Scleroglucane containing drilling mud

C - Chemistry – Metallurgy – 09 – K

Patent

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31/8

C09K 8/20 (2006.01) C09K 8/08 (2006.01)

Patent

CA 2040753

BREVET D'INVENTION BOUE DE FORAGE AU SCLEROGLUCANE Invention de : Alain VAUSSARD Alain LADRET Alain DONCHE SOCIETE ANONYME DITE : SOCIETE NATIONALE ELF AQUITAINE ABREGE DESCRIPTIF Composition de base pour boues de forage à base d'eau permettant de limiter le nombre et la quantité des autres constituants de la boue. Ladite composition de base comporte outre le solvant de base, eau douce, eau de mer ou eau salée, du scléroglucane comme agent viscosifiant, le mycélium l'ayant produit et de la bentonite ou un équivalent en quantité limitée.

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