Well treating process and composition
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United States of America Patent
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Oct 23, 1984
Issued Date -
N/A
app pub date -
Mar 12, 1984
filing date -
Jan 27, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for treating a subterranean zone by emplacing therein a hardenable aqueous slurry and then permitting the slurry to harden, where the slurry comprises a hydraulic cement, water, sodium bentonite, sodium metasilicate, and a hydroxyethyl cellulose. The composition and process employing same is particularly useful in the treatment of oil and gas wells where cementing of a weak formation or very long string cementing, in a single stage, is desired.
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