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老新油田位于潜江凹陷南部老新鼻状隆起,被一系列断层切割形成断鼻或断块构造,属于低渗透岩性构造油藏。1989年投入开发,目前已进入高含水期,由于储层物质基础差,注采平面矛盾突出,剩余油挖潜难度大,开发效果逐年变差,迫切需要加强储层精细研究,挖潜油藏潜力,改善开发效果。为进一步深化油藏认识,以地层精细划分与对比为基础,结合构造特征、目前井网形式和油水井生产资料对老新油田各个砂体的含油边界、井网控制状况以及剩余油分布规律进行分析研究,明确各个砂体的潜力,指导油田下步开发调整。
Laosin Oilfield is located in the old nose-like uplift in the southern part of Qianjiang Sag. It is cut by a series of faults to form a broken nose or fault block structure and belongs to the low permeability lithologic structural reservoir. Since 1989, when it was put into development, it has entered into a period of high water cut. Due to the poor material base of the reservoir and the obvious contradiction between injection and production, the remaining oil is difficult to tap and the development effect is deteriorating year by year. Therefore, it is urgent to intensify reservoir research, tap potential of reservoirs, Improve development effectiveness. In order to further deepen reservoir understanding, based on the fine division and contrast of strata, combined with the structural characteristics, current well patterns and production data of oil and water wells, the oil boundary, well pattern control and residual oil distribution of various sand bodies in Laoxin Oilfield Analyze and study the potential of each sand body to guide the development and adjustment of the next step of the oilfield.