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Patent Searching and Data


Matches 1 - 50 out of 8,970

Document Document Title
WO/2019/011965A1
The present invention relates to a method for the production of crude oil from subterranean, oil-bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant ...  
WO/2019/012405A1
The invention relates to a formulation for the diluting and dispersing of oily residues for the recovery of crude oil in processes for producing petroleum, comprising surfactant elements, as well as the process for recovering crude oil u...  
WO/2019/014614A1
A system for introducing bulk dry material into a fluid system includes a vessel, wherein the vessel is closed; an outlet, wherein the outlet is located on a bottom of the vessel; a valve controlling the outlet; corner locking pins locat...  
WO/2019/014125A1
A process includes injecting a molybdate or molybdate salt into a hydrocarbon-bearing formation, wherein no biocide is injected into the formation. Molybdates and molybdate salts are added to a fluid to be injected into the hydrocarbon-p...  
WO/2019/014138A1
An automobile tire that is unsuitable to carry an automobile is obtained. Tire chips are formed from the obtained automobile tire. The tire chips are mixed with a quantity of wellbore carrier fluid to form a mixture. The mixture is used ...  
WO/2019/013799A1
A system for slowly releasing an oil-soluble well treatment agent into a well or a subterranean formation includes a composite of the oil-soluble well treatment agent associated with a second component. The amount of the oil-soluble well...  
WO/2019/014061A1
Compositions and methods are provided for use in controlling souring and corrosion causing prokaryotes, such as SRP, by treating oil and gas field environments or treatment fluids with a newly identified bacterial strain ATCC Accession N...  
WO/2019/011966A1
The present invention relates to a method for the production of crude oil from subterranean, oil- bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant...  
WO/2019/010641A1
The invention relates to the field of deep well drilling fluids. Disclosed are a high temperature crosslinking deep well drilling fluid and a preparation method thereof. The drilling fluid comprises water, bentonite, sulfonated-pheno-for...  
WO/2019/011045A1
Disclosed are a water-based viscosity reducer for emulsifying super heavy oils and a preparation method therefor, wherein the viscosity reducer comprises the following components: 0.7-4 parts of a surfactant, 0-10 parts of an oil phase, ...  
WO/2019/010771A1
A deep-well polysulfonate drilling liquid, comprising water, bentonite, sodium carbonate, a sulfomethyl phenolic resin, sulfonated lignite, a halide salt, a filtrate reducer, sodium polyacrylate, sodium bisulfite and barite. On the basis...  
WO/2019/010179A1
Disclosed herein are compositions and methods for increasing recovery, or flowback, of hydrocarbon compounds from hydrocarbon-containing subterranean reservoirs. The compositions include a dialkyl dimethyl ammonium surfactant, an amphote...  
WO/2019/007445A1
The invention relates to a method including a system of additives which increase fluidity and/or flow capacity and minimise pressure drops from the steps of lifting in production wells, collection lines, dehydration systems and ducts for...  
WO/2019/010207A1
The present disclosure relates to a micromesh proppant for use in hydraulic fracturing of oil and gas wells. In one embodiment, a process for forming proppant particles includes providing a slurry comprising a ceramic raw material contai...  
WO/2019/008329A1
A method of reducing the viscosity of a crude oil, the method comprising adding to the crude oil (i) a surfactant compound including at least two hydrophobic groups wherein the resultant mixture has a water content of less than 10 vol%.  
WO/2019/005780A1
A method for sealing perforation tunnels in a well includes steps of pumping an initial volume of fluid into the well, mixing expandable material into a carrier fluid to form an expandable fluid mixture, pumping the expandable fluid mixt...  
WO/2019/005095A1
Systems, methods, and compositions that provide an energized natural gas (ENG) fracturing fluid including a complexing agent. A fracturing fluid may include: methane; water; a complexing agent; a surfactant; and wherein the fracturing fl...  
WO/2019/005570A1
The durability of a self-suspending proppant which is made by applying a layer of a hydrogel-forming polymer in powder form to a binder carried on the surfaces of a proppant particle substrate is improved by applying a crosslinking agent...  
WO/2019/006004A1
A method of treating petroleum fluids includes adding a wax inhibitor composition to the petroleum fluids, the wax inhibitor composition, including a wax inhibitor; a non-ionic surfactant or a cationic surfactant; and a co-solvent blend....  
WO/2019/005289A1
Disclosed is a temperature stabilized aqueous wettability composition and method of use for the recovery of petroleum from subterranean formulations. Said aqueous wettability composition comprises a polyethylene oxide nonionic surfactant...  
WO/2018/234907A1
Disclosed is the use of a monocarboxylic acid composition additive to inhibit formation of naphthenic deposits from crude oil. The invention provides for the inhibition of napthenic deposits using environmentally acceptable compositions,...  
WO/2018/237237A1
The present application describes compositions and methods for the controlled delivery of acid to a desired location, for instance to a subterranean formation.  
WO/2018/232532A1
A method for drilling a tunnel through a formation must address environmental concerns. One tunneling method comprises the steps of: preparing a mixed metal-viscosified drilling fluid including bentonite, a mixed metal viscosifier and co...  
WO/2018/236820A1
Systems and methods for forming a permanent plug in a subterranean formation include providing a solution of colloidal silica and pumping the colloidal silica into a bore of a subterranean well so that the colloidal silica penetrates por...  
WO/2018/232076A1
The disclosure generally refers to compositions and methods for treating subterranean formations that improve the recovery of hydrocarbons from the subterranean formations. The compositions include positively and negatively charged nanop...  
