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WO/2014/035375A1 |
Disclosed are systems and methods of effectively wiping and displacing a deep water riser prior to disconnection from a blowout preventer. An exemplary riser displacement system includes a mandrel coupled to a work string, a seal contain...
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WO/2014/030050A1 |
The invention relates to a hydraulic cavitation generator having a tubular body which is open on two sides, a confuser and having a diffuser, wherein the channel within the body has two steps having different cross sections. The confuser...
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WO/2014/031006A1 |
A movable collecting device (1) for downhole separation and removal of particulate matter (8) from a petroleum well, the collecting device (1) having a first end portion (11) and a second end portion (12), an exterior and an interior; th...
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WO/2014/013250A2 |
A magnetic cleaning tool for collecting ferrous debris in a wellbore and a method of cleaning a wellbore. The magnetic cleaning tool has a tool body for attachment in a work string, one or more magnets supported on the tool body, and a s...
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WO/2014/011587A1 |
A breaker fluid composition and methods for using said breaker fluid composition are provided, where the breaker fluid includes a non-aqueous base fluid, a precipitated silica, an acid source, and, in some embodiments, a chelant.
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WO/2014/008482A1 |
A method to remove an alkaline earth.metal salt scale deposits from a pipe comprises introducing a laser head (4) into a pipe ( 1), isolating a pipe section to be cleaned (8) adjacent to a scale deposit (2) on an interior wall of a pipe ...
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WO/2014/004697A2 |
The productivity of hydrocarbons from hydrocarbon-bearing calcareous or siliceous formations is enhanced by contacting the formation with a well treatment composition which contains a hydrofluoric acid source, a phosphonate acid, ester o...
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WO/2013/190093A2 |
A predictive flow assurance assessment method comprising: - measuring (S1) at least one actual parameter related to a multiphase fluid mixture (10) flowing in a main flow line (11, 14); - taking (S2) a sample (60) from the multiphase flu...
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WO/2013/184238A1 |
Systems and methods for secondary sealing of a perforation present within a wellbore casing associated with a primary sealing agent. The wellbore casing defines a casing conduit present within a wellbore that extends between a surface re...
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WO/2013/179236A1 |
Method and system for removal of heavy metal ions from a rich hydrate inhibitor stream, wherein the method comprises • a) adding a selective heavy metal reactant to the rich hydrate inhibitor stream, forming a fluid stream comprising h...
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WO/2013/133719A1 |
A method for the combined perforation, cleaning, and the subsequent plugging of a longitudinal section (LI) of a well (1), the well (1) being provided with two pipe bodies (5, 7) placed substantially concentrically, and the method includ...
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WO/2013/126639A1 |
Disclosed are aqueous-based compositions and methods for treating a subterranean formation for inhibiting formation damage after the treatment. Compositions include an aqueous-based fluid, gelling agents, sparingly-soluble crosslinking a...
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WO/2012/115763A9 |
A treatment agent retained in a housing may be slowly and continuously released into a targeted area in a well or in a flow conduit. The housing contains a confinement area. Movement of the treatment agent is limited in the confinement a...
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WO/2013/123040A2 |
Improved darts and methods of using these darts in subterranean wells are disclosed. The improved dart comprises a foam portion and a rubber portion coupled to the foam portion. A dart nose is coupled to at least one of the foam portion ...
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WO/2013/119138A1 |
The invention relates to acoustic (ultrasonic) methods of action on liquid and gas-liquid hydrocarbon mixtures in mechanical, physical and chemical processes of heat-mass exchange, mixing, emulsifying, dispersing and thermal processing. ...
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WO/2013/109600A2 |
An object for wiping a subterranean casing is described herein. The object may include an inner core with a first width. The ball may also include a deformable layer surrounding the inner core. The deformable layer may have a second widt...
