Dilution of drilling fluid in forming cement slurries
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United States of America Patent
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May 24, 1994
Grant Date -
N/A
app pub date -
Oct 22, 1992
filing date -
Oct 22, 1992
priority date (Note) -
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Abstract
A drilling fluid is diluted and a cementitious component added thereto. In a more specific embodiment the dilution is carried out by introducing liquid such as water to a flowing stream of the drilling fluid and thereafter a cementitious component is mixed therewith. Thus, the drilling fluid can be used in a conventional manner to drill a well and thereafter diluted and a cementitious component added to produce a cement for cementing operations such as setting a casing in the well and/or can be used for remedial cementing. In another embodiment of the invention, the drilling fluid itself contains a small amount of cementitious component and additional cementitious component is added after the dilution.
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