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当前位置: 首页 > 文章 > 鄂尔多斯盆地姬塬地区长6油层组特征及控制因素 长江大学学报(自科版)农学卷 2019 (10) 1-7+38+133
Position: Home > Articles > The Reservoir Characteristics and Main Control Factors of Chang 6 Reservoir in Jiyuan Area of Ordos Basin Journal of Yangtze University(Natural Science Edition)Agricultural Science Volumn 2019 (10) 1-7+38+133

鄂尔多斯盆地姬塬地区长6油层组特征及控制因素

作  者：
李成;袁京素;刘艳妮;马继业;淡卫东
单  位：
中石油长庆油田分公司第八采油厂;中石油长庆油田分公司勘探开发研究院低渗透油气田勘探开发国家工程实验室
关键词：
孔隙演化;成岩非均质;沉积相;低渗透;储层特征;鄂尔多斯盆地
摘  要：
通过大量岩心观察,结合铸体薄片、扫描电镜和阴极发光等资料分析,在明确姬塬地区长6油层组储层岩石学、孔隙微观结构和物性特征的基础上,分析了该区储层特征的主要控制因素及演化过程。研究发现,姬塬地区长6油层组岩石类型主要为长石砂岩,是以粒间孔和溶孔为主的细喉道低孔-超低渗储层;沉积初期,受物源供给和机械分异作用控制,在不同沉积环境下形成了原始沉积的孔隙非均质,在差异成岩演化过程中经历早期机械压实、黏土矿物和碳酸盐矿物胶结、后期酸性流体注入溶蚀共3个演化阶段,导致储层的成岩非均质,最终在整体低渗透的背景下形成局部相对高孔、高渗储层。
译  名：
The Reservoir Characteristics and Main Control Factors of Chang 6 Reservoir in Jiyuan Area of Ordos Basin
作  者：
Li Cheng;Yuan Jingsu;Liu Yanni;Ma Jiye;Dan Weidong;Research Institute of Exploration and Development,Changqing Oilfield Company,PetroChina;National Engineering Laboratory for Low Permeability Petroleum Exploration and Development;No.8 Oil Production Plant of PetroChina Changqing Oilfield Company;
关键词：
pore evolution;;diagenesis heterogeneity;;sedimentary facies;;low permeability;;reservoir characteristics;;Ordos Basin
摘  要：
On the basis of identifying the features of its petrology,micro-pore structure and physical property,the main control factors and evolution of the reservoir characteristics of Chang 6 Reservoir in Jiyuan Area are analyzed by the observation of the cores,thin sections,SEM and cathodoluminescence data.Study results indicate that Chang 6 Reservoir in Jiyuan Area is mainly arkose with fine throat low porosity,ultra low permeability,mainly including intergranular pore and dissolved pore.The heterogeneity in original porosity is formed by disparate sediment provenance and mechanical differentiation in the initial sedimentation period.During the evolution process of differentiated diagenesis,it experiences 3 evolutional stages,such as the early mechanical compaction,the cementation of clay minerals and carbonate minerals and the dissolution effect,by the heterogeneity of reservoirs is induced.And eventually the partial relatively high porosity and permeability reservoirs are formed on the condition of overall and low permeability.

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