The formation of hydrochemical indicators for the pay zones in the Surgut arch oil fields


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Abstract

The causes of the spatial variation in the hydrochemical indicators of groundwater in several oil fields in the Surgut arch of West Siberia are considered. On the basis of statistical processing of the database, including several thousand analyses of groundwater, histograms of the distribution of mineralization and concentrations of Ca2+ and HCO3 ions through the main pay horizons of the fields are constructed. The influence of deep (hydrothermal) water inflow on the formation of the chemical composition of the stratum waters of oil fields, which is exhibited by an increasing content of HCO3 ion with depth, is substantiated.

About the authors

L. A. Anisimov

VolgogradNIPImorneft

Author for correspondence.
Email: l_anisimov@yahoo.com
Russian Federation, Volgograd

T. A. Kireeva

Department of Geology

Email: l_anisimov@yahoo.com
Russian Federation, Moscow

K. I. Bankin

VolgogradNIPImorneft

Email: l_anisimov@yahoo.com
Russian Federation, Volgograd

O. S. Krasnyashchikh

KogalymNIPIneft

Email: l_anisimov@yahoo.com
Russian Federation, Tyumen

L. A. Lyamina

Department of Geology

Email: l_anisimov@yahoo.com
Russian Federation, Moscow

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