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WO/2023/049360A1 |
Treatment of hydrocarbon formations using single-phase aqueous acid blends that contain arginine is described herein. The single-phase aqueous fluid includes one or more strong acid molecules and arginine in water, wherein the one or mor...
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WO/2023/041062A1 |
Pseudomonas and a use thereof. The preservation number of the pseudomonas is CGMCC No. 22583. The growth temperature of the pseudomonas is 37-45°C; under a medium-high temperature oil reservoir condition, the pseudomonas can be denature...
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WO/2023/043429A1 |
The present disclosure provides elastomer blends comprising mixtures of partially fluorinated elastomers, such as tetrafluoroethylene propylene elastomers (FEPM or TFEP) and fluorocarbon rubbers, such as vinylidene fluoride-based elastom...
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WO/2023/041539A1 |
The present application relates to an injection fluid F for hydraulic fracturing comprising at least one synthetic water-soluble polymer P with a weight-average molecular weight greater than or equal to 1 million daltons, said fluid bein...
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WO/2023/043655A1 |
Disclosed herein are extraction methods and systems to remove contaminants in subterranean formation, including a method of contaminant removal comprising: introducing one or more organic acids and one or more organic acid surfactant boo...
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WO/2023/044013A1 |
An aqueous based drilling fluid that exhibits improved lubricity, containing a sodium alkylglucosides hydroxypropyl phosphates lubricant component.
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WO/2023/038113A1 |
Provided is a cement composition containing cement and an agent for preventing dehydration, wherein the agent for preventing dehydration contains a vinyl alcohol polymer and a crosslinking agent and the expansion ratio of the agent for p...
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WO/2023/029459A1 |
Disclosed in the present invention is a silicon-containing thickening agent for a supercritical CO2 dry fracturing fluid. The thickening agent is composed of 18-27 g of methylcyclosiloxane, 9-13 g of vinyltriethoxysilane, 30-35 g of viny...
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WO/2023/030939A1 |
Hydrophobically modified, hyperbranched polyesters obtainable by a 2-step process of reacting a mixture comprising at least a polyol comprising at least 3 hydroxy groups and a monomer comprising one carboxylic acid group and at least two...
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WO/2023/031947A1 |
A non-cementitious loss control composition and a method for preparing a non-cementitious loss control composition is provided. The method comprises adding bentonite to water to form a gel slurry and adding a cross linking agent to the g...
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WO/2023/029796A1 |
Disclosed are a polymer, a tackifier, a preparation method therefor and a drilling fluid. The polymer contains a structural unit represented by formula (1), a structural unit represented by formula (2) and a structural unit represented b...
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WO/2023/027726A1 |
Systems and methods to determine concentrations of certain polymer encapsulators in drilling fluids based on light scattering, turbidity analysis and other analysis techniques. The method generally includes disposing a sample of drilling...
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WO/2023/025636A1 |
Aqueous dispersion of paraffine inhibitors, comprising a continuous aqueous phase comprising water and a water-miscible organic solvent, a dispersed phase comprising at least one paraffin inhibitor component, and at least one anionic sur...
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WO/2023/025058A1 |
Provided in the present invention are a hydrocarbyl tetralin polyethersulfonate, a preparation method therefor and the use thereof. The hydrocarbyl tetralin polyethersulfonate is represented by formula (I-0). The hydrocarbyl tetralin pol...
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WO/2023/028376A1 |
Disclosed are surfactants, as well as methods of using thereof in oil and gas operations.
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WO/2023/028040A1 |
Disclosed are succinic anhydride-derived polyester compounds used in compositions and methods for inhibiting corrosion.
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WO/2023/028378A1 |
Disclosed are compounds as well as methods of using thereof in oil and gas operations. The compounds described herein can be used in Enhanced Oil Recovery (EOR) formulations to provide aqueous stability and ultra-low interfacial tension ...
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WO/2023/020186A1 |
Provided in the present invention are a geopolymer material, and a preparation method therefor and the use thereof. The geopolymer material contains modified siallite. On the basis of the total amount of the modified siallite and in term...
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WO/2023/022789A1 |
Methods and treatment fluids for removing mixed scale. A treatment fluid is introduced into a wellbore comprising a mixed scale of interspersed calcium carbonate and calcium sulfate. The treatment fluid comprises: phosphonomethyliminodia...
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WO/2023/022726A1 |
Methods for inhibiting scale formation in a subterranean formation are provided. In some embodiments the present disclosure includes providing an organophosphorous compound including a phosphonoalkyl moiety; providing an acid component; ...
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WO/2023/023506A1 |
A synergistic anti-scaling composition, the composition having a scale inhibitor; and a compatibility aid. A synergistic anti-scaling composition, the composition having a scale inhibitor combination, the combination providing (i) a poly...
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WO/2023/022959A1 |
A hydraulic fracturing composition, a system incorporating the composition, and methods for using said system. The composition comprises a transport fluid; and a conductive proppant dispersed in the transport fluid, wherein an electrical...
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WO/2023/016099A1 |
A test device for increasing production of coalbed methane by reducing nanobubbles on a coal surface. The test device comprises: a box body (1) internally provided with a fermentation chamber for accommodating coal and bacterial liquid, ...
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WO/2023/016329A1 |
The present application discloses a liquid lightening agent, a preparation thereof, and an application thereof. The liquid lightening agent comprises water, hollow microspheres, and a high molecular polymer, the weight ratio of the water...
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WO/2023/018659A1 |
Citrate polyester additives for crude oils, mixtures of the citrate polyester additives and crude oils, and methods for producing or forming the mixtures are provided. The mixtures and methods comprise at least one citrate polyester addi...
