INFORMATION ABOUT THE WELL.
CASING POLICY:
Casing Ø508 mm – 160 m;
Casing Ø340 mm – 2070 m;
Casing Ø245 mm – 3410 m;
Casing Ø178 mm – 3820 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 – 76 оС.
Drilling contractor is "Spetsmechservice" (SMS).
Drilling fluid density within the interval of 160-2070 m - 1120 kg/m3;
Drilling fluid density within the interval of 2070-3410 m - 1280 kg/m3
from the depth 2290 to 3410m - 1400 kg/m3;
Drilling fluid density within the interval of 3410-3820 m - 1120 kg/m3.
