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WO/2012/031185A1 |
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/2011/149668A1 |
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/2011/146251A1 |
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/2011/145950A1 |
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/2011/139837A2 |
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/2011/139831A2 |
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/2011/130523A2 |
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/2011/126667A1 |
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/2011/113086A1 |
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/2011/113032A2 |
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/2011/107082A1 |
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/2011/095816A2 |
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/2011/091157A2 |
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/2011/091165A2 |
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/2011/088576A1 |
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/2011/090481A1 |
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/2011/085753A1 |
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/2011/080759A1 |
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/2011/076935A1 |
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/2011/062720A1 |
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/2011/062588A1 |
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/2011/043872A2 |
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/2011/041572A1 |
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/2011/036244A1 |
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/2011/035251A2 |
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/2011/028448A2 |
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/2011/020917A1 |
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/2011/018036A1 |
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/2011/018617A1 |
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/2011/014057A1 |
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/2011/002943A2 |
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/2010/149643A1 |
The invention relates to an assembly to be run with a well tubular having openings provided in the wall and for being arranged in a well bore and thereby forming a space between said tubing and the well bore surface. The assembly compris...
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WO/2010/151176A2 |
The invention relates to the oil industry and can be used for eliminating paraffin deposits and hydrate plugs in natural flow, gas lift or pump operated oil and gas wells. The invention achieves the result of reducing costs, increasing t...
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WO/2010/143000A2 |
A method of removing debris from a well is disclosed, comprising RIH to required depth with coiled tubing having at least one closed check valve, moving a sleeve through the check valve to hold it open, opening a flow control valve locat...
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WO/2010/140895A1 |
A landing sub for a wiper (1), the wiper (1) being adapted for internal removal of drilling mud from a drill string (2) during its pull-out from a borehole, wherein the landing sub (10) is mountable in the drill string (2), the landing s...
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WO/2010/138020A1 |
The invention relates to pumping engineering, mainly to well jet devices for well development. The well jet device for removing sand plugs from bottom holes comprises an ejector pump that is mounted on the flexible tubing string and incl...
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WO/2010/135245A2 |
A debris removal tool uses a screen to separate the debris coming into the tool from the moving fluid. The fluid that gets through the screen then operates a flow sensing device that is preferably a turbine whose speed of rotation or oth...
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WO/2010/135115A2 |
Disclosed herein is a dissolvable downhole tool. The tool includes, a dissolvable body constructed of at least two materials and at least one of the at least two materials is a reactive material, and a first material of the at least two ...
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WO/2010/132807A2 |
A mill is configured to have large debris passages disposed among a series of radially extending blades. The mill center is adapted to accept a retention nut that supports a tool that secures the downhole tool being milled out, such as a...
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WO/2010/123963A2 |
A downhole wellbore filtercake breaker is disclosed comprising one or more breaker chemicals (or activators thereof) capable of being activated with radiation to form one or more breaker reaction products which in turn are capable of rea...
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WO/2010/120180A1 |
There is described a device for machining apparatus (2) arranged for machining of a portion of a casing (12) positioned in a wellbore (1), wherein a return fluid conduit (23) extends from the machining apparatus (2) in a direction toward...
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WO/2010/120453A2 |
A downhole tubular scraper is run in on slickline with an on board power supply. It features counter-rotating scrapers without an anchor in one embodiment or an anchor with single rotating scrapers. The scraper is selectively operated to...
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WO/2010/120463A1 |
A shifting tool is run on slickline and has an on board power supply. Rotary motion of the motor is converted to linear motion of the shifting tool using a ball screw device. The grip is obtained with longitudinal motion of a grip linkag...
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WO/2010/120454A1 |
A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sa...
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WO/2010/120466A2 |
A bottom hole assembly is run into the wellbore on slickline with a tractor to assist in movement of the bottom hole assembly through a deviation in either direction. The tractor can have retractable drive components and can be responsiv...
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WO/2010/120455A1 |
A tubular cutter is run in on slickline. It features onboard power to selectively actuate an anchor and to initiate a tubular cutting operation with a cutter that is extendable and rotatable on its axis and the axis of the tool that carr...
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WO/2010/111226A2 |
The invention is an anti-agglomeration composition for preventing hydrates from binding together and forming plugs in pipelines, particularly from off shore gas wells. The inventive composition contains a combination of a surfactant and ...
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WO/2010/110676A2 |
There is disclosed a subsea cooler for the cooling of a fluid flowing in a subsea flow line. The subsea cooler comprises an inlet and an outlet which are connectable to the subsea flow line and at least two cooling sections arranged in f...
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WO/2010/110674A2 |
There is provided a subsea system for increasing pressure and/or flow rate in a flow line, the subsea system being arranged in fluid communication with said flow line which receives fluid from at least one fluid source. The subsea system...
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WO/2010/094911A2 |
An additive fluid is selectively injected into a process fluid in a pipeline or well using an injection line in which there is a directional control valve. The valve is operated in a pulsed mode such that it is pulsed between open and cl...
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