孙正贵,钟建华,王勇,鱼宏珍
SUN Zheng-gui1,2,ZHONG Jian-hua1,3

• 1:中国科学院广州地球化学研究所
• 2:胜利油田分公司现河采油厂

摘要(Abstract)：

运用取心井段岩性、粒度、岩石结构、沉积构造、古生物化石组合及测井等资料,研究了文203断块油田沙三中亚段的沉积环境、沉积微相类型及其平面展布特征。结果表明,文203断块沙三中亚段沉积属于半深湖—深湖背景下的浊流沉积,发育有沟道状和扇状两种类型沉积。其中,沟道状浊积岩相可进一步细分为深沟道微相、浅沟道微相、近漫溢微相、远漫溢微相和深湖相,扇状浊积相可细分为辫状主沟道、辫状分支沟道、沟道间、中心微相、外扇微相和深湖相。
Sedimentation environment,microfacies types and plane distribution of sub-middle of the third member of Shahejie Formation in fault block Wen 203 have been studied combining with lithology,grain,rock texture,sedimentary stricture,palaeophyte fossil assemblage and logging data of the cored interval.Results indicate that sedimentation of sub-middle of the third member of Shahejie Formation in fault block Wen 203 belongs to semideep-deep lacustrine turbidite deposits,developing channel and fan sedimentations.The channel turbidite facies could be subdivided into deep channel facies,shallow channel facies,near-flood micorfacies,far-flood microfacies and deep lacustrine facies.The fan turbidite could be subdivided into braid main channel,braid branch channel,inter-channel,center microfacies,outer-fan micorfacies and deep lacustrine facies.

关键词(KeyWords)： 区域地质;沉积构造;沉积环境;沉积模式;微相
regional geology;sedimentation structure;sedimentation environment;sedimentation pattern;microfacies

Abstract:

Keywords:

基金项目(Foundation): 高校博士点基金项目(20010425004)资助

作者(Author): 孙正贵,钟建华,王勇,鱼宏珍
SUN Zheng-gui1,2,ZHONG Jian-hua1,3

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