scholarly journals Features of the underground storages construction in depleted oil and gas condensate fields

2020 ◽  
Vol 244 ◽  
pp. 418-427
Author(s):  
Ramiz Gasumov ◽  
Eldar Gasumov ◽  
Yulia Minchenko
Keyword(s):  
Oil And Gas ◽  
Individual Characteristics ◽  
Gas Condensate ◽  
Construction Technology ◽  
Reservoir Properties ◽  
Daily Production ◽  
Geological Conditions ◽  
The Us ◽  
Formation Conditions ◽  
The Individual

The paper considers the features of the underground storages (US) construction in depleted oil and gas condensate fields (DOGCFs). The requirements for the structure of the formation, corresponding to the parameters of the object for possible US creation are presented. The influence of geological, hydrogeological, mining and technical rock formation conditions on the reliability and tightness of underground storages, including underground gas storages, has been evaluated. The necessary conditions for the US design are analyzed at the example of the Ach-Su oil and gas condensate field, in the presence of a well-explored trap with acceptable parameters for the construction of an underground storage. An important aspect is the geological conditions that meet the criteria for selecting the object: the required structure, the absence of fracturing faults, high reservoir properties of the formation, a sufficient volume of the deposit for the storage. Geological conditions lay the basis for determining the individual characteristics of the US construction technology at each DOGCF. The refined results for the current gas-saturated pore volume and the rate of pressure drop in the formation are presented, which makes it possible to select improved technological indicators in the course of  operation of the created US. In order to select the optimal option for the design and construction of the US, the results of economic and geological scenarios analysis were studied concurrently with the capabilities of the technological operation of the object and transport system, which can ensure the maximum daily production of the storage.

Methods for assessing territory pollution by oil or petroleum product spills

2020 ◽  
pp. 140-146
Author(s):  
S. I. Chelombitko ◽  
V. V. Piven
Keyword(s):  
Oil And Gas ◽  
Radiant Energy ◽  
Petroleum Products ◽  
Individual Characteristics ◽  
Oil And Gas Fields ◽  
Northern Regions ◽  
Negative Impacts ◽  
The Individual ◽  
Destructive Processes ◽  
Gas Fields

During the development of oil and gas fields and transportation of hydrocarbons, the ecology of regions is subject to various negative impacts. The most severe consequences for the environment are caused by accidental spills of oil or petroleum products, which occur due to through damage to pipelines. Polluted territories are subject to mandatory reclamation in accordance with government regulations and industry regulations. However, despite the measures taken by the administrations of the northern regions to increase the rate of reclamation of damaged territories in recent years, there has been a trend of growth of areas contaminated with hydrocarbons.Various remediation technologies that have been tested in warm and temperate climates are not very effective in regions with permafrost. Pollution of the daytime surface with oil or petroleum products leads to an increase in the absorption of the sun's radiant energy, the growth of the seasonal thaw layer and the development of destructive processes for the territory. To achieve a positive effect as a result of rehabilitation measures, it is necessary to take into account the individual characteristics of the territory and the extent of its pollution.

scholarly journals RESULTS OF PETROPHYSICAL STUDIES OF THE PRODUCTIVE STRATUM DEPOSITS OF THE BAKU ARCHIPELAGO NORTHERN OIL AND GAS BEARING AREAS

2020 ◽  
pp. 22-27
Author(s):  
V. Sultanov ◽  
L. Sultanov
Keyword(s):  
Granulometric Composition ◽  
Oil And Gas ◽  
Physical Parameters ◽  
Reservoir Properties ◽  
Secondary Porosity ◽  
North West ◽  
Productive Stratum ◽  
Porosity And Permeability ◽  
The Individual ◽  
Lithological Composition

The complex results of petrophysical testing of rocks, taken from prospecting-development wells of Duvanni-deniz, Sangachal-deniz, Bulla-deniz, Garasu and etc. areas, where the sediments of productive stratum are widely expanded, have been given. Average values of granulometric composition of rocks of productive unit of the above areas by the section have been recounted. The problem of dependence of permeability on porosity and depth was solved. Dependence between physical parameters for the individual kinds of rocks, dependence between physical properties and material structures are established. The results of various petrophysical research methods show that the filtration capacitance properties, in general, deteriorate with depth. However, in certain cases, in clay and carbonate rocks, reservoir properties can improve, due to the appearance of secondary porosity under relatively stringent thermobaric conditions. The histograms, which consist of average values of granulometric composition of productive stratum rocks when crossing some places of archipelago are constructed, the problems of dependence of permeability on porosity and depth were solved. The researches showed, that the physical process of the same- named and same-aged features rocks change in the result of geological-physical processes, getting different values. It's noticed, that the porosity and permeability are increasing from north-west to south-east by changing lithological composition.

