地质科技情报2018，Vol.37Issue(1)：128-134,7.DOI:10.19509/j.cnki.dzkq.2018.0117
南堡凹陷物源体系发育特征与优质储层形成
Characteristics of Distribution of Provenance System and Formation of the High Quality Reservoir in Nanpu Sag
摘要
Abstract
Based on the research of rock composition,mineral components and heavy mineral assemblages,we divide the provenance system into five areas on the plane of Nanpu Sag.The provenance might come from southwest,south,northwest,northeast and east.According to the comparison of the distribution of porosity and permeability,we find that the physical properties of reservoirs in the area of the southwest provenance system are the best,in which the pore structure mainly consists of medium-high porosity,medium-high permeability,with an average prosity of 19.26％ and average permeability of 205.75 × 10-3 μm2.The second area in the physical characteristics is the south provenance system,having medium-low porosity and medium-high permeability,with an average prosity of 13.59％ and average permeability of 123.44× 10-3 μm2.The evolutionary sequence of diagenesis in the sag is discussed by the homogeneity temperature of fluid inclusion and thin section observation in the reservoir.In addition,the diagenetic system is divided into six categories,with the best property ones being the Es1 in south provenance system and Ed3-Es3 in southwest provenance system.These analyses lead to the conclusion that some relation should exist between the formation of diagenetic system and the provenance system.The study suggests that the provenance system with good sorting and few matrix content is difficult to be compacted,and has good conservation of reservoir space and reforming the reservoir physical property.So this is a favorable reservoir area to form high quality reservoirs in the later diagenesis.关键词
南堡凹陷/物源体系/碎屑矿物/重矿物/储层物性/成岩体系Key words
Nanpu Sag/provenance system/detrital mineral/heavy mineral/reservoir physical property/diagenetic system分类
天文与地球科学引用本文复制引用
赵迎冬,张永超,王全利,王建伟,刁帆,杜景霞,周贺..南堡凹陷物源体系发育特征与优质储层形成[J].地质科技情报,2018,37(1):128-134,7.基金项目
国家科技重大专项“南堡凹陷油气富集规律与增储领域”(2016ZX05006-006) （2016ZX05006-006）
