润滑科技信息平台

专利摘要

多功能涂料和化学添加剂,包括润滑剂、微米/纳米纹理颗粒、乳化剂、水凝胶聚合物、改性水凝胶聚合物的交联剂、保护生物基材料的抗菌剂和水溶剂,可用于水力压裂直接应用于支撑剂表面,或/和与其他减摩剂添加剂混合以全部或部分替代常规减摩剂化学品,或者作为添加剂组分掺混或混入常规压裂液中,以便于将支撑剂泵入井下并稳定压裂液。泵送压力; 有利于油井产能,有效抑制和降低在制造厂、码头和石油应用领域运输和处理涂层材料时产生的可吸入微晶粉尘的风险,无需对涂层产品进行干燥操作。 ......

基本信息

专利类型:
发明专利
申请/专利号:
US17/434968
申请日期:
2021-04-15
专利申请人:
分类号:
C09K8/80; C09K8/88
发明/设计人:
LIU, FEIPENG ， LAI, YUNING
权利要求: 1) Chemical composition or/and coatings are comprising of by percentage weight:a. liquid lubricant or/and non-polar solvent from 1% to 99%b. micro-nano/textured dot dual phobic domains from 0.01 to 40%c. hydrogel polymers: 0.001 to 35%d. surfactant or/and emulsifiers: 0.005 to 20.0%e. water as solvent: 1.0% to 99.0%f. a combination of the above components as a coating featured with anti-blocking and anti-sticking from grains to grains in the material's handling processes in which a drying operation on wet sand and granular particles coated with the disclosed coating becomes unnecessary or redundant.2) The chemical composition of claim 1, wherein the lubricant or/and non-polar solvent is mineral oil, saturated hydrocarbon, alkyl chains of ethylene carbon, liquid paraffin, kerosene, petroleum distillates, and higher alkanes, cyclo-alkanes, the alkyl carbon chain from C6 to C20, the dosage levels of the lubricant or/and non-polar solvent is ranged from 1% to 99% over the total percentage by weight.3) The chemical composition of claim 1, wherein the chemical compositions of micro-nano/textured dot dual phobic domains are candle wax, paraffin wax, slick wax, or ethylene stearamide, bis-stearamide synthesis wax, carnauba wax, natural organic and organic synthesized wax that have a melting point of at least 35° C. or above, or/and biomaterials or their derivatives such as sweet rice floor, soy wax, soy protein isolate (SPI) particles, soy protein concentrates, or/and its derivatives from SPI functionalized with amine or hydroxyl, carboxyl, and aldehyde, ester, amide and polyamide functionalities, or/and the combination of petroleum based or bio-based materials, polylactic acid ester, inorganic particles such as modified hydrophobic/hydrophilic silica particles, or the combination of organic and inorganic particles, therefore, the dosage level of these hydrophobic/hydrophilic domain's materials is ranged from 0.01% to 40%.4) The chemical composition of claim 1, wherein the hydrogel polymers are polyacrylate anionic, or cationic, or nonionic polymers or hydrolyzed acrylate sodium acrylamide polymers, the mixed combination of these polymers and their copolymers functionalized with functional groups of amine, hydroxyl, and carboxyl, and aldehyde, sulfonate, and cyclic amine and vinyl functional groups, having linear, or/and branded, or/and dendrimer's structure, the dosage level of hydrogel polymers is ranged from to 35% by weight percentage over the total weight, preferred less than 15.0%, more preferred less than 5%.5) The chemical composition of claim 1, wherein the emulsifiers are linear, di-, tri- or multi-branched surfactants, with cationic, anionic, amphoteric, nonionic, and zwitterionic surfactants and/or their combination therefore, the total dosage level of surfactant/emulsifiers is ranged from 0.001 to 20.0%, preferred less than 3.0%.6) The chemical composition of claim 3 or/and its combination with claim 4, wherein it is modified by cross-linking additive chemicals containing reactive functional groups, such as isocyanate, epoxy, unsaturated ethylene double bonds, amide, imide, silane, aldehyde, amine, and carboxylic acid, et al., that can cross-link the hydrogel polymer into flexible and elastic network structure and polyamido-amine epichlorohydrin (PAE) into a wet strength polymer network, the cross-linking additives could be added as mixed with others pre-added, simultaneously, or post-added, the dosage level of cross-linking agents is ranged from 0.0% to 200% over claim 3 or/and their combined percentage of weight as 100% base weight.7) The chemical composition of claim 3, wherein, it is mixed with additives containing antimicrobial agent and compounds, and/or anti-fermentation agents, such as glutaraldehyde, sodium bicarbonate, fatty amine, or zwitterionic surfactants, benzyl-c12-16-dimenthyl ammonium chloride, biocide 2,2-dibromo-3-Nitripronanioe (DBNPA), copper oxide nano-particles, copper sulfate solution, the dosage levels of the antimicrobial agents are ranged from 0 to 200% over the claim 3 additives by weight percentage, preferred less than 100.0%, or less than 1.0%.8) The chemical composition of claim 1, wherein, the liquid lubricant or mineral oil of claim 2 is added into a container first, then, the composition of claim 3 charged into the container following pre-determined wt. percentage, the