GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

INFORMATION ABOUT THE WELL.

CASING POLICY:
Casing Ø473 mm – 300 m;
Casing Ø340 mm – 2200 m; 
Casing Ø245 mm – 4600 m; 
Casing Ø178 mm – 5100 m;
Liner Ø127 mm –5850 m.

DRILLING FLUID TYPE: 
Surface casing Ø473 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  – polymer potassium chloride drilling mud;
Liner Ø127 mm  – OBM Witer-II.


Well drilling term – 228 days.
Bottomhole temperature – 162 оС.

Drilling fluid density within the interval of 300-2200 m – 1160 kg/m3;
Drilling fluid density within the interval of 2200-4600 m – 1200-1380 kg/m3;
Drilling fluid density within the interval of 4600-5100 m – 1660 kg/m3;
Drilling fluid density within the interval of 5100-5850 m – 1930 kg/m3.