-
摘要: 受济阳坳陷古近系中深部储层出现异常低压的启示,讨论了成岩过程中主要矿物蚀变的“耗水”问题,并从理论上计算了这种蚀变的耗水量。初步研究表明,成岩过程中矿物蚀变的“耗水作用”可使地层水大量减少,在没有外部流体补充的情况下,相应地层必然呈低压状态,并与围岩形成一定的压力差,易于烃类进入成藏。Abstract: Inspired from anomaly low pressure in the middle and deep reservoir of Peleogene in Ji Yang Depression, "water consumption" of main mineral alteration during diagenetic stage is discussed theoretically. Preliminary research result shows that "water consumption" of mineral alteration in diagenetic stage can make formation water greatly decrease. Relevant formation must be in the stage of low pressure without supply of exterior liquid. Pressure differences between relevant formation and wall rock make hydrocarbons emplace easily to form the effective reservoir.
-
Key words:
- diagenetic function /
- "water consumption" function /
- alteration /
- feldspar and kaolinite /
-

计量
- 文章访问数: 1606
- HTML全文浏览量: 21
- PDF下载量: 747
- 被引次数: 0