期刊名称：Perm Journal of Petroleum and Mining Engineering
印刷版ISSN：2224-9923
电子版ISSN：2305-1140
出版年度：2020
卷号：20
期号：1
DOI：10.15593/2224-9923/2020.1.6
语种：English
出版社：Perm National Research Polytechnic University
摘要：Engineering practice of a field complicated by high level of uncertainty in geological structure, abnormal properties and composition of formation water, and presence of halite in pore space of the reservoir is described. Maintaining reservoir pressure is fundamental for ensuring target production levels, yet its implementation is not always a trivial task. The problem of a saline reservoir simulation has been studied on an East Siberian field with reservoir’s high heterogeneity, low permeability, and salination. Practice of determining the optimal system of development using modern methods of simulation, analysis and calculation is considered. Multivariate calculations were conducted using a hydrodynamic model based on the probabilistic geological model. The methodology of selecting the basic variants of the geological model corresponding to the probability of 10, 50, and 90 % was used subject to two factors: initial geological reserves and reservoir connectivity. Qualitative and quantitative estimations of changes in production wells productivity due to problems caused by organic and inorganic sedimentation in the bottomhole formation zone were performed. Formation water and mineral composition of the rock formation were analysed. These data were used to simulate the organic and inorganic sedimentation in the bottomhole formation zone due to changes in pressure and temperature during production and fluid injection into the formation. The simulation of solids build-up during fluid flow in the bottomhole formation zone allowed us to determine threshold values of well producing characteristics and bottomhole pressure levels, as well as dependencies of decrease in reservoir properties of the bottomhole formation zone on the amount of pumped fluid under the selected well operation parameters.
其他摘要：Приведен опыт проектирования месторождения, осложненного высоким уровнем неопределенности по геологическому строению, аномальными свойствами и составом пластовой воды, наличием галита в поровом пространстве коллектора. Поддержание пластового давления – од
