摘要
鄂尔多斯盆地延长组延长组低阻油层大量存在,因此通过对低阻油层的成因分析,提出有效的识别方法,为各油田增产起到一定的作用。主要从低阻油层的构造背景、沉积背景、储层、粘土矿物以及成岩作用方面着手,分析其成因机理。结果表明:构造幅度低、储层物性差、粘土矿物的附加导电性以及其充填方式、压实、溶蚀和胶结作用,引起油层电阻率大幅下降。提出的主要识别方法为交会图计算自然电位。
The low resistance reservoir abounds in Ordos basin. Through analyzing formation causes of low resistance oil layer, the effective recognition method was put forward for oil well stimulation. The formation mechanism of the low resistance oil layer was analyzed from the aspects of tectonic background, sedimentary background, reservoir, clay mineral and diagenesis. The results show that the low structure amplitude, poor reservoir property, additional conductivity of clay minerals and their way of filling and compaction, dissolution and cementation are formation causes of the low resistivity reservoir; common identification method is cross-plot and calculating resistivity
出处
《辽宁化工》
CAS
2015年第9期1150-1151,1154,共3页
Liaoning Chemical Industry
关键词
鄂尔多斯盆地
延长组
低阻油层
成岩作用
Ordos Basin
Yanchang
low resistance reservoir
diagenesis
clay minerals
