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WO/2024/002048A1 |
Disclosed in the present invention are a viscoelastic foam system of an acid gas switch and a method and use for improving the recovery ratio by using the viscoelastic foam system. The viscoelastic foam system of an acid gas switch of th...
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WO/2024/006588A1 |
Geopolymeric compositions are presented that are useful as geopolymer slurries for cementing subterranean wells. The slurries may contain an aluminosilicate source,, an alkaline source and a carrier fluid. The slurries generate an alkali...
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WO/2024/005670A1 |
A composition for enhancing oil recovery includes the non-ionic surfactant Neonol AF 9-6 and the following anionic surfactants: petroleum sulphonates, a mixture of alpha-olefin sulphonates with a carbon number of C14 and C16, a mixture o...
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WO/2024/001425A1 |
Disclosed in the present invention is a preparation method for an interfacial active agent for improving a recovery ratio of a low-permeability sandstone reservoir. The method comprises two steps, i.e., preparation of a deep eutectic sol...
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WO/2023/246505A1 |
The present invention relates to a method for inhibiting biogenic hydrogen sulfide in an oil field. A synergistic inhibition system combination agent containing Bacillus licheniformis GW1 is added into an oil field system, wherein the Ba...
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WO/2023/250194A1 |
The aqueous phase of a drilling fluid can be provided with self-adjusting alkalinity by introducing a buffering system, where the buffenng system includes a buffering agent, an acid or a base, and an inorganic salt, and where the pH of t...
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WO/2023/245994A1 |
Provided in the present invention are an ultra-high-temperature-resistant cement slurry system for well cementation, and a preparation method therefor and the use thereof. The cement slurry system comprises cement, an ultra-high temperat...
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WO/2023/244273A1 |
A cement composition can include water and a blended cement. The cement composition can be free of Portland cement. The blended cement can include cement and a supplementary cementitious material. The cement can be calcium aluminate ceme...
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WO/2023/238675A1 |
A polyvinyl alcohol polymer obtained by saponification of a copolymer of a vinyl ester monomer and a polyfunctional monomer that includes at least two polymerizable unsaturated bonds in the molecule thereof, the polyvinyl alcohol polymer...
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WO/2023/238674A1 |
This polyvinyl alcohol-based polymer is obtained through saponification of a copolymer of a vinyl ester monomer and a trifunctional monomer, and is characterized in that the average degree of polymerization of the polyvinyl alcohol-based...
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WO/2023/240004A1 |
A composition including a powder and a liquid treatment chemical is provided. The powder includes sodium bicarbonate, calcium carbonate, citric acid, oxalic acid, palmitic acid, tartaric acid, and/or maleic acid. The liquid treatment che...
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WO/2023/239252A1 |
A composition that includes a fluorescent metal-organic framework (MOF) and a drilling fluid is provided. The MOF includes a porous, crystalline structure and a fluorescent source. A method includes introducing a MOF into a drilling flui...
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WO/2023/231990A1 |
Disclosed in the present invention are a polyoxymethylene nanosheet or a polyoxymethylene copolymer nanosheet and a preparation method therefor. The preparation method comprises the following steps: (1) mixing a surfactant and a monomer ...
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WO/2023/234972A1 |
A dissolvable magnesium alloy can be used for components of a downhole tool. The dissolvable magnesium alloy can be dissolved completely and controlled at a dissolving rate so as to be compatible with downhole operations, including hydra...
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WO/2023/233273A1 |
The present disclosure relates to a process for preparing a salt of 4-hydroxy pentadecyl benzene sulfonic acid. The process comprises reacting 3-N- Pentadecylphenol with sulphuric acid and neutralizing the 4-hydroxy pentadecyl benzene su...
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WO/2023/230955A1 |
A cosmetic skincare emulsion is free from silicones, synthetic polymers, polyalkoxylated compounds, especially polyethylene glycols and polyethylene derivatives. The cosmetic skincare emulsion develops hardly any foam and does not leave ...
