The well is directional, design depth 4650m.
The most modern systems of drilling fluids will be utilize which have repeatedly proved their effectiveness while drilling wells in the fields of Ukraine.
INFORMATION ABOUT THE WELL
CASING POLICY:
Casing Ø473,1 mm – 245 m;
Casing Ø339,7 mm – 2650 m;
Casing Ø244,5 mm – 4080 m;
Liner Ø193,7 mm – 4050-4250 m;
Liner Ø139,7 mm – 4020-4515 m;
Slotted Liner Ø89,0 mm – 4495-4650 m.
DRILLING FLUID TYPE:
Casing Ø473.1 mm – fresh-clay-drilling fluid;
Casing Ø339,7 mm – non-dispersing drilling mud BRNSTF (NDDM);
Casing Ø244,5 mm – Biocar-MT;
Liner Ø193,7 mm – Biocar-MT;
Liner Ø139,7 mm – invert emulsion drilling mud «Witer II»;
Slotted Liner Ø89,0 mm – invert emulsion drilling mud «Witer II».
Well drilling term – 154 days.
Temperature on depth 4650 m – 137оС.
Drilling fluid density on interval 275-2650 m – 1120-1160 kg/m3.
Drilling fluid density on interval 2650-4080 m – 1140 kg/m3.
Drilling fluid density on interval 4080-4250 m – 1340 kg/m3.
Drilling fluid density on interval 4250-4650 m – 1160-1340 kg/m3.
