INFORMATION ABOUT THE WELL.
CASING POLICY:
Casing Ø508 mm – 175 m;
Casing Ø340 mm – 1550 m;
Casing Ø245 mm – 3170 m;
Casing Ø178 mm – 4020 m;
DRILLING FLUID TYPE:
Surface casing Ø508 mm – fresh-clay-drilling fluid;
1st Intermediate casing Ø340 мм – BRNVTF-polymer drilling mud with low level of solid phase;
2nd Intermediate casing Ø245 mm – PIDM-2М - polymer inhibited drilling mud;
Production casing Ø178 mm – clayless drilling mud «Biocar-МТ».
Well drilling term – 70 days.
Bottomhole temperature – 88 оС.
Drilling contractor is Crosco - Integrated Drilling & Well Services.
Drilling fluid density within the interval of 185-1550 m - 1140 kg/m3;
Drilling fluid density within the interval of 1550-3170 m - 1280 kg/m3
from the depth 2610 to 3170 m - 1400 kg/m3;
Drilling fluid density within the interval of 3170-4020 m - 1180 kg/m3.
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