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WO/2022/066605A1 |
A system and method for generating water concentrated in calcium bromide from produced water, to provide for drilling fluid having the calcium bromide. The technique includes flowing the produced water through a bed of ion-exchange resin...
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WO/2022/066969A1 |
A method of removing from a surface a solid sulfur-containing impurity composition comprising a sulfur-containing compound, the method comprising the step of dissolving sulfur-containing compound in the sulfur-containing impurity composi...
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WO/2022/060657A1 |
Methods of preparing a crosslinked hydraulic fracturing fluid include combining a hydraulic fracturing fluid comprising a polyacrylamide polymer with a plurality of coated proppants. The plurality of coated proppants include a proppant p...
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WO/2022/060850A1 |
Methods for treating a hydrocarbon-containing formation may include preheating a gelant that contains a crosslinkable polymer, one or more crosslinking agents, and an aqueous fluid; and injecting the gelant into the formation, wherein th...
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WO/2022/060359A1 |
A cement composition can include: water; cement, wherein less than 75 w/w% of the total amount of the cement is Portland cement; and a fluid loss additive, wherein the fluid loss additive comprises a polymer network having at least one b...
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WO/2022/060366A1 |
A treatment fluid can include: a base fluid, wherein the base fluid comprises water; and a lost-circulation material, wherein the lost-circulation material comprises a polymer network having at least one branching point formed with a mon...
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WO/2022/055526A1 |
A method includes introducing an epoxy resin system to a wellbore defect in a wellbore. The epoxy resin system comprises a polyhedral oligomeric silsesquioxane (POSS) epoxy resin with at least one reactive group and a curing agent. The m...
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WO/2022/055555A1 |
Described herein are compositions useful for controlling fluid flow, for example in a target zone of a subterranean environment, and methods of forming and using the same. The composition generally comprises a quantity of fibers and a qu...
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WO/2022/055398A1 |
The invention relates to the oil-producing industry. A method for extracting oil from an underground reservoir comprises injecting into the reservoir an aqueous composition comprising a non-ionic surfactant and an additional surfactant s...
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WO/2022/056130A1 |
Copolymer compositions and methods of making copolymer compositions with enhanced stability in high temperature and high salinity environments. The copolymers include hydrophobic monomers and sulfonated monomers. The sulfonated monomers ...
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WO/2022/053752A1 |
The present invention relates to a polymer obtained at least from a quantity A of 2-acrylamido-2-methylpropane sulfonic acid, in acid and/or salified form, characterised in that the quantity A of 2-acrylamido-2-methylpropane sulfonic aci...
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WO/2022/055392A1 |
The invention relates to the chemical industry, and more particularly to the development of a thermoplastic gas generating composition which is recyclable by molding and can be used for activating various mechanisms that utilize energy f...
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WO/2022/051465A1 |
A wellbore fluid may include a base fluid and at least one cationic heterocyclic polymer in an amount effective to increase a viscosity of the base fluid, the cationic heterocyclic polymer includes at least two distinct cyclic monomers, ...
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WO/2022/016001A9 |
The invention is directed to methods for improving the recovery of oil from subterranean geological formations, such as unconventional reservoirs. The invention is also directed to methods for evaluating the efficiency of inject-soak-pro...
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WO/2022/049370A1 |
A method of preparing a fracturing fluid (YY) is described. The method may comprise: (i) selecting an anionic surfactant (AS), for example an anionic sulphonate surfactant; (ii) contacting the anionic surfactant (AS) with a fracturing fl...
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WO/2022/047904A1 |
Disclosed in the present application are a nano active agent system, and a preparation method therefor and an application thereof. The nano active agent system comprises a cationic surfactant, a non-ionic surfactant, an amphoteric surfac...
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WO/2022/051142A1 |
Non-aqueous drilling fluids may be removed from a wellbore or tubing nor casing within the wellbore by introducing into the well a biodegradable aqueous fluid comprising banana.
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WO/2022/048008A1 |
Disclosed is an organic-inorganic hybrid nanomaterial. The organic-inorganic hybrid nanomaterial consists of structural units represented by formula i, formula ii and formula iii. Also disclosed is a preparation method for an organic-ino...
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WO/2022/046746A1 |
A method of making an invert oil-based mud (OBM), a composition for an invert OBM, and a method of using an invert OBM are provided. The invert OBM includes an oil-based fluid, an emulsifier comprising a calcium salt of an alkyl esterifi...
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WO/2022/047029A1 |
The embodiments described herein generally relate proppant materials. In one embodiment, a material is provided a substrate and an adhesive composition disposed on the substrate, wherein the adhesive composition comprises an adhesive age...
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WO/2022/047399A1 |
Methods and systems for reducing friction in fracturing fluids are disclosed. An exemplary friction reducing composition includes a synthetic water-soluble polymer and a nanocellulose. This friction reducing composition is added to aqueo...
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WO/2022/043055A1 |
The present invention relates to a method for limiting and/or preventing the migration of fines in a geological formation, in particular a subterranean formation, said method comprising bringing the formation into contact with one or mor...
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WO/2022/046545A1 |
Hybrid fracturing fluids for treating subterranean formations are provided. An exemplary hybrid fracturing fluid includes a mixture of an aqueous copolymer composition including a crosslinkable polymer (CLP), the CLP including crosslinki...
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WO/2022/042662A1 |
The present invention relates to the field of petroleum industry phase oilfield chemistry, and specifically relates to a bionic and dual-phobic drilling fluid. The drilling fluid contains a bionic wall-fixing agent, a bionic lubricant, a...
