$Thermophilic mannanohydrolase and fracturing fluids containing the same$

Thermophilic mannanohydrolase and fracturing fluids containing the same

A thermophilic mannanohydrolase enzyme may be used as an enzyme breaker for fracturing fluids containing hydratable polymers of guar and underivatized guar. The enzyme is effective in downhole temperatures exceeding 160° F.

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Bibliographische Detailangaben
1. Verfasser:	Charles David Armstrong
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA DYES ENZYMOLOGY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MUTATION OR GENETIC ENGINEERING NATURAL RESINS PAINTS POLISHES PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	A thermophilic mannanohydrolase enzyme may be used as an enzyme breaker for fracturing fluids containing hydratable polymers of guar and underivatized guar. The enzyme is effective in downhole temperatures exceeding 160° F.