摘要
砂砾岩油藏储层结构复杂、非均质性严重,依靠传统的方法难以获得可靠的储层解释,研究砂砾岩油藏井间连通关系对于合理有效开发砂砾岩油藏至关重要。针对砂砾岩油藏的储层特征,对以往井间动态连通模型进行了改进,利用正求法和反求法,将非线性优化问题转化为多元线性回归问题,减少了模型的计算量,并且有效避免了模型的多解性。应用实例证实了改进后模型的准确性和2种求解方法的有效性,利于现场推广,可有效指导砂砾岩油藏的开发决策。
Glutenite reservoir is featured by complex architecture and strong heterogeneity,and reliable reservoir interpretation cannot obtain reliable reservoir interpretation by traditional methods. The identification of interwell connectivity is essential to the development of glutenite reservoir. The previous models of interwell dynamic connectivity are improved by considering the glutenite reservoir characteristics. Positive and inverse solutions are used to convert nonlinear optimization problem to multiple linear regression problem,which effectively reduce computation and avoid the multiple solutions of the model. The model accuracy and effectiveness of two solutions are verified by practical application,and this method can be promoted in field and effectively guide glutenite reservoir development decisions.
出处
《特种油气藏》
CAS
CSCD
北大核心
2015年第3期118-120,157,共3页
Special Oil & Gas Reservoirs
基金
国家科技重大专项"整装油田特高含水期提高水驱采收率技术"(2011ZX05011-002)
长江学者和创新团队发展计划"复杂油藏开发和提高采收率的理论与技术"(IRT1294)
关键词
砂砾岩油藏
井间动态连通性
正求法
反求法
glutenite reservoir
interwell connectivity
positive solution
inverse solution
