scholarly journals Development of new electrical technological systems and complex in the production of hard-to-remove oil reserves

2021 ◽  
pp. 125-137
Author(s):  
P.A. Khlyupin ◽  
◽  
R.T. Khazieva ◽  
A. Vahedi ◽  
◽  
...  
Keyword(s):  
Effective Means ◽  
Electrical Energy ◽  
Salt Precipitation ◽  
Technological Systems ◽  
Thermal Methods ◽  
Heating Systems ◽  
Oil Reserves ◽  
Christmas Trees ◽  
Salt Deposits ◽  
Hydrocarbon Reserves

When developing hard-to-recover hydrocarbon reserves, enterprises use various complexes and systems to facilitate technological processes that contribute to the lifting of heavy and viscous oils to the surface, as well as the extraction of light oils from lowpermeability reservoirs. During the operation of fields, abnormal situations also arise, caused by the appearance of asphalt-resin-paraffin deposits (ARPD) and salt deposits on the walls of tubing pipes, Christmas trees, process pipelines and equipment at the bottom. The existing methods of combating and preventing the manifestations of ARPD and salt precipitation can be conditionally divided into mechanical, chemical, thermal. To prevent and combat ARPD, as well as to reduce the viscosity of produced oils, thermal methods are most preferred, among which electrothermal methods are considered effective. In the case of salt sediments, technologies based on electrical energy are also an effective means of prevention, in particular, exposure of the well emulsion to a magnetic field. Keywords: electrical technological systems and complexes; hard-to-remove oil reserves; asphalt-resin-paraffin deposits; induction heating systems.

scholarly journals Modeling the production of hard-to-recover oil reserves using thermal methods

2021 ◽  
Vol 1064 (1) ◽  
pp. 012062
Author(s):  
A A Gizzatullina ◽  
T N Minnivaleev ◽  
I Sh Mingulov
Keyword(s):  
Thermal Methods ◽  
Oil Reserves

scholarly journals Enhanced Oil Recovery Using CO2 in Alaska

Geosciences ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 98
Author(s):  
Banabas Dogah ◽  
Vahid Atashbari ◽  
Mohabbat Ahmadi ◽  
Brent Sheets
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Comprehensive Overview ◽  
Thermal Methods ◽  
Oil Reserves ◽  
Viscous Oil ◽  
Co2 Eor ◽  
Permafrost Thawing ◽  
Petroleum Reserves ◽  
Shallow Reservoirs

Alaska holds more than 68 billion barrels of proved oil reserves and more than 36.7 trillion cubic feet of proved natural gas reserves with some special conditions such as proximity to permafrost, making Alaskan petroleum reserves unique. The low temperature in shallow reservoirs prohibited hydrocarbons’ ideal maturation, thereby generating several heavy and viscous oil accumulations in this state. This also limits the enhanced oil recovery (EOR) options, leaving the thermal methods off the table to avoid permafrost thawing, which can cause wellbore collapse. Several solutions have been attempted for improving oil production from heavy and viscous oil in Alaska; however, they have not yielded the desired recovery, and ultimate recovery factors are still less than the global average. One solution identified as a better alternative is using CO2 as an injecting fluid, alternated by water or mixed with other injectants. This paper provides a comprehensive overview of all studies on using CO2 for enhanced oil recovery purposes in Alaska and highlights common and unique challenges this approach may face. The suitability of CO2-EOR methods in the Alaskan oil pools is examined, and a ranking of the oil pools with publicly available data is provided.

scholarly journals Variable Porous Electrode Compression for Redox Flow Battery Systems

Batteries ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 53 ◽  
Author(s):  
Nicholas Gurieff ◽  
Victoria Timchenko ◽  
Chris Menictas
Keyword(s):  
Large Scale ◽  
Effective Means ◽  
Porous Electrode ◽  
Cost Effective ◽  
Electrical Energy ◽  
Limiting Current ◽  
Great Promise ◽  
Full Potential ◽  
Uniform Compression ◽  
Novel Concept

Vanadium redox flow batteries (VRFBs) offer great promise as a safe, cost effective means of storing electrical energy on a large scale and will certainly have a part to play in the global transition to renewable energy. To unlock the full potential of VRFB systems, however, it is necessary to improve their power density. Unconventional stack design shows encouraging possibilities as a means to that end. Presented here is the novel concept of variable porous electrode compression, which simulations have shown to deliver a one third increase in minimum limiting current density together with a lower pressure drop when compared to standard uniform compression cell designs.

