A STUDY OF MUDSTONE COMPACTION IN THE WEST MARGIN OF SHAANXI-GANSU-NINGXIA BASIN

Chen Heli; Wang Zhenliang

doi:10.11743/ogg19920304

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A STUDY OF MUDSTONE COMPACTION IN THE WEST MARGIN OF SHAANXI-GANSU-NINGXIA BASIN
Vol. 13, Issue 3, Pages: 263-271(1992)
Online First：25 September 1992，

Published：1992
DOI： 10.11743/ogg19920304
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DOI：

Chen Heli, Wang Zhenliang. A STUDY OF MUDSTONE COMPACTION IN THE WEST MARGIN OF SHAANXI-GANSU-NINGXIA BASIN[J]. 1992, 13(3): 263-271. DOI： 10.11743/ogg19920304.

摘要

本文以泥岩压实研究为基础

(1)计算了陕甘宁盆地西缘白垩系剥蚀厚度和原始沉积厚度

并对不同地区和不同断层在白垩纪的活动性进行了比较;(2)根据计算出的流体压力

探讨了研究区过剩压力纵向分布和水平分布的特征;(3)以过剩压力分布为基础

参考地层水矿化度、水型等资料

初步分析了已知油井与水动力条件间的关系。

Abstract

Based on the study of mudstone compaction

1.the erosion and the deposit thickness of the Cretaceous in Shaanxi-Gansu-Ningxia Basin are calculated and the activity for dif-ferent places and different faults in the Cretaceous are contrasted;2.the characteristics of excessive pressure both in vertical and horizontal distribution are discussed according to the fluid pressure calculated;3.the relation between known oil-bearing situation and hy-drodynamic condition were analysed on the basis of excessive pressure distribution and re-ferring to the water salinity and type.