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WO/2022/046560A1 |
A method of surface logging a well includes adding each of multiple polymeric taggants to a circulating drilling fluid in an addition sequence while drilling the well. Each polymeric taggant includes a polymer and a respective fluorescen...
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WO/2022/046132A1 |
An oil recovery method may include injecting 0.05 to 0.25 pore volumes of low-salinity water having 4,000-8,000 ppm of total dissolved solids into a reservoir, and then applying seismic stimulation to the reservoir for a predetermined du...
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WO/2022/046163A1 |
In accordance with one or more embodiments of the present disclosure, a method of inhibiting shale formation during water-based drilling of subterranean formations includes introducing a shale inhibitor to the subterranean formation duri...
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WO/2022/039774A1 |
A method of reducing corrosion in tubular strings installed in wellbores includes dispensing an accelerated cement composition into a wellbore annulus, a casing-casing annulus, or both, the accelerated cement composition comprising a cem...
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WO/2022/040153A1 |
Electro-responsive hydrogel particles are flowed into a first wellbore formed in a subterranean formation. An electric circuit is established between the first wellbore and a second wellbore formed in the subterranean formation. An elect...
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WO/2022/039767A1 |
A method for selecting a surfactant solution for use in an enhanced oil recovery process may include contacting a surfactant solution with crude oil to produce a crude/surfactant mixture, compressing the interface between the crude oil a...
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WO/2022/040397A1 |
This disclosure relates to a foamable resin composition containing a nitrogen gas-generating compound and methods of using the composition for loss circulation control.
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WO/2022/035463A1 |
According to one or more embodiments of the present disclosure, a drilling fluid may comprise one or more deep eutectic solvents in an amount greater than or equal to 70 wt.% based on the total weight of the drilling fluid. Each deep eut...
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WO/2022/035447A1 |
Modified Drilling fluid compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives...
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WO/2022/035928A1 |
A method of producing a nanosilica-containing cement formulation, the method comprising the steps of mixing an amount of a determinant nanosilica particle and a functional coating; applying a dynamic initiator to trigger a reversible rea...
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WO/2022/036360A1 |
Embodiments of the disclosure provide compositions and methods suitable for injection of a nanosurfactant composition into a hydrocarbon-bearing formation for enhanced recovery operations. The nanosurfactant composition includes nanoasse...
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WO/2022/036359A1 |
Disclosed here compositions and methods suitable for injection of a nanosurfactant composition into a hydrocarbon-bearing formation for enhanced recovery operations. The nanosurfactant composition includes nanoassemblies that contain a p...
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WO/2022/033588A1 |
The present invention provides a polymer having a dispersing function, a preparation method therefor, and a use thereof as a cement dispersant. The polymer comprises a structural unit a, a structural unit b, a structural unit c and a str...
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WO/2022/034906A1 |
The present invention provides a vinyl alcohol polymer that has comparable properties to a vinyl alcohol polymer derived from petroleum alone. Thus, the present invention contributes to conservation of oil resources and suppression of ca...
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WO/2022/035470A1 |
A corrosion inhibiting cement composition for reducing corrosion of wellbore casings is disclosed that includes from 10 weight percent to 70 weight percent cement precursor, from 5 weight percent to 70 weight percent water, from 0.1% to ...
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WO/2022/036361A1 |
Embodiments of the disclosure provide compositions and methods suitable for injection of a nanosurfactant-based foam composition into a hydrocarbon-bearing formation for enhanced recovery operations. The nanosurfactant-based foam composi...
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WO/2022/035445A1 |
Provided is an injection fluid that may include a nanoemulsion having an oil phase dispersed in an aqueous phase, and non-superparamagnetic magnetic nanoparticles that are present in the dispersed oil phase. Further provided is a method ...
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WO/2022/036362A1 |
Embodiments of the disclosure provide compositions and methods suitable for injection of a nanosurfactant-based foam composition into a hydrocarbon-bearing formation for hydraulic fracturing operations. The nanosurfactant-based foam comp...
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WO/2022/036216A1 |
Provided are methods of recovering oil from a reservoir using carbon dioxide foam flooding in which a carbon dioxide foam of increased strength is used.
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WO/2022/036093A1 |
Loss circulation material (LCM) and method for treating loss circulation in a wellbore in a subterranean formation, including placing the LCM having a solid body with permeable portions or pores into the wellbore to dispose the LCM at th...
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WO/2022/032128A1 |
Disclosed is a hydrophobically-modified associative thickener polymer prepared from a reaction mixture comprising a) a polytetrahydrofuran having a formula (I): b) at least one active hydrogen-containing compound; c) a gem-polyhalide wit...
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WO/2022/029692A1 |
The present application relates to compositions and methods for controlled delivery of acid to a desired location, for instance to a subterranean formation.
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WO/2022/032122A1 |
Disclosed is a hydrophobically-modified associative thickener polymer prepared from a reaction mixture comprising a) a poloxamer tri-block copolymer of the formula (I): b) at least one active hydrogen-containing compound c) a gem-polyhal...
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WO/2022/031388A1 |
A stabilized water-dispersible latex additive useful in both freshwater-based and brine-based drilling fluids, may be formed by mixing an effective amount of a compound containing at least one pyrrolidone ring, such as, polyvinylpyrroli-...
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WO/2022/031913A1 |
A method and reactive treatment fluid for treating a wellbore for filter cake removal, including providing the reactive treatment fluid having a viscoelastic surfactant (VES) into a wellbore in a subterranean formation and attacking the ...
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WO/2022/029690A1 |
Provided herein are methods and compositions for delayed in-situ generation of acids.
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