川西坳陷什邡-德阳-广金地区蓬莱镇组致密储层成岩相表征  

Study on Tight Reservoir Diagenetic Facies of Penglaizhen Formation in Shifang-Deyang-Guangjin Area of Western Sichuan Forland

作　　者：陈佩佩[1] 胡望水[1] 周钱山 李相明[1] 黄鑫[1] 

机构地区：[1]长江大学油气资源与勘探技术教育部重点实验室,地球科学学院,武汉430100

出　　处：《科学技术与工程》2014年第23期174-178,187,共6页Science Technology and Engineering

基　　金：国家自然科学基金项目(40872099)资助

摘　　要：利用铸体薄片、扫描电镜、岩心观察等资料,对川西坳陷蓬莱镇组储层成岩相类型进行划分,建立成岩相测井识别标准,研究区蓬莱镇组成岩相展布、不同成岩相物性、成岩相主控因素。结果表明,将研究区储层划分为溶蚀孔隙成岩相、斑状溶蚀孔隙成岩相、致密胶结成岩相和致密压实成岩相四种成岩相类型;选取深浅侧向、自然伽马、声波时差、密度和补偿中子6条测井曲线,建立了四种成岩相的测井识别标准。以MJ102井为例实现成岩相的剖面划分;并以蓬三段三砂组的成岩相平面展布与沉积相图对比研究。揭示成岩相的分布主要受沉积环境控制;且溶蚀孔隙成岩相和斑状溶蚀孔隙成岩相物性最好,主要发育在分流河道微相中。[ Abstract] Based on data of cast-slice, SEM analysis and core analysis data, the types of Penglaizhen Formation in western Sichuan Foreland were distinguished, logging cure features was discussed, lateral distributions was examined, porosity and permeability, main controlling facies. roded diagenetic facies of of diagenetic facies factors of diagenetic The results demonstrate that the reservoirs can be divided into four types of diagenetic facies, including porosity diagenetic facies, cemente tight diagenetic facies corandroded porosity diagenetic facies, porphyriti compacte tight diagenetic facies. LLS,LLD ards of diagenetic facies were used. MJ102 c corroded porosity diagenetic facies, cemente tight diagenetic facies and ,CNL,DEN,AC and GR logging cures build logging identification standwas used as an example in order to study the distribution of facies, the sedimentary facies and lateral distribution of diagenetic diagenetic facies of the third sand group of third Penglaizhen Formation were compared. The results demonstrate that the distribution of diagenetic facies is mainly controlled by sedimentary environment, the best porosity and permeability are developed in corroded porosity diagenetic facies and oorohyritic corroded oorositv diagenetic facies of channel.

关 键 词：什邡一德阳一广金地区 蓬莱镇组 致密储层 成岩作用 成岩相 测井 

分 类 号：TE122.2[石油与天然气工程—油气勘探]