الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
A study was conducted to investigate the possibility
of reutilizing the waste water
treatment in the formulation of
produced from petroleum
drilling fluids. The
waste water, which was collected from various sources,
contained a proportion of crude oil. ranging from 10 to
50 ppm.
This oil pollution can cause serious damage to the
active marine. animal and plant lives when disposed in
the sea. This part of the M. Sc. is dedicated to the
investigation of the possibility of reusing this type of
water as the main component of an appropriate drilling
fluid system.
The reuse of the effluent water is beneficial in the
following aspects:
1- Reducing the major hazards caused to the marine animal
and plant lives, which takes place when the waste
water is disposed into the sea.
2- Reducing its harmful effect on the ground water aquifers if disposed on shore.
3- Saving the cost of importing sweet water needed for
drilling purposes and water transportation expenses to
well sites in remote areas. mostly situated far from
sources of fresh water supplies.
Depending on the results of the effluent water
analysis. and considering the range of variation of salt
contents. the following mud systems were designed:-
1- Ordinary and Prehydrated Magcogel type.
2- Conventional Attapulgite (salt water) type.
3- Special application muds to be used in workover
operation. offshore drilling and troublesome shaly zones.
where inhibitive additives for shale stabilization may be
included.
4- Invert emulsion or water in oil emulsions. where oil
forms the continuous phase.