摘要
油层非均质性应包括两方面内容:数量上的非均质和形态上的非均质。数量上的非均质研究成果很多,而形态上的非均质论述较少。本文试图应用 VIP 数学模型模拟计算油层平面非均质分布形态对开采动态的影响,从而为油田剩余油研究提供依据。通过对平面上高渗透厚油层集中分布与分散分布的开采动态进行对比,指出分散分布的油层剩余油较多,通过对等面积分布的平面非均质油层各部位上油井生产状况的计算,认识了各部位上油井产量及含水等差异,通过对高渗透主力油层边部分布有不同面积的低渗透部位的含水饱和度状况的研究,提出了小范围变差部位可通过综合调整挖潜,而较大范围的变差部位则要通过钻加密井挖潜。
This paper suggests that heterogeneity of a reservoir can be expressed in two forms:magnitude and configuration.Much work had been done on the effect of magnitude of heterogeneity,while little work had been done on the effect of configuration of heterogeneity on the effect of reservoir behavior. An attempt has been given in this paper that the effect of lateral configu- ration of heterogeneity on the production of a reservoir is estimated by means of a VIP mathematical model,so that a basis for the estimation of the amount and distribution of remaining oil in a reservoir is provided,A comparison of production behavior of a thick reservoir with high permeabi- lity in which the high permeability part is concentrated or scattered shows that there are more oil remained in the reservoir when the high permeabi- lity part is scattered.By an estimation of the well production behavior located on different part of a reservoir with equal area but different per- meability,it is demonstrated that well production rate and water cut willbe different for wells located at different parts.By studying the change in wat- er saturation in the less permeable part arround a highly permeable part of the reservoir,it suggests that when the less permeable part is rather limited,a comprehensive adjusting development programme can be effective, while in-fill drilling is necessary when a relatively large area of lower per- meability is occured.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1992年第2期49-55,共7页
Petroleum Exploration and Development
