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Innovative mechanisms for improving oil production efficiency 提高石油生产效率的创新机制
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100826
G. S. Suleymanov, J. K. Guliyev
The paper discusses innovative mechanisms for increasing EOR factor. For this purpose, the paper describes an innovative algorithm of efficient use of existing production facilities in the oil industry. For this purpose, the research puts forward innovative methods of workover efficiency improvement and a new methodical approach based on them. The paper outlines complex innovative and economic mechanisms for increasing EOR factor. At the same time, the role of the new methodical approach proposed EOR factor is science-based, both theoretically and practically. Keywords: production; innovations; fixed assets; overhaul; efficiency; oil recovery.
本文讨论了提高采油系数的创新机制。为此,论文介绍了一种有效利用石油工业现有生产设施的创新算法。为此,研究提出了提高修井效率的创新方法和基于这些方法的新方法。论文概述了提高 EOR 因子的复杂创新经济机制。同时,新方法提出的 EOR 因子的作用在理论和实践上都是科学的。关键词:生产;创新;固定资产;大修;效率;采油。
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引用次数: 0
Estimation of the maximum downhole pressure, excluding the destruction of the bottom-hole zone of the formation, based on geomechanical core studies 根据地质力学岩心研究估算最大井下压力,不包括地层井底区域的破坏情况
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100832
A. I. Ermolayev, S. I. Efimov, P. V. Pyatibratov, E. D. Minikhanov
The purpose of the work is to generate a methodology to substantiate the limit values of parameters that determine the technological mode of operation for production gas wells. The basis for this is the data of laboratory geomechanical and filtration core studies and the results of mathematical modeling. Determination of filtration-capacitance and strength characteristics of weakly cemented (weakly consolidated) cores of Cenomanian and Turonian ages was carried out under reservoir conditions (in terms of baric parameters). The research was aimed at identifying the limitations, the violation of which leads to the destruction of the reservoir. A modification of the methodology for determining the marginal depression based on laboratory core studies and mathematical modeling using the Coulomb-Mohr destruction criterion is proposed. Keywords: gas wells; pressure; depression; core; stress; formation; destruction.
这项工作的目的是制定一种方法,以证实决定生产气井技术运行模式的参数极限值。其基础是实验室地质力学和过滤岩心研究的数据以及数学建模的结果。在储层条件(巴氏参数)下,确定了仙人掌纪和图伦纪弱胶结(弱固结)岩心的过滤电容和强度特征。研究的目的是确定限制条件,因为违反这些限制条件会导致储层破坏。在实验室岩心研究和使用库仑-摩尔破坏标准的数学模型的基础上,提出了对确定边际凹陷的方法进行修改的建议。关键词:气井;压力;凹陷;岩心;应力;地层;破坏。
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引用次数: 0
Application of machine learning methods to forecast the rate of horizontal wells 应用机器学习方法预测水平井速率
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100833
A. V. Soromotin, D. A. Martyushev, I. B. Stepanenko
The paper summarizes and provides an overview of the analytical equations of fluid inflow to horizontal wells. Using the actual data, it was found that analytical equations do not allow reliably calculating and predicting the flow rate of horizontal wells and it is necessary to apply new approaches to solve this problem. The paper proposes a fundamentally new approach to forecasting the flow rate of horizontal wells, based on the application and training of machine learning methods. A fully connected neural network of direct propagation was used as a model. When comparing the actual and calculated using a fully connected neural network of direct propagation of horizontal well flow rates, their high convergence with a correlation coefficient of more than 0.8 was established. In further studies, it is planned to expand the sample and parameters included in the model to improve the calculation and forecasting of horizontal wells in various geological and physical conditions of their operation. Keywords: horizontal well; oil flow rate; linear regression; artificial neural network.
本文总结并概述了水平井流体流入的分析方程。利用实际数据发现,分析方程无法可靠地计算和预测水平井的流量,因此有必要采用新方法来解决这一问题。本文在应用和训练机器学习方法的基础上,提出了一种预测水平井流量的全新方法。模型采用了直接传播的全连接神经网络。在比较水平井流量的实际值和直接传播全连接神经网络的计算值时,发现它们的收敛性很高,相关系数超过 0.8。在进一步研究中,计划扩大模型中的样本和参数,以改进水平井在各种地质和物理条件下运行的计算和预测。关键词:水平井;石油流速;线性回归;人工神经网络。
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引用次数: 0
Hydrodynamic simulation of the current state of liquid filtration under water emulsion impact on оil layer 水乳化液对оil 层影响下液体过滤现状的流体力学模拟
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100834
N. I. Нuseynova, N. M. Safarov, G. N. Safarova
The article, in order to increase the efficiency of field development, it is proposed to apply water-oil emulsion to the formation along with dewatering. In order to evaluate the results of the complex impact on the oil layer, the method based on the mathematical modeling of fluid percolation in the layer by fixing the flow lines was used. By calculating and visualizing the distribution of hydrodynamic indicators of fluid filtration flows in the formation environment, the fast-acting mathematical model allows for a fairly accurate assessment of the current state of the impact process on productive formations. The proposed method for assessing the current state of liquid percolation during the impact of water-oil emulsion on the oil layer with local detailed solution , in the case of uncertainty - when solving the diagnostic problems that arise due to the lack of geophysical and hydrodynamic (physical, mechanical, lithological and other) data of the current indicators characterizing the reservoir system can prevent many difficulties. Keywords: оil layer flooding; water emulsion inpact; stream lines; displacement front; viscosity of water-oil emulsion; diagnostic; filtration.
