Silane additives for improved sand strength and conductivity in fracturing applications
US-2017218263-A1 · Aug 3, 2017 · US
US11945993B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11945993-B2 |
| Application number | US-202117390089-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2021 |
| Priority date | Jul 30, 2021 |
| Publication date | Apr 2, 2024 |
| Grant date | Apr 2, 2024 |
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A method may include: introducing a silane based aqueous soluble resin into a wellbore, wherein the silane based aqueous soluble resin comprises a glycidyl alkoxy silane containing resin and an amino alkoxy silane hardener. The silane based aqueous soluble resin may include 3-glycidoxypropyl trimethoxy silane and n-(3-(trimethoxysilyl)propyl)ethylenediamine.
Opening claim text (preview).
What is claimed is: 1. A method comprising: preparing a resin containing cement composition comprising: cement; water; defoamer; and a silane based aqueous soluble resin, wherein the silane based aqueous soluble resin comprises a glycidyl alkoxy silane resin comprising 3-glycidoxypropyl trimethoxy silane and an amino alkoxy silane hardener comprising n-(3-(trimethoxysilyl)propyl)ethylenediamine, wherein the 3-glycidoxypropyl trimethoxy silane and the n-(3-(trimethoxysilyl)propyl)ethylenediamine represents at least 10% by volume of the resin containing cement composition, wherein the resin is in an amount of about 21% to about 40% by volume of the silane based aqueous soluble resin, wherein the silane based aqueous soluble resin has a glass transition temperature of greater than 230° F. (110° C.); and introducing the resin containing cement composition into a wellbore. 2. The method of claim 1 , wherein the silane based aqueous soluble resin further comprises at least one glycidyl alkoxy silane resin selected from the group consisting of (3-glycidoxypropyl)triethoxysilane, (3-glycidoxypropyl)methyldiethoxysilane, (3-glycidoxypropyl)methyldimethoxysilane, (3-glycidoxypropyl)dimethylethoxysilane, (3-glycidoxypropyl)dimethylmethoxysilane, and combinations thereof. 3. The method of claim 1 , wherein the silane based aqueous soluble resin further comprises at least one amino alkoxy silane hardener selected from the group consisting of 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 4-aminobutyltriethoxysilane, 3-(triethoxysilyl)propyl ethylenediamine, and combinations thereof. 4. The method of claim 1 , wherein at least a portion of silane based aqueous soluble resin is allowed to enter into and harden in a perforation in a cement sheath within the wellbore. 5. The method of claim 1 , wherein silane based aqueous soluble resin is used in primary cementing. 6. A method comprising: preparing a resin containing cement composition comprising a hydraulic cement, water, a defoamer, and a silane based aqueous soluble resin, wherein the silane based aqueous soluble resin comprises a glycidyl alkoxy silane resin comprising 3-glycidoxypropyl trimethoxy silane and an amino alkoxy silane hardener comprising n-(3-(trimethoxysilyl)propyl)ethylenediamine, wherein the 3-glycidoxypropyl trimethoxy silane and the n-(3-(trimethoxysilyl)propyl)ethylenediamine represents at least 10% by volume of the resin containing cement composition, wherein the resin is in an amount of about 21% to about 40% by volume of the silane based aqueous soluble resin, wherein the silane based aqueous soluble resin has a glass transition temperature of greater than 230° F. (110° C.); and introducing the resin containing cement composition into a wellbore. 7. The method of claim 6 , wherein the hydraulic cement comprises at least one selected from the group consisting of Portland cements, pozzolana cements, gypsum cements, high-alumina-content cements, slag cements, silica cements, and combinations thereof. 8. The method of claim 6 , wherein the resin containing cement composition further comprises a resin selected from the group consisting of an epoxy-based resin, a novolac resin, a polyepoxide resin, a phenol-aldehyde resin, a urea-aldehyde resin, a urethane resin, a phenolic resin, a furan/furfuryl alcohol resin, a phenolic/latex resin, a phenol formaldehyde resin, a bisphenol A diglycidyl ether resin, a butoxymethyl butyl glycidyl ether resin, a bisphenol A-epichlorohydrin resin, a bisphenol F resin, a glycidyl ether resin, a polyester resin and copolymer thereof, a polyurethane resin and copolymer thereof, an acrylate resin, and combinations thereof. 9. The method of claim 6 , wherein the resin containing cement composition further comprises a hardening agent selected from the group consisting of an aliphatic amine, an aliphatic tertiary amine, an aromatic amine, a cycloaliphatic amine, a heterocyclic amine, an amido amine, a polyamide, a polyethyl amine, a polyether amine, a polyoxyalkylene amine, a carboxylic anhydride, triethylenetetraamine, ethylene diamine, N-cocoalkyltrimethylene, isophorone diamine, N-aminophenyl piperazine, imidazoline, 1,2-diaminocyclohexane, polytheramine, diethyltoluenediamine, 4,4′-diaminodiphenyl methane, methyltetrahydrophthalic anhydride, hexahydrophthalic anhydride, maleic anhydride, polyazelaic polyanhydride, phthalic anhydride, and combinations thereof. 10. The method of claim 6 , wherein the resin containing cement composition further comprises a diluent is selected from the group consisting of butyl glycidyl ether, cyclohexane dimethanol diglycidyl ether, polyethylene glycol, butyl lactate, dipropylene glycol methyl ether, dipropylene glycol dimethyl ether, dimethyl formamide, diethyleneglycol methyl ether, ethyleneglycol butyl ether, diethyleneglycol butyl ether, propylene carbonate, d-limonene, fatty acid methyl esters, and any combinations thereof. 11. The method of claim 6 , wherein the resin containing cement composition comprises about 5% to about 20% by volume of the silane based aqueous soluble resin. 12. The method of claim 6 , wherein the silane based aqueous soluble resin comprises at least one glycidyl alkoxy silane resin selected from the group consisting of 3-glycidoxypropyl trimethoxy silane, (3-glycidoxypropyl)triethoxysilane, (3-glycidoxypropyl)methyldiethoxysilane, (3-glycidoxypropyl)methyldimethoxysilane, (3-glycidoxypropyl)dimethylethoxysilane, (3-glycidoxypropyl)dimethylmethoxysilane, and combinations thereof. 13. A method comprising: preparing a resin containing cement composition comprising a hydraulic cement, water, a defoamer, and a silane based aqueous soluble resin, wherein the silane based aqueous soluble resin comprises a glycidyl alkoxy silane resin comprising 3-glycidoxypropyl trimethoxy silane and an amino alkoxy silane hardener comprising n-(3-(trimethoxysilyl)propyl)ethylenediamine, wherein the 3-glycidoxypropyl trimethoxy silane and the n-(3-(trimethoxysilyl)propyl)ethylenediamine represents at least 10% by volume of the resin containing cement composition, wherein the resin is in an amount of about 21% to about 40% by volume of the silane based aqueous soluble resin, wherein the silane based aqueous soluble resin has a glass transition temperature of greater than 230° F. (110° C.); and introducing the resin containing cement composition into a wellbore, wherein the silane based aqueous soluble resin further comprises at least one amino alkoxy silane hardener selected from the group consisting of 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 4-aminobutyltriethoxysilane, 3-(triethoxysilyl)propyl ethylenediamine, and combinations thereof.
for plugging · CPC title
Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34 · CPC title
obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
containing organic binders only · CPC title
Density reducing additives, e.g. for obtaining foamed cement compositions · CPC title
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