blended components from lubricant/mineral oil with domain materials are stirred and heated to 140° F. or above, alternatively, cross-linking agents of claim 6 or antimicrobial agents of claim 7 are added into the mixed components of mineral oil and domain materials to achieve desirable synergy or post added into the mixture.9) The chemical composition of claim 8, wherein, the hydrogel gel polymer of claim 4 and surface emulsifiers of claim 5 are added into the mixed components of claim 8 in a sequence or simultaneously after all of components are blended uniformly at a solution temperature of above 140° F. or so.10) The chemical composition of claim 9, wherein, water or other polar solvent is added to adjust the viscosity of the mixed components into a hydrated viscosity within a range by wt. percentage from 1.0 (cP) to 50,000 (cP), preferred hydrated viscosity less than 100 (cP), more than 50.0 (cP), more than 20 (cP).11) The chemical composition of claim 10, wherein, the solid content of the mixed components measured is within a range by weight percentage from 0.5% to 60.0%, preferred less than 10.0%, more preferred less than 5.0%.12) The chemical composition of claim 11, wherein, it is used as an emulsion to coat on a solid substrate, directly through spraying nozzles or mixed in a rotary mixer, including proppants, frac sand, ceramics, bauxite, glass spherical particles, walnut shell particles, silica particles and surface modified particles materials.13) The chemical composition of claim 11, wherein, a friction reducer in powder or liquid solution can be pre-blended or post blended, or simultaneously blended with claimed proppants in claim 12, then, the chemical composition of claim 11 or mixture of friction reducer and claimed coating 11 is coated on the proppant surface within a range from 0 to 6.0%, preferred less than 3.0%, or preferred less than 1.5%, 1.0% on the friction reducer to the proppants.14) The chemical composition of claim 11, wherein, the coating as chemical additives can be directly added into water as frac fluid agent or diluted with water in a ratio of claimed emulsion chemicals of claim 11 to water from 20:80 and 100:0, preferred within a range from 30:70 and 50:50 in the downhole condition.15) The chemical composition of claim 13, wherein, the coated proppants can reduce the respirable microcrystalline silica dust concentration by more than 95.0% in comparison with the untreated proppants, preferred by 97.0%, 98.0%, 99.0%, 99.50%, and 99.95%.16) The chemical composition of claim 13, wherein, it can be blended with other fracturing fluid additives to provide increased hydrated viscosity, preferred dose level of the emulsion into fracturing fluid by wt. from 0 to 50%, preferred less than 40.0%, more preferred less than 25.0%.17) The chemical composition of claim 11, wherein, it can be blended with high salinity frac water, or reused product water, or/and wasted frac fluid with increased frac fluid viscosity within a range of salt content (sodium chloride) from 0.01% to 26% by w/w at a regular ambient temperature of 25 OC.18) The chemical composition of claim 11, wherein, it can sustain a high well bottomhole temperature from 30° C. to 200° C.19) The chemical composition of claim 11, wherein, the coated proppants mixed with fracturing fluids can reduce the pumping pressure by more than 25%, preferred 50%, more preferred more than 70% pumping pressure reduction.20) The chemical composition of claim 13, wherein, friction reducer in powder can be blended or added with claimed coating of claim 20. The preferred dose level of added friction reducer in powder by wt. percentage over proppants within a range of from 0.0% to 1.50%, preferred 0.25% to 1.15% over proppant weight.21) The chemical composition of claim 13, wherein, the water absorbed rate of coated proppants is swollen as high as more than 30.0% useful for reducing water usage, preferred than 35.0%.22) The chemical composition of claim 13, wherein the pH value can be adjusted from 2.0 to 13.0, preferred more than 7.0 and less than 9.0.23) The chemical composition of claim 11, wherein, the dried coating on the glass substrate has a sliding contact angle of larger than 70° without rolling down the tilted flatten surface, not less than 90 degree, characterized as a hydrophobic coating profiled by micro-nano/textured morphology having a pinning of water droplet with sliding contact angle less than 130 degree, preferred less than 120 degree at a water microdroplet weight of not less than 0.0246 (g), alternatively, the coating is also a hydrophilic coating by which the contact angle of the coatings to water less than 90 (degree), resulting in a hydro-dual-phobic coating surface of the proppants.