特种油气藏2017，Vol.24Issue(4)：32-37,6.DOI:10.3969/j.issn.1006-6535.2017.04.006
昆北地区厚层砂砾岩储层质量主控因素及"甜点"识别
Dominant Controlling Factors of Reservoir Quality and"Sweet Spot"Identification for Thick Glutenite Reservoirs in Kunbei District
摘要
Abstract
During the sedimentary period of lower Ganchaigou formation in Tertiary system,Qie12 block,Kunbei oil field,glutenite reservoir was thick and the multiple periods of sand body were superposed with each other,with extremely strong heterogeneity. The unclear understanding of dominant controlling factors of reservoir quality leads to poor reservoir depletion and production results. Based on core observation,thin section analysis,mercury injection analysis,nuclear magnetic resonance and physical properties,the reservoir characteristics and dominant controlling factors of reservoir quality for thick block glutenite are analyzed in terms of petrology,physical properties and pore structure and identification standard is built for glutenite"sweet spot"reservoir in Qie12 block. The research shows that reservoir quality of lower Ganchaigou formation in Tertiary system in Qie12 block is affected by dominant con-trolling factors including sorting features of rock particles,volume fraction of mud and diagenesis. Identification standard for"sweet spot"reservoirs is built according to lithology,physical performance index,displacement pres-sure and daily liquid productivity. Reservoir development adjustment measures are proposed including searching for"sweet spot"reservoirs in oil wells for reperforation and"sweet spot"water breakthrough zones in injection wells for water plugging and profile control,in order to provide strong technical support for improved oil recovery in thick block glutenite reservoirs. This investigation method is applicable to research on dominant controlling factors of res-ervoir quality in other types of reservoirs.关键词
砂砾岩/储层质量/主控因素/"甜点"储层/开发调整/昆北油田Key words
glutenite/reservoir quality/dominant controlling factor/"sweet spot"reservoir/development adjust-ment/Kunbei oil field分类
能源科技引用本文复制引用
惠钢,王友净,谢琳,肖茂,袁东..昆北地区厚层砂砾岩储层质量主控因素及"甜点"识别[J].特种油气藏,2017,24(4):32-37,6.基金项目
中国石油科技重大专项"低/超低渗透油田有效开发关键技术研究"(2016B-1201) （2016B-1201）
