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WO/2012/060712 |
A method and a device for cleaning an area (48) located inside a restriction (46) by means of a mechanical cleaning tool (1), the restriction (46) having a smaller cross-sectional dimension than the area (48) to be cleaned, the comprisin...
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WO/2012/058144 |
A system for producing and transporting crude oil, comprising a well for producing the crude oil; a processing facility for processing the crude oil; and a pipeline traversing at least a portion of the distance between the well and the p...
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WO/2012/058143 |
A method of producing and transporting crude oil, comprising extracting crude oil from a well; placing the crude oil in a pipeline to transport the crude oil away from the well, wherein at least a portion of the pipeline travels through ...
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WO/2012/036854 |
A subterranean debris catcher swirls the incoming debris laden stream by putting grooves or spiral projections on the inside of the inlet pipe. In some embodiments the solids come out of openings in the side of the inlet pipe and in othe...
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WO/2012/036854 |
A subterranean debris catcher swirls the incoming debris laden stream by putting grooves or spiral projections on the inside of the inlet pipe. In some embodiments the solids come out of openings in the side of the inlet pipe and in othe...
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WO/2012/031185 |
A method and/or system is provided for milling an opening into a tubular positioned in a well bore using coiled tubing. Surface equipment includes a programmable controller at the surface, which is utilized for controlling an injector mo...
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WO/2011/149668 |
A cleanout assembly for removal of debris from a debris chamber in a wellbore cleaning tool. The cleanout assembly includes a mandrel, a boot radially surrounding the mandrel and a debris chamber defined radially between the mandrel and ...
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WO/2011/146253 |
A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel. A removable insert resides upon the tool mandrel. The insert retai...
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WO/2011/145950 |
An arrangement for resolving a hydrate plug (1) in a pipeline (2), such as tubing, drill pipe, casing etc., is described, said arrangement comprising a heating device (4) run on wire line. The heating device (4) is elongated and spear sh...
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WO/2011/146251 |
A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with a removable insert which contains one or more magnets. The ins...
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WO/2011/139831 |
A wellbore cleaning device having a unitary tool mandrel surrounded by a retaining sleeve that is rotatable with respect to the mandrel. A locking ring is used to secure the retaining sleeve to the mandrel. Cleaning blades are retained w...
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WO/2011/139837 |
A brush assembly for cleaning a surrounding tubular member. The brush assembly includes a brush portion that is rotationally moveable with respect to a central tool mandrel and debris chamber. The brush portion includes at least one brus...
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WO/2011/139837 |
A brush assembly for cleaning a surrounding tubular member. The brush assembly includes a brush portion that is rotationally moveable with respect to a central tool mandrel and debris chamber. The brush portion includes at least one brus...
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WO/2011/139831 |
A wellbore cleaning device having a unitary tool mandrel surrounded by a retaining sleeve that is rotatable with respect to the mandrel. A locking ring is used to secure the retaining sleeve to the mandrel. Cleaning blades are retained w...
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WO/2011/130523 |
An assembly for removing debris and/or conducting a wellbore operation may include a mandrel, a sliding sleeve rotationally coupled to the mandrel, and a flushing sleeve coupled to the sliding sleeve. A releasable connection may temporar...
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WO/2011/130523 |
An assembly for removing debris and/or conducting a wellbore operation may include a mandrel, a sliding sleeve rotationally coupled to the mandrel, and a flushing sleeve coupled to the sliding sleeve. A releasable connection may temporar...
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WO/2011/126667 |
The present invention is directed to methods and systems for obtaining log data on a cased wellbore concurrently with wellbore cleanout operations. In some such embodiments, a combination of at least one cleaning means and at least one l...
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WO/2011/113086 |
The invention provides for a jetting tool for use with a drillstring. The tool generally includes a tubular main body having an inlet and an outlet arranged in fluid communication via a fluid conduit, the main body defining at least one ...
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WO/2011/113032 |
A washing assembly having at least one nozzle in fluid communication with at least one fluid source. The at least one nozzle is angled slightly inwards and downwards towards the internal bore of the washing assembly. The washing assembly...
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WO/2011/113032 |
A washing assembly having at least one nozzle in fluid communication with at least one fluid source. The at least one nozzle is angled slightly inwards and downwards towards the internal bore of the washing assembly. The washing assembly...
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WO/2011/107082 |
The invention relates to a device (1) for producing high-pressure pulses, comprising a housing (2) having a pressure chamber (8), which can be filled with a fluid under pressure by means of a high-pressure supply line (9), wherein the ho...
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WO/2011/095816 |
A cleaning tool (1) for use in cleaning ferrous material from a wellbore has a magnetic cleaning functionality by provision of magnets (5) in an Halbach array on a downhole tool component of a workstring. The Halbach array may be an Halb...
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WO/2011/091165 |
Disclosed is a downhole well filter and method of use in a tubing string with a power head for creating reverse flow. The filter assembly includes an inner pipe into which fluid flow is directed. The inner pipe is positioned within a cyl...
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WO/2011/088576 |
A wellbore obstruction-clearing tool connected to the bottom of a tubing string, such as casing, utilizes a sleeve which is axially and rotationally moveable in response to axial reciprocation of a tubing string to engage and clear obstr...
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WO/2011/091157 |
Disclosed is a power head for connection in a tubing string suspended in a subterranean location in a wellbore for use in methods removing debris from the wellbore. When the power head is in the closed position, well fluids pumped down t...
