青龙台油田可采储量的动态标定

根据青龙台油田构造复杂、非均质严重、多次进行方案调整的特点，结合生产动态资料，利用水驱特征曲线法、产量递减曲线法、广义水驱曲线法、经验公式法等四种方法对其可采储量进行了标定．当经济极限含水率取９５％时，四种方法计算的可采储量相近，而当经济极限取９８％时，水驱曲线法计算结果偏高．可采储量和剩余储量的标定结果表明，龙１１断块剩余可采储量为１６５．９１×１０４ｔ，几乎还有一半的可采储量分布在储层中，而此时的综合含水率已高达７７．３％，对油田进一步挖潜提供了依据．

Performance Calibration of the Recoverable Reserve of Qinglongtai Oil Field

Qinglongtai Oil Field is characterized by complicated structure and serious heterogeneity.Therefore its development program has been adjusted many times.Based on the production performance data,the recoverable reserve is calibrated by four methods of water drive characteristic curve,production decline curve,generalized water drive curve and empirical formula.The calculation results show that if economic limit water cut is 95%,the recoverable reserves calculated by the four methods are close to each other.If economic limit water cut is 98%,the recoverable reserve calculated by water drive characteristic curve is more than those calculated by other three methods.It is also shown that when water cut reaches to 773%,about 166 million tons of oil remains in the reservoirs yet,which accouts for about 50 per cent of total recoverable reserve.The result can supply a basis for further exploiting the potentialities of oil fields.