Determination of the background values of hydrochemical indicators characteristic for formation water of the Imilorskoe field
UDC: 622.276
DOI: 10.33285/0207-2351-2022-5(641)-38-44
Authors:
ASTARKINA ANZHELA G.1,
KRASNYASHCHIKH OLGA S.1,
PEYCHEVA NATALYA V.1,
SHAIKHUTDINOV AIDAR N.
2
1 LUKOIL-Engineering Limited KogalymNIPIneft Branch Office in Tyumen, Tyumen, Russia
2 LUKOIL-Western Siberia, Kogalym, Russia
Keywords: reservoir water, produced water, aquifer, hydrochemical index, mineralization, physical-chemical properties, background value, chloride ions, magnesium ions, calcium ions
Annotation:
An algorithm for determining the background values of the main physical-chemical parameters characteristic of the formation waters of the Imilorskoe field at the present stage of development is considered. The use of statistical methods for processing an array of data made it possible to exclude unreliable results from the total amount of information, to present numerical material like generalized tables and point statistical characteristics (arithmetic mean, minimum and maximum values). The background values of formation waters hydro-chemical parameters were analyzed, each aquifer complex of a deposit (Aptian-Albian-Cenomanian, Neocomian, Berriasian-Valanginian and Jurassic) were briefly described. The vertical variability of the main physical-chemical properties of formation waters of the Imilorskoye field was analyzed. Using the obtained background values of the main physical-chemical parameters, formation water composition diagrams were constructed, which allow quick and accurate determination of the produced water nature.
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