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Matches 1 - 50 out of 1,108

Document Document Title
WO/2021/071480A1
Multifunctional surfactants useful in, for example, in the oil and gas industry, are provided, in some embodiments, the.multifunctional surfactants include at least one amide group and at least one thiol group in the same molecule.ยท in ...  
WO/2020/236176A8
Dual cation hydrate inhibitor compositions and methods of using such compositions to, for example, inhibit the formation of gas hydrate agglomerates are provided. In some embodiments, such methods include introducing a hydrate inhibitor ...  
WO/2021/067371A1
A method of determining a risk of corrosion and scale formation of tubing (102) in a wellbore includes receiving, from a plurality of first sensors (104) positioned at a downhole location of a wellbore, first production stream informatio...  
WO/2021/062514A1
The present invention discloses a method and a composition for removing metal sulfide scale present on the surface of a metal. The liquid composition comprises an aqueous solution of a chelating agent and a counter ion component, an alde...  
WO/2021/061903A1
A grafted poly(a-olefin-maleic anhydride) copolymer for use as a wax inhibitor in crude oils having the following general chemical formulae of Structure (I), where R1 is a substituent having, for example, from 1 carbon atom to 10 carbon ...  
WO/2021/050121A1
Compositions and methods of using of such compositions to, for example, inhibit shale are provided. In one embodiment, the methods include introducing an additive including a cationic clay stabilizer and an anionic clay stabilizer into a...  
WO/2021/045745A1
A method may include: generating a signal in a conduit; measuring the signal; generating data representing a deposit in the conduit, the data being generated by a deposition identification model, wherein the deposition identification mod...  
WO/2021/030683A1
In a snubbing operation, a method is used for determining when a wellbore should be circulated by comparing calculated torque and drag values from a clean wellbore against actual torque and drag values. In a more expansive application, f...  
WO/2021/011570A1
A system and method for targeted delivery of treatment material to a specified depth in a wellbore, including placing a container to the specified depth and allowing the container to fail at the depth due to wellbore pressure to release ...  
WO/2021/007441A1
Macroparticulates may be formed through at least partial self-assembly by reacting an epoxide-containing (meth)acrylic polymer or copolymer with a compound bearing a nitrogen nucleophile. An internal cavity may be formed when functionali...  
WO/2021/003552A1
The present invention discloses a novel aqueous composition for use in removing mixed sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group ...  
WO/2021/003476A1
A method and system for removing wax deposits from a wellbore and other oil production and processing equipment using a wax removal surfactant having at least 1% alkyl poly glycoside (APG), at least 0.5% ethoxy lated alcohol (AE) or alco...  
WO/2021/002856A1
A system to clean well casing in a downhole well operation. The system comprises an inner collar having flow ports and an out collar having jet ports in fluid communication with the flow ports. The inner collar couples with a section of ...  
WO/2020/264071A1
The subject invention provides multi-functional biochemical compositions, as well as their use in enhancing oil recovery by, for example, enhancing traditional acid treatments. Advantageously, the compositions and methods of the subject ...  
WO/2020/264073A1
The subject invention provides compositions comprising concentrated acids, solvents and surfactants, as well as their use in improving oil and/or gas production. In some embodiments, the compositions comprise biological components, such ...  
WO/2020/263103A1
The invention relates to a wireline clean-out tool (1) for collecting debris (99) in a wellbore (100). The wireline clean-out tool (1) comprises: i) a first opening (3) and a second open-ing (5) being provided at or near a free-end porti...  
WO/2020/256560A1
A method and corresponding gas processing system for cleaning deposited solid material from a fouled portion of a gas compressor (6) whilst the gas compressor (6) is in situ in a natural gas processing system (1) are provided. Cleaning o...  
WO/2020/252597A1
Systems and methodologies are provided for simultaneously milling obstructions from within a subterranean wellbore while pumping the milled obstructions and debris from the wellbore to the surface. The present systems and methodologies a...  
WO/2020/256563A1
The invention is a casing retrieval drill pipe string (0) conveyed toolstring assembly (1) for a well comprising one or more casings (130, 120, 118), said toolstring assembly comprising: - a casing spear tool (30) arranged for engaging a...  
WO/2020/257747A1
The present disclosure relates to compositions and methods for prevent the formation of and disperse aggregates and other poorly soluble materials in hydrocarbon fluids. The compositions include an asphaltene dispersant prepared from the...  
WO/2020/236176A1
Dual cation hydrate inhibitor compositions and methods of using such compositions to, for example, inhibit the formation of gas hydrate agglomerates are provided. In some embodiments, such methods include introducing a hydrate inhibitor ...  
WO/2020/236137A1
Methods and compositions for use in the inhibition of the formation of gas hydrate agglomerates are provided. In some embodiments, a method is provided that includes: providing an emulsion drilling fluid including: a continuous phase inc...  
WO/2020/232088A1
Methods for prediction and inhibition of calcium carbonate scale in hydrocarbon wells include generating a confusion matrix for each of several machine learning methods. The confusion matrix is generated by executing a machine learning m...  
WO/2020/232089A1
Methods for prediction and inhibition of calcium carbonate scale in hydrocarbon wells using machine learning include extracting training data including parameters from aqueous samples. Each aqueous sample is collected from a respective h...  
WO/2020/232036A1
A pumping system is configured to be deployed in a well that has a vertical portion and a lateral portion. The pumping system includes a pump positioned in the vertical portion, a velocity tube assembly that extends from the vertical por...  
