Casing covered interval from 3966 to 5617m. Drilling were held with using of Polymer-inhibited drilling mud PIDM-2M.
Now our main goal is penetration of pay zone with the highest quality. We shall prepare well for transfer to clay-less system Biocar®.
PARAMETERS OF PIDM-2M DRILLING MUD BEFORE CASING RUNNING:
- Density – 1,33 g/сm3;
- Funnel Viscosity – 95 s;
- Gel – 72/81 dPa;
- PV – 87 mPa*с,
- YP – 134 dPa,
- Filtration loss – 5 сm3/30 min;
- Mud Cake Friction Coefficient – 0,08;
- Salinity – 23,5%;
- Concentraion of KCl - 7%;
- рН – 8,5