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WO/2023/230452A1 |
The subject invention provides scale inhibitors and/or dispersants comprising microbial surfactants, or biosurfactants, as well as methods of their use for removing metal sulfide scale deposits and/or preventing the precipitation and/or ...
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WO/2023/230328A1 |
A scale inhibitor squeeze treatment is enhanced by injecting a pre-flush solution into a wellbore, where the pre-flush solution includes at least one organic carbonate solvent, such as a dialkyl carbonate and/or a cyclic carbonate. The u...
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WO/2023/011800A9 |
Use of complex polyester amines and polyester quaternary ammonium compounds as corrosion inhibitors for metal surfaces, and a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibi...
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WO/2023/230546A1 |
A method of treating a carbonate formation includes introducing a stimulation fluid into the carbonate formation at a pressure greater than a fracture pressure of the formation and creating openings in the carbonate formation via the sti...
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WO/2023/230338A1 |
Halite scales in an oilfield brine that has a potential for halite scaling can have halite scale formation inhibited or prevented by adding an effective amount of an additive, where the additive contains at least one non-water-soluble qu...
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WO/2023/224967A1 |
A well treatment composition wax removal additives for the cleaning of a well containing hydrocarbons waxes. The wax removal additives comprise nano polysaccharides. A method of cleaning a hydrocarbon well containing at least one of wax,...
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WO/2023/221303A1 |
The present invention provides a flow pattern regulator for a water-based drilling fluid. The flow pattern regulator is prepared by carrying out a polymerization reaction on the following raw materials: 10-40% of a first monomer, 40-70% ...
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WO/2023/225394A1 |
Composite cement compositions and pumpable slurries for cementing well or at least one zone of the wells are provided and comprise cementitious material that forms calcium silicate hydrates upon exposure to water, inert filler material, ...
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WO/2023/223261A1 |
A method to increase the temperature stability of a first blend and a second blend used in the preparation of a reconstituted aqueous composition comprising lysine monohydrochloride, said process comprising the steps of: - providing a fi...
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WO/2023/225188A1 |
Composite cement compositions and slurries for treating a well following a water-based wellbore operation are provided and comprise cement comprising at least one of cement particles and cementitious material, water, and water swellable ...
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WO/2023/219754A1 |
According to embodiments disclosed herein, a corrosion-resistant substrate may comprise a substrate comprising a first surface and a corrosion-resistant film positioned on at least a portion of the first surface of the substrate. A metho...
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WO/2023/218363A1 |
The present invention relates to an additive for dispersing asphaltene particles and to a method for producing same that comprises the following steps: a) adding water, montmorillonite powder and an aqueous solution of hydrochloric acid ...
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WO/2023/192475A9 |
Method for the derivatization of a shale inhibitor comprising treating the amine-based shale inhibitor agents with at least one acid anhydride, and/or at least one organic acid, and/or at least one acyl chloride, thereby producing a deri...
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WO/2023/220175A1 |
[bis[2-[bis(phosphonomethyl)amino]ethyl]amino]methylphosphon
ic acid metal salt may be used as a scale inhibitor in wellbore applications. Said scale inhibitors and related methods may incorporate controlled release characteristics. For ...
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WO/2023/219760A1 |
A scale removal agent may effectively be introduced into a well having a formation temperature of 300°F. The scale removal agent is a component of a gelled fluid containing an amine oxide viscoelastic surfactant.
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WO/2023/215648A1 |
Invert emulsions can be used in oil and gas operations. A fluid loss control additive (FLCA) is a component of the fluid that can be utilized to control or minimize fluid loss into a subterranean formation. The FLCA can be a chemically m...
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WO/2023/213825A1 |
The present invention concerns the technical field of cementing, in particular in the construction of oil and/or gas wells or geothermal energy. More specifically, the subject of the present invention is a cementitious composition and an...
