西安石油大学学报（自然科学版）2012，Vol.27Issue(1)：42-46,5.
大45超低渗透油藏非线性渗流数值模拟
摘要
Abstract
The nonlinear seepage in Da45 super-low permeability reservoir is simulated using newly developed software for evaluating the well pattern adaptability of nonlinear seepage reservoirs. Six well pattern water injection timing projects were designed for identify the effect of different water injection conversion timings on reservoir development result. And the optimum well pattern water injection timing was obtained. The study shows that,the nonlinear seepage numerical simulation software is suitable to super-permeability reservoirs; present 500 m x 100 m rhombic inverted nine-spot well pattern of Da45 super-low permeability reservoir has low producing degree , so it is needed to improve the reservoir producing degree by water injection; the earlier water injection conversion, the higher recovery factor;the optimum water injection conversion timing is at 60% water cut;well pattern water injection can increase the reservoir pressure gradient and seepage region, and therefore improve the reservoir development result; nonlinear seepage plays a dominant role in the exploitation of super-low permeability reservoir, so the reservoir numerical simulation software based on nonlinear seepage law can accurately predict the development characteristics of super-low permeability reservoirs.关键词
超低渗透油藏/非线性渗流/油藏数值模拟/井网适应性/注水时机Key words
super-low permeability reservoir/nonlinear seepage/reservoir numerical simulation/well pattern adaptability/water injection timing分类
能源科技引用本文复制引用
于荣泽,卞亚南,周舒,吕琦,陈朝辉,王楷军,张晓亮..大45超低渗透油藏非线性渗流数值模拟[J].西安石油大学学报（自然科学版）,2012,27(1):42-46,5.基金项目
国家重大科技专项"特低渗透油藏有效补充能量开发技术"(编号:2008ZX05000-013-02) （编号:2008ZX05000-013-02）
国家自然科学基金"低渗透气藏储层特征及流体运动渗流机理研究"(编号:10672187) （编号:10672187）
