公开(公告)号：WO2022211938A1

公开(公告)日：2022-10-06

申请号：PCT/US2022/017816

申请日：2022-02-25

Applicant: LIU, Feipeng ,  LAI, Yuning

Inventor： LIU, Feipeng ,  LAI, Yuning

IPC: C04B28/00 ,  C09K8/80 ,  C08F220/56 ,  C09D133/08 ,  C09D133/26 ,  C09D5/00 ,  C09D7/61 ,  C09D7/63 ,  C09K2208/10 ,  C09K2208/28 ,  C09K2208/34 ,  C09K8/805

Abstract: Bioinspired chemical additives, coating, or/and solution, in mimicking biomineralization processes of bone, useful for enhancing the strength of hydraulic- cement concrete and mitigating the risk of its cracking failure, comprising of micro/nano/textured dual phobic dot domains as core layer, hydrogel polymer as shell, prepared by water and mineral oil as solvent via surfactant/emulsifier as intermediate layer encapsulated in an emulsion, were mixed with cement, fine sand, and aggregates by weight percentage at a mix ratio of from 0.00001/99.99999 to 10.0/90, of which the ratio of water to cement is ranged from 0.2 to 0.80 (W/C), the volume fraction of cement accounted for total volume fraction of solid from 5 to 50%, the fine sand from 40% to 90%, and aggregate from 40% to 90% as water dried, a replacement of cement with cementitious materials such as microcrystalline silica sand, micro gel, and swollen clays ranged from 0.01% to 75% over the cement by weight percentage, casted into concrete blocks having an early age of compressive strength of more than 4000 (PSI) within 24 hour, Brazilian splitting tensile strength of more than 1000 (psi) at 28 days, ultimate compressive strength of more than 7500 (PSI) after exposed at the ambient conditions for over one and half year, an increased toughness of more than 900 (%), modulus of resilience of more than 1300 (%), self-healing capability of more than 80(%) by pre-cracking test method, density ranged from 1.90 to 2.55 (g/cm3), moisture content loss of less than 3.0%, resulting from the contributions of the tunable self- assembly of dispersive and non-covalent bonds in response to the exothermic hydration of micro/nano/textured hydro dual phobic domains of proteins, wax, and hydrogel polymers with mixed concrete components from 30 to 200 °F.

公开(公告)号：WO2022211825A1

公开(公告)日：2022-10-06

申请号：PCT/US2021/027426

申请日：2021-04-15

Applicant: LIU, Feipeng ,  LAI, Yuning

Inventor： LIU, Feipeng ,  LAI, Yuning

IPC: C09K8/536 ,  C09D7/40 ,  C09K8/80 ,  C09K8/92

Abstract: Multifunctional coatings and chemical additives, comprising of lubricant, micro/nano-textured particles, emulsifiers, hydrogel polymers, cross-linking agent to modify the hydrogel polymers, antimicrobial to preserve the bio-based materials, and water solvent, are useful in hydraulic fracturing operation either directly applied on the surface of proppants, or/and mixed with other friction reducer additives to totally or partially substitute the regular friction reducer chemicals, alternatively, as additive components blended or mixed into regular fracturing fluid for easily pumping proppants downhole and stabilizing the pumping pressure; beneficial to the well productivity, effectively suppress and mitigate the risk of respirable microcrystalline dust as the coated materials are transported and handled in the manufacturing plant, terminal, and oil application fields without a need for drying operation on the coating products.

公开(公告)号：WO2022186991A1

公开(公告)日：2022-09-09

申请号：PCT/US2022/016847

申请日：2022-02-17

Applicant: LIU, Feipeng

Inventor： LAI, Yuning

IPC: C09K8/035 ,  C09K8/66 ,  C09K8/68 ,  C09K8/88

Abstract: Chemical additives useful for hydraulic fracturing operation are comprising of lubricant/nonpolar solvents; hydro-dual-phobic domains as core encapsulated by emulsifiers as shell, suspended in water by hydrogel polymers as hydrophilic domains; soy protein isolate (SRI) and sweet rice flour were modified with crosslinking polymers of isocyanate as hydrophobic domains, which is incorporated into the frac fluid as a standard alone friction reducer solution or as an enhancer of frac fluid viscosity of the final frac fluid products in high salinity brines having a concentration as high as 25.0% at an ambient temperature at a downhole well temperature from 30 to 300°0 F.