摘要
基于普通稠油提出的冷区流体流向热区进行压力补充的传统产能公式对特稠油不适用。通过引入过热蒸汽状态方程,利用能量守恒定律推导出加热半径计算公式。针对特稠油的性质特点,忽略冷区内稠油的流动性,只考虑热区内的流动。利用弹性介质不稳定渗流拟稳态解与推导的加热半径模型融合得到完整的产能计算模型。利用该产能模型对哈萨克斯坦莫尔图克油田某井进行产能计算,计算结果与生产动态数据吻合很好。
The production capacity theory,based on normal crude oil,is not applicable in extraheavy oil.By introducing the state equation of superheated steam into conservation of energy,the heating radius model can be derived.The mobility of oil in cold area has been ignored in response to the characteristics of extra-heavy oil.By fusing the quasi steady state solution of instable seepage equation and heating radius model,the complete production capacity theory of extra-heavy oil can be obtained.The calculation results of production capacity theory matches well with those of production dynamic data of KMK.
出处
《北京石油化工学院学报》
2016年第1期12-16,共5页
Journal of Beijing Institute of Petrochemical Technology
基金
国家科技重大专项(2011ZX05012-004
2011ZX05024-005-006)
中国石油勘探开发研究院科技项目联合资助
关键词
特稠油油藏
过热蒸汽吞吐
封闭边界
拟稳态渗流
产能
extra-heavy oil reservoir
cyclic superheated steam stimulation
closed boundary
quasi steady state seepage
production capacity
