the belly of the basin. In this paper, the theory of “fluid containment tank” is used to explore hydrocarbon accumulation modes in abnormally high pressure environment.