A Comparative Study of Diesel Oil and Soybean Oil as Oil-Based Drilling Mud

Table 1

Physicochemical properties of diesel and soybean oil.

Property	Diesel oil # 2	Soybean oil
Physical form	Liquid	Liquid
Melting point	−30°C to −18°C^a	−16°C^b
Boiling point	282°C–338°C^a	257°C^d
Density	830 kg/m^3 at 20°C^c	920 kg/m^3 at 20°C^c
Water solubility	Immiscible	Immiscible
Flash point	70°C^c	330°C^c
Cloud point	−9°C^c	−4°C^c
Kinematic Viscosity	6 Cst at 20°C^c	61 Cst at 20°C^c
Pour point	−18°C^c	−20°C^c

Source:
^ahttp://www.inchem.org.
^bhttp://www.engineeringtoolbox.com.
^chttp://www.proceedings.scielo.br/img/eventos/agrener/n4v1/064t01.gif.
^dhttp://van.physics.illinois.edu/qa/listing.php?id=1428.