深井、高温、高矿化度泡沫排水采气技术研究

TECHNIQUE RESEARCH ON GAS RECOVERY BY FOAM DRAINAGE UNDER THE CONDITIONS OF DEEP WELL, HIGH TEMPERATURE AND HIGH SALINITY

为解决川东气田深井、高温、高矿化度气井泡沫排水采气问题 ,研制了 SPI-C1 1 (A) ,SPI-C1 1 (B)型起泡剂。通过现场实验证明 :研制的 SPI-C1 1 (A) ,SPI-C1 1 (B)型起泡技术指标先进 ,助采效果好 ,适合川东气田深井、高温、高矿化度条件 ,且价格低 ,有利于降低成本 ,提高经济效益。

The East Sichuan gas field is a main field of the southwest gas reservoirs. It has gradually produced water through many years' recovery. To resolve this problem, frother has been used in gas recovery from 90s, and some effects got. But for the gas recovery under the conditions of deep well, high temperature and high salinity, these normal frothers are powerless. Therefore, two kinds of frother of SPI C 11 (A) and SPI C 11 (B) are developed. The test results show that they have advanced technique indices and good effects, and can be used under the bad conditions of deep well, high temperature, and high salinity in the East Sichuan gas field.