中国石油大学学报（自然科学版）2011，Vol.35Issue(4)：103-107,5.DOI:10.3969/j.issn.1673-5005.2011.04.019
油气层爆燃压裂裂缝动态延伸模型
Fracture dynamic extending model for oil formation exploding fracturing
摘要
Abstract
Based on fracture initial loading model of reservoir exploding fracturing, the models including calculation model of starting-crack pressure and stopping-crack pressure, model of exploding gas infiltration, model of fractures extending length and width, and model of exploding gas mass and energy conservation were established. And the models were coupled and solved. The variation of wellbore pressure and fracture geometry were analyzed. The results show that the wellbore pressure and temperature rapidly increase after explosive exploding, and the wellbore pressure causes fracture initiation as well as fracture extension when the pressure reaches formation breakdown pressure. The pressure of exploding gas firstly increases and then decreases to formation pressure under the effect of explosive exploding and gas infiltration. Both of the peak pressure and fracture length decrease with the fracture number increasing, and the fracture width firstly increases and then decreases during the fracture extending. The fewer the fracture number, the bigger the fracture imnriiranin width as well as final width under the same explode loading condition.关键词
油气层爆燃压裂/加载模型/动态延伸模型/裂缝长度/裂缝宽度/裂缝条数Key words
oil formation exploding fracturing/ loading model/ dynamic extending model/ fracture length/ fracture width/ fracture number分类
能源科技引用本文复制引用
陈德春,吴晓东,李海波,吴飞鹏..油气层爆燃压裂裂缝动态延伸模型[J].中国石油大学学报（自然科学版）,2011,35(4):103-107,5.基金项目
国家“211工程”重点建设试验装置项目 （）
中国石油化工股份有限公司项目(P03051) （P03051）
