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US 2011/0214870 A1Published application
Lost circulation composition
OwnerMano Shaarpourinventor
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OwnerMano Shaarpourinventor
Estimating the term…
A composition of matter and a method of sealing a permeable formation are provided incorporating the composition to reduce or eliminate lost circulation in permeable formations up to at least 6000 psi. The composition comprises one or more sealing components, a wetting component, a viscosifier component, an activator or flocculant component, and an extender. A dry mixture of the components may be added directly from the bag to the drilling mud up to the rate of 90 pounds per barrel. The mixture will seal the formation in an aqueous or organic environment. The mixture de-waters at a rapid rate without regard to the time and temperature required for curing agents or other additives. The mixture may be weighted and does not require additional agents such as defoamers, accelerators, retarders or spacers to de-water and set as a solid plug.
A lost circulation remediation composition comprising a dry mixture of:
A weighted lost circulation remediation composition comprising:
A method of preparing a lost circulation remediation composition comprising mixing together diatomaceous earth, cellulosic newsprint, nut shells, wood flour, gilsonite, perlite, xanthan gum, mineral wool and lime, wherein the composition comprises between approximately 33% and approximately 43% by weight of diatomaceous earth, between approximately 6% and approximately 25% by weight of cellulosic newsprint, between approximately 5% and approximately 15% by weight of nut shells, between approximately 6% and approximately 16% by weight of wood flour, between approximately 5% and approximately 15% by weight of gilsonite, between approximately 1% and approximately 4% by weight of perlite, between approximately 1% and approximately 3% by weight of xanthan gum, between approximately 1% and approximately 4% by weight of lime, and between approximately 1% and approximately 20% by weight of mineral wool, wherein the weight totals 100%.
Dependencies are inferred from the claim text.