Open Access

Table 1.

Basic data for analysis.

Parameter Data Parameter Data Parameter Data
Vertical depth (KOP) 1280 m Wellbore diameter 215.9 mm Average particle size 7 mm
Build-up section 380 m Drill pipe diameter 127 mm Cuttings sphericity 0.8
Build-up rate 2.3°/10 m Eccentricity 0.6 Drilling rate 7.6 m/h
Horizontal departure 421 m Cuttings density 2.56 g/cm3 Bottom hole foam quality 56%
Temperature gradient 3 °C/100 m Wellhead temperature 23 °C Bottom hole bubble flow 1.04 m3/min

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