bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of Oil Production Wells Flowing Mode by Ultrasonic and Induction Systems
Authors: Verbitsky Vladimir Sergeevich , Goridko Kirill Alexandrovich , Dengaev Alexey Victorovich , Getalov Andrey Alexandrovich , Sargin Boris Victorovich , Grekhov Ivan Victorovich , Kuzmin Maxim Igorevich , Ahmetgaliev Albert Rinatovich , Lashchev Denis Mikhailovich 
Published: September 2020

Abstract
The current operating conditions of the fields with a high reservoir energy potential (with a high gas factor) are characterized by the onset of a period of reduction in reservoir energy, while the total losses for raising well products from the bottom to the surface may increase. Under these conditions, operating the well in a fountain way is irrational, because the efficiency factor of the winch decreases and can be no more than 10-20%, and serial submersible pumping systems (ESP) are unstable and in most cases, they develop the well and put it into the flowing mode of the well products through the annulus.
The research work has been carried out to justify the technology of acoustic impact on gas-saturated oils of various fields according to the criterion of reservoir energy potential. The flowing wells in the oil and gas condensate field have been analyzed, the dynamics of changes in the efficiency of fountain wells has been presented, and the main reasons for the decrease in the efficiency of flowing have been highlighted. The theoretical studies have been carried out in the field of acoustic methods for influencing gas-saturated oils of various fields. The laboratory samples of ultrasonic and electromagnetic emitters have been developed, with the help of which the oil properties of two fields were studied, the results of which were used in the development of conceptual models of well installations for extending the flow mode in production wells.
Improving the Equipment Efficiency by Using the New Technology for Bulk Material Laying
Authors: Fayzullina Lyaysan Fayzullina , Tumanova Elena Tumanova 
Published: September 2020

Abstract
The article is devoted to increasing the efficiency of using equipment with a solid bulk layer due to the application of the developed technology for dense laying. This technology is applicable for loading solid granular materials, for example, catalysts and adsorbents. The current issue of adsorbent bulk layer compaction in the apparatus for drying associated petroleum gas in the oil field is considered in the article.
The article investigates the hydrodynamics of the gas flow through the adsorbent bulk layer by the computational hydrodynamics method, performed in a specialized software package with finite element analysis, to determine the effective method of laying the material. The numerical calculation results are verified by analytical calculation, and then effective values of the bulk layer porosity are determined. The dependence of the pressure drop in the adsorbent layer on the feedstock flow velocity at the inlet is established.
The dense laying efficiency is confirmed by hydrodynamic modeling, made it possible to develop a new device for bulk material dense laying and the technology for its use in the apparatus. The developed device efficiency has confirmed by experimental studies, expressed by the compaction coefficient.
An industrial device design was developed to increase the industrial equipment efficiency and a verification strength calculation was performed by a stress-strain state modeling method. The technology of the device using in an industrial apparatus has been developed.
The Approbation of Reserves Geochemical Control Technology in Example of AC10 and AC12 Group Formation in Priobskoye Field of LLC Gazpromneft-Khantos
Authors: Morozov Nikita Vladimirovich , Bikkulov Marsel Minullovich , Uchuev Ruslan Pavlovich , Martynov Mikhail Evgenievich , Islamov Ruslan Rishatovich , Shurunov Andrey Vladimirovich , Kalacheva Daria Yurievna 
Published: September 2020

Abstract
In order to improve tools for monitoring the reserves recovery and localization at the Gazprom Neft fields, as part of the technological strategy, a technology for geochemical control of reserves recovery has been developed.
The use of geochemistry methods in identifying the targeted flow of fluids from a reservoir is based on the difference in fluids’ composition and properties from reservoir to reservoir. According to laboratory experiments, the accuracy of the geochemical predictions of miscibility based on a multiple linear regression model varies from 1 to 8% for oils and condensates, from 6% to 18% for gases, and from 15% to 34% for reservoir water (provided there is no pressure maintenance system in a reservoir).
The technology was tested at Priobskoye field of Gazpromneft-Khantos LLC, which jointly operates Zones AS10 and AS12. The pilot program included 5 wells with pre-installed Y-tool assemblies. The advantage of this system is the ability to conduct tests in a well producing in a stable state with induced pressure drawdown. Simultaneous geophysical studies and wellhead sampling for geochemical studies allowed us to confirm matching of the results of dividing the inflow under the conditions of a well draining two or more target zones.
The technology for geochemical control of reserves recovery will allow a breakthrough in the study of wellhead fluid samples in the near future, and such information will increase the success rate and information content of field geophysical studies by an order of magnitude. The advantage of the described technology is 100% coverage of the production well stock and the ability to predict miscibility for all types of fluids (oil, gas, and produced water).
Comprehensive Studies of the Salinized Reservoir Rocks to Expand the Resource Base of the Hydrocarbons in Pripyat Trough
Authors: Grimus Svetlana Ivanovna , Kalejchik Evgenij Albertovich , Soshenko Aleksandr Vasiljevich 
Published: September 2020