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WO/2023/017057A1 |
The present invention relates to a composition and its use as lubricating additive, in particular to its ability to improve the lubricating property of water-based muds.
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WO/2023/015730A1 |
The present invention provides a polymeric microsphere with a surfactant wrapped therein, comprising a polymeric microsphere and coconut diethanol amide wrapped therein. The present invention further provides a preparation method therefo...
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WO/2023/018868A1 |
A polyacrylamide friction reducer wherein the friction reducer contains surfactant functional groups, and wherein the polyacrylamide friction reducer is degradable, can be used for multi-functional, slickwater fracturing fluid projects. ...
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WO/2023/014921A1 |
A method of repairing a well is provided. The method includes injecting a brine solution into the well, injecting carbon dioxide into the well, and reacting the brine solution in the reservoir rock with the carbon dioxide to form calcite...
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WO/2023/014941A1 |
Compounds, compositions and methods are provided for reducing, inhibiting, or preventing corrosion of a surface, using a polyester polyamine compound. The polyester polyamine compound having a structure corresponding to Formula 1 or 2, o...
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WO/2023/014851A1 |
Compositions comprising a nonionic surfactant and 0.1 to 30 wt.% of a low-mole alkoxylate are disclosed. Some low-mole alkoxylates have the formula R-O-(AO)pH wherein R is a linear or branched C8-C16 alkyl or alkanolamide group, AO is ox...
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WO/2023/014955A1 |
Compositions and methods are provided for reducing, inhibiting, or preventing corrosion of a surface, the polyamine compounds corresponding to the structure of Formula 1 or 2, or a salt thereof, wherein X1 is –C(O)R9 or –[C(R10R11)]p...
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WO/2023/014484A1 |
Coated proppants include a proppant particle, a surface copolymer layer surrounding the proppant particle, and a resin layer surrounding the surface copolymer layer. The surface copolymer layer includes a copolymer of at least two monome...
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WO/2023/009149A1 |
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 ba...
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WO/2023/009147A1 |
A method of producing a cement composition with reduced carbon emissions may include: defining cement constraints comprising at least one cement property; calculating a set of cement compositions which satisfy the cement constraints, usi...
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WO/2023/009115A1 |
A method of servicing a wellbore penetrating at least a portion of a subterranean formation, including placing into the wellbore a wellbore servicing fluid including a friction reducer, an iron control agent, and an aqueous fluid. The ir...
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WO/2023/005769A1 |
The present invention relates to the technical field of oilfield chemistry. Disclosed are a polymer, a thickening agent, and a preparation method therefor. The polymer comprises a structural unit as shown in formula (1), a structural uni...
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WO/2023/009994A1 |
A corrosion inhibitor for a surface comprising copper or alloys thereof. The corrosion inhibitor may comprise a biochelant, a primary corrosion inhibitor, and a solvent.
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WO/2023/009352A1 |
A method includes disposing a device into a borehole in proximity to a subterranean formation where a filter cake has been formed adjacent thereto, the device comprising a support structure and a shape-memory article disposed at the supp...
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WO/2023/003572A1 |
A method of servicing a wellbore penetrating a subterranean formation, comprising placing into the wellbore a cementitious composition comprising a crosslinked polymeric microgel, a clay, a cementitious material, and water. By incorporat...
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WO/2023/003630A1 |
A brine-based viscosified pill including (1) a viscosified brine, (2) a surfactant-solvent blend containing about 5 wt.% to about 40 wt.% of at least one nonionic surfactant; about 5 wt.% to about 20 wt.% of at least one polyglycerol est...
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WO/2023/003943A1 |
Controlled release particles may include stimuli-responsive coatings on porous particles to allow for controlled release of a material in the pores of the porous particles. For example, a composition may comprise: a porous particle; a ma...
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WO/2023/287746A1 |
Treatment of hydrocarbon formations using acid blends that contain water soluble polymers having chemical affinity for acid-susceptible rock species in the hydrocarbon formation is described herein. The polymers retard the activity of ac...
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WO/2023/288093A1 |
Disclosed herein are compositions comprising a backbone having poly(maleic acid-co-sodium allyl sulfonate), and an additional monomer comprising an anionic monomer, a non-ionic monomer, or a cationic monomer. Further, the unsaturated car...
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WO/2023/287443A1 |
Cement compositions and methods for using the same in subterranean formations are provided. In one embodiment, the methods include introducing a treatment fluid including an aqueous base fluid, at least one viscoelastic surfactant, a div...
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WO/2023/287442A1 |
Compositions of lost circulation materials and methods for using the same in subterranean formations are provided. In one embodiment, the methods include introducing a treatment fluid into a wellbore penetrating at least a portion of a s...
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WO/2023/283727A1 |
The present disclosure generally relates to compositions containing percitric acid, treatment fluids containing such compositions and methods of using the treatment fluids during various oil-and gas-field operations including hydraulic f...
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WO/2023/284178A1 |
A surfactant composition for oil displacement in high-temperature and high-minerality oil reservoirs, comprising a primary agent, a synergist and a cosolvent. It has good interfacial activity, can further reduce oil-water interfacial ten...
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WO/2023/283480A1 |
Treatment of subterranean formations using acid blends that contain alcohols and surfactants is described herein. The alcohols and surfactants are used together to retard the activity of acid on acid-susceptible species of rock formations.
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WO/2023/281233A1 |
The present invention relates to a water-soluble polymer having a weight-average molecular weight greater than 10 million daltons. This polymer is obtained from 2-acrylamido-2-methylpropane sulphonic acid and/or one of its salts at least...
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