摘要
高精度层序地层学研究已成为进行油气勘探的重要手段之一。沾化凹陷渤南油田岩性油气藏发育 ,以重点取心井义 3 7 7井为例 ,通过单井相和高精度层序地层格架分析 ,识别出 3种沉积相、7种亚相和 15种微相 ,划分出 4个三级层序、9个体系域和 44个准层序组。准层序单元中沉积微相的不同组合以及岩石物性的差别 ,影响着油气在准层序单元中的分布。就识别出的典型辫状河三角洲准层序组和湖底扇准层序组与油气的关系进行探讨 ,通过分析它们不同的微相组合类型和物性特征 ,认为无论是辫状河三角洲还是湖底扇 ,多期发育的辫状水道砂体都是最有利的油气储集体。图 3表 1参
High resolution sequence stratigraphy has become an important way for oil exploration. The lithological oil gas reservoirs well developed in the Bonan Oil Field of Zhanhua Sag. Taking Well Yi 3 7 7 as an example in the Bonan oil field, by analyzing sedimentary facies and high resolution sequence stratigraphical framework, 3 sedimentary facies, 7 sub facies and 15 microfacies were recognized, and 4 third level sequences, 9 system tracts and 44 para sequence sets were divided. The differences of combination of different micro facies and physical property characteristics affected the oil gas distributions in parasequences. By studying the relationship between oil gas distribution and para sequences of the typical braid delta and underwater fan, and by analyzing the different combination types and physical characteristics, the braid delta, underwater fan and multi developed braided channel are all thought to be the most favorable oil and gas reservoirs.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2003年第3期26-28,共3页
Petroleum Exploration and Development
基金
国家"十五"重大科技攻关项目(2 0 0 1BA60 5A0 9)
中国石油化工股份有限公司"十五"科技攻关项目 (P0 10 13)
关键词
层序地层学
准层序
油气
储集层
渤南油田
sequence stratigraphy
para sequence
oil and gas reservoir
Bonan Oil Field
