喇、萨、杏油田生产气油比变化规律

CHANGING REGULARITY OF PRODUCTION GAS OIL RATIO OF LA, SA & XING OILFIELDS

利用不同含水阶段石油、天然气化学组分监测资料、高压密闭取心资料、单井单层生产气油比资料以及水驱开采条件下生产气油比的数值模拟，从理论到实践对喇、萨、杏油田生产气油比的变化规律进行了系统的研究与总结，得出含水率与生产气油比没有本质的联系；压力是影响气油比变化的重要因素，在注水保持压力开采条件下生产气油比与原始气油比具有一致性，而流饱压差的高低与生产气油比没有必然的联系。

Systematic research on changing regularity of production gas oil ratio of La, Sa & Xing Oilfields is conducted from theory to practice, by using chemical component monitoring data of oil &gas at different water cut stage, high pressure sealing core drilling data, single well &single layer production gas and oil ratio data, and numerical simulation of production gas oil ratio under waterflooding. It is summarized: there is no essential connection between water cut and production gas oil ratio. Pressure is a main factor that affects the change of production gas oil ratio. Production gas oil ratio under waterflooding pressure maintenance is consistent with original gas oil ratio. There is no inevitable connection between the difference of flowing pressure and saturation pressure and production gas oil ratio.