论文部分内容阅读
本文提出了隔板型气藏物质平衡方程稳健且严格的数值解。该方法是基于物质平衡方程的积分形式,并使用了隐式迭代的解决方法。所提出的方法能够使单一气藏传统的p/z分析扩展到复杂的隔板型气藏。 隔板型气藏衰竭实例的计算结果说明了隔板间窜流、油藏规模及衰竭速度如何影响p/z。通过对隔板型气藏以恒定速度形成半稳态衰竭的观测,可以合理地处理衰竭特性。给出了一个矿场实例,用以说明扩展的物质平衡方程分析隔板型气藏开采动态的可能性。
This paper presents a robust and rigorous numerical solution to the material balance equation of a clapboard gas reservoir. The method is based on the integral form of the material balance equation and uses an implicit iterative solution. The proposed method enables the traditional p / z analysis of a single gas reservoir to be extended to complex baffled gas reservoirs. The calculated results from the failure of the diaphragm-type gas reservoirs illustrate how the cross-flow between separators, reservoir size and failure rate affect the p / z. The failure characteristics can be reasonably dealt with by observing the formation of semi-steady-state depletion at a constant velocity for the clapboard gas reservoir. An example of a mine is given to illustrate the possibility of analyzing the dynamics of bulkhead gas reservoirs with an extended mass balance equation.