05 Drilling
Drilling operations guidelines (123 pages)
SECTION-1: DRIVING CONDUCTOR PIPE 40”, 30”, 20” AND 18 ⅝” SECTION-2: 36” HOLE FOR 30” CONDUCTOR PIPE SECTION-3: 26” HOLE FOR 18 ⅝” CASING SECTION-4: 17 ½” HOLE FOR 13 ⅜” CASING SECTION-5: 12 ¼” HOLE FOR 9 ⅝” CASING SECTION-6: 8 ½“ HOLE FOR 7” PRODUCTION LINER SECTION-7: 6” OPENHOLE Source: Mourad CHETTAH
Source: Credits to DSc PhD Dževad Hadžihafizović (DEng)