发达对象采油系数多样性评价

IF 0.4 Q4 GEOSCIENCES, MULTIDISCIPLINARY
Fuad F. Maharramov, Vagif M. Kаrimov, Jafar J. Sharifov
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引用次数: 0

摘要

本文根据阿塞拜疆海上油田收集和整理的地质和商业资料,讨论了其储量利用程度不同的原因。为此,根据影响采收率的复杂因素——自然状态进行了矿床识别。建立了海上油藏采油模型,主要有两种驱油机制:混合驱和溶气驱。在此基础上,结合地质经济分析,对影响采收率的因素进行了对比分析。研究具有不同自然机制特征的矿床的不同性质实现储量,从而确定不同开发阶段的地质技术参数对采收率的影响程度。对象:共和国近海矿床,以溶气和混合驱为主要特征。应用数理统计方法(学生标准和费雪标准)对不同自然条件下已开采矿床的参数进行比较分析,从而揭示储量利用的不同程度和不同模式。为了确定各因素对采收率的影响,采用相关回归分析的方法。研究发现,采收率因素的大范围变化与储层的内部结构有关,与储层能量的活跃性和使储层饱和的流体的活跃性程度有关。众所周知,每一个地质和技术参数都在不同程度上影响着采收率,这种影响是复杂的,并且在油藏开采过程中会发生一定的变化。为了研究参数对采收率的影响,建立了海上混合气驱和溶液气驱开采的若干参数平均值矩阵。利用多元相关回归分析和相应的软件,我们得到了上述每种机制的模型。对这些模型进行比较分析,以及对所获得的回归方程中所包括的参数进行地质和实地研究,可以及时纠正石油生产过程,也可以用于设计进一步开采这些目标的项目。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the assessment of the diversity of coefficients of oil recovery from developed objects
Based on the geological and commercial material collected and systematized by the offshore fields of Azerbaijan, the article discusses the reasons for the varying degrees of use of their reserves. For this purpose, the identification of deposits was carried out accord- ing to the natural regime, as a complex factor affecting oil recovery. Oil recovery models have been obtained for offshore reservoirs, draining mainly in two types of mechanisms: mixed and solution gas drives. Based on these regression equations and geological-economical analysis, a comparative analysis of the factors influencing oil recovery was carried out. Study of the different nature of the implementation of reserves of deposits characterized by different natural mechanisms so as to determine the degree to which the geological and technological parameters at various stages of development influence oil recovery. Objects: Offshore deposits of the Republic, characterized mainly by the solution gas and mixed drives. Application of the methods of mathematical statistics (Student’s and Fisher’s criteria) for the comparative analysis of the parameters of the mined deposits, confined to different natural conditions, allowing the revelation of the degree to which they are different and various patterns of the use of the reserves. In order to determine the influence of various factors on oil recovery, we used the method of correlation-regression analysis. It was found that a wide range of changes in oil recovery factors is associated with the internal structure of the deposits, with varying degrees of activity of the energy of the reservoirs and the fluids saturating them. It is known that each of the geological and technolog- ical parameters to one degree or another affects oil recovery, this influence is complex and subject to certain changes in the process of reservoir mining. In order to study the influence of parameters on oil recovery, we developed matrices of averaged values of a number of parameters of offshore deposits draining by mixed and solution gas drives. Using multivariate correlation-regression analysis and appropriate software, we obtained models for each of the above types of the mechanisms. A comparative analysis of those models, as well as geological and field studies of the parameters included in the obtained regression equations, make it possible to correct the oil production process in a timely manner, and can also be used in designing projects for the additional mining of those objects.
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来源期刊
Journal of Geology Geography and Geoecology
Journal of Geology Geography and Geoecology GEOSCIENCES, MULTIDISCIPLINARY-
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40.00%
发文量
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