西南石油大学学报（自然科学版）2017，Vol.39Issue(2)：125-131,7.DOI:10.11885/j.issn.1674-5086.2015.11.23.03
致密油藏水平井分段压裂CO2吞吐实验研究
Experiments of CO2 Huff-n-puff Process in Staged Fracturing Horizontal Wells for Developing Tight Oil Reservoirs
摘要
Abstract
Using large physical simulation equipment and outcrop plate model,an experimental study on CO2 huff-n-puff in staged fracturing of horizontal wells was carried out.The experiment results show that CO2 huff-n-puffcan effectively improve oil recovery of tight oil reservoir.In addition,the injection pressure is an important factor affecting CO2 huff-n-puff effect.By analyzing pressures at different model locations,production and other key parameters,we clearly define the stratigraphic energy supplement features of CO2 huff-n-puff.The result of the research has great significance in the effective development of tight oil reservoirs.关键词
分段压裂水平井/大型物理模拟/CO2吞吐/注入压力/补充地层能量Key words
staged fracturing horizontal wells/large physical simulation/CO2 huff-n-puff/injection pressure/stratigraphic energy supplement分类
能源科技引用本文复制引用
周拓,刘学伟,王艳丽,秦春光,盖长城..致密油藏水平井分段压裂CO2吞吐实验研究[J].西南石油大学学报（自然科学版）,2017,39(2):125-131,7.基金项目
国家油气重大专项(2011ZX05013-006) （2011ZX05013-006）
中国石油天然气集团公司重大基础攻关课题(2014B-1203) （2014B-1203）
