Inferring in situ stresses in a naturally fractured heavy oil field

A. Shafiei, M. B. Dusseault

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

Abstract

Delineation of in situ stress field (magnitudes and orientations of the principal stresses) has several applications in petroleum industry such as better drilling management, effects of oil production on stress regime change, stress change effects on permeability, increasing the stability of boreholes, enhancing the oil production from stress sensitive reservoirs, subsidence due to stress changes, and optimal drilling and field development. In this article, magnitudes and orientations of the in situ principal stresses in the study area was estimated with combination of various available data and techniques including core analysis, image logs (FMI and UBI logs), World Stress Map, and geological and geotectonics evidences. The orientation of maximum and minimum horizontal stresses was obtained NE-SW and NW-SE. In addition, magnitudes of the in situ principal stresses and pore pressure were estimated. Estimates made in this study using multiple sources such as core analysis, and image logs are in a good agreement with estimates suggested by World Stress Map, and geological and geotectonic evidences. Results obtained from this study will help manage the geomechanical issues related to drilling and production more efficiently.

Original languageEnglish
Title of host publication46th US Rock Mechanics / Geomechanics Symposium 2012
Pages2686-2696
Number of pages11
Volume4
Publication statusPublished - Dec 1 2012
Externally publishedYes
Event46th US Rock Mechanics / Geomechanics Symposium 2012 - Chicago, IL, United States
Duration: Jun 24 2012Jun 27 2012

Publication series

Name46th US Rock Mechanics / Geomechanics Symposium 2012
Volume4

Conference

Conference46th US Rock Mechanics / Geomechanics Symposium 2012
CountryUnited States
CityChicago, IL
Period6/24/126/27/12

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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