作　　者： ; ; ; ;

机构地区： 中国科学技术大学工程科学学院近代力学系

出　　处： 《油气井测试》 2009年第6期1-5,共5页

摘　　要： 对斜井压力响应采用瞬时源函数Newman乘积法进行研究,提出了新的斜井压力实用计算方法,解决了复杂边界情况斜井压力响应问题。这种方法在无限大平板油藏条件下与现有方法计算结果一致,复杂边界情况计算结果能正确反映边界特征,而且计算量与无限大平板油藏情况类似,对于不同边界的处理也不复杂。同时利用该方法通过实例讨论了倾角较小斜井使用直井模型处理造成的解释结果偏差问题。 This paper provides a new efficient algorithm for computing transient pressure responses in inclined wells based on source function and Newman method which can be used in inclined wells with complex boundaries.The results calculated by using this method for inclined wells in the reservoir with infinite lateral extension and impermeable top and bottom boundaries agree with existed solutions and the characteristics of a real inclined well in a reservoir with complex boundaries are exactly reflected,and the computing efficiency is similar to that in infinite lateral extension case.The computing process is not complicated when taking different boundary conditions into account.Field example is presented,and discussion on error occurred in calculating inclined wells by vertical well model is also included.

关 键 词： 斜井 压力响应 复杂边界 源函数 乘积法

领　　域： [石油与天然气工程] [自动化与计算机技术] [自动化与计算机技术]