WO/2020/231438A1
A subsea pump includes a liquid-gas inlet port for receiving liquid and gas into a first chamber, a plunger in a second chamber, a suction valve communicating the first chamber with a second chamber, a gas discharge conduit, a gas discha...  
WO/2020/232327A1
A method of breaking a filtercake in a wellbore may include circulating a breaker fluid into the wellbore having a filtercake on the walls thereon, the filter cake including copolymer formed from at least one acrylamide monomer and at le...  
WO/2020/219034A1
Provided is a casing washout perforating gun assembly for use in a wellbore. The casing washout perforating gun assembly, in one example, includes a carrier gun body, an uphole plurality of charges supported within the carrier gun body, ...  
WO/2020/214180A1
Systems and methods for treating a subterranean formation with particulate additives that may be useful in removing filtercake and/or mitigating premature fluid loss from the subterranean formation are provided. In some embodiments, the ...  
WO/2020/212686A1
A well cleaning tool (100) comprising: an elongate body (102) having a longitudinal axis; a central fluid bore (120) aligned with the longitudinal axis; and a cleaning element (110) mounted on the elongate body (102) and being displaceab...  
WO/2020/208327A1
An apparatus (2) for cleaning the area around a casing of a wellbore is described. The apparatus (2) comprises a body (4) configured to be located in a wellbore casing (8), the body defining an.internal chamber (6) for receipt of pressur...  
WO/2020/201537A1
The present invention relates to a cleaning device (1) for cleaning an auger (30), preferably an auger of a kelly drilling apparatus, the cleaning device comprising a retainer and an auger cleaner (14), which is to be fastened or is fast...  
WO/2020/198835A1
The present invention discloses a novel aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component ...  
WO/2020/193710A1
A method for well abandonment in a cased well bore by perforating, washing and cementing to provide a plug over a longitudinal section of the well, wherein logging of the washed outer annulus is performed to evaluate the effectiveness of...  
WO/2020/170044A1
A clean-out tool and method of cleaning out a wellbore. The clean-out tool is placed at the end of a coiled tubing or other conveyance string. The clean-out tool comprises a tubular housing providing an elongated bore through which fluid...  
WO/2020/170010A1
The present invention relates to an apparatus (20) for clearing a plugged control line (12), in particular for clearing a plugged surface controlled sub-surface safety valve (11) control line (12), the apparatus (20) comprising a connect...  
WO/2020/165635A1
Methods and systems for recovering hydrocarbon gas from a subterranean reservoir comprising a wellbore, the methods and systems comprising introducing solid carbon dioxide into the wellbore are described within.  
WO/2020/165634A1
Methods and systems for recovering hydrocarbon gas from a subterranean reservoir comprising a wellbore, where hydrocarbon gas flow from the subterranean reservoir is impeded due to collection of liquids, including water, in the wellbore,...  
WO/2020/139918A1
Systems and methods for measuring properties within a subterranean well include a measuring tool having a tool body with a central axis and a tool attachment located at an axial end of the tool body. A delivery line attachment is operabl...  
WO/2020/122936A1
Provided is a wellbore scraper assembly for use with a wireline. The wellbore scraper assembly, in one example, includes a tubular housing, a plurality of hydraulically deployable scraper features associated with the tubular housing, the...  
WO/2020/117793A1
A system for remediating a blockage(120) in a subsea component (110) including a riser (60) extending from a surface vessel (12), a flexible jumper (70) having an upper end coupled to the riser and a lower end coupled to a subsea compone...  
WO/2020/117210A1
A tubular jetting device includes at least one inlet port that includes a first inlet opening in an inner surface of the tubular jetting device where the inner surface defines a center bore. The at least one inlet port also includes a se...  
WO/2020/101744A1
A low dosage hydrate inhibitor blend and a method of treating a well fluid are provided. The low dosage inhibitor blend, which is used in the method, comprises a first cationic surfactant and a second cationic surfactant. For example, th...  
WO/2020/101505A1
Circulation unit (2) for connecting to a lubricator (160), said lubricator (160) is suitable for housing a wireline operated tool string (200) for collecting debris within a petroleum well, said circulation unit (2) comprises a house (29...  
WO/2020/091883A1
A bottom hole assembly for use in a wellbore includes a whipstock; a downhole tool coupled to the whipstock; and a cleaning tool coupled to the downhole tool for cleaning a portion of a wall of the wellbore, wherein the downhole tool is ...  
WO/2020/091758A1
Embodiments of a debris catcher and a debris catching system are disclosed herein. In one embodiment, a debris catching system comprises a plug and a debris catcher, the debris catcher including at least a debris catching sleeve, a runni...  
WO/2020/085915A1
An in-situ surface controlled sub-surface safety valves control line rectification device (1) and method, comprising; a rectification line feeder (10), a longitudinal first rectification line (20), wherein the rectification line feeder (...  
WO/2020/081236A1
A perf and wash system (300) for plugging a casing and wellbore, the perf and wash system including a cleaning tool (310) having at least one nozzle (312) making a first angle with a longitudinal axis of the system; a perforating gun ass...  
WO/2020/061671A1
The present disclosure provides a storage and freeze thaw stable liquid treatment composition comprising a solvent package and a chemical treatment agent. The liquid treatment composition may be used in various applications, such as in t...  
WO/2020/068103A1
An apparatus, system, and method according to which debris is cleaned from a casing that extends within a wellbore. The method generally includes running a downhole tool into the casing, the downhole tool comprising an isolation tool, a ...  

Matches 1 - 50 out of 1,108