Scientific and technical journal

«Proceedings of Gubkin University»

ISSN 2073-9028

Proceedings of Gubkin University
CHANGE OF RESERVOIR PROPERTIES AS A RESULT OF ACID TREATMENT

UDC: 552.08:522.54:551.734(470.13)
DOI: -

Authors:

Postnikov Alexander V.1,
Kosmynin Vladislav A.1

1 Gubkin Russian State University Oil Gas

Keywords: collector, porosity, permeability, acid treatment

Annotation:

The influence of acid treatment on carbonate reservoirs is analyzed on samples of core. Several genetic types of upper Devonian limestones and dolomites of the Timano-Pechora Province are studied. The investigated acidized samples were saturated colored pitch. The structure of pore space was analyzed in transparent sections. Depending on the rock composition and structure both improved reservoir properties of rocks, and their deterioration was established. It is shown that acid treatment in good re- servoirs can be not effective or have negative consequences, while inferior reservoirs can show improved permeability.

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