scholarly journals Application of an Oil-Displacing Composition for Increasing Flow Rate of Low Producing High-Viscosity Oil Wells of the Usinskoye Oil Field

2016 ◽  
Vol 18 (2) ◽  
pp. 133
Author(s):  
L.K. Altunina ◽  
I.V. Kuvshinov ◽  
V.A. Kuvshinov ◽  
V.S. Ovsyannikova ◽  
D.I. Chuykina ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Oil Production ◽  
High Viscosity ◽  
Oil Field ◽  
Thermal Methods ◽  
Cold Stimulation ◽  
Well Production ◽  
Well Stimulation ◽  
High Viscosity Oil ◽  
Stimulation Of

The results of a pilot application of a chemical composition for enhanced oil recovery developed at the IPC SB RAS are presented. The EOR-composition was tested in 2014 at the Permian-Carboniferous heavy oil deposit at the Usinskoye oil field. It is very effective for an increase in oil production rate and decrease in water cuttings of well production. In terms of the additionally produced oil, the resulting effect is up to 800 tons per well and its duration is up to 6 months. The application of technologies of low-productivity-well stimulation using the oil-displacing IKhNPRO system with controlled viscosity and alkalinity is thought to be promising. This composition is proposed for the cold’ stimulation of high-viscosity oil production as an alternative to thermal methods.

scholarly journals INDUCTION TECHNOLOGY IN HIGH-VISCOSITY OIL PRODUCTION AT TAZOVSKOYE FIELD

2018 ◽  
Vol 15 (30) ◽  
pp. 520-526
Author(s):  
S. G. KONESEV ◽  
P. A. KHLYUPIN ◽  
A. V. GREB ◽  
E. Y. KONDRATIEV
Keyword(s):  
Induction Heating ◽  
Local Heating ◽  
Thermal Action ◽  
Oil Production ◽  
High Viscosity ◽  
Oil Field ◽  
Thermal Methods ◽  
Face Area ◽  
The Face ◽  
High Viscosity Oil

The article addresses viscous and high-viscosity oil production methods that are also relevant to Tazovskoye oil-gas condensate field. Heat-affected zones have been identified to assure the most effective development of the viscous and high-viscosity oil field. Study and patent research results have been used to determine four most effective thermal methods of high-viscosity oil rheological properties con-trol: local heating, co-current heating, local stage heating, and local co-current heating. Existing thermal systems for the implementation of these thermal methods have been analyzed and electrothermal systems based on induction technology have been chosen. The efficiency of induction technology is due to a high range of the thermal flow formed and implementation of two modes: temperature maintenance and emergency heating. Local heating may be ensured by an induction downhole heater of the face area or an induction electric steam generator for the thermal action not only on the face area, but the entire producing formation. A heating device has been proposed based on results of the patent research of induction heating systems for high-viscosity oil. A versatile magnet-operated component has been proposed as a heating body of the induction heating system.

scholarly journals SPECIFICS OF VISCOUS OIL PRODUCTION USING A DRAIN-HOLE WELL

2016 ◽  
pp. 114-119
Author(s):  
I. V. Chizhov
Keyword(s):  
Oil Recovery ◽  
Oil Production ◽  
High Viscosity ◽  
Viscous Oil ◽  
Drain Hole ◽  
High Viscosity Oil

The article is devoted to the problem of increasing the efficiency of high viscosity oil recovery from low permeable beds.

Improvement of the Working Conditions of Oil Miners during the Transition from the Thermoshaft Method of High-Viscosity Oil Production to the Modular Mine Method of the Yaregskoye Field Development

2020 ◽  
pp. 58-65
Author(s):  
A.I. Fomin ◽  
◽  
T.V. Grunskoy ◽  
◽  
Keyword(s):  
Working Conditions ◽  
Occupational Diseases ◽  
Injury Rate ◽  
Oil Production ◽  
High Viscosity ◽  
Oil Field ◽  
Mining Operations ◽  
Field Development ◽  
Mine Workings ◽  
High Viscosity Oil

