Application
(ACS 102) is designed to separate heavy cement slurries and water-based drilling muds. The main advantage of spacer is the very good fluid loss control at low and high temperatures. The filter cake which is formed helps to greatly reduce the fluid leak-off into formations where the mud cake has been mechanically removed by centralizers or scratchers. The spacer should be denser and more viscous than the mud but lighter and less viscous than the cement slurry. The spacer can be displaced in laminar or turbulent flow depending on the temperature and pipe configuration. A minimum of 500 ft. of annular fill of spacer should normally be used ahead of the cement, and pipe movement should be attempted where possible to help achieve maximum mud removal.
Physical and Chemical Properties
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Item
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Physical and Chemical Properties
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1
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Appearance
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White to Gray powder
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2
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Odor
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None
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3
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Solubility in water
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Low
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Safety Precautions
It is irritant. Avoid inhalation. It is recommended to wear mask and goggles during handling.
packaging
It is available in 25-kg sacks.