文203断块沙三中亚段浊流沉积研究

Petroleum Geology & Oilfield Development in Daqing(2008)

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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。
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Key words
regional geology,microfacies,sedimentation environment,sedimentation structure,sedimentation pattern
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