殷代印,王东琪,张承丽
YIN Daiyin,WANG Dongqi,ZHANG Chengli

• 1:东北石油大学石油工程学院

摘要(Abstract)：

目前启动压力梯度的数值模拟技术尚不成熟,虽能进行机理分析,但由于运算量过大还未广泛应用于实际油藏开发。鉴于启动压力梯度设置的复杂性,在Eclipse软件的基础上,针对特低渗透油藏启动压力梯度变化大的特点,在不同渗透率级别下应用"THPRES"关键字设置平衡分区,研究了启动压力梯度等效数值模拟的应用方法。该方法能够大大地减少整体工作量和计算量,可大规模应用于实际区块油藏数值模拟,为合理预测特低渗透油藏开发提供了有力的依据。
At present,the numerical simulation technique by the start-up pressure gradient is not yet mature,although its mechanism analysis can be performed; it has not been widely used in the actual oil reservoir development just due to the excessive operation. In view of the complexity set in the start-up pressure gradient,on the basis of Eclipse Software,especially for the serious start-up pressure gradient variation in the extra-low-permeability oil reservoir, " THPRES" keyword is applied to set the equilibrium region at different permeability levels,and moreover the applying method of the equivalent numerical simulation by the start-up pressure gradient is studied. This approach can greatly reduce the overall workload and the amount of calculation,thus it can be applied to the actual numerical reservoir simulation in a large scale,and furthermore can provide the strong evidences for reasonably predicting the development of the extra-low-permeability oil reservoir.

关键词(KeyWords)： 渗透率级别;启动压力梯度;数值模拟;门限压力;低渗透油藏
permeability level/grade;start-up/threshold pressure gradient;numerical simulation;threshold pressure;low-permeability oil reservoir

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金“低渗透油藏表面活性剂驱微乳液渗流机理及数值模拟研究”(51474071)

作者(Author): 殷代印,王东琪,张承丽
YIN Daiyin,WANG Dongqi,ZHANG Chengli

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