Iranian dissent will slow promised Caspian Sea accord

2018 ◽  
Keyword(s):  
Caspian Sea ◽  
Working Group ◽  
Belt And Road Initiative ◽  
Transport Networks ◽  
The Caspian Sea ◽  
Content Type ◽  
Oil Reserves ◽  
Belt And Road ◽  
Legal Position ◽  
Hydrocarbon Reserves

Subject Talks to decide the Caspian Sea's status. Significance A working group representing the five states around the Caspian Sea meets this month to prepare for a summit promised before July. The littoral states are said to be close to agreeing the legal position of the sea, but Iran's assent is far from certain. Impacts A Caspian convention will not solve contested claims to mid-sea oil reserves. Environmental protection could end up being sacrificed to the exploration and development of untapped hydrocarbon reserves. Trans-Caspian shipping will be boosted by its role in the Eurasian transport networks of China's Belt and Road initiative.

scholarly journals DYNAMICS OF OIL PRODUCTION FROM HARD RESERVES IN RUSSIA

2021 ◽  
Vol 2 (4) ◽  
pp. 294-301
Author(s):  
Mikhail V. Mishenin
Keyword(s):  
Geological Exploration ◽  
Resource Base ◽  
Oil Reserves ◽  
Current State ◽  
Federal Districts ◽  
The Russian Federation ◽  
The Cost ◽  
Development Prospects ◽  
Hydrocarbon Reserves

The article presents a comprehensive study of the current state and development prospects of hard-to-recover reserves. The role of hard-to-recover reserves in the structure of the crude oil base by categories of reserves and federal districts, as well as on the shelf of the Russian Federation is considered. The analysis of industry-wide trends in the reproduction of the mineral resource base with differentiation by deposits and companies-subsoil users is carried out. The issues of the current state of the volume of financing for geological exploration and the cost of preparing hydrocarbon reserves have been investigated. The dynamics of the distribution of recoverable oil reserves, volumes and efficiency of geological exploration at fields discovered in recent years have been analyzed. The characteristics and dynamics of production of certain categories of hard-to-recover oil by region have been investigated.

scholarly journals Geothermal resources of Kamchatka and the nearest prospects of their development

2019 ◽  
pp. 50-65
Author(s):  
A. V. Kiryukhin ◽  
V. M. Sugrobov
Keyword(s):  
Heat Generation ◽  
Heat Supply ◽  
District Heating ◽  
Electrical Energy ◽  
Heat Consumption ◽  
Electrical Performance ◽  
Geothermal Resources ◽  
Heating Systems ◽  
District Heating Systems

The forecast geothermal resources of Kamchatka are sufficient to generate 3900 MW of electrical energy. The same resources for heat supply are estimated at a capacity of 1350 MWt (thermal). Thermohydrodynamic TOUGH2 modeling of exploitation of already identified productive hydrogeothermal reservoirs with installed energy properties allows us to predict: 1) the possibility of increasing the electrical performance of already operating areas of the Mutnovsky field up to 105 MW and the Pauzhetsky field up to 11 MW using binary technologies; 2) the possibility of increasing heat generation at the Paratunskoye field with submersible pumps up to 216 MWt, which will fully ensure the heat consumption of the district heating systems of Petropavlovsk-Kamchatsky.

scholarly journals Effects of implementation of co-generation in the district heating system of the Faculty of Mechanical Engineering in Nis

