... in compression testing. For L/D 1.0-1.5 the decrease in UCS is greatest, for L/D 1.5-2.0 the decrease is moderate. Further, the data analysis shows how L/D correction can be obtained for any formation type in any test plan. 1. INTRODUCTION Reservoir Characterization strength tri-axial test...

... intervals and in choosing key formation types. Unnecessary depth intervals can be skipped, enabling companies to avoid collecting ten to several hundred feet of continuous conventional coring after the coring begins. In the present work, large sets of sidewall cores were obtained from the BETA BHJ 12 well...

... bit selection Upstream Oil & Gas ROP model proceedings reservoir geomechanics compressive strength drilling operation bit wear rock strength two-term rollercone rate Reservoir Characterization bit design laboratory data ROP formation type drillstring design hydraulic energy...