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WO/2013/105865A1 |
A method for removal of a hydrate plug (7) in a tube (92) in connection with a petroleum well (9) is described, the method comprising: - to provide a hydrate plug remover (2), where the hydrate plug remover (2) comprises a collecting con...
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WO/2013/096385A1 |
A system to clean a tubular member may include an apparatus to support a tubular member having a bore with a longitudinal axis extending therethrough, and a fluid dispensing system disposed adjacent to an opening of the apparatus, the fl...
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WO/2013/090347A1 |
Lactone/alkylene oxide polymers are useful as additives to inhibit or prevent the deposition of paraffin in hydrocarbon fluids, particularly crude oil produced from a subterranean formation. These polymers are random or block polymers ma...
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WO/2013/079572A1 |
The present invention relates to a cleaning tool for cleaning and treating an inner surface of a downhole casing. The cleaning tool comprises a tool housing, a mechanical cleaning tool section comprising mechanical cleaning elements for ...
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WO/2013/073948A1 |
The present invention relates to an apparatus (200) and a method for collecting debris (111) in a wellbore, the apparatus comprising : - a housing (201, 202, 203) for receiving debris (111), the housing (201, 202, 203) being defined by a...
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WO/2013/066527A1 |
Clathrate reservoirs of Class II are modified in order to improve the ability to produce hydrocarbons from them. Specifically a method for improving producibility of subsurface clathrate formation underlain by a mobile aquifer includes d...
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WO/2013/051958A1 |
The group of inventions relates to the oil and gas industry and is intended for reviving the working condition of a well during production. The method for reviving the working condition of an oil and gas producing well comprises three st...
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WO/2013/043836A1 |
An apparatus having a body including a plurality of packers and a plurality of ports between the packers. The packers and ports are spaced along a longitudinal axis of the body. The apparatus also includes a control module to obtain a de...
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WO/2013/038100A1 |
The invention relates to a composition for inhibiting corrosion of the upper part (or roof) of a pipeline for conveying wet hydrocarbons, i.e. hydrocarbons comprising a variable amount of water, said composition comprising at least one A...
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WO/2013/036333A2 |
A debris reducer for reducing debris within a fluid flow line having a lower screen that is secured within the flow line, the lower screen having a lower screen cage with a lower cutting portion. A debris reducer element is retained with...
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WO/2013/022648A2 |
An aqueous breaking fluid having an aqueous fluid, powder particles, and at least one reducing sugar may be helpful in degrading a polymeric filter cake downhole. The aqueous breaking fluid may be introduced through a wellbore. The aqueo...
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WO/2013/012341A1 |
A cleaning tool (1) for use in boreholes and pipes, the cleaning tool (1) including a stator (2) and a rotor (16) which is rotatable around the stator (2), and there being at least one rotor opening (32) arranged in the rotor (16) for li...
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WO/2013/009332A1 |
A thermal convertor is formed from a controlled combustion chamber selectively supplied by an appropriate fuel, preferably diesel, and compressed air. The control over the temperature of the combustion chamber is provided by regulating t...
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WO/2013/007025A1 |
A valve comprises an outer casing, an inner casing, a piston, and a rupture disk. The inner casing is disposed in the outer casing. A space is formed between the outer casing and the inner casing. The outer casing is provided with a firs...
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WO/2012/174600A1 |
A flushing tool for a perforated tubing in a production tubing string is described. The flushing tool includes a chamber that is sealed at a pressure at or below atmospheric pressure when the flushing tool is in its sealed configuration,...
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WO/2012/173860A2 |
A method for delaying the removal of a majority of an oil-based mud (OBM) filter cake from a hydrocarbon reservoir wellbore that utilizes a multiple phase composition is described. The use of the multiple phase composition allows for a m...
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WO/2012/170464A2 |
A method and apparatus for cleaning a down hole well is presented. The apparatus utilizes a tool body having a plurality of discharge nozzles for jetting streams of filtered water at pressures exceeding 15,000 psi (1034 Bar) perpendicula...
