GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

INFORMATION ABOUT THE WELL.

CASING POLICY:
Casing Ø340 mm – 300 m; 
Casing Ø245 mm – 2650 m; 
Casing Ø178 mm – 5250 m;
Liner Ø127 mm – 5175 – 5565 m.


DRILLING FLUID TYPE: 
Surface casing Ø340 mm – fresh-clay drilling fluid; 
Intermediate casing Ø244,5 mm – humate-based drilling fluid/NDDM; 
Production casing Ø178 mm – PIDM-2M polymer inhibited drilling fluid;
Liner Ø127 mm – OBM «Witer-II».


Well drilling term – 220 days.
Bottomhole temperature (5565 m) – 136 оС.


Drilling fluid density within the intervals of:

  • 300-2650 m – 1120-1160 kg/m3;
  • 2650-3200 m – 1260 kg/m3;
  • 3200-5250 m – 1320 kg/m3;
  • 5250-5565 m – 1350 kg/m3.