文章为了提高油田开发效率,建议在地层中应用水油乳化液,同时进行脱水。为了评估对油层的复杂影响结果,采用了基于固定流线的油层流体渗流数学模型的方法。通过计算和可视化地层环境中流体过滤流的流体动力指标分布,快速反应数学模型可以相当准确地评估对生产地层影响过程的现状。所提出的评估水油乳化液对油层的影响过程中液体渗流现状的方法具有局部详细的解决方案,在不确定的情况下--在解决由于缺乏描述储层系统特征的当前指标的地球物理和水动力(物理、机械、岩性和其他)数据而产生的诊断问题时,可以避免许多困难。关键词油层淹没;水乳状液冲击;流线;位移前沿;水-油乳状液粘度;诊断;过滤。
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引用次数: 0
Visualization of reservoir fluid filtration characteristics distribution, as a method of oil field development management 油藏流体过滤特性分布可视化,作为油田开发管理的一种方法
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100821
B. A. Suleimanov, N. I. Huseynova
For monitoring of the zonal impact on the productive strata of oil fields in order to increase oil recovery, it is proposed to use a cartographic method for presenting the distribution of hydrodynamic indicators with the subsequent calculation of the corresponding information indicators. The cartographic method makes it possible to visualize the distribution of indicators characterizing the filtration of formation fluid in a productive formation at a certain time point. The algorithm for calculating information indicators used to conduct a comparative analysis of the hydrodynamic indicators distribution in the impact area for a certain time period allows diagnosing the evolution of the distribution of hydrodynamic indicators both at the all horizon of oilfield and for its individual zones before and after the planned impact. The proposed method, based on the relationship between the productivity of wells operated under interference, and the current geological and hydrodynamic of the reservoir state, can be recommended for assessing the effectiveness of the impact on the productive layers of oil fields. The implementation of the proposed method is shown on the example of the development data of the «Neft Dashları» and «Pirallahı» fields (Azerbaijan). The analysis of the obtained results showed that the impact on the formation, taking into account the assessment of the distribution of hydrodynamic and information indicators, contributes to the choice of a rational mode of stimulation on the prodactive strata. Keywords: reservoir; enhanced oil recovery; zonal impact; well productivity; diagnostics; filtration; monitoring; streamlines.
为了监测对油田生产层的分区影响,以提高石油采收率,建议使用制图方法显示流体动力指标的分布情况,然后计算相应的信息指标。这种制图方法可以直观地显示某一时间点生产地层中地层流体过滤指标的分布情况。计算信息指标的算法用于对一定时间段内影响区域的流体动力指标分布进行比较分析,可以诊断计划影响前后油田所有地平线及其个别区域流体动力指标分布的演变情况。所提出的方法以受干扰油井的生产率与当前储层地质和水动力状态之间的关系为基础,可推荐用于评估对油田生产层的影响效果。以 "Neft Dashları "和 "Pirallahı "油田(阿塞拜疆)的开发数据为例,说明了建议方法的实施情况。对所获结果的分析表明,考虑到对水动力和信息指标分布的评估,对地层的影响有助于选择对前驱地层进行激励的合理模式。关键词: 储层;提高石油采收率;分区影响;油井生产率;诊断;过滤;监测;流线。
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引用次数: 0
Estimation of the waterflooding process efficiency based on a capacitive-resistive model with a nonlinear productivity index 基于电容-电阻模型和非线性生产力指数的注水工艺效率估算
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100820
A. A. Abbasov, E. M. Abbasov, Sh. Z. Ismayilov
A modified Capacitance-Resistance Model (CRM), with Forchheimer two terms law non-linear Productivity Indexes (PI), has been suggested to evaluate efficiency of waterflooding in heterogeneous reservoirs. The model represents the intra-formation processes in heterogeneous reservoirs more accurately, thus it can be used for production forecasting and waterflood monitoring. CRM model is based on continuity equation between production and injection, and has several additional advantages. The technique does not require sophisticated geological and hydrodynamics numerical simulation modeling, which would require expensive computing time and based on actual hydrodynamic data. The model adequately describes depletion process and can be used for production forecasting and waterflooding mechanism. Capacitance-resistance model with non-linear productivity index has been tested against numerical model as well as actual production data. Additionally, non-linear productivity index based CRM model was compared against the CRM model with linear productivity index function. Keywords: production, modeling, waterflooding efficiency, capacitance-resistance model, non-linear productivity index, Forchheimer two terms law.
