联合增压和气举优势的新型排水采气工艺——BASI工艺

气藏在开发过程中都会产地层水或凝析液。产出液若不能及时排出,就会聚积在井底,增大井底回压、降低产气量,严重时可导致气井水淹停产。排液成为维持气井后期生产的重要措施。为此,介绍了一种新型排水采气技术———BASI工艺。它联合增压和气举2大工艺优势作业,不需要提供气举源,能高效地排出井底积液,实现气井连续携液生产,较大地提高采收率。该工艺已在已在加拿大、美国气田得到了成功试验及推广应用,并且在国内气田应用前景良好。

A New Technology of Water Pumping Gas Production with the United Advantages of Pressure Booster and Gas Lift ——BASI Technology

Gas reservoir can produce the stratum water or condensed liquid in the development.If this liquid can not be discharged,it will gather at the bottom of well,increase the bottom hole pressure,lower the output and thus result in the water-out well and shut-down well.So discharging the liquid has become one important measure to maintain the last periodic production of gas well.Therefore,a new technology of water pumping gas production——BASI technology,is introduced,which unifies two great preponderant techniques of pressure booster and gas lift,requires no source of gas lift.This technology also can discharge the bottom liquid efficiently,realize continuous production of gas well with liquid,and thus greatly raise the recovery rate.This technology has been tested successfully and used widely in oilfields of America and Canada,and thus has the good prospect of application in domestic gas fields.