Stress Estimation in Faulted Regions: The Effect of Residual Friction B. Wu; B. Wu CSIRO Petroleum Search for other works by this author on: This Site Google Scholar M.A. Addis; M.A. Addis CSIRO Petroleum Search for other works by this author on: This Site Google Scholar N.C. Last N.C. Last BP Exploration Colombia Ltd. Search for other works by this author on: This Site Google Scholar Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, Trondheim, Norway, July 1998. Paper Number: SPE-47210-MS https://doi.org/10.2118/47210-MS Published: July 08 1998 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Wu, B., Addis, M.A., and N.C. Last. "Stress Estimation in Faulted Regions: The Effect of Residual Friction." Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, Trondheim, Norway, July 1998. doi: https://doi.org/10.2118/47210-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE/ISRM Rock Mechanics in Petroleum Engineering Search Advanced Search AbstractThis paper presents relationships for estimating horizontal stresses based on the assumptions that the in situ stress state in a petroleum basin is controlled by the bounding normal or thrust faults at a limit equilibrium and that the fault block is linear elastic and plane strain condition applies in the direction parallel to the strike of the fault. These relationships are an extension of an earlier study and include the effect of residual friction angles on the estimation of horizontal stresses at depth.The result shows that re-orientation of the minimum principal stress is possible after faulting depending on the Poisson's ratio of the formation. Predictions based on the relationships are compared with the stress data obtained in normal and thrust fault conditions as well as with the change in the minimum horizontal stress induced by the pore pressure depletion. The results show that to match the field stress data, a relatively low residual friction angle (100 – 300) on the fault is required. This is further supported by the numerical modelling of the in situ stresses in the Cusiana field in Colombia, and is consistent with the residual friction angles measured in laboratory or back-calculated based on earthquake mechanism.P. 59 Keywords: upstream oil & gas, horizontal stress, minimum horizontal stress, magnitude, friction angle, fault angle, fault residual friction angle, stress data, poisson, assumption Subjects: Wellbore Design, Reservoir Characterization, Wellbore integrity, Faults and fracture characterization, Reservoir geomechanics This content is only available via PDF. 1998. Society of Petroleum Engineers You can access this article if you purchase or spend a download.