基于定量成岩作用分析的成岩储集相研究——以老君庙油田古近系M油组为例  

Research of diagenetic reservoir facies based on quantitative analysis of diageneses: taking Paleogene M Formation in Laojunmiao Oilfield as an example

作　　者：王旭影[1,2] 吴胜和[2] 岳大力[2] 姜在兴[1] 喻宸[2] 杨光[2] 陈诚[2] 秦国省 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]中国石油大学(北京)地球科学学院,北京102249

出　　处：《西安石油大学学报（自然科学版）》2015年第6期10-16,6,共7页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技重大专项(编号:2011ZX05009-002)

摘　　要：应用铸体薄片、扫描电镜等岩心分析化验资料,对老君庙油田M油组成岩作用强度进行定量表征,并判断成岩阶段和成岩序列,在此基础上划分出4种成岩储集相,总结了成岩储集相的平面分布样式。结果表明:研究区压实作用以中等压实为主,溶解作用强度弱,胶结作用强度以中—强为主,且以碳酸盐胶结作用为主,碳酸盐胶结作用对本区储层质量起着关键的控制作用;成岩储集相类型包括低杂基、中压实、弱碳酸盐胶结相相对优质储集相(A相),低杂基、弱中压实、中碳酸盐胶结相较有利低渗储集相(B相),低杂基、弱压实、强碳酸盐胶结特低渗-致密储集相(C相),高杂基、中压实、弱碳酸盐胶结低渗-致密储集相(D相)。其中,A相储集性能最好,B相次之,C相和D相最差。Based on core data such as casting thin sections and scanning electron microscope,the diagenesis intensity of M Formation in Laojunmiao Oilfield is quantitatively characterized,the diagenesis stage and the diagenesis sequence of M Formation are judged,M Formation is divided into 4 types of diagenetic reservior facies,and the plane distribution patterns of the diagenetic reservoir facies are summarized. The study result shows that: M Formation in the study area underwent medium compaction; its dissolution is weak; its cementation is medium to strong and is mainly carbonate cementation. Carbonate cementation plays a key control role to the reservoir quality in the study area. Four types of diagenetic reservoir facies include the high quality reservoir facies( facies A),which is of low matrix content,medium compaction and weak carbonate cementation,the relative good reservoir facies( facies B),which is of low matrix content,weak to medium compaction and medium carbonate cementation,the low-permeability tight reservoir facies( facies C),which is of low matrix content,weak compaction and strong carbonate cementation,and the low-permeability tight reservoir facies( facies D),which is of high matrix content,medium compaction and weak carbonate cementation. Among them,facies A is the best reservoir,facies B is secondary,facies C and facies D are the worst reservoir.

关 键 词：成岩作用定量分析 成岩储集相 老君庙油田 M油组 

分 类 号：TE122.2[石油与天然气工程—油气勘探]