Log-based rock compressibility estimation for Asmari carbonate formation

• DOI: 10.1007/s13202-020-00934-0
• Publication Date: 2020-06-20T10:03:02Z
• Authors: Rahman Ashena; Peter Behrenbruch; Ali Ghalambor
• Keywords: Geomechanics

Abstract Rock compressibility has many applications in the upstream petroleum industry, for example, reservoir material balance calculations and geomechanics, as related to possible formation compaction subsidence. When measurements on core are not available, empirical correlations may need be considered, derived specific fields. In study presented, suitability of log-based method evaluating rock is investigated, with aim deriving a suitable correlation Asmari carbonate, Southwest Iran. A stepwise determination including construction geomechanical earth model, MEM. comparing log approach core-derived results, it was found that showed rather reliable estimation pore carbonates studied, except intervals extremely large wellbore washout. Although selected procedure similar used sandstone by other researchers, involving some cases complex procedures, relatively good matching result could obtained simple procedure. To validate results from this study, comparison values made several industry correlations. An application estimating associated subsidence also presented. However, minimal effect indicated case, studied consolidated. summary, presents new Southwestern Iranian carbonate oilfields (Asmari carbonate), validating applicability technique.