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WO/2011/091165 |
Disclosed is a downhole well filter (800) and method of use in a tubing string with a power head (704) for creating reverse flow. The filter assembly includes an inner pipe (820) into which fluid flow is directed. The inner pipe is posit...
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WO/2011/091157 |
Disclosed is a power head ( 704 ) for connection in a tubing string ( 702 ) suspended in a subterranean location in a wellbore for use in methods removing debris from the wellbore. When the power head is in the closed position, well flui...
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WO/2011/090481 |
During drilling of an earth borehole, resistance measurements may be made at the drill bit through use of a bottom hole assembly that includes a drill bit having a sensor, such as an electrode, located generally at an exterior surface of...
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WO/2011/085753 |
The invention relates to a deep-well pump system, comprising an immersion pump (20) and a riser (15) to be accommodated in the well, wherein a water treatment system for cleaning the pumped water is arranged in the riser (15).
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WO/2011/080759 |
An additive capable of avoiding formation of impurities and capable of removing or dissolving impurities formed and accumulated at the interphase of organic and aqueous layers on reaction between calcium naphthenate and sulfur compound i...
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WO/2011/076935 |
The present invention relates to a downhole tool (1) for borehole cleaning or for moving fluid in a borehole. The tool comprises a tool housing (29), a chamber inlet (6) and a chamber outlet (36), and the tool housing comprises a pump (8...
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WO/2011/062588 |
A jetting nozzle for forming boreholes or for cleaning out other tubular formations has a vibration-inducing mechanism that maximizing penetration rates and expands the diameter of the boreholes. The vibration-inducing mechanism can be a...
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WO/2011/061239 |
A downhole circulation apparatus 2 comprises at least one tubular body portion 4 defining a first through-flow passage 6 through which drilling fluid can pass along the drill string. A first sleeve 10 is slidably mounted in the tubular b...
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WO/2011/062720 |
Provided are piggable static mixers, apparatus for generating a non-plugging hydrate slurry, systems incorporating the same, and methods of using the same. Piggable static mixers include an inlet orifice, an outlet orifice in fluid commu...
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WO/2011/043872 |
An intelligent completion system includes a production tubing configured for production from multiple zones in a wellbore; at least one flow control valve disposed on the production tubing for each of the multiple zones, wherein the at l...
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WO/2011/043872 |
An intelligent completion system includes a production tubing configured for production from multiple zones in a wellbore; at least one flow control valve disposed on the production tubing for each of the multiple zones, wherein the at l...
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WO/2011/041572 |
The invention relates to a double string pump for pumping liquids to the surface of a hydrocarbon well and especially a hydrocarbon well that is producing both natural gas and liquid fluids. The double string pump includes a hollow tube ...
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WO/2011/036244 |
The present invention relates to a brush assembly for performing a cleaning and/or brushing operation in a casing downhole, the brush assembly having a longitudinal axis and comprising at least one brushing element. The brushing element ...
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WO/2011/038107 |
A chemical injection system for controlling injection of an injection fluid from an injection fluid supply (5) at a surface location into a production tubing assembly (100) having an upper flow path (102), a first flow zone (104), and a ...
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WO/2011/035251 |
Apparatus and methods for performing downhole operations. The apparatus can include a sealing mechanism having an inner bore formed therethrough; a check valve adjacent the sealing mechanism; a circulation device adjacent the check valve...
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WO/2011/035251 |
Apparatus and methods for performing downhole operations. The apparatus can include a sealing mechanism having an inner bore formed therethrough; a check valve adjacent the sealing mechanism; a circulation device adjacent the check valve...
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WO/2011/028448 |
A debris catcher uses induced circulation from a venturi to urge debris laden flow into the lower end of a housing. An inlet tube maintains velocity so as to keep the debris moving with the fluid stream as it goes up the inlet tube. A sc...
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WO/2011/028448 |
A debris catcher uses induced circulation from a venturi to urge debris laden flow into the lower end of a housing. An inlet tube maintains velocity so as to keep the debris moving with the fluid stream as it goes up the inlet tube. A sc...
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WO/2011/020917 |
The present invention relates to a downhole tool head (1) for mounting onto a downhole tool (10) for drilling in a formation downhole or for releasing precipitated solids (2), such as ice, scales or the like, in a cavity fluid in a pipel...
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WO/2011/018036 |
A pressure reducing system for fuel gas and a natural gas dewaxing vehicle are disclosed. The pressure reducing system(6) comprises fuel gas pipelines which consist of successively connected a high pressure pipeline(41), a medium pressur...
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WO/2011/018617 |
A stop collar or like device is formed in one piece to have a portion for a tool to be attached. Movement of the tool allows the collar to be drawn tightly into engagement onto a pipe or other tubular member. A bow centraliser has altern...
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WO/2011/017105 |
A well tool (100) for use in cleaning a well of fluids and debris characterized by one or more wiper elements (30) for swabbing the wellbore and internal passageways (11, 15) and valves (70, 72) in the tool, permitting forward and revers...
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WO/2011/014057 |
A method and a thermo-chemical system for removing organic deposits such as wax, asphaltenes and resins in oil well borehole, and oil production and transportation tubing and pathway.
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WO/2011/002943 |
Systems, apparatus and methods are described that can be used for cleaning wells using unfiltered fluids and fluids that contain solid matter. A spray head assembly mounted in a pumping station comprises a hydrodynamic mixing chamber con...
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WO/2011/002943 |
Systems, apparatus and methods are described that can be used for cleaning wells using unfiltered fluids and fluids that contain solid matter. A spray head assembly mounted in a pumping station comprises a hydrodynamic mixing chamber con...
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