摘要
埕岛地区东营组油藏具有在不同构造位置,含油层段不同,油气藏类型与主控因素也有所差异的特点。本文从地层分布、储层展布以及成藏规律等方面,系统分析了埕岛地区东营Ⅰ+Ⅱ砂组的油气富集规律,明确了油气成藏的主控因素:构造背景控制了油气的横向运移;断层输导控制了油气在优势输导路径上的富集;河道砂体的展布则控制了油气的平面分布,三者的良好匹配关系是东营Ⅰ+Ⅱ砂组油气成藏的关键。因此,寻找有利构造背景下的河道砂体是埕岛地区东营Ⅰ+Ⅱ砂组油气勘探的主要方向,这对下步勘探具有重要的指导意义。
In ChengDao area,the characteristic of reservoirs of Dongying formation is that the oil-bearing series and reservoirs types and controlling factors are different in different structural position.This paper analysis the rules of hydrocarbon enrichment of DongyingⅠ+Ⅱ sand formation by studying on the distribution of formation and reservoir and the hydrocarbon accumulation etc.Then makes clear the controlling factors of hydrocarbon accumulation: the tectonic setting controls the hydrocarbon lateral migration,and the fault translocation controls the hydrocarbon enrichment that in the dominant pathways of migration,and the distribution of channel sand controls the plane distribution of oil and gas.The allocation relation of these three factors is the key of hydrocarbon accumulation of DongyingⅠ+Ⅱ sand formation.So finding the channel sand in favorable tectonic setting is the main direction of exploring oil and gas of DongyingⅠ+Ⅱ sand formation in ChengDao area.This conclusion has guiding significance for the further oil and gas exploration.
出处
《内蒙古石油化工》
CAS
2011年第12期129-131,共3页
Inner Mongolia Petrochemical Industry
关键词
东营Ⅰ+Ⅱ砂组
成藏控制因素
构造背景
断层
河道砂体
DongyingⅠ+Ⅱ sand formation
Controlling factors of hydrocarbon accumulation
Tectonic setting
fault
channel sand
