Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
COMPOSITIONS AND METHODS FOR COMPLETING SUBTERRANEAN WELLS
Hydroxyethylcellulose (HEG) may be used to provide fluid-loss control in well-cement slurries HECs that have a molecular weight above 600,000, a degree of substitution higher than 1.9 and a molar substitution above 2.0 are particularly useful in that they not only provide fluid-loss control, but also may be used as a cement extender. Furthermore, the retardation effect may be reduced.
COMPOSITIONS AND METHODS FOR COMPLETING SUBTERRANEAN WELLS
Hydroxyethylcellulose (HEG) may be used to provide fluid-loss control in well-cement slurries HECs that have a molecular weight above 600,000, a degree of substitution higher than 1.9 and a molar substitution above 2.0 are particularly useful in that they not only provide fluid-loss control, but also may be used as a cement extender. Furthermore, the retardation effect may be reduced.
COMPOSITIONS AND METHODS FOR COMPLETING SUBTERRANEAN WELLS
TERRIER CYRIL (Autor:in) / COUILLET ISABELLE (Autor:in) / ACHTAL HAFIDA (Autor:in)
20.04.2017
Patent
Elektronische Ressource
Englisch
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