Abstract
The article presents the results of the salinized reservoir rocks comprehensive studies, made for the first time at Severo-Domanovichi oil and gas area in Pripyat Trough. The comprehensive studies were carried out in following aspects: the types of rocks salinization and their quantitative parameters were determined; the optimal set of well logging methods was selected to distinguish the salinization intervals and a petrophysical model of the salinized reservoir was constructed. The lithological-facies zoning of pay deposits was completed. Based on the data interpretation on the composition and the density of the injected and associated water, the volumes of halite removal from the well No. 25 Severo-Domanovichskaya were determined. We proposed the method for increasing permeability of a salinized reservoir using the wells of Berezinsky oil field as an example.
Development of Methods for Optimizing the Parameters of the Oil Rim Development System
Authors: Samolovov Dmitriy Alekseevich , Varavva Artem Igorevich , Sandalova Ekaterina Evgenevna , Polkovnikov Fedor Igorevich , Apasov Renat Timergaleevich , Apasov Gaidar Timergaleevich 
Published: September 2020

Abstract
The article is devoted to development of optimization methodology for parameters of oil rims exploitation system by line drive pattern of depletion type horizontal wells. Solution for transformation of flanking oil rim to subjacent oil rim with massive gas cap has been obtained. Moreover, empirical equation which includes gas cone height under exploitation of subjacent oil rim by horizontal well has been also derived. Known analytical solution has been supplemented with derived corrections with a view to convergence of the solution in the case of flanking oil rims. The solution includes set of dimensionless parameters which depend on formation characteristics and economic features of the project. Solution of the problem allows to determine the oil rim profitability without using complicated hydrodynamic computations at the stage of estimation.
Neural Network as a Tool for Predicting and Controlling the Technological Regime of Production Wells
Authors: Vershinin Vladimir Evgenyevich , Ponomarev Roman Yurievich , Strekalov Alexander Vladimirovich 
Published: September 2020

Abstract
The article states the possibility of forecasting the operating modes of production wells through artificial neural networks simulation. The main difficulty in medium- and long-term forecasting is to take into account the influence of adjoining wells and the performance pattern of formations. The flow simulation considers these factors and can be used to teach the artificial neural networks together with the real field data on well operation. The present research paper dwells upon the ways of forming training samples for the artificial neural networks as well as the quality of forecasting operating modes of wells. Training and forecasting of modes was carried out on the data of computational fluid dynamics for the patch with three production and one injection gas well. We compared two types of artificial neural network forecasting capabilities: MLP and LSTM architecture of the recurrent type. We illustrated how qualitative training sample allows forecasting operating modes of well operation with high accuracy over 10 years.
Model Dimensionality Reduction by Upscaling of the Decomposition Spectra of Its Static Parameters
Authors: Rabochiy Pyotr , Shelkov Vasilii , Bogachev Kirill 
Published: September 2020

Abstract
In this paper we propose a novel method of reducing the number of history matching variables required for adequate approximation of static properties associated with reservoir models of hydrocarbons. The method is based on the expansion of the static parameters into discrete orthogonal basis with subsequent parametrization of underling expansion coefficients. The method is demonstrated with application to a simple synthetic example and a sector model of the real oil field. It is shown that utilization of the method described here provides additional degree of model reduction by a factor of ten or more.
Estimation of the Stress Field in a Geological Object Complicated by Disjunctive Dislocations Using Various Approaches
Authors: Yalaev Tagir Rustamovich , Rebetsky Yuri Leonidovich , Kanevskaya Regina Dmitrievna , Kiryachek Vladislav Anatolievich , Pimenov Andrey Andreyevich , Volianskaia Viktoria Vladimirovna 
Published: September 2020

Abstract
In this study various approaches are used to estimate components of the stress fields and the directions of the principal axes of the stress tensor in a geological object complicated by disjunctive disturbances. Two approaches are used: one is the cataclastic analysis method and the other one is finite element method. The initial data for modeling are the results of the interpretation of the seismic cube and the mechanical properties of the layers of the studied object.
Offshore Case: Rapid Assessment the Optimal Parameters for Oil Field Development and Facilities Construction
Authors: Lubnin Alexandr Alekseevich 
Published: September 2020