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WO/2023/206900A1 |
The present invention relates to the technical field of drilling fluids, and provides a dual-chamber microcapsule for a drilling fluid, a self-reversing reversible water-in-oil drilling fluid, and a preparation method therefor. The dual-...
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WO/2023/211589A1 |
Compounds for inhibiting corrosion are provided that include a pyridinium substituent and a hydroxy substituent. Also provided are methods of making the compounds. Also provided are corrosion inhibitor formulations including the compound...
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WO/2023/205067A1 |
Surfactant compositions comprising a reaction product of a saccharide polymer and a fatty acid or a fatty ester may be obtained in an aqueous fluid in the presence of a hydroxide base and a neutral surfactant or a reaction product form t...
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WO/2023/205672A1 |
A scale inhibitor fluid includes 0.001 ppm to 100 ppm of a phosphonate compound, 20 ppm to 400 ppm of a cation-containing surfactant, and an aqueous fluid. The cation-containing surfactant includes at least one of a single positively cha...
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WO/2023/205327A1 |
Cementing compositions contain water, a cement and an additive for adjusting thermal conductivity. The additive for adjusting thermal conductivity may be graphite, graphene, aluminum oxide, hematite, copper metal, copper oxide, aluminum,...
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WO/2023/201867A1 |
The present invention relates to the technical field of functional materials, and a nano self-locking bentonite film-forming agent, a preparation method therefor and a film-forming drilling fluid. The method comprises: (1) subjecting ben...
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WO/2023/205789A1 |
The present disclosure is broadly concerned with green crosslinkers for use with reservoir temperatures ranging from about 80°C to about 130°C. These green crosslinkers can crosslink acrylamide-based polymers with crosslinking times ra...
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WO/2023/199013A1 |
An aqueous formulation for use in slick water fracturing, water treatment, enhanced oil recovery, drilling, erosion control, dust abatement or mining flotation operations comprises: (i) one or more than one polymer (AA) which is a water-...
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WO/2023/201127A1 |
A treatment fluid can include a base fluid and a lost-circulation package. The lost- circulation package can include plurality of pieces of a first lost-circulation material and a second lost-circulation material. The plurality of pieces...
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WO/2023/200839A1 |
The present disclosure describes solid compositions comprising a paraffin inhibitor and a corrosion inhibitor. The paraffin inhibitors include polymers having various repeat units containing one or more ester moieties. The corrosion inhi...
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WO/2023/201321A1 |
Amine functionalized nanoparticles comprising a core-shell nanoparticle morphology comprising a trialkoxyorganosilane coated nanoparticle core and an amine functionalized group on the surface of the nanoparticle as a shell are disclosed,...
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WO/2023/198584A1 |
Method of improving the rate of penetration of the drilling bit when drilling a wellbore through unstable clayey soils and of reducing the soil disaggregation, the method comprising drilling the well in the presence of a water based dril...
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WO/2023/193313A1 |
Provided are an amino acid polymer, and a preparation method therefor and the use thereof as a natural gas hydrate kinetic inhibitor. The provided amino acid polymer structure contains an isopropyl side chain group. The isopropyl has rel...
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WO/2023/195984A1 |
Methods and compositions for using lubricants in subterranean formations, and specifically lubricants that comprise certain oils, surfactants and solvents, and methods for their use, are provided. In one embodiment, the methods include i...
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WO/2023/196956A1 |
A method of stimulating a hydrocarbon-bearing formation may include generating a foamed fracturing fluid with foam quality of at least 20% and introducing the foamed fracturing fluid into the formation under a pressure greater than the f...
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WO/2023/193314A1 |
The present invention belongs to the technical field of chemical production, and particularly relates to an amino acid polymer, and a preparation method therefor and the use thereof as a natural gas hydrate kinetic inhibitor. An S=O bond...
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WO/2023/195875A1 |
A well treatment composition may include a capsule and a treatment agent solution within the capsule. The treatment agent solution may have a treatment agent. The system may include a radiation source: neutron, gamma, X-ray, and/or ultra...
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