WO/2018/231236A1
Methods for treating subterranean formations by diverting treatment fluids therein are provided. In one embodiment, the methods comprise: introducing a first diverter material comprising polyvinyl alcohol and a plasticizer into or adjace...  
WO/2018/231489A1
Systems and methods for treating a stream (12) from a chemical enhanced oil recovery (CEOR) process are disclosed. The method includes contacting the feed stream (12) with a plurality of media composite particles (20) to remove hydrocarb...  
WO/2018/231873A1
A system for fracturing a subterranean formation that includes a supply of a slurry including at least 5% by weight of particles; a pump coupled to the supply of the slurry; a conduit coupled to the pump and extending into the subterrane...  
WO/2018/226772A1
Matrix acidizing treatment are designed and performed in a manner that takes into account radial acid flow into the formation. Subterranean well characteristics are determined (e.g., mineralogical and petrophysical characteristics). One ...  
WO/2018/227036A1
Proppant dust suppression compositions including: (a) at least one sugar alcohol ester or a sugar alcohol esters or a plurality of sugar alcohol esters; or (b) a mixture of at least one glyceride or a glyceride or a plurality of glycerid...  
WO/2018/226737A1
A polymer and hydraulic fracturing fluid provide an improved ability to transport proppant. In an embodiment, a method of designing a hydraulic fracturing fluid includes calculating an elastic modulus of a polymer. The method also includ...  
WO/2018/226113A1
A method is proposed for temporarily isolating a well interval comprising: injecting a first suspension into the well, said first suspension containing a viscous carrier fluid, degradable particles and degradable fibres until a first ...  
WO/2018/224478A1
The instant invention relates to a method for the preparation of a scale inhibitor and to a method of inhibiting the formation of scale using a water soluble polymeric gelling agent, in particular synthetic polymer, which has been degrad...  
WO/2018/224599A1
The present invention relates to a process of a process for preparation of a polymer dispersion comprising a step (E) of free radical polymerization in an aqueous medium (M) in the presence of: at least a pre-polymer (pO) soluble in the ...  
WO/2018/218281A1
A process for inhibiting the formation of gas hydrates in a hydrocarbon fluid comprising adding to the hydrocarbon fluid, a gas hydrate anti-agglomerate which is a biodegradable anti-agglomerant derived from a naturally occurring substance.  
WO/2018/219654A1
The invention relates to a method for extracting petroleum from underground oil reservoirs, wherein an aqueous, salt-containing surfactant formulation comprising a surfactant mixture for lowering the interfacial tension between oil and w...  
WO/2018/222478A1
A date tree trunk- and rachis-based lost circulation material (LCM) is provided. The date tree trunk and rachis LCM includes superfine date tree trunk fibers produced from date tree trunks and superfine date tree rachis fibers produced f...  
WO/2018/218362A1
The present disclosure is directed to the use of dendrimers in various compositions and methods applicable in oilfield applications, such as, but not limited to, in compositions containing oilfield chemical additives for enhancing the ef...  
WO/2018/222958A3
Materials and methods for protecting electric cables and connectors from corrosive atmospheres and chemicals, particularly in oil wells, are provided herein.  
WO/2018/222648A1
The present application relates to coated silica particles, compositions containing the coated silica particles, and methods for using these compositions in subterranean formations. The coated silica particle includes a cationic species ...  
WO/2018/220408A1
The method includes a step of introducing into the reservoir, via a well, a mixture comprising a scale inhibitor, a first scale precursor and a second scale precursor. The first and second scale precursors can react together to form scal...  
WO/2018/223007A1
Compositions and methods are provided that are beneficial for use in downhole applications, especially oil and gas well bores. A composition includes an elastomer doped with a dopant. The presence of the dopant increases a rate of microb...  
WO/2018/222545A1
Rheology modifiers comprising cross-linked poly(amino acid) and methods of their use in aqueous compositions. The modifiers comprise cross-linked poly(amino acid) microparticles having a mean equivalent diameter when fully swollen in dei...  
WO/2018/222958A2
Materials and methods for protecting electric cables and connectors from corrosive atmospheres and chemicals, particularly in oil wells, are provided herein.  
WO/2018/222966A1
Methods and dispersing agents for dispersing a polymeric low dose hydrate inhibitor are disclosed. More specifically, the method comprises contacting an aqueous fluid containing a polymeric low dose hydrate inhibitor with a dispersing ag...  
WO/2018/222439A1
The implementations described herein generally relate to methods and chemical compositions for scavenging sulfur-containing compounds, and more particularly to methods and compositions for scavenging, for example, H2S and mercaptans from...  
WO/2018/218333A1
An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodi...  
WO/2018/217895A1
Dissolving iron sulfide on the carbon steel tubing to yield chelated iron is achieved by treating the carbon steel tubing with a composition including an iron chelant and an additive. The additive includes at least one of an oxidizing ag...  
WO/2018/217864A1
Stimuli-responsive materials and associated compositions and methods are provided. In some embodiments, the material comprises polymers (e.g., block copolymers) attached to a particle (e.g., nanoparticle), wherein the polymers comprise a...  
WO/2018/217013A2
The present invention relates to a composition for inhibiting gas hydrate generation and a preparation method therefor, the composition having a temperature-sensitive function and thus being easily recovered at a predetermined temperatur...  

Matches 1 - 50 out of 8,970