Methods for preparing coating compositions for protecting oilfield operational components
Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.
1. A method for preparing a coating composition for application to at least a portion of an oilfield operational component to reduce damage induced by flow of an oilfield fluid, the method comprising:
providing trifunctional silane;
providing silanol fluid;
providing filler;
providing titanium dioxide;
combining the trifunctional silane, the silanol fluid, the titanium oxide, and the filler; and
mixing one or more of the trifunctional silane, the silanol fluid, the titanium dioxide, or the filler to obtain the coating composition, the coating composition being configured to form a coating layer on the at least a portion of the oilfield operational component, the coating layer configured to reduce damage induced by flow of an oilfield fluid, such that the oilfield operational component exhibits a comparison factor indicative of an increased resistance to wear ranging from about 2 to about 30, the comparison factor being indicative of a first amount of time during which the at least a portion of the coating layer wears to a first depth divided by a second amount of time during which the at least a portion of the oilfield operational component without the coating wears to a second depth equal to the first depth.
2. The method of claim 1 , further comprising providing blue pigment, and mixing the blue pigment with one or more of the trifunctional silane, the silanol fluid, titanium dioxide, or the filler to obtain the coating composition.
3. The method of claim 1 , wherein mixing comprises mixing the trifunctional silane, the silanol fluid, the titanium dioxide, and the filler to obtain a substantially homogeneous coating composition.
4. The method of claim 1 , further comprising providing a solvent and mixing the solvent with the coating composition.
5. The method of claim 4 , wherein the solvent comprises at least one of xylene or mineral spirits.
6. The method of claim 5 , wherein the solvent comprises from about 10 parts to about 300 parts by weight for 100 parts by weight of non-solvent components.
7. The method of claim 1 , further comprising providing a catalyst and mixing the catalyst with the coating composition.
8. The method of claim 7 , wherein the catalyst comprises a tin catalyst.
9. The method of claim 1 , wherein the trifunctional silane comprises at least one of an acetoxy silane, a ketoximino silane, an enoxy silane, an amine silane, an alkoxy silane, or alkenyl silane, ethyl triacetoxysilane, vinyl triacetoxysilane, methyl tris (methyl-ethyl-ketoximino) silane, or vinyl tris (methyl-ethyl-ketoximino) silane.
10. The method of claim 1 , wherein the silanol fluid comprises at least one of polydialkylated siloxane, polydimethylsiloxane, or hydroxyl-terminated polydimethylsiloxane.
11. The method of claim 1 , wherein the filler comprises fumed silica, glass fiber, mica, wollastonite, kaolin, or phylosilicates.
12. The method of claim 11 , wherein the filler comprises fumed silica, and the method further comprises treating the fumed silica with a treatment agent prior to mixing the fumed silica with the coating composition.
13. The method of claim 12 , wherein the treatment agent comprises at least one of hexamethylenedisilazane, divinyltetramethylenedisilazane, chlorosilane, or polydimethyl siloxane.
14. The method of claim 1 , wherein:
the trifunctional silane comprises from about 0.01 wt. % to about 20 wt. % of the coating composition on the basis of non-solvent components;
the silanol fluid comprises from about 40 wt. % to about 99 wt. % of the coating composition on the basis of non-solvent components; and
the filler comprises from about 0.01 wt. % to about 25 wt. % of the coating composition on the basis of non-solvent components.
15. The method of claim 1 , wherein one or more of the trifunctional silane, the silanol fluid, or the filler are configured to cure and form ethyl T-resin units, each of the ethyl T-resin units forming two or more bonds with one or more of other ethyl T-resin units, silanol fluid, fillers, or pigments.
16. The method of claim 15 , wherein the coating composition comprises an amount of ethyl T-resin units ranging from about 1.5 wt % to about 5.0 wt % of the coating composition on the basis of non-solvent components.
17. The method of claim 1 , further comprising providing pigment, and mixing the pigment with one or more of the trifunctional silane, the silanol fluid, the titanium dioxide, or the filler to obtain the coating composition.
18. The method of claim 17 , wherein the coating composition comprises an amount of pigment ranging from about 1.0 wt % to about 5.0 wt % of the coating composition on the basis of non-solvent components.
19. The method of claim 1 , wherein the coating composition comprises an amount of silanol fluid ranging from about 75.0 wt % to about 85.0 wt % of the coating composition on the basis of non-solvent components.
20. The method of claim 1 , wherein the filler comprises fumed silica, and the coating composition comprises an amount of fumed silica ranging from about 13.0 wt % to about 17.0 wt % of the coating composition on the basis of non-solvent components.
21. A method for preparing a coating composition for application to at least a portion of an oilfield operational component to reduce damage induced by flow of an oilfield fluid, the method comprising:
providing trifunctional silane;
providing silanol fluid;
providing titanium dioxide;
providing filler;
providing blue pigment;
combining the trifunctional silane, the silanol fluid, the titanium dioxide, the filler, and the blue pigment; and
mixing the blue pigment with one or more of the trifunctional silane, the silanol fluid, or the filler to obtain the coating composition, the coating composition being configured to form a coating layer on the at least a portion of the frac iron component, the coating layer configured to reduce damage induced by flow of an oilfield fluid, such that the oilfield operational component exhibits a comparison factor indicative of an increased resistance to wear greater than about 2, the comparison factor being indicative of a first amount of time during which a portion of the coating layer wears to a first depth divided by a second amount of time during which a portion of the oilfield operational component without the coating wears to a second depth equal to the first depth.
22. The method of claim 21 , wherein the coating composition comprises an amount of blue pigment ranging from about 1.0 wt % to about 5.0 wt % of the coating composition on the basis of non-solvent components.