GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

INFORMATION

CASING POLICY:
Casing Ø508 mm – 120 m;
Casing Ø340 mm – 1900 m; 
Casing Ø245 mm – 2870 m; 
Casing Ø178 mm – 3270 m;
Liner Ø127 mm – 3910 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 (3910 m) – 88 оС.

Drilling fluid density within the interval of 120-1900 m – 1120-1160 kg/m3;
Drilling fluid density within the interval of 1900-2870 m – 1280-1530 kg/m3 (from a deapth 2180 m – 1530 kg/m3);
Drilling fluid density within the interval of 2870-3270 m – 1200 kg/m3;
Drilling fluid density within the interval of 3270-3910 m – 1120 kg/m3.