中南大学学报（自然科学版）Issue(5)：1754-1762,9.DOI:10.11817/j.issn.1672-7207.2015.05.025
南海西北部晚中新世红河海底扇储集层特征
Reservoir characteristics of Late Miocene Red River submarine fan, northwestern South China Sea
摘要
Abstract
The grain size analysis, casting thin section, reservoir properties analysis, scanning electron microscope and other technologies were applied to analyze the petrology characteristics, diagenesis, pore structure and reservoir properties evolution of distant source Red River submarine fan reservoir, and the reservoir properties of submarine fan and generation mechanism were researched. The results show that the main lithofacies of Red River submarine fan are composed of mid-fan channel sandstone brought by debris flow, the lower fan channel sandstone brought by turbidity current and terminal lobe sandstone. The reservoir is characterized by relatively high porosity and low permeability. The typical characteristic has medium porosity and extra-low permeability. The pore type is mainly intergranular dissolution with enlargement. The pore throat is generally thin with medium sorted. Thin tight calcareous sandstone is developed within the main sandstone. The good quality reservoir is developed at the terminal lobe of lower fan in submarine fanfront, and the lithofacies has thick lithic quartz fine sandstone and middle-grained sandstone. The relatively high porosity is due to the gravity flow sandstone from distant source which contains good particle skeleton with low clay content. The early carbonate cements can extensively develop and form strong dissolution. The low permeability is due to wide development of chlorite cements at late stage, which blocks the pore throat.关键词
孔隙结构/物性/成岩作用/重力流/深水扇/南海北部Key words
pore structure/reservoir properties/diagenesis/gravity flow/deep-water fan/northern South China Sea分类
能源科技引用本文复制引用
郑胜,吕成福,陈国俊,张功成,梁建设,李超,张义娜,徐勇..南海西北部晚中新世红河海底扇储集层特征[J].中南大学学报（自然科学版）,2015,(5):1754-1762,9.基金项目
国家重大科技专项(2011ZX05025-006)；甘肃省重点实验专项基金资助项目(1309RTSA041)@@@@(Project(2011ZX05025-006) supported by Major Program of National Science and Technology （2011ZX05025-006）
Project(1309RTSA041) supported by the Key Laboratory Program of Gansu Province) （1309RTSA041）
