GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

INFORMATION

CASING POLICY:
Casing Ø508 mm – 100 m;
Casing Ø340 mm – 1890 m; 
Casing Ø245 mm – 2810 m; 
Casing Ø178 mm – 3410 m;
Liner Ø127 mm – 3890 m.

DRILLING FLUID TYPE: 
Surface casing Ø508 mm – fresh-clay-drilling fluid;
1st Intermediate casing Ø340 mm – «PIDM-2М» polymer inhibited drilling mud; 
2nd Intermediate casing Ø245 mm – «PIDM-2М» polymer inhibited drilling mud;
Production casing Ø178 mm – clayless drilling mud «Biocar-МТ»;
Liner Ø128 мм – clayless drilling mud «Biocar-МТ».

Drilling contractor is Xinjiang Beiken Energy Engineering (China).
Well drilling term – 70 days.
Bottomhole temperature (3890 m) – 88 оС.

Drilling fluid density within the interval of 100-1890 m – 1140-1180 kg/m3;
Drilling fluid density within the interval of 1890-2810 m – 1460 kg/m3;
Drilling fluid density within the interval of 2810-3410 m – 1200 kg/m3;
Drilling fluid density within the interval of 3410-3890 m – 1120 kg/m3.