Analysis of possible geological reasons causing rapid rate decline - A case study of T field, Russia

S. Kuzmin, V. Rukavishnikov, V. A. Sukovatyi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The paper introduces the complex approach in determining possible geological reasons causing rate decline in the wells of T field, Russia. Therefore, possible geological reasons are sequentially considered, which were divided into three main groups: 1) rate decline due to poorer reservoir quality; 2) rate decline due to facies lateral substitution; 3) rate decline due to active fault tectonics. The most appropriate facies models are constructed using all available data and in this work core, well logging, seismic and well test data were integrated for the fullest reservoir characterization. Core from several recently drilled wells was described in details determining clue features. Further, seismic data was interpreted: both structural interpretation, including faults and attribute analysis were implemented. Appropriate electrofacies models were chosen as well. On the final stage all previously-mentioned data was integrated with appropriate facies model construction. However, as turned out later, facies model is not the key factor affecting rapid decline appeared in some wells. It is suggested that very proximal faults can be the possible explanation. To confirm this suggestion, well test data was additionally used that show consistency of this theory.

Original languageEnglish
Title of host publication6th Saint Petersburg International Conference and Exhibition on Geosciences 2014
Subtitle of host publicationInvesting in the Future
PublisherEuropean Association of Geoscientists and Engineers, EAGE
Pages495-499
Number of pages5
ISBN (Print)9781632665393
DOIs
Publication statusPublished - 2014
Event6th Saint Petersburg International Conference and Exhibition on Geosciences 2014: Investing in the Future - Saint Petersburg, Russian Federation
Duration: 7 Apr 201410 Apr 2014

Publication series

Name6th Saint Petersburg International Conference and Exhibition on Geosciences 2014: Investing in the Future

Conference

Conference6th Saint Petersburg International Conference and Exhibition on Geosciences 2014: Investing in the Future
CountryRussian Federation
CitySaint Petersburg
Period7.4.1410.4.14

ASJC Scopus subject areas

  • Geochemistry and Petrology

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