摘要
介绍了利用地球物理测井数据划分含水层,解释含水层岩性、泥质含量、孔隙度和计算地下水矿化度的基本原理与方法。在鄂尔多斯白垩系地下水盆地内,选用436眼时期相近、仪器型号类似、资料质量较高的地球物理测井数据,采用forward软件详细解译了每口单井的曲线特征,重点研究了自然电位(SP)、自然伽玛(GR)、声波(AC)和感应电阻率曲线值的变化规律,建立了测井参数与地质参数之间的转换关系,获得了含水层的岩性、厚度、孔隙度、渗透率、矿化度等水文地质参数。
The theory and methodology on application of geophysical logging data to aquifer division, to the interpretation of lithology, mudstone content and porosity and to TDS calculation are presented in the paper. The selected geophysical data are from 436 petroleum boreholes that was sampled in similar period, was measured using the same equipments and is of high quality. SP, GR, AC and induced receptivity are interpreted using forward, relationship between geophysical property and geological parameters, based on interpreted logging data. According to the relationship, aquifer lithology and thickness, porosity, permeability, TDS can be obtained.
出处
《工程勘察》
CSCD
北大核心
2007年第5期67-72,共6页
Geotechnical Investigation & Surveying
基金
中国国土资源大调查鄂尔多斯盆地地下水勘查计划项目(1212010331302)资助
