scholarly journals Applications of optical descriptors for estimating the amount of sulphur in high viscosity petroleum fractions from the Ashalchinsk oil field

2020 ◽  
Vol 64 (11) ◽  
pp. 96-101
Author(s):  
Milana M. Dolomatova ◽  
◽  
Rashid I. Hairudinov ◽  
Ildar R. Hairudinov ◽  
Ella A. Kovaleva ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Refractive Index ◽  
Boiling Point ◽  
Fractional Composition ◽  
High Viscosity ◽  
Oil Field ◽  
Test Method ◽  
Chemical Descriptor ◽  
Oil Fractions ◽  
High Viscosity Oil

The article proposes a predictive mathematical model to determine the concentration of sulphur in hydrocarbon fractions by the boiling point of the fractions and the refractive index determined by the the sodium yellow line. The model allows for non-linearity of changes in the fractional composition and optical properties with an increase in the amount of sulphur in a multicomponent mixture. Due to the complexity of the multicomponent system, the problem to predict the sulphur concentration was solved using multivariate regression analysis. The model was constructed using a physical and chemical descriptor (boiling point) and an optical descriptor (refractive index). The Ashalchinskoye heavy oil was used as an object for research in this work. The Ashalchinskoye field is one of the most promising fields for industrial development of high-viscosity oil in the territory of Republic of Tatarstan. The authors have analyzed the fractional composition and studied the properties of ashalchinsk oil fractions. Methods for determining the fractional composition were carried out according to the ASTM D 2892-18 Standard Test Method for Distillation of Crude Petroleum (15-Theoretical Plate Column) using the fully computer controlled unit "I-Fisher DIST D-2892/5236 CC" in the range from 200 to 400 oC. The refractive index nD20 was determined using an IRF-454B2M multipurpose laboratory refractometer. The sulfur content in oil fractions was determined in accordance with GOST R 51947-02 and ASTM D 4294 by energy dispersive X-ray fluorescence spectroscopy using a sulphur analyzer RX-360SH manufactured by Tanaka Scientific Limited (Japan); for coke residue in accordance with GOST 2059-95 (ISO 351-96) by the POST-2 apparatus manufactured by Millab (Moscow, Russia). In this paper has been made a comparison between the results obtained from regression model and experimental results were for training and testing samples of high-viscosity oil fractions analyzed. Results of numerical studies for Ashalchinsk high-viscosity oil with a high sulphur content demonstrated very good agreement with the experimental data, which suggest adequacy of mathematical model. The data obtained from the model can be used in the preparation of high-viscosity oils for transportation and processing.

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 Investigation of Electrohydraulic Effect on Physicochemical Characteristics of High-Resinous Oil “Karazhanbas”

2020 ◽  
Vol 22 (4) ◽  
pp. 315
Author(s):  
R.Kh. Salakhov ◽  
M. Seitzhanova ◽  
D.U. Bodykov ◽  
L.R. Sassykova ◽  
N.K. Zhakirova ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Hydrocarbon Composition ◽  
13C Nmr Spectroscopy ◽  
Physicochemical Characteristics ◽  
High Viscosity ◽  
Fragment Composition ◽  
Oil Hydrocarbons ◽  
Oil Fractions ◽  
Before And After ◽  
High Viscosity Oil

In order to change the viscosity of high-resinous oil of the “Karazhanbas” field (Kazakhstan), the effect of electrohydraulic action on it was studied. The effect of adding an organic solvent xylene on the rheological properties of oil is investigated. A comparative study of the hydrocarbon composition of oil before and after electrohydraulic impact was carried out by the method of gas chromatographymass spectrometry. Fragment composition of oil hydrocarbons before and after electrohydraulic treatment was determined by 1H and 13C NMR spectroscopy. It is shown that the conversion of heavy oil fractions to light ones begins with a five-time electrohydraulic impact. It is determined that 20‒25 electric discharge pulses are sufficient for the quantitative process of splitting hydrocarbons. It was found that the addition of xylene to high-viscosity oil leads to an increase in the conversion of hydrocarbons under electrohydraulic action. The content of paraffins and naphthalenes in high-viscosity oil is slightly reduced during electrohydraulic processing. In oil, after electrohydraulic action, a decrease in the proportion of protons of long alkyl terminal СН3-groups of hydrocarbons is observed, which indicates the process of decomposition of heavy oil fractions into light fractions.

