高温高压气井生产管柱内气体参数分析

Analysis of Gas Parameters within Production Strings of HTHP Gas Wells

高压高产气井管柱内的流体参数对于气井生产动态分析具有重要的意义。考虑气体参数之间的相互影响和实际气井的井身结构、井斜、油管变径等因素,采用将井筒分段迭代的数值解法,以塔里木油田大北202井(高温高压气井)现场采集资料为依据进行了实例计算,得出了气井生产管柱内气体压力、温度、密度、流速等参数在不同产量下随井深的变化曲线,进而分析总结了气体在井筒内的流动规律,为今后试井工艺和油管柱设计等提供了重要的技术依据。

The fluid parameters within the casing strings of HTHP wells were of great significance for production performance analysis of gas wells.In consideration of the influence between gas parameters and factors of well structures,well deviation and tubing diameter changes,a numerical solution are used for iteration of wellbore segmentation.The field data collected from Well Dabei 202(HTHP gas well) in Tarim Oilfield are taken for example,energy the parameters of curves of flow pressure,temperature,gas velocity are derived in gas wells and rules of gas flowing in wells are summed up.It provides important basis for future design of well test process and tubing strings.