Well cementing process
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United States of America Patent
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-
May 13, 1986
Issued Date -
N/A
app pub date -
Jun 18, 1984
filing date -
Jan 24, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Improved bonding in a well system between cement, well tubular members and the formation about the well/bore at a pay zone. Drilling fluid materials (mud, solids, filter cake, etc.) are displaced at turbulent flow conditions by a slug of concentrate consisting essentially of a water-free mixture of surfactant and alcohol. The aqueous fluid cement immediately follows the slug. Residual filter cake and tubular member are water-wetted. The cement on hardening has an improved bonding to both tubular members and formation at the pay zone.
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Cited Art Landscape
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