GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

INFORMATION ABOUT THE WELL

CASING POLICY:
Casing Ø508,0 mm - 360 m;
Casing Ø339,7 mm - 2290 m; 
Casing Ø244,5 mm - 4795 m; 
Liner Ø177,8 mm - 4775-5000 m. 
Liner Ø127,0 mm - 4980-5250 m; 

DRILLING FLUID TYPE: 
Casing Ø508,0 mm – fresh- clay-drilling fluid; 
Casing Ø339,7 mm – BRNSTF-polymer drilling mud with low level of solid phase; 
Casing Ø244,5 mm – polymer-inhibited drilling mud PIDM-2M; 
Liner Ø177,8 мм – invert emulsion drilling mud «Witer II».; 
Liner Ø127,0 мм – invert emulsion drilling mud «Witer II»..

Well drilling term – 220 days.
Temperature on depth 5250 m - 138оС. 
Drilling fluid density on interval 4795-5250 m - 1180 kg/m3.

This is the first well, pay zone of which will be opened with using of invert-emulsion drilling fluid "Witer-II".