Abstract
The article covers methodology for rapid assessment of optimal development parameters for offshore fields. The first stage determines maximum allowable expenditures for field construction that make the project efficient, following selection of the offshore facility type required for production. The second stage evaluates the well density for every cost-effective offshore facility considering the best economical option for field development.
Case Studies of Gascondensate Field with Oil Rim Development: Search for Effective Methods of Oil Production from Thin Rims
Authors: Kolbikov Valentinovich Sergey 
Published: September 2020

Abstract
The present work is dedicated to the problem of developing oil and gas condensate pools with thin oil rims for neocomian deposits in the Urengoy region, and to the search for effective methods of oil production from thin rims. The key problems in the development of thin rims are the low cumulative oil production per well, as a result - low profitability and oil recovery ratio. The reasons are known: a sharp decline in initial oil rate due to the rapid increase in water cut and growth of gas factor associated with the water and gas coning.
The results of hydrodynamic modeling at early stage in the development of oil rims often lead to optimistic forecasts that are not confirmed in practice. The paper provides an analysis of the reasons for optimistic calculations, tuning up models for the results of the development and operation of oil wells with different completion relative to the GOC. Obtaining history-matched oil and gas production systems made it possible to obtain a more reliable production forecast for oil wells, to substantiate the preferred target subsea depth for the completed interval in the rim and the type of completion.
Scenarios with the completion of the horizontal section at a distance of one third from the GOC and OWC, or in the middle between the contacts, have been considered and analyzed. A comparison of the calculated performance of the wells with the actual one had been made. An economic evaluation of the operational efficiency of wells drilled on thin rims shows that their profitability based on oil production is marginal. The closer completion intervals of the oil horizontal wells to the GOC the higher economic efficiency of their operation due to additional volumes of gas and condensate production from the gas cap. The use of double-wellbore and multi-lateral completion of horizontal wells in the oil rim increases the economic attractiveness of the project.
The integrated approach proposed in the paper to the organization of production and oil and gas processing systems from such oil wells makes it possible to technologically efficiently operate wells and ensure almost full utilization of associated gas. The joint development of gas condensate pools with thin oil rims allows for the cost-effective development of the ones.
Formation of an Effective Hydrogen Storage in an Aquifer and Control of its Parameters
Authors: Azretovna Abukova Leyla , Nabievich Zakirov Sumbat , Pavlovich Anikeev Daniil , Sumbatovich Zakirov Ernest 
Published: September 2020

Abstract
This article discusses the problem of creating a hydrogen storage in an aquifer. It is assumed that the process of hydrogen injection and the life cycle of its storage should provide the most complete reverse production of the injected gas in a few years. The features of injected gas distribution in an aquifer are considered, taking into account a number of parameters. For example, the effects of gas breaking through a cap rock and fluids migration under influence of natural water flows from aquifers associated with the target reservoir. An effective storage and subsequent production system are proposed allowing to control geometry and volume of gas bubble in the reservoir.
The results are obtained on the basis of large-scale 3D geological and hydrodynamic modeling of filtration through porous medium of a multicomponent system in the form of hydrogen, methane and water mixture on synthetic 3D models. Corresponding studies were performed on a certified hydrodynamic simulator using a composite model.
Large-scale 3D geological and hydrodynamic modeling made it possible to justify the method of compact hydrogen storage in an aquifer. Closed systems, without contact with large volumes of water in adjacent aquifers, do not allow significant gas volumes to be stored under technologically realistic parameters. Presence of an active aquifer dramatically changes injected gas configuration and facilitates its migration from the zone of possible reverse production.
The necessity of creating a permanently operating associated water injection system is substantiated to control geometry of the created hydrogen storage together with methane. It is shown that without controlled injection of water, both at the stage of creating the storage and at the stage of storing hydrogen, it is not possible to ensure its subsequent sufficiently complete production to the surface in a reasonable time with technologically justified costs. Otherwise hydrogen reserves are being scattered due to gas migration over very large distances from gas injection wells. Strong influence of the aquifer system parameters associated with the target reservoir is illustrated for dynamics of hydrogen propagation.
Liquid Loaded Gas Condensate Revitalization by Automated Flow Regime Optimization and Control
Authors: Baranov Vladimir , Rymarenko Konstantin , Nukhaev Marat , Grishchenko Sergey , Karamysheva Tatiana 
Published: September 2020

Summary
The operation of gas wells is often fraught with complications due to water accumulated in the perforation interval and wellbore, and destruction of the bottom-hole zone. These complications drive up pressure losses and decrease operating well flow rates and production capacities of deposits.
This article presents proposals for unburdening gas wells in the Vostochno-Makarovskoye field.
Determination of Suspension Filtration Parameters from Experimental Data
Authors: Fedorov Konstantin Mikhailovich , Shevelev Aleksandr Pavlovich , Kobyashev Alexander Vyacheslavovich , Zakharenko Vladimir Alexandrovich , Kochetov Aleksey Valentinivich , Neklesa Roman Sergeevich , Usoltsev Anton Valeryevich 
Published: September 2020