有人提出了一种改进的电容-电阻模型(CRM),该模型具有福赫海默(Forchheimer)二项定律非线性生产力指数(PI),用于评估异质油藏的注水效率。该模型更准确地反映了异质油藏的内部形成过程,因此可用于产量预测和注水监测。CRM 模型基于生产与注水之间的连续性方程,还具有其他一些优点。该技术不需要复杂的地质和流体力学数值模拟模型,而这些模型需要昂贵的计算时间和实际的流体力学数据。该模型充分描述了耗竭过程,可用于产量预测和注水机制。带有非线性生产力指数的电容-电阻模型已根据数值模型和实际生产数据进行了测试。此外,还将基于非线性生产率指数的 CRM 模型与基于线性生产率指数的 CRM 模型进行了比较。关键词:生产、建模、注水效率、电容-电阻模型、非线性生产率指数、福希海默二项法。
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引用次数: 0
Discrete rough surface intensifiers in the thermal decomposition plants: current status and future potential 热分解设备中的离散粗糙表面强化剂:现状与未来潜力
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100823
O. Kolenchukov, T. N. Kolenchukova, K. Bashmur
It is known that roughness affects the drop in hydraulic pressure, increasing the resistance force. The formation of a boundary layer on rough surfaces significantly affects fluid dynamics and the process of heat exchange in convective flows, causing disturbances in the velocity profile and affecting surface resistance, turbulent mixing and heat exchange. Despite the fact that there are a large number of experimental and CFD studies in the field of studying turbulent flow, there is no full-fledged review of this issue. In view of this, it is necessary to systematize studies related to the study of the influence of a rough surface during turbulent fluid flow. In most cases, roughness is quantified only using a single scaling parameter – the equivalent roughness height of a grain of sand, which can be expressed based on statistical parameters. This article presents an overview and generalization of data on the parameters and characteristics of rough surfaces. The correlation method is considered using the standard deviation in the slope of the roughness profile, as well as the effect of the secondary flow on the flow of the coolant in a closed space. The results of this study can be used in the intensification of heat transfer in thermal destruction reactors using intensifiers in the form of discretely rough surfaces. Keywords: discrete-rough surfaces; thermal contact surface;и rough surface; turbulent flow; pyrolysis reactor; thermal destruction; heat exchanger.
众所周知,粗糙度会影响水压下降,增加阻力。粗糙表面上形成的边界层会严重影响对流中的流体动力学和热交换过程,导致速度曲线紊乱,影响表面阻力、湍流混合和热交换。尽管在湍流研究领域有大量的实验和 CFD 研究,但目前还没有关于这一问题的全面综述。有鉴于此,有必要对湍流流体流动过程中粗糙表面影响的相关研究进行系统整理。在大多数情况下,粗糙度仅使用单一比例参数进行量化,即一粒沙子的等效粗糙度高度,该参数可根据统计参数进行表达。本文对粗糙表面的参数和特征数据进行了概述和归纳。使用粗糙度曲线斜率的标准偏差以及二次流对封闭空间中冷却剂流动的影响,考虑了相关方法。这项研究的结果可用于在热破坏反应器中使用离散粗糙表面形式的强化器强化传热。关键词:离散粗糙表面;热接触表面;и 粗糙表面;湍流;热解反应器;热破坏;热交换器。
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引用次数: 0
Using the methods of mathematical statistics to select options for offshore deep-sea oil and gas fields for Arctic conditions 利用数理统计方法为北极条件下的近海深海油气田选择方案
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100825
D. A. Mirzoev, O. Arkhipova
The essence of the method of expert assessments lies in the rational organization of the analysis of the problem by experts with the quantitative assessment of judgments and the processing of their results. The offshore deep-sea oil and gas field was chosen as the object of study and a survey of experts was conducted on the options for choosing fields depending on the criteria related to a particular group of indicators, such as: natural and climatic conditions, arrangement, development, and safety of the field. At the next stage of the study, for each of the groups of indicators, an analysis of variance was carried out, designed to find the level of influence of the criteria on the presented fishing options. The criteria were compared with each other and which of them differed from each other were determined. The study showed that the use of statistical analysis methods makes it possible to formalize the procedures for collecting, summarizing and analyzing the opinions of specialists in order to transform them into the most convenient form for making an informed decision. Keywords: mathematical statistics; expert evaluation; statistical analysis; offshore oil and gas industry; deep-water fields.
