摘要
文章是在"满凹含油"理论的指导下及对孔南孔二段沉积演化背景重新认识的前提下,并对目前已勘探的孔二段自生自储型油气藏的分布规律进行总结的基础上,提出岩性油气藏的潜力方向。孔南地区一隆两凹的构造格局决定了岩性油气藏的发育规律。在对孔南地区孔二段沉积演化背景、沉积相分析及烃源岩分布的基础上,预测湖盆内部孔二段沉积时期发育的坳陷型盆缘辫状河三角洲沉积体系是岩性油气藏的有利相带,具备形成大中型自生自储岩性油气藏的基本条件,是增储上产的重要区带。
The potential area for lithologic reservoir is pointed out on the basis of the instruction of sag-wide oil-bearing theory,the re-establishment of sedimentary evolution in member 2 of Kongdian formation and summing-up the rule of the distribution of self-generation and self-storage oil and gas reservoir in member 2 of Kongdian formation which has been explorated at present.The structure pattern of Kongnan area which contains one uplift and two sags determines the rule of the distribution of lithologic reservoir.Based on the comprehensive analysis of sedimentary evolution,sedimentary facies and distribution of hydrocarbon source rock,it predicts that the depression-type basin margin braided river delta sedimentary system which developed at the member 2 of Kongdian formation in the internal of lake basin is favorable facies belt for the development of lithologic reservoir.This favorable facies belt has the basic requirements for forming the large and middle scale self-generation and self-storage lithologic reservoir,and is the important zone which can increase reserve and production.
出处
《新疆石油天然气》
CAS
2009年第2期28-32,共5页
Xinjiang Oil & Gas
关键词
岩性油气藏
烃源岩
三角洲
孔二段
lithologic reservoir
hydrocarbon source rock
delta
member 2 of kongdian formation