scholarly journals The features of the geological structure of the Verkhnechonsky oil and gas condensate field and their influence on the field development and operation system

2020 ◽  
Vol 43 (3) ◽  
pp. 350-363
Author(s):  
L. A. Rapatskaya
Keyword(s):  
Oil And Gas ◽  
Horizontal Wells ◽  
Geological Structure ◽  
Field Structure ◽  
Gas Condensate ◽  
Reservoir Properties ◽  
Reservoir Water ◽  
Horizontal Drilling ◽  
Development System ◽  
Field Development

The study aims to analyze the relationship between the redetermination of the complexity of the geological structure of the Verkhnechonsky oil and gas condensate field and the schedule adjustment of the field development plans. The paper uses the data on the exploration and production wells obtained from the pilot operation of JSC Verkhnechonskneftegaz, the geophysical work results, and the research materials publicly available in the press. The geological structure of the Verhnechonskoye oil and gas condensate field is unique in its complexity. This is due to the following factors: a combination of tectonic disturbances accompanied by the intrusion of traps; high mineralization of the reservoir water; sharp variability of the filtration and reservoir properties of the producing horizons by area and section due to the unevenness of the lithological composition of the reservoirs, their salinization and complete pinch-out. The development system of any field should take into account the peculiarities of the field’s tectonic and lithological-facies structure, and meet specific technical and economic requirements for drilling and operating wells. The complexity of the field structure requires a thorough selection of a development system that inevitably changes as the features of the field structure are studied, e.g. vertical drilling suggested at the initial stage of the filed development was shortly after replaced with inclined-horizontal drilling with the calculation of two options. Within the pilot operation project of the Verkhnechonsky field, JSC Verkhnechonskneftegaz has developed two variants of uniform grids of directional and horizontal wells with pattern flooding for the most explored deposits of the Verkhnechonsky horizon of blocks I and II. Because of the intensive processes of the reservoirs’ secondary salinization, the flooding method required a study of the reservoir water composition. However, the proposed drilling plan using a downhole engine and gamma-ray logging could not ensure the wellbores ducting through the most productive sections of the horizon, therefore, the flow rates of some directional and horizontal wells were not high enough. To increase the drilling efficiency, the specialists of the Drilling Department (JSC Verhnechonskneftegaz), together with the Department of Geology and Field Development (Schlumberger Ltd.), proposed a new methodology that increases the drilling efficiency by using a rotary-controlled system, logging-while-drilling, and geosteering. Thus, the development system of the Verkhnechonsky oils and gas condensate field was changing in the process of specifying the field’s geological structure, anisotropy reservoir properties, and the thickness of the producing horizons in size and cut, their salinization and pinch-out, and the composition of the reservoir waters.

scholarly journals Approaches to increasing well productivity in the development of the Bovanenkovo oil and gas condensate field

2019 ◽  
pp. 88-99
Author(s):  
E. V. Panikarovskii ◽  
V. V. Panikarovskii ◽  
A. B. Tulubaev ◽  
D. N. Klepak
Keyword(s):  
Oil And Gas ◽  
Gas Condensate ◽  
Yamal Peninsula ◽  
Reservoir Pressure ◽  
Treatment Technology ◽  
Reservoir Properties ◽  
Recoverable Reserves ◽  
Optimal Technology ◽  
Water Cut ◽  
The Yamal Peninsula

A large number of gas and gas condensate fields are located in the West Siberian mega-province and, to increase gas and gas condensate production levels, deposits located on the Yamal Peninsula should be introduced into development. Deposits of the Yamal Peninsula are complex-built deposits, Neocomian and Jurassic deposits have abnormally high reservoir pressure with a reservoir temperature of more than 100 ° C.  The Bovanenkovo oil and gas condensate field is the largest in terms of gas reserves in the Yamal Peninsula; on this example, in this article we will study the issues of restoring the reservoir properties of reservoir rocks and increasing the flow of hydrocarbons.  To select the optimal technology and composition for conducting water shutoff treatment, it is necessary to take into account the following factors: which reservoirs represent the reservoir, the percentage of water cut in the recoverable reserves, the tightness of the production string, the current flow rate of the well during operation at constant reservoir pressure, because each field needs an individual approach with a choice suitable water shuto-ff treatment technology.  

