摘要
本文以岩心、测井资料为基础,从岩石学特征、泥岩颜色、粒度特征、层理构造特征等入手,对岔河集油田岔71断块东三段4个油组的沉积微相展布特征做了系统性研究。结果表明:研究区为河控型浅水三角洲沉积体系,是三角洲前缘沉积亚相,发育水下分流河道、水下分流间湾、水下天然堤、远砂坝4种沉积微相。根据不同沉积微相的测井相特征,研究了小层沉积微相平面分布规律,并建立了浅水三角洲模式,研究了其沉积演化特征,为研究区的剩余油挖潜提供了很好的地质依据。
Based on core and well logging data,according to the petrological characteristics,mudstone color,grain size characteristics and bedding structure characteristics,the sedimentary microfacies distribution characteristics of four oil groups in the Ed3 member of the fault block 71 of the Chaheji oilfield are systematically studied in this paper.The results show that the study area is a river-controlled shallow-water delta sedimentary system,which is a delta front sedimentary subfacies.It develops four sedimentary microfacies:underwater distributary channel,underwater diversion bay,underwater natural dike and far sand dam.According to the logging characteristics of different sedimentary microfacies,the distribution law of microfacies in small sedimentary facies is studied,and the shallow water delta model is established.The sedimentary evolution characteristics are studied,which provides a good geological basis for the remaining oil potential in the study area.
作者
张敏
苑国辉
于成杰
封从军
李达明
ZHANG Min;YUAN Guo-hui;YU Cheng-jie;FENG Cong-jun;LI Da-ming(State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University,Xi'an,Shanxi 710069,China;Institute of Geology,Second Oil Production Plant,Huabei Oilfield Company,Hebei,Bazhou,065709)
出处
《内蒙古石油化工》
CAS
2018年第11期119-124,共6页
Inner Mongolia Petrochemical Industry
关键词
沉积微相
沉积演化
沉积模式
岔河集油田
Sedimentary microfacies
Sedimentary evolution
Sedimentary model
Chaheji oilfield
