Back to results
US 7,741,249 B2Granted
Geosynthetic composite for borehole strengthening
AssigneeShell Oil Company
InventorKenneth Michael Cowan
Life of this patent
Estimating the term…
Abstract
Disclosed is a composition comprising a chemical formulation useful for creating geosynthetic composites in-situ that includes a melamine-formaldehyde resin in a non-aqueous drilling fluid.
Claims45
A composition useful for creating geosynthetic composites in-situ, said composition including:
- a) at least one reactive component selected from:
- at least one melamine-formaldehyde resin, or a blend of melamine-formaldehyde resins blended with at least one polyol and/or poly (hydroxy) ether or a blend of polyols and poly(hydroxy) ether(s);
- wherein said selected reactive component is soluble in non-aqueous drilling fluids and invert emulsion drilling fluids containing C7 to C20 olefins, esters, paraffinic oils and blends thereof, and also soluble in diesel and mineral oils and blends thereof with C7 to C20 olefins, esters, and paraffinic oils;
- and
- b) at least one additional additive selected from the group consisting of coupling agents, suspending agents, dyes, weighting agents, lost circulation materials, and combinations thereof;
- further comprising a saturated thermoplastic elastomer.
3 more elements
A composition useful for creating geosynthetic composites in-situ, said composition including:
- a) at least one reactive component selected from:
- at least one melamine-formaldehyde resin, or a blend of melamine-formaldehyde resins blended with at least one polyol and/or poly(hydroxy)ether or a blend of polyols and poly(hydroxy)ether(s);
- wherein said selected reactive component is soluble in non-aqueous drilling fluids and invert emulsion drilling fluids containing C7 to C20 olefins, esters, paraffinic oils and blends thereof, and also soluble in diesel and mineral oils and blends thereof with C7 to C20 olefins, esters, and paraffinic oils;
- and
- b) at least one additional additive selected from the group consisting of coupling agents, suspending agents, dyes, weighting agents, lost circulation materials, and combinations thereof;
- wherein the selected reactive component is blended with a polyol that is soluble in the reactive component and also in a hydrocarbon phase of the drilling/completion fluid.
3 more elements
A composition useful for creating geosynthetic composites in-situ, said composition including:
- a) at least one reactive component selected from:
- at least one melamine-formaldehyde resin, or a blend of melamine-formaldehyde resins blended with at least one polyol and/or poly(hydroxy)ether or a blend of polyols and poly(hydroxy)ether(s);
- wherein said selected reactive component is soluble in non-aqueous drilling fluids and invert emulsion drilling fluids containing C7 to C20 olefins, esters, paraffinic oils and blends thereof, and also soluble in diesel and mineral oils and blends thereof with C7 to C20 olefins esters and paraffinic oils;
- and
- b) at least one additional additive selected from the group consisting of coupling agents, suspending agents, dyes, weighting agents, lost circulation materials, and combinations thereof;
- wherein the reactive component is blended with a poly(hydroxy)ether that is soluble in the reactive component and also in a hydrocarbon phase of the drilling/completion fluid.
3 more elements
A composition useful for creating geosynthetic composites in-situ, said composition including:
- a) at least one reactive component selected from:
- at least one melamine-formaldehyde resin, or a blend of melamine-formaldehyde resins blended with at least one polyol and/or poly(hydroxy)ether or a blend of polyols and poly(hydroxy)ether(s);
- wherein said selected reactive component is soluble in non-aqueous drilling fluids and invert emulsion drilling fluids containing C7 to C20 olefins esters paraffinic oils and blends thereof, and also soluble in diesel and mineral oils and blends thereof with C7 to C20 olefins, esters, and paraffinic oils;
- and
- b) at least one additional additive selected from the group consisting of coupling agents, suspending agents, dyes, weighting agents, lost circulation materials, and combinations thereof;
- further comprising a mutual solvent selected from the group consisting of glycol ethers, polyglycol ethers or glycol ether esters.
3 more elements
A composition useful for creating geosynthetic composites in-situ, said composition including:
- a) at least one reactive component selected from:
- at least one melamine-formaldehyde resin, or a blend of melamine-formaldehyde resins blended with at least one polyol and/or poly(hydroxy)ether or a blend of polyols and poly(hydroxy)ether(s);
- wherein said selected reactive component is soluble in non-aqueous drilling fluids and invert emulsion drilling fluids containing olefins, esters, paraffinic oils and blends thereof, and also soluble in diesel and mineral oils and blends thereof with C7 to C20 olefins esters and paraffinic oils;
- and
- b) at least one additional additive selected from the group consisting of coupling agents, suspending agents, dyes, weighting agents, lost circulation materials, and combinations thereof;
- further including an inhibitor selected from the group consisting of quinones, hydroquinones, and catechols.
3 more elements
A composition useful for creating geosynthetic composites in-situ, said composition including:
- a) at least one reactive component selected from:
- at least one melamine-formaldehyde resin, or a blend of melamine-formaldehyde resins blended with at least one polyol and/or poly(hydroxy)ether or a blend of polyols and poly(hydroxy)ether(s);
- wherein said selected reactive component is soluble in non-aqueous drilling fluids and invert emulsion drilling fluids containing C7 to C20 olefins, esters, paraffinic oils and blends thereof, and also soluble in diesel and mineral oils and blends thereof with C7 to C20 olefins, esters, and paraffinic oils;
- and
- b) at least one additional additive selected from the group consisting of coupling agents, suspending agents, dyes, weighting agents, lost circulation materials, and combinations thereof;
- further comprising at least one reactive ester having at least one carbon-carbon double bond selected from vinyl esters of versatic acids and vinyl esters of long chain fatty acids, individually, or a blend thereof, at least one unsaturated thermoplastic elastomer containing at least one carbon-carbon double bond soluble in the reactive ester;
- and at least one di- or tri-functional acrylate or methacrylate monomer.
4 more elements
Dependencies are inferred from the claim text.