Invert-emulsion drilling fluids for exposing Hamakin horizon of the Vostochno-Alinskoye oil and gas condensate field

2020 ◽  
pp. 44-53
Author(s):  
V. A. Parfiryev ◽  
Yu. V. Vaganov ◽  
N. N. Zakirov
Keyword(s):  
Oil And Gas ◽  
Geological Structure ◽  
Gas Condensate ◽  
Drilling Fluids ◽  
Oil Well ◽  
Eastern Siberia ◽  
Reservoir Properties ◽  
Recovery Coefficient ◽  
Invert Emulsion ◽  
Drilling Muds

The article is devoted to an analysis of the oil well construction in the fields of the Talakan group of Eastern Siberia. The low quality of the construction of oil wells is explained based on geological structure of the reservoir and the conditions of its formation, particulary, the complications encountered during drilling are given. Based on the analysis, it was found that the use of traditional monosalt and salt-saturated drilling muds is not effective enough to simultaneously solve the problems of exposing intervals of salt deposits and high-quality primary exposing of reservoirs. Based on the literature data analysis and the experience of building the first exploratory wells in Eastern Siberia, the use of hydrocarbon-based flushing liquids is justified. As a result of theoretical and laboratory studies, the compositions of invert-emulsion drilling fluids are proposed of hydrocarbons, which are available in the conditions of fields in Eastern Siberia. The results of studies for determining the effect of flushing fluids on the reservoir properties of the V10 reservoir of the Vostochno-Alinskoye oil and gas condensate field showed that recovery of core permeability after exposure to hydrocarbon-based flushing liquid was on average 90 %, which is significantly higher compared to the effect of water-based drilling muds, where the recovery coefficient is 23 %.

scholarly journals DEVELOPMENT OF METHODS OF INCREASING OIL RECOVERY OF FIELDS IN THE CHECHEN REPUBLIC

2021 ◽  
Author(s):  
А.А. Умаев ◽  
А-М.Б. Измаилов ◽  
Т-А.У. Мусаев ◽  
А.Ш. Халадов
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
Gas Production ◽  
North Caucasus ◽  
Reservoir Properties ◽  
Oil And Gas Production ◽  
The North ◽  
Geological Conditions ◽  
Temperature And Pressure ◽  
The Impact

Наряду с совершенствованием эксплуатации скважин и повышением продуктивности за счет работ по воздействию на призабойную зону пласта, одним из главных вопросов является повышение нефтеотдачи пласта. Актуальность этих вопросов не вызывает сомнения применительно к месторождениям Северного Кавказа. Особенные геологическиеусловия присущие продуктивным пластам Чеченской республики (большая глубина залегания, высокая температура и давление, неоднородность коллекторских свойств и т.д.) затрудняют или полностью исключают возможность применения известных методов физико-химического воздействия на пласты с целью интенсификации отборов нефти и повышения нефтеотдачи. На нефтегазодобывающих объектах ЧР применялись основные физико-химические, тепловые и гидродинамические методы повышения нефтеотдачи пластов Along with improving the operation of wells and increasing productivity due to the work on the impact on the bottomhole formation zone, one of the main issues is the increase in oil recovery. The relevance of these issues does not raise doubts in relation to the fields of the North Caucasus. The special geological conditions inherent in the productive formations of the Chechen Republic (large depth, high temperature and pressure, heterogeneity of reservoir properties, etc.) make it difficult or completely exclude the possibility of using known methods of physicochemical treatment of formations in order to intensify oil production and increase oil recovery. The main physical, chemical, thermal and hydrodynamic methods of enhanced oil recovery were used at oil and gas production facilities in the Chechen Republic

INTRODUCTION OF TAX ON ADDITIONAL INCOME FROM EXTRACTION OF HYDROCARBON RAW MATERIALS AS FINISHING A TAX MANEUVER IN THE OIL AND GAS SPHERE

2020 ◽  
Vol 3 (3) ◽  
pp. 41-45
Author(s):  
G. N. SEMENOVA ◽  
Keyword(s):  
Oil And Gas ◽  
Raw Materials ◽  
Individual Characteristics ◽  
Oil And Gas Fields ◽  
Tax Exemptions ◽  
The Russian Federation ◽  
The Individual ◽  
Gas Fields ◽  
Additional Income ◽  
Universal Mechanism

The article discusses the features of the tax on additional income from the extraction of hydrocarbon raw materials (VAT) introduced since 2019, which takes into account the potential for tax exemptions in connection with the profitability of a particular subsoil block and the established rate. The introduction of a new tax in the future will ensure an increase in tax revenues in the budget system of the Russian Federation. NPD, taking into account the individual characteristics of deposits and external macroeconomic changes, is intended to become a universal mechanism for extracting economic rents in oil and gas fields.

