XX区块下古生界储层特征研究  

Research on reservoir characteristics of Lower Paleozoic in XX block

作　　者：张新新 Zhang Xinxin(Exploration and Development Research Institute of Huabei Branch,SINOPEC,Zhengzhou 450006)

机构地区：[1]中国石油化工股份有限公司华北油气分公司勘探开发研究院,河南郑州450006

出　　处：《石化技术》2020年第7期111-112,118,共3页Petrochemical Industry Technology

基　　金：效益建产工程“下古生界岩溶储层评价及效益建产技术研究”。

摘　　要：基于对XX地区下古生界野外剖面的踏勘实测及样品采集,综合应用野外露头、岩心照片观察、稀土元素、微量元素分析、压汞、铸体薄片鉴定等多项分析测试,对区内的主要地层发育出露情况、沉积相类型与展布特征、古地貌形态、古构造隆起等进行研究,分析了储层的岩石学特征、储集空间特征以及成岩作用特征等,并对储层进行了综合性的评价,最后综合研究认为储层的孔喉结构是以原生孔隙为基础,经后期复杂的成岩作用及多期构造叠加改造而成的;先期的溶蚀是受岩石组构控制的选择性溶蚀,而后期构造运动产生的缝隙是溶蚀性储层发育的关键因素。Based on the field survey and sample collection of the Lower Palaeozoic section in Fuxian area,the field outcrop,core photograph observation,rare earth elements,micronutrient analysis,mercury intrusion,cast thin section identification and other analytical tests were comprehensively applied,the outcrops of main strata,the types and distribution of sedimentary facies,the morphology of Palaeogeomorphology and the uplift of Palaeostructure are studied,and the petrological characteristics,reservoir space characteristics and diagenetic characteristics of reservoirs are analyzed,finally,the pore-throat structure of the reservoir is considered to be based on the primary pores and formed by complex diagenesis and multi-stage structural superimposition The pre-dissolution is the selective dissolution controlled by the rock fabric,and the fractures produced by the later tectonic movement are the key factors for the development of the dissolution reservoir.

关 键 词：XX区块 下古生界 碳酸盐岩储层 岩石组构 溶蚀 

分 类 号：P618.13[天文地球—矿床学]