«Proceedings of Gubkin University»

Substantiation of the nature of normal compaction of sandy-clay rocks according to gamma-gamma density logging

UDC: 550.3+550.8
DOI: -

Authors:

¹ Tyumen Industrial University, Tyumen, Russian Federation

Keywords: the nature of compaction of “characteristic” base types rock, terrigenous deposits, GIS quality assessment, gamma-gamma density logging, petrophysical properties prediction

Annotation:

The process of compaction of terrigenous sedimentary rocks with increasing depth is considered: for “characteristic” base types of sandy-clayey rocks. The dependence of changes in density and porosity on the depth of their occurrence is described by normal compaction curves (NSC). The purpose of this work is to substantiate the reliability of the NSC approximation in a way that ensures representative data for the entire well section, in particular, based on gamma-gamma density logging damaterials. To do this, we considered data from wells representing three different oil and gas bearing regions of the Middle Ob oil and gas area – Surgutsky, Vartovsky and Noyabrsky. The relevance of the work is determined by the ability to control the quality of logging materials using NSC and increase the efficiency of interpretation of well geophysical survey materials.

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