低渗透油田超前注水研究

为了提高木头油田泉头组扶余油藏的开发效果、经济效益及最终采收率，木头油田在大面积同步注水开发取得较好效果的同时，不断探索开发的新途径。通过借鉴国内外油田开发经验，经过不断探索、实践，找出了一条提高单井产量、实现特低渗透油田高效开发的新路子，即采用超前注水、先注后采的注水开发方式，合理地补充地层能量，提高地层压力，使油井能够长期保持较高的地层能量和旺盛的生产能力，产量递减明显减小。同时降低了因地层压力下降造成的地层伤害，抑制了油井的初始含水率，从而提高了投产初期油田的产量，使得油田能够保持较长的稳产期，减缓了递减，提高最终采收率。

Low Permeable Oilfield to Run before to Note the Research of Water

In order to improve the development result, economic benefits and final recovery ratio of the oil pool of the Fuyu in head group of spring of the Mutou oilfield, which investigates new path of the development continuously at the time of big area noting the water to obtain the better result synchronously. Pass to draw lessons from the domestic and international oilfield development experience, pass by to investigate,practice continuously,find out a new way that raises the single well yield and realizes the high efficient development in low permeable oilfield, namely the way of development that adopts after run before note the water, adopts after the note first, improves the stratum pressure,for a long time, and the output decreases gradually to let up obviously. Reducing the stratum caused by the fact that the stratum pressuredrops at the same time injures, has suppressed the initial water content of oil well, thus improved the output of the oilfield in initial stage of going into operation,has enabled the oilfield to keep relatively longer steady to produce the period, decelerate to gradually decrease, improve the final recovery ratio.