Determination of Rock Strength from Core Logs – Where We Are and Ways to Go
by Abbas Khaksar, Baker RDS
Presentation abstract:
Knowledge of accurate rock strength is essential for in situ stress estimation, wellbore stability analysis, sand production prediction and other geomechanical applications. Rock strength evaluation is primarily based on log strength indicators, calibrated where possible against limited core measured values. There are a number of published log-core strength correlations that can be used for rock strength modelling. These empirical relationships are developed for specific rock type, age, depth range and field. Their general applications, therefore, need to be critically assessed on a case by case basis. This presentation briefly: (i) outlines the best practice for obtaining quality rock strength data from core tests; (ii) presents common empirical rock strength equations for sedimentary rocks and (iii) discusses ways of improving rock strength estimates
About the Presenter:
Dr. Abbas Khaksar, is a principal geomechanics specialist with Baker RDS (Perth). He has 19 years of industry and R&D experience in rock mechanics and petrophysics with strong knowledge of reservoir geomechanics. In the past 10 years, Abbas has worked extensively in petroleum geomechanics consultancy, with GMI (2000-2005) and 2005- present with Baker RDS. He has worked on more than 100 consulting projects in many areas of geomechanics. He has about 50 publications in peer reviewed journals, SPE papers and conference presentations in areas of reservoir geomechanics and rock physics.