scholarly journals О ПРОДУКТИВНОСТИ И ПЕТРОФИЗИЧЕСКИХ ХАРАКТЕРИСТИКАХ КОЛЛЕКТОРОВ СЕВЕРНОЙ ЧАСТИ БАКИНСКОГО АРХИПЕЛАГА

2019 ◽  
Vol 1 (9(39)) ◽  
pp. 21-28
Author(s):  
Мухтарова Х. З. ◽  
Насибова Г. Д.
Keyword(s):  
Physical Properties ◽  
Oil And Gas ◽  
Physical Property ◽  
Geological Structure ◽  
Physical Parameters ◽  
Reservoir Properties ◽  
Natural Laws ◽  
Physical Testing ◽  
The Individual ◽  
Gas Bearing

In the article was showed complex results of petro physical testing sample of rocks from taken digging prospecting-development wells which are widen productive unit sediments of the northern part of the Baku arxipelago. An average values of granulometric composition of rocks of productive unit the above areas by the section have been recount. The matter dependence of permeability from porosity and porosity from depth was solved. The research showed that the same named and the same age rocks physical property change at the result of geological- physical process and getting different prices. The reservoir properties of rocks of productive unit have been learned. The physical properties of rocks of productive unit have been shown in the table. The reservoir properties of different type of rocks which take part in the geological structure of oil and gas bearing areas and their spreading conformity to natural laws are shown in the table.Dependence between physical parameters for the individual kinds of rocks, dependence between physical properties and material structures are established.

scholarly journals Transboundary Hydrocarbon Resources: Political and Legal Mechanisms for Preventing International Conflicts

2020 ◽  
Vol 18 (3) ◽  
pp. 23-41
Author(s):  
A. Vylegzhanin ◽  
V. Salygin ◽  
K. Krymskaya
Keyword(s):  
Oil And Gas ◽  
Negative Impact ◽  
Individual Characteristics ◽  
International Conflicts ◽  
Exploration And Exploitation ◽  
Oil And Gas Fields ◽  
Interstate Conflicts ◽  
The Individual ◽  
Gas Fields ◽  
International Instruments

Since hydrocarbon resources found close to the delimitation line between two or more states require special regulation due to its complex and sensitive nature, the states involved have to consider national legislation and applicable international instruments relating to transboundary exploitation, as well as interests of their oil and gas companies. However, when one state unilaterally explores or exploits the deposit from its side of the delimitation line, it ipso facto violates the rights of the other state, thus leading to a potential international conflict, that would take years to settle. The previously practiced method of seizing such deposits on the “first come – first take” basis is currently considered fraught with interstate conflicts. Moreover, this approach is, economically irrational and, without any doubt, bears a greater negative impact on the environment, thus making an agreed regime of transboundary subsoil use more viable. Often coastal states reach an agreement on transboundary activities, that calls for intergovernmental consultations to be held once a particularly transboundary deposit is discovered. It is usually followed by conclusion of contract between operating companies, that addresses all the technical issues of exploration and exploitation of specific field. The existing political and legal mechanisms of transboundary subsoil regulation prove to be successful, especially in previously disputed maritime areas. State practice demonstrates the tendency towards universal agreement-based exploration and exploitation of transboundary hydrocarbon resources. Applicable political and legal mechanisms will presumably evolve and differ from one another depending on the individual characteristics of oil and gas fields in question and areas where the deposits are located.

THE METHODS OF DEVELOPING COMPUTATIONAL THINKING OF STUDENTS WHILE STUDYING THE COURSE "NUMERICAL METHODS" BASED ON BLENDED LEARNING

2019 ◽  
pp. 34-41
Author(s):  
M. M. Klunnikova
Keyword(s):  
Numerical Methods ◽  
Blended Learning ◽  
Computational Thinking ◽  
Individual Characteristics ◽  
Diagnostic Model ◽  
Mathematics Students ◽  
Professional Activities ◽  
Cognitive Component ◽  
Professional Field ◽  
The Individual

The work is devoted to the consideration of improving the quality of teaching students the discipline “Numerical methods” through the development of the cognitive component of computational thinking based on blended learning. The article presents a methodology for the formation of computational thinking of mathematics students, based on the visualization of algorithmic design schemes and the activation of the cognitive independence of students. The characteristic of computational thinking is given, the content and structure of computational thinking are shown. It is argued that a student with such a mind is able to manifest himself in his professional field in the best possible way. The results of the application of the technique are described. To determine the level of development of the cognitive component of computational thinking, a diagnostic model has been developed based on measuring the content, operational and motivational components. It is shown that the proposed method of developing computational thinking of students, taking into account the individual characteristics of students’ thinking, meaningfully based on the theoretical and practical aspects of studying the discipline, increases the effectiveness of learning the course “Numerical methods”. The materials of the article are of practical value for teachers of mathematical disciplines who use information and telecommunication technologies in their professional activities.

Sign in / Sign up

Export Citation Format

Share Document