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Andrey А. Maltcev
Andrey А. Maltcev
Postgraduate Student
Saint Petersburg Mining University
Postgraduate Student
Saint Petersburg Mining University

Co-authors

Articles

Geotechnical Engineering and Engineering Geology
  • Date submitted
    2021-06-24
  • Date accepted
    2021-10-18
  • Date published
    2021-10-29

Modeling the acid treatment of a polymictic reservoir

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Acid treatment of wells program is directly related to oil production efficiency. Investigations aimed at improving the efficiency of acid treatment in a terrigenous reservoir have mainly reviewed the changing and adapting the reagents to minimize bridging caused by acid-rock interaction. Under real conditions, application of new and unique acid compositions is a complex process from an organizational point of view and is therefore not widely used as compared with conventional compositions based on a mixture of hydrochloric and hydrofluoric acids. The paper is based on an approach to improve acid treatment efficiency through optimal design based on near-bottomhole zone treatment simulation. The aspects for practical application of the developed acid treatment simulator for terrigenous reservoirs based on a numerical model of hydrodynamic, physical and chemical processes in a porous medium on an unstructured PEBI-grid are described. The basic uncertainties of the model are identified and analyzed. Influence of empirical parameters within the system of equations on the calculation results and modeling of the mineralogical composition of rocks are considered. Algorithm for static modelling of near-bottomhole zone for acid treatment modelling is described, as well as an approach to optimizing the design of near-bottomhole zone treatment based on adapting the results of rock tests in the model. Using experimental data, the necessity of accounting for influence of secondary and tertiary reactions on the results of modeling physical and chemical processes during acid treatment of terrigenous reservoirs was proved. The distinctive features of West Siberian objects (polymictic reservoirs) with respect to the efficiency of near-bottomhole zone treatment with clay acid have been investigated. Series of calculations to determine the optimum volume of acid injection has been carried out. Experience of previously conducted measures under the considered conditions has been analyzed and recommendations to improve the efficiency of acid treatment have been given.

How to cite: Khasanov M.M., Maltcev A.А. Modeling the acid treatment of a polymictic reservoir // Journal of Mining Institute. 2021. Vol. 251. p. 678-687. DOI: 10.31897/PMI.2021.5.7
Problems of sustainable development of mineral raw material complex
  • Date submitted
    2010-09-23
  • Date accepted
    2010-11-08
  • Date published
    2011-03-01

Mineral-resources sector: rudiment or the element of the «clever economy»?

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The article deals with the problems of the modernization renewal of the Russian mining sector. There are revealed the key barriers, preventing the mineral-resources sector from transition to the innovative growth trajectory. The key conclusions of the Russian mining sector future in the new global frameworks system are defined. 

How to cite: Maltsev A.A. Mineral-resources sector: rudiment or the element of the «clever economy»? // Journal of Mining Institute. 2011. Vol. 191. p. 134.
Mineral raw materials complex: problems in control under new economical conditions
  • Date submitted
    2008-11-16
  • Date accepted
    2009-01-15
  • Date published
    2009-05-01

The USA mineral-resources sector development in the globalization epoch

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There are revealed the peculiarities of America’s mineral-resources sector at the modern stage of development. The influence of globalization processes on the US mineral-resources sector evolution is considered. The strategy and tactics of US mineral-resources sector state positioning policy in new management frameworks are being scrutinized.

How to cite: Maltsev A.A. The USA mineral-resources sector development in the globalization epoch // Journal of Mining Institute. 2009. Vol. 184. p. 62-69.