The need for high-viscosity oil production in the fields of the Russian Federation is substantiated. The technology of high-viscosity oil production by the thermoshaft method is considered, harmful and hazardous factors at the workplaces of the underground group workers are identified, first of all, the microclimate parameters (increased air temperature of the working area), which effect on the formation of occupational diseases and an increase in the risk of injury to the personnel. The main problems associated with the imperfection of the technology of the thermoshaft method for the extraction of high-viscosity oil, which effect on the safety of conducting operations for the extraction of heavy oil, are investigated, and presented. The options of opening up a high-viscosity oil field with a modular mine, which allows to normalize the thermal regime in mine workings, improve working conditions of the oil miners, reduce the level of occupational diseases and injury rate, reduce the volume of work and the costs of mining operations and maintenance of the mine workings, are considered. The system for the development of the Yaregskoye field of high-viscosity oil with the division of the mine field into separate production blocks using a sectional ventilation scheme, which provides for independent ventilation of each module due to the construction of an air supply and air exhaust shafts in each block-module of the mine is proposed in the article. The surface and underground complex of shafts for the construction of a modular mine is presented. The calculation is carried out and the results of technical solutions for airing various modifications of mini — mines are given. The drilling gallery was designed, which is typical for all the options of opening. In the designed modular mines, a closed oil gathering system is proposed. Comparative economic analysis showed the efficiency of the development of new areas of the Yaregskoye high-viscosity oil field using the construction of modular mines.

The heat exchange intensification under incomplete hydrophobization oil reservoirs

2019 ◽  
Vol 5 (4) ◽  
pp. 58-78
Author(s):  
Rustam Sh. Salikhov ◽  
Ruslan F. Mazitov ◽  
Yuriy V. Pacharukov
Keyword(s):  
Oil Recovery ◽  
Layer Structure ◽  
Adsorbed Layer ◽  
Mathematic Model ◽  
High Viscosity ◽  
Limiting Factor ◽  
Surface Acting ◽  
Thermal Methods ◽  
Acting Agent ◽  
High Viscosity Oil

High-viscosity oil recovery often requires thermal methods of enhanced oil recovery combining surface acting agent (SAA) injection. Thermal treatment allows increasing hydrocarbon movability. Efficiency raisings’ limiting factor of this method includes injecting agent’s thermal loss (water and steam) as well as SAA molecules thermal destruction. This article assesses nanoparticles adding in SAA water solution’s influence. The authors consider a theoretic capability of increasing heat exchange’s inetnsity between oil reservoir and injected agents by means of adding nanoparticles as well as increase of the SAA thermostability’s capability under high temperatures influence. The results of the laboratory experiments on SAA’s adsorbed layer structure on the surface of solid state show the structure’s dependence on SAA concentration in the solution. According to the developed mathematic model, a periodic adsorbed field will lead to the increase of heat transfer coefficient by means of the Nusselt number increment. This will allow increasing efficiency of thermal methods EOR application.

Analysis of solutions of the Muskat — Leverett non-isothermal model for different types of oils

2020 ◽  
pp. 26-37
Author(s):  
O. B. Bocharov ◽  
I. G. Telegin
Keyword(s):  
Oil Recovery ◽  
High Viscosity ◽  
Oil Field ◽  
Hot Water ◽  
Oil Viscosity ◽  
Isothermal Model ◽  
Total Heat Loss ◽  
Low Viscosity ◽  
Different Types ◽  
High Viscosity Oil

In this article, numerical methods are used to analyze the features of solutions to the non-isothermal Muskat — Leverett two-phase filtration model. The structure of solutions to thermal waterflooding problems for low-viscosity and high viscosity types of oil is considered. Typical solutions for different types of functional parameters of the model are shown. The simulations show that hot water displacement of high-viscosity oil is an effective method of increasing oil recovery. In particular, if in the case of thermal flooding the reservoir with low-viscosity oil, recovery increases by only a few percent, then for a field with high viscosity oil, thermal flooding increases oil recovery by tens of percent. It is shown that in order to increase the efficiency of the thermal flooding it is necessary to pump hot water with the minimum possible capillary parameter. High total filtration rate reduces total heat loss through the roof and sole of the formation. Numerical experiments have shown that for an adequate simulation of thermal flooding, in addition to taking into account changes in oil viscosity, it is necessary to take into account the action of capillary forces and the variation of relative phase permeability during the operation of the oil field.

scholarly journals Numerical 3D simulation of enhanced oil recovery methods for high-viscosity oil field

2021 ◽  
Vol 1019 ◽  
pp. 012050
Author(s):  
M G Persova ◽  
Y G Soloveichik ◽  
A S Ovchinnikova ◽  
I I Patrushev ◽  
A V Nasybullin ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
High Viscosity ◽  
Oil Field ◽  
3D Simulation ◽  
High Viscosity Oil ◽  
Recovery Methods

scholarly journals EXPERIMENTAL SUPPORT OF FIELD TRIAL ON THE POLYMER FLOODING TECHNOLOGY SUBSTANTIATION IN THE OIL FIELD OF WESTERN KAZAKHSTAN

