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Matches 1 - 50 out of 1,072

Document Document Title
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 ...  
WO/2020/058687A1
The present invention relates to a magnetic cleaning tool (100) for removing ferrous debris from within a BOP, riser or wellbore, the tool comprising: a tool body having a longitudinal axis, and one or more magnets (104) configured to ro...  
WO/2020/058039A1
The present invention provides a well tool (1) for removing metal debris from a well bore, comprising a magnet element (2), an anti -torque anchor (5), a debris removal unit (3), a debris container (6) and a first connecting end (16) for...  
WO/2020/058704A1
A process control system for use in an oil and/or gas production and/or transportation system, comprises a controller configured to receive an input signal comprising measurement data relating to a production fluid flow in an oil and/or ...  
WO/2020/061548A1
An organic blend chemical additive comprising more than 50 wt.% organic solvent (e.g. methanol and/or ethylene glycol), less than 10 wt.% water, a nitrate salt, a maleic acid copolymer, and optionally an imidazoline may be delivered to a...  
WO/2020/055530A1
Certain sugars, when exposed to high temperatures, undergo oxidation to produce acidic species. Certain sugar alcohols are also acid precursors. The acidification process is a function of temperature, salinity, pH, and/or the presĀ¬ ence...  
WO/2020/049102A1
A downhole wellbore treatment system for and a method of treating an inner surface (FT) of a wellbore (W) is provided. The system comprises an elongate conduit (50) such as a flexible hose (50) for conveying treatment fluid from the surf...  
WO/2020/046172A1
The invention relates to devices designed for borehole reaming during casing, more particularly to casing reamer shoes mounted in the conductor guide hole of a string or liner. The casing reamer shoe proposed includes a sub connected by ...  
WO/2020/047386A1
The present embodiments generally relate to methods and compositions for the treatment of halite, such as controlling, preventing, and/or inhibiting halite formation and/or the rate of halite formation, in a fluid in need of treatment, s...  
WO/2020/041258A1
The subject invention provides a three-part method for increasing the amount of oil recovered from an oil well, the method comprising (1) paraffin removal; (2) gas release; and (3) plugging. The combination of parts provides for enhanced...  
WO/2020/039208A1
A cleaning head for a cleaning system for use in cleaning a fluid conduit for transporting hydrocarbons and/or a fluid conduit in a hydrocarbon wellbore, comprises a body defining an outer surface having a cross-section which is configur...  
WO/2020/041238A1
A diffuser assembly is provided which includes an upper mounting member mountable within a conduit and having an fluid inlet port, and a lower section having a diffuser screen. A plurality of radially oriented cutters are removably attac...  
WO/2020/037080A1
A pipe cleaning tool for cleaning pipe surfaces is configured for operative engagement with a drill motor. The cleaning tool includes a body having a sidewall extending between a first end and a second end of the body. Cleaning blades lo...  
WO/2020/028748A1
The invention relates to a method of conducting a perf wash cement ("P/W/C") abandonment job in an offshore oil or gas well annulus (2), in particular the washing or cementing operation using a rotating head (6, 8) with nozzles (7, 9) di...  
WO/2020/023286A1
A downhole fluid injection system comprising: a first fluid line including a first end, a second end, and an intermediate portion, the first end being connected to a fluid source, the first fluid line being extendable along a first porti...  
WO/2020/010422A1
The present invention relates to devices for assessing centrifugal force in the formation of scale. In this context, the present invention provides a centrifugal pipe-block apparatus comprising a rotational capillary tube (1) in the form...  
WO/2020/005615A1
This disclosure provides a method for scavenging hydrogen sulfide (H2S) from a fluid containing H2S and metal ions by introducing into the fluid at least one metal chelant in an amount effective to chelate metal ions in the fluid to form...  
WO/2019/246243A1
Provided herein are compositions and methods for treatment of microbially contaminated water and microbially contaminated surfaces. The compositions can include a micellar system comprising an equilibrium peroxycarboxylic acid and a surf...  
WO/2019/240980A1
Compositions may include an asphaltene dispersant that is the product of a reaction between a polysaccharide having at least two sugar subunits and one or more fatty acid reagents, and a petroleum fluid produced from a subterranean forma...  
WO/2019/226857A1
A tool for cleaning out the lower end of a cased wellbore having an installed production string. The tool is lowered down the production string until it reaches a stationary position. In that position, a lower section of the tool project...  
WO/2019/222241A1
Coiled tubing may be placed inside a subsea flowline, such as with a subsea insertion tool, to remediate blockages in the flowline subsea. In embodiments, the subsea insertion tool is used to unspool a length of coiled tubing string from...  
WO/2019/209367A1
A method for injecting a controlled volume of liquid into a system having at least one liquid injection point includes inputting into a controller pressure measurements made at at least one position from a liquid storage device and the a...  
WO/2019/206975A1
An injection fluid is pressurised for injection into a subsea installation or equipment by using a flow of hydrocarbon production fluid to draw the injection fluid from a source and using pressure of the production fluid to pressurise th...  
WO/2019/204225A1
A well livening downhole tool (102) for the in-situ production of nitrogen (120) is provided. The well livening downhole tool (102) may produce nitrogen (120) in-situ in a well (104) to lighten the fluid column and lift the well fluids (...  
WO/2019/143312A3
Compositions and methods for removing scales within a subterranean environment are provided. The method includes placing a treatment fluid into the subterranean environment containing oil-laden scales and dissolving the oil-laden scales ...  
WO/2019/202372A1
An example tool for testing a wellbore includes a body having a longitudinal dimension configured for insertion into a casing of the wellbore, and a packer disposed along the body. The packer is controllable to expand against an inner di...  
WO/2019/190850A1
A scale sensor comprises sensor electrodes including an uncoated porous metal working electrode and a counter electrode; and an impedance analyzer electrically coupled to the sensor electrodes. A method of monitoring scale deposition com...  
WO/2019/185334A1
A wax cutter tool for removing wax from an internal wall of an oil well tubing, the wax cutter tool comprising: a central wax cutter tool body, the central wax cutter tool body being configured to be attached to an elongate member for de...  
WO/2019/190868A1
A system and method for preventing scale in a well. The system includes a conduit providing fluid communication between a first location and a second location and a sensor at the second location configured to measure scale deposition in ...  
WO/2019/173442A1
Supercritical carbon dioxide is directed into a wellbore to a specified depth. The supercritical carbon dioxide is directed at an inner surface of the wellbore at the specified depth. Scale is removed from the wall of the wellbore with t...  
WO/2019/169215A1
A method of treating an oil well or a gas well to restore production capacity. In certain embodiments, the method comprises mixing a coagulant, a surfactant, and water or production brine to produce a well treatment mixture; injecting th...  
WO/2019/165399A1
Systems and methods for drilling optimization of a subterranean well include securing a multifunction sub in line with a tubular string. A nozzle provides a fluid flow path from the central bore through a sidewall of the sub body, the no...  
WO/2019/159021A1
Device for the prevention of biofilm and sediment. (4) in borehole tubes (1) or distribution tubes for water, characterised in that ultrasonic waves are generated in the fluid (10) that flows through the borehole tube (1) or distribution...  
WO/2019/155074A1
Disclosed herein is a downhole cleaning apparatus and a method of cleaning a wellbore. The downhole cleaning apparatus has a body and a cleaning element coupled to the body. The cleaning element is selectively moveable in relation to the...  
WO/2019/151895A1
The invention relates to methods for restoring well productivity and to devices for cleaning downhole mesh filters without disassembling water lifting equipment. Well productivity is restored and maintained using an acoustic method based...  

Matches 1 - 50 out of 1,072