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WO/2012/162593A2 |
Apparatus for use in, or forming part of, a separation process to be implemented in separation processor technology, the apparatus comprising synthetic bubbles or beads configured with a polymer or polymer-based material functionalized t...
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WO/2012/150864A1 |
A method for removing scale (2) from the upper portion of a well (4), wherein a tool (1) with a rotatable cleaning head (10) is coupled to a wireline (14) and is moved into the well (4), wherein the method comprises: - providing av rolle...
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WO/2012/151376A2 |
A method for performing an oil field service including forming a fluid comprising ammonium salt and exposing an equipment surface to the fluid, wherein the surface retains less residue than if no exposing occurred. A method for preparing...
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WO/2012/146725A1 |
The present invention relates to a downhole cleaning system for cleaning an element inside a casing in a wellbore comprising well fluid having a wellbore pressure, comprising the casing, a cleaning tool having a longitudinal direction an...
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WO/2012/144277A1 |
Provided are a method for inhibiting scale including inorganic cations such as, for example, calcium and a geothermal power generating device that can be economically operated while inhibiting the deposition of the scale. The geothermal ...
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WO/2012/142918A1 |
Disclosed is a pneumatic control system for a dust collector, comprising a first gas-supply device, at least one slag-flushing gas control valve (5) connected to the first gas-supply device for controlling a slag-flushing gas switch, and...
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WO/2012/134265A1 |
There is provided a method for the solidification of hydrocarbon wax from a liquid hydrocarbon mixture containing said hydrocarbon wax and non-wax hydrocarbons, the method comprising the step of contacting the liquid hydrocarbon mixture ...
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WO/2012/125660A2 |
A dual wiper plug system having a first wiper including a first body having a first bore therethrough, and at least one wiper fin disposed around the body, a second wiper disposed axially above the first wiper, the second wiper including...
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WO/2012/105852A1 |
A tool (10) is described for the handling of wells through a formation, and which shall be taken out of operation with a device for a closing plug of a material that can be hardened, such as concrete, where there is a casing pipe in the ...
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WO/2012/102694A1 |
Disclosed is a downhole knock-out tool (900) for use in a tubing string (702) with a power head (704) for creating reverse flow. The tool has a cylindrical housing (910) with an inner tube (920) in the housing directing well fluids again...
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WO/2012/099668A2 |
Downhole cutting tools comprise a mandrel, a housing, a sleeve and a cutting blade. The mandrel comprises an inner wall surface defining a bore, and an outer wall surface. The housing is secured to the outer wall surface of the mandrel a...
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WO/2012/096945A2 |
One method for treating cuttings from a subsurface formation may include treating the cuttings with at least one surfactant and at least one stabilizing agent. The method may include contacting the cuttings with the stabilizing agent(s) ...
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WO/2012/091986A2 |
A process of making a foamed conformable material by reaction injection molding comprises providing a first component from a first feed tank at a first flow rate, via a first conduit, to a mixing device; providing a second component from...
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WO/2012/088132A2 |
The debris collection device operates on an eductor principle with motive fluid delivered from the surface into an eductor housing inlet. The eductor outlet goes into a surrounding annular space and splits with some flow going to the mil...
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WO/2012/082463A2 |
A debris removal tool has a lower end pickup hose into which debris laden fluid is pulled when there is circulation through the debris removal tool from the surface. An anchor near the open end of the hose stabilizes the lower end near a...
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WO/2012/082466A2 |
A debris cleanup tool uses an eductor principle to induce flow into a lower end to bring debris into a housing where the debris will either settle out or be screened out and the remaining fluid drawn up into the eductor with motive force...
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WO/2012/083114A2 |
Of the methods provided herein, one example of a method that is disclosed includes the steps of placing a stand-alone-screen that does not comprise a concentric washpipe in a well bore, and forming an in situ coated stand-alone-screen in...
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