摘要
以鄂尔多斯盆地华庆地区长6致密砂岩储层为例,研究了影响致密砂岩储层微裂缝发育程度的复杂微观地质因素。应用灰关联分析法,揭示了微裂缝发育程度与各影响因素的关系。结果表明,灰关联分析法可应用于致密砂岩储层微裂缝成因研究,确定影响致密砂岩储层微裂缝发育程度的主要微观地质因素及其影响程度,与实测结果较吻合,为建立微裂缝发育程度表征参数体系提供了理论依据。
This study focuses on complex microscopic geological factors that influence development degree of micro cracks in tight- sandstone reservoirs. Taking Chang 6 tight sandstone reservoir of the Huaqing area in Ordos Basin as an example,we reveal the relationship between the development of micro cracks and various influencing factors using the method of grey association. The results show that this approach is applicable for such issues,which allows us to determine the major micro geologic factors that influence crack development and its degrees. They fairly coincide with the real measurements,and provide a theoretical basis for characterizing the micro cracks in the target reservoirs.
出处
《地质与勘探》
CAS
CSCD
北大核心
2016年第5期950-955,共6页
Geology and Exploration
基金
国家科技重大专项大型油气田及煤层气开发(2011ZX05044)
陕西省科技统筹创新工程计划项目(2015KTCL01-09)
陕西省教育厅重点科学研究计划(15JS087)联合资助
关键词
华庆地区
长6储层
微裂缝
影响因素
灰关联
Huaqing region
Chang 6 reservoir
micro cracks
influencing factors
grey association
