摘要
在分析利用传统存水率在评价开发效果中存在的问题和局限性的情况下,提出了存水率计算应考虑水侵量的影响。文中的水侵量计算采用物质平衡法进行计算,避免了对水体大小及形态的假设,大大提高了计算精度。利用传统存水率公式和改进的计算公式分别做出存水率与采出程度的关系曲线作为两组标准曲线,与实际生产数据进行对比。结果表明,实际生产数据更靠近改进的存水率计算公式作出的曲线,说明利用本文所改进的存水率计算公式能更准确的评价油藏实际开发效果。
The water storage rate is an important index of evaluating the effect of water-flooding oilfield development;it not only affects the water-flooding reservoir development,but also has a direct impact on the level of economic benefits.In this paper,the problems and limitations of using traditional water storage rate to evaluate the development effect were analyzed;it’s pointed out that the water storage rate calculation should take amount of the water invasion into account.Calculating amount of the water invasion should be carried out by the material balance method to avoid the assumption of the size and shape of the water body and greatly improve the calculation accuracy.The traditional water storage rate formula and improved formula were separately used to make the relationship curves of water storage rate and degree of recovery,the relationship curves were used as two sets of standard curve to compare with actual production data.The results show that the actual production data are closer to the curve made by the improved water storage formula,which can prove that the improved water storage rate formula will be more accurate to evaluate the effect of reservoir development.
出处
《辽宁化工》
CAS
2013年第7期819-822,共4页
Liaoning Chemical Industry
关键词
存水率
开启型油藏
注水开发效果
water storage rate
open reservoir
effect of the water injection development