scholarly journals ASSESSING THE EFFECTIVENESS OF CYCLIC WATERFLOODING IN PK1-3 FORMATION OF THE VOSTOCHNO-MESSOYAKHSKOYE OIL FIELD

2019 ◽  
pp. 59-64
Author(s):  
I. V. Kovalenko ◽  
S. K. Sokhoshko ◽  
O. O. Lyamkina
Keyword(s):  
High Viscosity ◽  
Oil Field ◽  
Vertical Heterogeneity ◽  
High Viscosity Oil

We have estimated the effectiveness of cyclic waterflooding in PK1-3 formation of the Vostochno-Messoyakhskoye oil field. This reservoir is saturated with high-viscosity oil. The obtained data are described in the article. The calculations have been performed on different simulations models with multiple variations of lateral and vertical heterogeneity of the reservoir. The result of our work is the program of cyclic waterflooding research for the VostochnoMessoyakhskoye oil field.

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.

Mathematical Modeling Of Radio-Frequency Electromagnetic And Acoustic Impact On Formation In Combination With Solvent Injection

2015 ◽  
Vol 10 (3) ◽  
pp. 89-96
Author(s):  
Gulnara Izmaylova ◽  
Liana Kovaleva ◽  
Nur Nasyrov
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Radio Frequency ◽  
Acoustic Field ◽  
High Viscosity ◽  
Oil Reservoir ◽  
Rf Heating ◽  
Low Viscosity ◽  
Acoustic Impact ◽  
High Viscosity Oil

We investigate the possibility of increasing the efficiency of extraction of high-viscosity oil combined effect of radio-frequency (RF) electromagnetic (EM) and acoustic fields on the formation and miscible displacement oil solvent. A mathematical model of two-stage impact on the oil reservoir. At the 1st stage, the heating of the formation RF electromagnetic and acoustic field. At the 2nd stage the RF heating of the formation with simultaneous injection of low-viscosity solvent.

scholarly journals ANALYSIS OF DAMAGE ROD STRING COMPONENTS IN SUCKER ROD PUMP IN THE FIELD SS

2018 ◽  
Vol 7 (1) ◽  
pp. 47-55
Author(s):  
Fitrianti Fitrianti ◽  
Anwar Haryono
Keyword(s):  
Heavy Oil ◽  
High Viscosity ◽  
Oil Field ◽  
Stroke Length ◽  
Pump Speed ◽  
Artificial Lift ◽  
Sucker Rod ◽  
Sucker Rod Pump ◽  
High Viscosity Oil ◽  
Viscosity Fluid

Field SS is a Heavy Oil field which means high viscosity oil making it difficult to flow. Therefore, artificial lift was used in this field to help lifting the high viscosity fluid, i.e. sucker rod pump (SRP). In the last several years, problem of the damage to the rod string was frequently occur. Rod string damage is usually indicated by the occurrence of broken or detached components. In order to overcome the damage of rod string components on the sucker rod pump, several parameters that causes rod string damage in 41 well samples in the field SS were analyzed and then recommendations were made as an alternative to minimize the occurrence of rod string damage. After analyzing the parameters that can cause rod string damage on 41 well samples in SS field, the cause of the breakdown of rod string is fluid pounding for 37 samples well, while the causes for 4 samples of other wells is not detected. After that, recommendation efforts is done, like size down pump speed and stroke length for 9 samples of wells, size down pump size and pump speed for 6 samples of wells and size down pump speed for 22 samples well. As for the undetected cause 4 samples of wells, is recommended to do proactive well service.

Pk High Viscosity Oil Reservoirs Development at Van-Yogan Oil Field

2003 ◽  
Author(s):  
P.V. Donkov ◽  
V.A. Leonov ◽  
E.N. Akhatiamova ◽  
F.A. Kanzafarov ◽  
S.G. Kanzafarov
Keyword(s):  
High Viscosity ◽  
Oil Field ◽  
Oil Reservoirs ◽  
High Viscosity Oil
Sign in / Sign up

Export Citation Format

Share Document