黄河口凹陷明下段浅水三角洲沉积及勘探意义  

SHALLOW-WATER DELTA DEPOSITION AND EXPLORATION SIGNIFICANCE OF LOWER MINGHUAZHEN MEMBER IN HUANGHEKOU SAG

作　　者：余宏忠[1,2] 李建平 彭文绪 林畅松[1] 甄彦琴 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中海石油（中国）有限公司天津分公司,天津300452

出　　处：《大庆石油地质与开发》2009年第2期1-6,共6页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家自然科学重点基金项目（No.40238059）、中国海洋石油总公司综合科研项目资助.

摘　　要：从层序地层学角度进行浅水三角洲成因分析，认为黄河口凹陷明下段浅水三角洲沉积水体深浅变化是控制浅水三角洲砂体展布的主要因素。在总结出浅水三角洲有别于一般三角洲沉积的独特特征并与传统的河流相沉积比较后认为，浅水三角洲沉积体系具备更好的储盖组合关系及优越的成藏条件，可为浅层的油气勘探尤其是岩性油气藏勘探提供更可靠的保障。From the perspective of sequence stratigraphy, this paper analyzes the causes of shallow-water delta and proposes that water body depth change is the major factor that controls extension of shallow-water deltaic sand bodies. Also, this paper summarizes the unique characteristic of shallow-water delta different with common delta deposition and makes comparison with conventional fluvial deposition. In the end, it proposes that deposition system of shallow-water delta has better combination of reservoir and cap rock and superior condition for oil and gas accumulation, which can provide more reliable evidence for oil and gas exploration of shallow reservoirs, especially lithologic reservoirs.

关 键 词：黄河口凹陷 明下段 浅水三角洲 层序地层 岩性油气藏 

分 类 号：TE121[石油与天然气工程—油气勘探]