Production simulation for overpressure gas wells
首发时间:2010-05-27
Abstract:In this paper, the simulation models of constant-volume closed overpressure gas reservoirs and water drive overpressure gas reservoirs were constructed basing on the pressure drop equations and the productivity equations, according to the features of overpressure gas wells and reservoirs. With these models, the pressure distributions of static fluid and flowing fluid in borehole were calculated respectively. The pressure distribution in borehole and formation of overpressure gas wells was simulated with computer and mathematical model techniques, through which the distortion and the variation process with pressure drop of reservoir rocks and overpressure gas well pressure, temperature, outflow, flow pattern etc. were both vividly described. The software, \"Production Simulation System for Overpressure Gas Wells\", was designed, which laid a foundation of the optimal control for single overpressure gas well and offered a more efficient method for the description of the production performance of overpressure gas reservoirs.
keywords: overpressure gas wells gas reservoirs pressure distribution production performance simulation
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异常高压气井生产仿真研究
摘要:根据异常高压气井及气藏的特征,基于异常高压气藏压降方程及产能方程,建立了异常高压定容封闭气藏仿真模型和异常高压水驱气藏仿真模型,并分别计算了异常高压气井井筒静止流体压力分布及井筒流动流体压力分布。利用计算机仿真技术及数学模拟技术,对异常高压气井井筒压力分布及地层流体压力分布进行仿真模拟,形象地描述了随地层压力的下降异常高压气井压力、温度、流量、流态等变化过程及储集层岩石变形过程,开发了\"异常高压气井生产仿真\"软件系统,该系统为异常高压气井单井的优化控制奠定了基础,为更好地描述异常高压气藏生产动态提供了一种有效的方法。
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No.4373407534958127****
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