海洋地质前沿2016，Vol.32Issue(9)：32-40,9.DOI:10.16028/j.1009-2722.2016.09005
西湖凹陷花港组低渗透砂岩储层孔隙结构
STUDY ON THE PORE STRUCTURE OF LOW PERMEABILITY RESERVOIR OF THE HUAGANG FORMATION IN XIHU DEPRESSION AREA
摘要
Abstract
In order to make clear the relationship between the porosity and the production capacity of the low permeability sandstone reservoir in Huagang Formation of the Xihu Depression,pore structures are studied.More than 500 cores data and 311 conventional mercury testing data are used.By the correlation analysis between the characteristic parameters of microscopic pore structure and macroscopic physical properties,choosing the maximum connected pore-throat radius and average connectivity of pore-throat radius as the favorable parameters for throat grading and using the method of data configuration,the paper determined the pore structure classification standards and established the new classification system that suitable for low permeability gas reservoir in this area.The pore structure of Huagang Formation H3 sandstone reservoir could be divided into six types including big-mid pore with coarse throat type,mid-small pore with mid throat type,mid-small pore with mid-fine throat type,small pore with fine throat type,small-fine pore with micro-fine throat type and fine pore with micro throat type.According to the classification of pore structure,the reservoir could be grouped into four types with the production capacity corresponding to high,middle,low,and ultra-low yield respectively.The first kind of reservoir corresponding to the big-mid pore with coarse throat type and the midsmall pore with mid throat type,of which porosity and permeability were higher as well as the capacity of yield,is the most favored reservoir.关键词
西湖凹陷/低渗透/储层特征/微观孔隙结构/分类评价Key words
Xihu Depression/low permeability/reservoir characteristics/microscopic pore structure/classified evaluation分类
能源科技引用本文复制引用
鞠传学,董春梅,张宪国,董翼新..西湖凹陷花港组低渗透砂岩储层孔隙结构[J].海洋地质前沿,2016,32(9):32-40,9.基金项目
国家科技重大专项课题“复杂油气藏精细表征及剩余油分布预测”(2011ZX05009-003) （2011ZX05009-003）
