冀中坳陷Y9井区奥陶系潜山储层特征及控制因素
发布时间：2018-10-19 09:18
【摘要】：为明确Y9井区奥陶系潜山下一步勘探开发方向,利用岩心观察、薄片鉴定、物性数据分析等技术方法,结合测井、地震等解释成果,对冀中坳陷Y9井区奥陶系潜山储层特征及控制因素进行研究。结果表明:Y9井区奥陶系潜山储层岩性主要为灰岩,其次为白云岩,储层物性较差,储集空间以次生成因的晶间孔、粒间(内)溶孔为主,且发育构造缝、构造—溶蚀缝和溶洞,属低孔、低渗的裂缝—孔隙型、孔隙—裂缝型储层;储层发育受沉积、成岩、岩溶、构造等4个方面作用影响,灰云坪、云坪微相中储层最发育,白云石化、溶蚀作用大大改善了储层的最终物性,奥陶系潜山顶部和断层发育带附近岩溶作用发育,多形成优质储层,构造作用产生构造裂缝,改善了储层渗滤能力。
[Abstract]:In order to make clear the next exploration and development direction of Ordovician buried hill in Y9 well area, using core observation, thin slice identification, physical property data analysis and other technical methods, combined with well logging, seismic interpretation and other results, The reservoir characteristics and controlling factors of Ordovician buried hill in Y9 well area of Jizhong depression are studied. The results show that the lithology of Ordovician buried hill reservoir in Y9 well area is mainly limestone, followed by dolomite, the reservoir physical property is poor, the reservoir space is mainly composed of intergranular pores and intergranular (internal) dissolved pores, and structural fractures, structure-corrosion fractures and caverns are developed. The reservoir development is affected by sedimentation, diagenesis, karstification and structure. The reservoir is the most developed in Liyunping and Yunping microfacies, and dolomitization, The dissolution greatly improves the ultimate physical properties of the reservoir. The karst process develops at the top of the Ordovician buried hill and near the developed fault zone, and the high quality reservoir is formed, the tectonic process produces structural fractures and improves the percolation ability of the reservoir.
【作者单位】： 中国石油华北油田公司地球物理勘探研究院;
【基金】：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)
【分类号】：P618.13
，
本文编号：2280725
[Abstract]:In order to make clear the next exploration and development direction of Ordovician buried hill in Y9 well area, using core observation, thin slice identification, physical property data analysis and other technical methods, combined with well logging, seismic interpretation and other results, The reservoir characteristics and controlling factors of Ordovician buried hill in Y9 well area of Jizhong depression are studied. The results show that the lithology of Ordovician buried hill reservoir in Y9 well area is mainly limestone, followed by dolomite, the reservoir physical property is poor, the reservoir space is mainly composed of intergranular pores and intergranular (internal) dissolved pores, and structural fractures, structure-corrosion fractures and caverns are developed. The reservoir development is affected by sedimentation, diagenesis, karstification and structure. The reservoir is the most developed in Liyunping and Yunping microfacies, and dolomitization, The dissolution greatly improves the ultimate physical properties of the reservoir. The karst process develops at the top of the Ordovician buried hill and near the developed fault zone, and the high quality reservoir is formed, the tectonic process produces structural fractures and improves the percolation ability of the reservoir.
【作者单位】： 中国石油华北油田公司地球物理勘探研究院;
【基金】：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)
【分类号】：P618.13
，
本文编号：2280725
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