Unformatted text preview: c) 2005 by Ali Ghalambor & Boyun Guo 58 Viscosity: The viscosity of a drill fluid has
many effects on the drilling process. The fluid
is expected to have a sufficient viscosity to
carry the cuttings from the hole yet have a
minimum necessary viscosity to minimize
swab and surge pressures due to vertical pipe
The viscosity dependent on: (1) the size ,
shape, and number of particles in the system;
(2) the internal attraction of the mud particles.
117 Fluid Loss: One of the primary functions of a
drilling fluid is that of controlling the amount
of fluid lost from the mud to the formation.
Salinity: The salinity of the mud system is
dependent upon the number of salt ions in
solutions. The salinity may be a measure of
the chloride ions or a measure of total salt.
Gas Counting: Measuring the amount of gas
in the mud system is used in abnormal
118 Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 59 Special Operations
Volumetric Method: the volumetric method is
one way to run the pipe in the hole in a
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- Fall '14
- Boyun Guo, Ali Ghalambor