METHOD OF RESTRAINING MIGRATION OF FORMATION SOLIDS IN A WELLBORE

Migration of formation solids in a wellbore is restrained by feeding a slurry, comprising water, a viscosifier, and a concentration of cement clinker particles, into the wellbore, and hydrating the clinker particles in the wellbore. The clinker particles are kept in suspension during the hydrating,...

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Main Authors CORNELISSEN, ERIK KERST, VERBIST, GUY LODE MAGDA MARIA, VAN DER WEGEN, GERARDUS JOHANNES LEONARDUS, LANGEDIJK, GIDEON, BLEEKER, PETER JAN, MEAD, CHRISTOPHER JOHN, HEATHMAN, JAMES FRANK
Format Patent
LanguageEnglish
French
Published 13.06.2019
Subjects
ADHESIVES
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
DYES
LIME, MAGNESIA
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:Migration of formation solids in a wellbore is restrained by feeding a slurry, comprising water, a viscosifier, and a concentration of cement clinker particles, into the wellbore, and hydrating the clinker particles in the wellbore. The clinker particles are kept in suspension during the hydrating, and upon completion of the hydrating the hydrated clinker particles form a hardened cement consisting of a permeable structure of interconnected hydrated clinker particles. A layer of degradable lost circulation material (LCM) may be employed to separate the slurry with clinker particles from the formation surrounding the wellbore during hydrating of the clinker particles. Selon l'invention, la migration de matières solides de formation dans un puits de forage est limitée par l'introduction d'une boue, comprenant de l'eau, un agent augmentant la viscosité et une certaine concentration de particules de clinker de ciment, dans le puits de forage et l'hydratation des particules de clinker dans le puits de forage. Les particules de clinker sont maintenues en suspension pendant l'hydratation et, une fois l'hydratation achevée, les particules de clinker hydratées forment un ciment durci constitué d'une structure perméable de particules de clinker hydratées reliées entre elles. Une couche de matériau colmatant (LCM) dégradable peut être employée pour séparer la boue comprenant des particules de clinker de la formation entourant le puits de forage pendant l'hydratation des particules de clinker.
Bibliography:Application Number: CA20183081093