子洲气田山_2段单井出水机理研究

STUDY ON THE MECHANISM OF WEATER COMING OUT IN SINGLE GAS WELL IN SHAN_2 GAS RESERVOIR OF ZIZHOU GAS FIELD

气井产水不仅在地层中气水两相渗流时影响产能,还会在井底形成积液影响气井生产,可见,产水对气井的生产的危害是很大的。因此,为了充分利用地层能量,防止气井高产水,有必要研究单井出水类型及机理。本文依据地质、测井等资料对生产井出水类型及机理进行研究,划分出单井产水类型;再利用试气、生产、水化学等资料分析给与证实,最终得出单井地层水层识别原则。

The coming out of water of gas well could not only affect the deliverability in gas-water transfusion in the layers,but also be able to have the impact on the producing of gas because of forming of liquid on the bottom of the gas well.Clearly,the harm of the water to the production of gas is very great.Therefore,in order to use the energy of the layers sufficiently,to prevent from coming out of water in gas well,it is necessary to find out the type and the mechanism of the water.Based on geology,well log and other data the type and the mechanism of the water are studied,and the type of the water in single well is classified.In the end,according to data obtained,the principle of identification of formation water layer in single well is found out.