水力喷射径向钻孔技术在江苏油田的应用研究

Research of the application of hydraulic jet radial drilling technique in Jiangsu Oilfield

随着多年持续开发生产,江苏油田的老井数量不断增加,同时存在多块低渗油气藏和稠油油藏,开采难度越来越大,一些区块无法实施压裂改造等工艺措施,而水力喷射径向井钻孔技术提供了一种新的开采工艺。水力喷射径向井钻孔技术具有定层位、定方位、定深度等优点,可以准确地对剩余油富集部位进行有目标的挖潜增产,其措施半径最长可达到100m以上。到目前为止,该技术在江苏油田现场应用6井次,作业过程进展顺利,为江苏油田增产提供了一种经济高效的开采途径。

With the continuous exploring and producing for many years, the number of the old wells in Jiangsu Oilfield has become more and more. Meanwhile, the exploring becomes more and more difficult due to existence of several low - permeability reservoirs and heavy oil reservoirs. Fracturing treatment can not be performed in some fields. However, the hy- draulic jet radial drilling provides a new type of exploiting technology which can determine position, orientation, and depth. As a result, oil production from rich parts of the remaining oil in reservoirs can be purposefully increased, and the longest radius of treatment can reach to over 100 m. Up to now, the technology has been applied successfully in 6 wells of Jiangsu Oilfield, and provides an economic and efficient way for oilfield exploitation.