专家评估方法的精髓在于合理组织专家对问题进行分析,对判断进行定量评估,并对结果进行处理。选择近海深海油气田作为研究对象,并根据与特定指标组相关的标准,如:自然和气候条件、布局、开发和油气田的安全性,对专家进行了油气田选择方案的调查。在研究的下一阶段,对每组指标进行了方差分析,旨在找出标准对所提出的捕鱼方案的影响程度。对这些标准进行了相互比较,并确定了它们之间的差异。研究表明,使用统计分析方法可以使收集、总结和分析专家意见的程序正规化,以便将其转化为最方便的形式,从而做出明智的决定。关键词:数理统计;专家评价;统计分析;海洋石油和天然气工业;深水油田。
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引用次数: 0
Identification of structural & tectonic features and prospects of oil and gas potential in the northwestern part of Shimali Absheron uplift 确定 Shimali Absheron 隆起西北部的结构和构造特征以及油气潜力前景
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100828
Т. X. Niyazov, H. I. Shakarov, А. I. Khuduzade
In this thesis, based on geological and geophysical data from zone of uplift in Northwestern part of Shimali Absheron (Northern Absheron), it was considered clarifying the geological structure involved in the Pliocene section, in particular, the Podkirmaky suite (PK). It was established that, several non-anticline (stratigraphic and tectonically screened) traps that are formed in the traced zones of pinching out of the Podkirmaky formation (PK). As a result of the studies, the reservoir properties of the deposits corresponding to Podkirmaky suite (PK) and the Nadkirmaky sandy suite (NKP) (which are characterized by high NetToGross) were studied. A re interpretation of seismic sections (in time and depth) of past and recent years was carried out, together with well data, and a structural map of Podkirmaky suite (PK) was build. Keywords: uplift zone; seismic exploration; geological structure; productive series (PS); pinch-out zone; non-anticline trap; oil and gas content; seismic section in time and in depth.
本论文以 Shimali Absheron(北 Absheron)西北部隆起带的地质和地球物理数据为基础,研究了上新世地段的地质结构,特别是 Podkirmaky 组(PK)。研究发现,在 Podkirmaky 地层(PK)的夹层痕迹区形成了几个非大西洋线(地层和构造筛选)陷阱。研究的结果是,对 Podkirmaky 组(PK)和 Nadkirmaky 砂质组(NKP)(具有高 NetToGross 的特点)相应矿床的储层性质进行了研究。结合油井数据,对过去和最近几年的地震剖面(时间和深度)进行了重新解释,并绘制了 Podkirmaky 组(PK)的构造图。关键词:隆起带;地震勘探;地质结构;丰产层系(PS);夹出带;非大西洋线陷阱;油气含量;时间和深度地震剖面。
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引用次数: 0
Economic assessment of the present state of cluster formation in Azerbaijani oil and gas companies 对阿塞拜疆石油天然气公司集群形成现状的经济评估
IF 1.7 Q2 Mathematics Pub Date : 2023-06-30 DOI: 10.5510/ogp2023si100866
E. G. Mamedova, А. I. Mirgeydarova
Clusters attach great importance to supporting the activities of business entities in various sectors of the economy, as well as accelerating their development, economic and social development of regions throughout the country, modernization of the infrastructure base of the economy. Observation of the processes of economic development taking place in the countries of the world shows that in order to ensure high economic development, competitive sectors of the economy, a system of enterprises producing large volumes of exportoriented products, comprehensive economic development is of paramount importance. In general, at present the role of optimal models of economic development in the rise of developed countries to this level is great, and it is in these processes that the institution of the cluster is of paramount importance. Keywords: clustering; innovative models of clusters; innovative industrial cluster; fuel and energy complex; infrastructure of the economy.
产业集群对支持各经济部门企业实体的活动、加快其发展、全国各地区的经济和社会发展、经济基础设施的现代化具有重要意义。对世界各国经济发展进程的观察表明,为了确保经济的高度发展、具有竞争力的经济部门、生产大量出口型产品的企业体系,经济的全面发展至关重要。总体而言,目前最佳经济发展模式在发达国家崛起到这一水平的过程中发挥着巨大作用,而正是在这些过程中,产业集群制度具有极其重要的意义。关键词:集群;集群创新模式;创新型产业集群;燃料和能源综合体;经济基础设施。
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引用次数: 0
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