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新14区为侏罗系延9油藏,边底水发育,2001年建产,2002年全面注水开发,2007年以前一直保持高效开发,2008年以后随着含水上升速度的加快,两项递减增大,开发形势变差。目前该区油藏综合含水68.0%,进入高含水前期采油期,从综合含水与采出程度关系曲线可以看出,随着采出程度的增加,含水上升趋势明显,稳产难度大。本文通过对油藏各项开发规律的研究,总结出油藏开发过程中好的方面,为同类油藏延长中低含水采油期采油,提高采收率,降低油田自然递减提供依据。
The new zone 14 is Jurassic Yan 9 reservoir, with the development of edge and bottom water, construction in 2001, comprehensive waterflood development in 2002 and efficient development until 2007, with the increase of water cut after 2008, Increase, the development situation worsened. At present, the comprehensive reservoir water content in this area is 68.0%, and it enters the early oil recovery period of high water cut. It can be seen from the curve of the comprehensive water cut and the recovery rate that as the recovery degree increases, the rising trend of water cut is obvious and the production and production are difficult. Based on the research on various development rules of reservoir, this article summarizes the good aspects in the process of reservoir development, and provides the basis for prolonging oil recovery in medium and low water-cut oil recovery period, increasing oil recovery and decreasing natural decline of oil field in similar reservoirs.