Abstract
The article is devoted to determining the filtration parameters of a polymer-suspension system based on experimental data on the injection of polymer and suspension into a core sample. A dimensionless mathematical model of the filtration process based on the law of conservation of mass and Darcy's law is presented. Dimensionless characteristics of the filtration process (dimensionless effective viscosity and dimensionless parameter that determines the velocity of the polymer slug) are introduced and calculated. According to experimental data, the formation damage coefficient and the filtration coefficient during suspension injection were determined, which are in satisfactory agreement with the theories of polymer slug filtration and deep bed migration.
From Qualitative Interpretation to Quantitative Analysis: Prediction of Properties of Geological Bodies by Using the Spectral Decomposition Attribute – Case Study of Achimov Turbidity System in West-Siberia
Authors: Volkov Roman Petrovich , Volkov Dmitrii Sergeyevich , Kozhevnikov Georgii Sergeyevich 
Published: September 2020

Abstract
The spectral decomposition attribute map is one of the most representative data for geological and qualitative geophysical interpretation. The specified technique using RGB mixing allows you to confidently map the seismic recording anomalies that do not appear when analyzing the full spectrum of the signal, as well as evaluate the amplitude response for the center frequency of the analyzed range. However, the question arises the applicability of the results of spectral decomposition in the process of quantitative seismic data interpretation.
There are a number of works, such as Widess (1973), J. Gridley and G. Partyka (1997), Butorin A.V. (2016), which indicate the possibility of using the spectral decomposition results when performing a quantitative assessment of the allocated geological objects thicknesses. This task is relevant because it allows you to add additional information extracted from the amplitudes of a limited frequency range at the stage of dynamic interpretation. Along with, an additional advantage of this technique is the possibility of an independent rapid assessment of the quantitative parameters of geological objects.
In this article, we propose an approach for predicting net thickness using spectral decomposition attribute and apply it to the Achimov wedge-shaped complex. These deposits are characterised by a complex distribution of sands and the occurrence of thin-bed sand bodies that are below the seismic resolution limit.
Study of Mechanical Properties and Analysis of Low Temperatures Influence on Flexible Tank Engineering Structural Material Behavior
Authors: Shirieva Nadezhda Sergeevna , Shiriev Artur Kamilevich , Tlyasheva Rezeda Rafisovna , Naumkin Evgeny Anatolyevich 
Published: September 2020

Summary
Drill sites belong to hazardous industrial facilities that require increased attention. In the Arctic and Far North regions drill sites are usually located at considerable distances from industrial centers, emergency response teams (ERTs) and fire houses, in summer they may not have any approaches, and in winter transport communication is ensured only via winter roads and by aircraft transport. When drilling wells significant stock of fuel and lubricants is required to ensure autonomous operation of power-generating equipment. For these purposes various vessel equipment is used including soft (flexible) tanks. When designing these facilities engineering solutions aimed at prevention of accidents and incidents must be sufficient, and equipment with high operation reliability must be selected.
The article classifies loads and actions that occur during tank operation. Study of deformation and strength properties of tank material as a tool for determination of equipment reliability including reliability at low temperature is carried out. An approach to assessment of safe remaining operation life of tanks is proposed.
Comparative calculation of thermal radiation intensity values as a result of fire on tanks at various ambient temperatures is carried out. It is determined that air temperature impacts on range of damage effect active zone in case of accident.
Psychological Safety of Oil and Gas Workers in the South and North of the Russian Federation
Authors: Korneeva Yana Aleskandrovna , Simonova Natalia Nikolaevna 
Published: September 2020

Abstract
The study purpose is to identify and describe the psychological safety features of oil workers in the south and north of the Russian Federation. The study was conducted on an offshore ice-resistant platform, the Caspian Sea, 50 people took part (shift duration - 14 days) and an oil and gas field in the Far North, where 70 people participated (shift duration - 28 days). The research method is a questionnaire. The questionnaire developed by us included the following sections: general information about education and work experience; marital status; subjective assessment of the adverse climatic, geographical, industrial and social factors that affect workers during a shift period; features of the organization of free time during the shift period; subjective assessment of their professional effectiveness and professionalism; subjective risk assessment of various situations that may arise during the shift period; subjective assessment of the danger in the workplace and the factors contributing to its formation.
The results obtained allow us to conclude that for workers of both industrial facilities regarding the feeling of safety during the shift period, production factors and situations play an important role. Climatic and geographical factors enhance the effect of exposure to extreme production conditions. A comparative analysis found that the severity of the hazards in the workplace is higher among employees of the offshore platform. Safety at this facility is limited by a large number of factors that are more intense.