海月构造带东三段滩坝砂分布及成藏主控因素分析

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英文篇名：Beach bar sand distribution and main controlling factors of hydrocarbon accumulation of Ed_3 in Haiyue structure belt 作者：祁飞 英文作者：QI Fei;Exploration & Development Research Institute of Liaohe Oilfield Company,PetroChina; 关键词：海月构造带 ; 滩坝砂 ; 储层分布 ; 成藏特征 英文关键词：Haiyue structure belt;;beach bar sand;;reservoir distribution;;accumulation characteristics 中文刊名：SYHN 英文刊名：Petroleum Geology and Engineering 机构：中国石油辽河油田分公司勘探开发研究院; 出版日期：2019-01-25 出版单位：石油地质与工程 年：2019 期：v.33 基金：国家科技重大专项“辽河坳陷增储领域地质评价与勘探实践”(2016ZX05006005–002);; 中国石油天然气股份有限公司科技重大专项“辽河油田千万吨稳产关键技术研究与应用”(2017E–16) 语种：中文; 页：SYHN201901005 页数：4 CN：01 ISSN：41-1388/TE 分类号：20-23

摘要

辽河滩海地区海月构造带东三段沉积期,三角洲前缘砂体受湖岸流和波浪的改造,形成了一系列滩坝砂沉积,细分为滩砂和坝砂,水动力强则形成坝砂,水动力弱则形成滩砂;滩坝砂平行于湖岸线呈带状分布,易于形成岩性圈闭。滩坝砂受砂体发育规模、储层物性、断裂输导体系及封堵性等多种因素控制,在滩坝砂较为发育的东三下段,靠近海南断层、盖州滩断层且封堵条件优越的滩坝砂最易于成藏。
        During the sedimentary period of Ed_3 in Haiyue structure belt in Liaohe tidal area, a series of beach bar sand deposits were formed by the transformation of lakeshore flow and wave in the delta leading edge sand body, which were subdivided into beach sand and dam sand. The beach bar sand is distributed in a strip parallel to the shoreline of the lake, which is easy to form lithologic traps. While the beach bar sand is controlled by many factors, such as the development scale of sand body, reservoir physical properties, fault drainage system and sealing property, etc. In the lower Ed_3 where the beach bar sand is relatively developed,the beach bar sand close to Hainan fault and Gezhou beach fault with superior sealing conditions is most likely to form reservoirs.

引文

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