特种油气藏2018，Vol.25Issue(1)：20-24,5.DOI:10.3969/j.issn.1006-6535.2018.01.005
哈山山前带构造特征及对下步勘探的启示
Structure Properties of Hashan Piedmont Zone and Its Inspiration to the Further Exploration
摘要
Abstract
In order to further evaluate the exploration potential of the Hashan Piedmont zone and identify the favora-ble exploration direction,the structure deformation is analyzed to re-understanding the distribution of source-rock. The configuration between fault,trap space is combined to predict the favorable exploration targets in this area.The developed unconformities in Hashan are identified according to the field geology survey,seismic cross-section structure interpretation and other methods. The structure properties of Hashan piedmont zone are determined based on the deformation analysis of fault-fold and other structures.It is considered that the Hashan piedmont zone can be divided into shallow and deep deformation systems and 4 stages,including Early Permian weak compression,Late Permian-Triassic strong compression,Jurassic-Cretaceous compression depression,Cenozoic strike-slip thrust. Based on the structure properties,the principle of balanced profile is used to restore the original sedimentation rage of Permian Fengcheng Formation according to the drilling and seismic interpretation data,which is 1 000 km2larger than the previous understanding. It is considered that high-quality source-rocks are developed in the Fengcheng Formation according to the geochemical analysis.The key controlling-factors of hydrocarbon accumulation are deter-mined according to the spatial configuration between source-rock,fault and trap,which demonstrates that all kinds of traps chat connect with oil-source faults are characterized as the favorable exploration targets. It is predicted that the favorable trap resources will reach the scale of 100 million tons according to this understanding,which greatly enhances the hydrocarbon exploration potential in this area.关键词
哈山山前带/构造特征/烃源岩/成藏模式/勘探潜力Key words
Hashan piedmont zone/structure properties/source-rock/hydrocarbon accumulation pattern/explora-tion potential分类
能源科技引用本文复制引用
李学良,林会喜,张奎华,张关龙,侯读杰..哈山山前带构造特征及对下步勘探的启示[J].特种油气藏,2018,25(1):20-24,5.基金项目
国家科技重大专项"准噶尔盆地碎屑岩层系大中型油气田形成规律与勘探方向"(2011ZX05002-002) （2011ZX05002-002）
中国石化股份有限公司科技攻关项目"哈山构造带成藏主控因素研究"(P13020) （P13020）
