GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

INFORMATION ABOUT THE WELL.

CASING POLICY:
Casing Ø473 mm – 320 m;
Casing Ø339,7 mm – 2620m; 
Casing Ø244,5 mm – 4550/4552 m; 
Casing Ø177,8 mm – 5550/5752 m;
Liner Ø127,0 mm – 5780 - 5835 m.

DRILLING FLUID TYPE:
Surface casing Ø473 mm – fresh-clay-drilling fluid; 
1st Intermediate casing Ø339,7 мм – BRNSTF-polymer drilling mud with low level of solid phase; 
2nd Intermediate casing Ø244,5 mm – PIDM-2М - polymer inhibited drilling mud;
Production casing Ø177,8 mm – PIDM-2М - polymer inhibited drilling mud;
Liner Ø127,0 mm  – P-HKR polymer chlorine-potassium drilling mud.


Well drilling term – 133 days.
Bottomhole temperature – 145 оС.
Drilling contractor is Xinjiang Beiken Energy Engineering.

Drilling fluid density within the interval of 320-2620 m - 1140-1180 kg/m3;
Drilling fluid density within the interval of 2620-4780 m - 1180 kg/m3;
Drilling fluid density within the interval of 4780-5300 m - 1280 kg/m3;
from the depth of 5300 to 5690 m - 1370 kg/m3;
from the depth of 5690 to 5830 m - 1580 kg/m3;;
Drilling fluid density within the interval of 5830-5935 m - 1240 kg/m3.