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

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.

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Effective EOR methods in high-viscosity oil fields: cyclical GEL-polymer flooding and ASP flooding

Kazakhstan journal for oil & gas industry ◽

10.54859/kjogi88927 ◽

2021 ◽

Vol 3 (3) ◽

pp. 61-74

Author(s):

F. E. Safarov ◽

S. Yu. Lobanova ◽

B. Ye. Yelubaev ◽

N. E. Talamanov ◽

Sun Zhijian ◽

...

Keyword(s):

Oil Recovery ◽

High Viscosity ◽

Polymer Flooding ◽

Oil Field ◽

Oil Fields ◽

Tracer Studies ◽

Asp Flooding ◽

Reservoir Conditions ◽

High Viscosity Oil ◽

Pilot Tests

The presented work discusses increasing oil recovery factor using physicochemical EOR methods. This article presents the field pilot tests results related to cyclical gel polymer flooding technology as applied under the conditions productive reservoirs rich in high-viscosity oils (viscosity in reservoir conditions above 300 mPa s) of the Buzachi North oil field, extending the boundaries of application of these methods. The work used the methods of hydrodynamic modeling, mathematical analysis; the necessary parameters of fractures and super reservoirs for calculating the working volumes of the injected compositions were estimated using tracer studies.

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Cyclical Gel-Polymer Flooding Technology is an Effective Method of Enhanced Oil Recovery in High-Viscosity Oil Fields

10.2118/201824-ms ◽

2020 ◽

Author(s):

Svetlana Yur’evna Lobanova ◽

Berdibek Ulanovich Yelubaev ◽

Nikolay Evgen’evich Talamanov ◽

Zhijian Sun ◽

Chunxi Wang ◽

...

Keyword(s):

Enhanced Oil Recovery ◽

Oil Recovery ◽

High Viscosity ◽

Polymer Flooding ◽

Oil Fields ◽

High Viscosity Oil

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

Eurasian Chemico-Technological Journal ◽

10.18321/ectj452 ◽

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.

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Adaptability Evaluation of Polymer Flooding for Zahra Oil Field

The Open Chemical Engineering Journal ◽

10.2174/1874123101509010007 ◽

2015 ◽

Vol 9 (1) ◽

pp. 7-13

Author(s):

Peng Lv ◽

Mingyuan Li ◽

Meiqin Lin ◽

Bo Peng ◽

Zhaoxia Dong ◽

...

Keyword(s):

Oil Recovery ◽

Polymer Flooding ◽

Oil Field ◽

Dynamic Adsorption ◽

Constraint Factor ◽

The Core ◽

Temperature Performance ◽

Water Cut

Viscosity-concentration and temperature performance are the prerequisite constraint factor of the application of polymer flooding in the oilfield. The static and dynamic adsorption of the polymer in the core can affect the performance of polymer flooding. Based on the viscosity-concentration, temperature and the static, dynamic adsorption results of six kinds of polymers, DQ3500 is chosen as the most suitable polymer for Zahra oilfield. Its affects show that oil recovery is increased by 7% and water cut is reduced by 20%.

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Hydrodynamic modeling of field development using enhanced oil recovery methods

Kompleksnoe ispolʹzovanie mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik shikisattardy Keshendi Paidalanu ◽

10.31643/2021/6445.13 ◽

2021 ◽

Vol 317 (2) ◽

pp. 14-22

Author(s):

G.Zh. Moldabayeva ◽

◽

A.Kh. Agzamov ◽

R.T. Suleimenova ◽

D.K. Elefteriadi ◽

...

Keyword(s):

Oil Recovery ◽

Seismic Data ◽

Water Injection ◽

Steam Injection ◽

High Viscosity ◽

Oil Fields ◽

Borehole Data ◽

Field Development ◽

High Viscosity Oil ◽

Cyclic Injection

This article discusses a digital geological model, the transfer of borehole data to the geological grid, and the modeling of the technology of alternating steam and water injection. Alternating injection involves the cyclic injection of steam and water into an injection well in high-viscosity oil fields. The essence of this technology is that during the steam injection for 2-4 months, the formation warms up, leading to a decrease in viscosity and an increase in oil mobility. Then comes the period of water injection, during which the production of already warmed oil continues and the formation pressure is maintained. For digital geological modeling, the following data were collected, processed and prepared: a list of wells that open the object of modeling, coordinates of wellheads, well altitudinal data, inclinometry of well trajectories, GМS data on wells, analysis of wells drilled with core sampling, and digitized seismic data (structural surfaces on the roof of stratigraphic horizons, parameter maps, contact surfaces, faults, structural maps on the roof of target horizons with faults, isochron maps, velocity maps).

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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

Occupational Safety in Industry ◽

10.24000/0409-2961-2020-12-58-65 ◽

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.

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OPTIMIZATION OF HIGH-VISCOSITY OIL FIELD DEVELOPMENT USING THERMO-HYDRODYNAMIC MODELING

19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining ◽

10.5593/sgem2019/1.3/s03.060 ◽

2019 ◽

Cited By ~ 1

Author(s):

Liliya Garipova

Keyword(s):

High Viscosity ◽

Hydrodynamic Modeling ◽

Oil Field ◽

Field Development ◽

Oil Field Development ◽

High Viscosity Oil

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

Oil and Gas Studies ◽

10.31660/0445-0108-2020-2-26-37 ◽

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.

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