2020 ◽  
Vol 17 (35) ◽  
pp. 663-677
Author(s):  
Gulnaz MOLDABAYEVA ◽  
Raikhan SULEIMENOVA ◽  
Akmaral KARIMOVA ◽  
Nurken AKHMETOV ◽  
Lyailya MARDANOVA
Keyword(s):  
Oil Recovery ◽  
High Viscosity ◽  
Polymer Flooding ◽  
Oil Field ◽  
Dynamic Heterogeneity ◽  
Field Development ◽  
Western Kazakhstan ◽  
Technological Efficiency ◽  
Water Cut ◽  
High Viscosity Oil

One of the chemical methods of stimulating the reservoir to increase the efficiency of the oil field development process is polymer flooding. This article conducted a feasibility study of the effectiveness of the application of polymer flooding technology in one field in Western Kazakhstan. This field is characterized by high viscosity of reservoir oil, water cut, and dynamic heterogeneity of the reservoir. World experience in the application of polymer flooding in analogous fields shows high technological efficiency. Presented results of the analysis of the experience of applying technology in analogous fields, physicochemical studies of polymers, filtration studies on bulk models, hydrodynamic modeling of polymer flooding and the expected cost-effectiveness of introducing the technology, as applied to the conditions of the Karazhanbas oil field with high viscosity of reservoir oil. The analysis based on the experience of applying polymer flooding in high-viscosity oil fields, laboratory studies and estimated calculations of the expected production in the sector geological and hydrodynamic model shows a decrease in water cut, an increase in oil production, and an increase in current and final oil recovery.

Designing the Thermal Enhanced Oil Recovery as a Key Technology of High Viscosity Oil Production

2021 ◽  
Author(s):  
Mukhtar Shakenuly Shaken ◽  
Baurzhan Yerikovich Zhiyengaliyev ◽  
Altynbek Suleymenuly Mardanov ◽  
Adil Sultangaliyevich Dauletov
Keyword(s):  
Oil Recovery ◽  
Hydrodynamic Model ◽  
Oil Production ◽  
Horizontal Wells ◽  
High Viscosity ◽  
Oil Reservoirs ◽  
Production Rates ◽  
Cyclic Steam Stimulation ◽  
High Viscosity Oil ◽  
Steam Stimulation

Abstract Due to the decrease in "easy" oil reserves, oil companies are focusing on "hard-to-recover" reserves, in particular, high-viscosity oil reservoirs. Shallow oil reservoirs are mainly concentrated in the Cretaceous horizons, in the western region of the country, along the Caspian coast. One of them is a high-viscosity oil reservoir, consisting of three Cretaceous horizons. The average viscosity of oil in reservoir conditions is around 746.7 cP. The current achieved oil production is only 5% of the initial recoverable reserves, and designed oil recovery factor is 38% and implies the full-scale application of thermal methods of EOR. The objective of this work was to choose the most suitable thermal method of EOR and to assess the prospects of applicability with the calculation of economic feasibility. Considering the geological features of the reservoir, the cyclic steam stimulation was chosen as the optimal method to increase oil recovery. In order to assess the expediency of this technology, was initiated project on thermal modeling the technology based on the current geological and hydrodynamic model of the field, using the results of laboratory studies, calculations were performed on imagined horizontal wells, and carried out the analysis of technical and economic efficiency. According to the results of calculations on the hydrodynamic model, the production rates using the technology of cyclic steam stimulation in horizontal wells are 30% higher than the production rates of "cold production", and the difference in accumulated oil production over 5 years will be 20–30%.

scholarly journals Combined Well Treatment with Various Chemical Compositions and Thermal Methods

2019 ◽  
pp. 473-482
Author(s):  
Ivan V. Kuvshinov ◽  
Liubov K. Altunina ◽  
Vladimir A. Kuvshinov
Keyword(s):  
Oil Recovery ◽  
Water Injection ◽  
Field Tests ◽  
High Viscosity ◽  
Komi Republic ◽  
Oil Field ◽  
Hot Water ◽  
Chemical Compositions ◽  
Thermal Methods ◽  
Combined Application

This paper presents the field tests results of the combined application of chemical compositions with various functional purposes, gel-forming, intensifying and oil-displacing, in combination with thermal methods of oil recovery. A complex application, in combination with other technologies, of an acid oil-displacing and intensifying composition with prolonged action based on surfactants, inorganic acid adducts and polyatomic alcohol is considered. Field tests were carried out on the Permian- Carboniferous reservoir of the Usinsk high-viscosity oil field, Komi Republic, Russia. The results of two treatments are presented: a hot water injection horizontal well and a production cyclic steam stimulated (CSS) well. It is concluded that it is necessary to combine various methods of enhanced oil recovery to achieve higher efficiency

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