靖边气田东北部马五_1亚段主要成岩作用研究  

Study on the main diagenesis of Ma 5_1 submember in northeastern Jingbian Gas Field

作　　者：李世临[1] 雷卞军[2] 张文济[2] 李皋[3] 刘斌[4] 王小蓉[5] 

机构地区：[1]中国石油西南油气田分公司重庆气矿 [2]西南石油大学 [3]西南石油大学"油气藏地质及开发工程"国家重点实验室 [4]中国石油吉林油田勘探开发研究院天然气所 [5]西南油气田分公司川中油气矿

出　　处：《岩性油气藏》2009年第1期22-26,共5页Lithologic Reservoirs

摘　　要：鄂尔多斯盆地靖边气田东北部奥陶系马五1亚段储层在风化壳顶部,由于遭受长达130Ma的风化剥蚀,其经历的成岩作用很复杂。岩心与薄片分析表明,该研究区的表生岩溶作用、埋藏溶解作用和矿物充填作用对马五1亚段白云岩储集层形成的影响较大。该区主力产气层马五13小层的成岩有利区在中—中南部及西部。The Ordovician Ma 51 reservoir in northeastern Jingbian Gas Field in Ordos Basin is at the top of weathering crust. The diagenesis is complex because of weathering and denudation in about 130 Ma. Based on the analysis of core and thin slice, it is concluded that the forming of Ma 51 dolomite reservoir is dominated by hypergene karstification, burial dissolution and mineral filling. The favorable diagenesis zones of Ma 51 reservoir are mainly in the midst-central south and west of the study area.

关 键 词：成岩作用 岩溶作用 充填作用 奥陶系 靖边气田 

分 类 号：TE122.23[石油与天然气工程—油气勘探]