西泉103井区火山岩储层特征研究  

Reservoir Characteristics of Volcanic Rocks in Xiquan 103 Well Block

作　　者：叶习文 商玉锋 黄嘉林 YE Xi-wen;SHANG Yu-feng;HUANG Jia-lin(School of Petroleum Engineering,Yangtze University,Wuhan Hubei 430000,China)

机构地区：[1]长江大学石油工程学院,湖北武汉430100

出　　处：《辽宁化工》2021年第10期1545-1547,共3页Liaoning Chemical Industry

摘　　要：火山岩油藏具有相对复杂的渗流规律,明确其储层条件下的渗流机理有利于制定合理、有效的开发方案。通过压汞、核磁共振等多个实验,综合描述了西泉地区火山岩的储层物性特征、孔吼结构特征。实验表明:西泉103井区孔隙类型以溶孔为主,其次为气孔,裂缝发育较少,孔隙分布以小孔隙为主,孔隙度高,渗透率低,孔喉特征表现为微-小吼道,束缚水饱和度普遍较高。研究结果对于该区域火山岩油气藏勘探开发有一定指导意义。Volcanic reservoir has a relatively complex seepage law.It is helpful to formulate a reasonable and effective development plan to clarify the seepage mechanism under reservoir conditions.Through mercury injection,nuclear magnetic resonance,start-up pressure,stress sensitivity,relative permeability and other experiments,the reservoir physical properties,pore structure characteristics,seepage mechanism and its influencing factors of volcanic rocks in Xiquan area were comprehensively described.The experimental results show that the main pore type of Xiquan 103 well block is dissolution pore,followed by porosity,with less fracture development.The pore distribution is mainly small pores,with high porosity and low permeability.The pore throat features show micro small throat,generally high irreducible water saturation and start-up pressure,strong stress sensitivity,high permeability damage rate,low reservoir recovery and small two-phase flow range.The research results have certain guiding significance for the development of volcanic reservoirs in this region.

关 键 词：火山岩油藏 储层物性 孔喉结构 压汞实验 核磁共振 

分 类 号：TE312[石油与天然气工程—油气田开发工程]