In this study, the cassava derivative Fufu was purchased
from Chow Kit market in Kuala Lampur, Malaysia and
applied as fluid loss agent. As a comparison, potato and
corn-starches were used as a benchmark for fluid control
product. They were bought from shops in Tehran, Iran.
Saturated salt water was consumed as the fundamental
material for the mud formulation prepared in the Pars
Drilling Fluid Company laboratory (Tehran, Iran). Barite
(BaSO4) and hematite (Fe2O3) were functioned as viscofiers,
sodium hydroxide (NaOH) for pH elevation and corrosion
resistant, sodium chloride (NaCl) as mud swelling controller,
density enhancer and also to perform as a bridge in saturated
solutions. These additives were purchased from Iran Kaolin
and Barite Company (IKB Co.) in Tehran, Iran.