Experimental and Numerical Analysis of Rheological Properties of Invert
Emulsion Mud and Its Use for Pressure Control
Abstract
Emulsion muds are water based drilling fluids, which contain dispersed
oil or synthetic hydrocarbon as an internal phase. Drilling muds are
very multifaceted liquids mostly made of up clay suspensions and other
materials used as circulatory fluids during well drilling. The ability
of drilling fluids, in particular invert emulsion muds to perform their
functions, such as removal and transportation of cuttings from the well,
lubrication and cooling of drill bits and parts, well wall support and
formation fluid containment is all dependent on the rheological
properties such as their elasticity, plasticity, viscosity and how they
flow and distort. The objective of this paper is to carry out an
experimental study on oil based drilling fluid; invert emulsion mud,
study its rheological properties, its formulation and how they affect
well construction and stability. The mud mixture would also be simulated
using Drill Bench.