2010 ◽  
Vol 14 (suppl.) ◽  
pp. 41-51 ◽  
Author(s):  
Mladen Stojiljkovic ◽  
Mirko Stojiljkovic ◽  
Bratislav Blagojevic ◽  
Goran Vuckovic ◽  
Marko Ignjatovic
Keyword(s):  
Natural Gas ◽  
Energy Savings ◽  
Boiler House ◽  
District Heating ◽  
Electrical Energy ◽  
Heating System ◽  
Primary Energy ◽  
District Heating System ◽  
Heating Systems ◽  
District Heating Systems

Implementation of co-generation of thermal and electrical energy in district heating systems often results with higher overall energy efficiency of the systems, primary energy savings and environmental benefits. Financial results depend on number of parameters, some of which are very difficult to predict. After introduction of feed-in tariffs for generation of electrical energy in Serbia, better conditions for implementation of co-generation are created, although in district heating systems barriers are still present. In this paper, possibilities and effects of implementation of natural gas fired cogeneration engines are examined and presented for the boiler house that is a part of the district heating system owned and operated by the Faculty of Mechanical Engineering in Nis. At the moment, in this boiler house only thermal energy is produced. The boilers are natural gas fired and often operate in low part load regimes. The plant is working only during the heating season. For estimation of effects of implementation of co-generation, referent values are taken from literature or are based on the results of measurements performed on site. Results are presented in the form of primary energy savings and greenhouse gasses emission reduction potentials. Financial aspects are also considered and triangle of costs is shown.

scholarly journals Comparison of Different Solar Thermal Energy Collectors and Their Integration Possibilities in Architecture

2017 ◽  
Vol 2 (1) ◽  
pp. 36 ◽  
Author(s):  
Humam Kayali ◽  
Asst. Professor Dr. Halil Alibaba
Keyword(s):  
Flat Plate ◽  
Electrical Energy ◽  
Solar Panel ◽  
Solar Thermal ◽  
The Sun ◽  
Solar Panels ◽  
Solar Thermal Energy ◽  
Thermal Systems ◽  
Heating Systems ◽  
Electricity Grids

Solar energy is becoming an alternative for the limited fossil fuel resources. One of the simplest and most direct applications of this energy is the conversion of solar radiation into heat, which can be used in water heating systems. A commonly used solar collector is the flat-plate. A lot of research has been conducted in order to analyze the flat-plate operation and improve its efficiency. The solar panel can be used either as a stand-alone system or as a large solar system that is connected to the electricity grids. The earth receives 84 Terawatts of power and our world consumes about 12 Terawatts of power per day. We are trying to consume more energy from the sun using solar panel. In order to maximize the conversion from solar to electrical energy, the solar panels have to be positioned perpendicular to the sun. Thus the tracking of the sun’s location and positioning of the solar panel are important. The main goal of this article is explaining all the solar thermal systems available and the integration possibilities with comparisons for better usages and integration process into design.

scholarly journals MONITORING SYSTEM FOR ELECTRICAL ENERGY PARAMETERS IN A ROMANIAN PRE-UNIVERSITY EDUCATION INSTITUTION

2018 ◽  
Vol 18 (1) ◽  
pp. 59-67
Author(s):  
S. Orboiu ◽  
C. Trocan ◽  
H. Andrei
Keyword(s):  
Electricity Consumption ◽  
Education Institution ◽  
Electrical Energy ◽  
Green Energy ◽  
Public Institutions ◽  
University Education ◽  
Pv System ◽  
Heating Systems ◽  
Entire Energy ◽  
Entire Society

Abstract A desideratum of the society, not only in Romania, is the efficiency of the electricity consumption and its passage on green energy in a bigger proportion. This can be achieved by research on various topics chosen from different areas of the economy. One of the most widespread public institutions is education, which is why the results obtained from the research of such a subject can bring major benefits to the entire society. In general, the structure of pre-university education institutions is similar, with classrooms, laboratories equipped with the same types of electric consumers, and very close heating systems. This article proposes a method of monitoring the electrical energy and consumption parameters of a pre-university education institution in Romania. The results obtained are compared to the energy quality standards and will be the basis for a PV system that will be designed to ensure the entire energy consumption of the institution.

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