INFORMATION ABOUT THE WELL.
CASING POLICY:
Casing Ø630 mm – 20 m;
Casing Ø473 мм – 300 m;
Casing Ø339,7 mm – 2200 m;
Casing Ø244,5 mm – 4800 m;
Casing Ø177,8 mm (1 section) – 3800-5750 m;
Liner Ø127 mm – 5700-6300 m;
Casing Ø177,8 mm (2 section) – 0-3800 m.
DRILLING FLUID TYPE:
Surface casing Ø473 mm – fresh-clay-drilling fluid;
1st Intermediate casing Ø339,7 mm – BRNVTF-polymer drilling mud with low level of solid phase/NDDM;
2st Intermediate casing Ø244,45 mm – PIDM-2М polymer inhibited drilling mud;
Production casing Ø177,8 mm – OBM «Witer-II»; the interval will be cemented with the utilization of inverted oil-emulsion cement slurry IOECS-2;
Liner Ø114,3 мм – OBM «Witer-II».
Well drilling term – 200 days.
Bottomhole temperature (6300 m) – 154 оС.
Drilling fluid density within the intervals of:
- 0-300 m – 1120 kg/m3;
- 300-2200 m – 1160 kg/m3;
- 2200-3800 m – 1250 kg/m3;
- 3800-4800 m – 1320 kg/m3;
- 4800-5750 m – 1160 kg/m3;
- 5750-6300 m – 1250-1370 kg/m3.
