阿尔油田低渗透岩性油藏关键开发技术研究

Study on key development technology of low permeability lithologic oil reservoir in the Aer oilfield

针对阿尔油田低渗透岩性储层平面及纵向非均质性严重、开发难度大等特点,进行了油藏开发技术研究,形成了一套评价建产一体化、丛式井与水平井结合化、直井水平井多层多段改造化、分注精细化等适合该油藏特点的有效开发配套技术。实践表明,通过配套技术的应用,实现了高寒区特低渗透油藏的快速、整体、有效开发,且取得了良好的经济和社会效益。

Focusing on features of the low permeability lithologic reservoir in the Aer oilfield such as strong areal and vertical heterogeneities and extremely difficult development,oil reservoir development technology has been studied. As a result,a set of effective development technical package suitable for the oil reservoir has been formulated,including integration of evaluation and productivity construction,combination of clustered well and horizontal well,staged selective stimulation of vertical and horizontal wells and refinement of selective injection. It is shown from the practice that application of the technical package is helpful for the realization of rapid and effective overall development of the ultra- low permeability oil reservoirs in frigid highland and the achievement of good economic and social effects.