大庆石油地质与开发2017，Vol.36Issue(5)：41-46,6.DOI:10.3969/J.ISSN.1000-3754.201611071
冀中坳陷Y9井区奥陶系潜山储层特征及控制因素
RESERVOIR CHARACTERISTICS AND CONTROLLING FACTORS FOR ORDOVICIAN BURIED-HILL IN WELL BLOCK Y9 OF JIZHONG DEPRESSION
摘要
Abstract
In order to make certain of the further exploration and development of Ordovician buried-hill in Well Block Y9,by means of the cores observation,rock thin section identification,physical property analyses and so on,combined with the well logging and seismic interpretation results,the reservoir characteristics and controlling factors of this block were researched.The achievements show that the main reservoir lithologies are limestone,the dolomite rocks were less,the physical properties are rather poorer,the reservoir accumulating space is mainly the secondary interquartz pores,intragranular and intergranular dissolved pores,and moreover the structural fractures,structural-dissolved fractures and vugs are also developed,the reservoir types are shown as follows:low-porosity and low-permeability fracture-pore and pore-fracture ones;the controlling factors include the sedimentation,diagenesis,karstification and tectonization,the reservoir are mostly developed in the microfacieses of the limestone-dolomite flat and dolomite flat,the dolomitization and dissolution can greatly improve the last physical properties of the reservoirs,the karstifications are greatly developed in the upper of Ordovician buried-hill and around the fault belts,thus the high-quality reservoirs are always developed there,the tectonization can generate the structural fractures,so the communication and infiltration abilities of the reservoirs can be improved a great deal.关键词
冀中坳陷/奥陶系/潜山/储层特征/控制因素Key words
Jizhong Depression/Ordovician/buried-hill/reservoir characteristic/controlling factor分类
能源科技引用本文复制引用
薛辉,窦连彬,吕亚辉,郭朝志,肖博雅,彭志琴..冀中坳陷Y9井区奥陶系潜山储层特征及控制因素[J].大庆石油地质与开发,2017,36(5):41-46,6.基金项目
中国石油天然气股份有限公司重大科技专项“华北油田上产稳产800万吨关键技术研究与应用”(2014E-35). （2014E-35）
