喷射气举采油技术在让那若尔油田的应用

Application of jet gas lift technology in Zhalaroer oilfield

让那若尔油田普遍采用连续气举进行开发,随着地层压力下降,连续气举生产能力受到较大的制约,单井产量降低,气举效率逐年下降。针对低压油藏连续气举开发所面临的低产低效问题,进一步提高气举开发效果,使用喷射气举采油新工艺,建立喷射泵数学模型和抽汲增产模型,通过在油田现场的应用,取得了增产、节约气量、降低井底流压和提高气举效率的良好效果。验证了喷射气举在低压油藏开发中,比常规气举采油有更大的优势,在其他气举采油油田具有广阔的应用前景。

The continuous gas lift is widely used in the development of Zhalaroer oilfield.With the decreases of formation pressure,the continuous gas lift production capacity is greatly restricted,not only the well’s production rate obviously decreases,but also the gas lift efficiency decreases year by year.Aiming at the low-production rate and low-efficiency problems faced by continuous gas-lift development in low-pressure reservoirs,the effect of gas lift development was further improved.The new technology of jet gas lift oil recovery was used to establish the mathematical model of the jet pump and the pump stimulation model.It has the excellent effects of increasing production,saving gas injection volume,reducing bottom hole flowing pressure and improving gas lift efficiency.It has been verified that jet gas lift has a greater advantage than conventional gas lift oil recovery in low-pressure reservoir development,and has broad application prospects in other gas lift oilfields.