Matches 1 - 50 out of 104 1 2 3 >


Match Document Document Title
US20140174716 PETROLEUM WELL INTERVENTION WINCH SYSTEM  
A petroleum well intervention winch system includes a high pressure confining housing for a drum for a rope to a tool string. The pressure confining housing has a connector with an aperture for...
US20150041155 ELECTROMAGNETIC OIL PIPE PLUGGER  
An electromagnetic chemical adhesive pipe plugging system is provided, including an elongated hollow injection quill, said quill having a plurality of circumferentially spaced magnetic jaws, a...
US20120234533 PRECISION MARKING OF SUBSURFACE LOCATIONS  
A method for performing a downhole operation includes marking at least one location in a wellbore using a magnetized material. The magnetized material may generate a magnetic field stronger than a...
US20150083438 DOWNHOLE TOOL SHOCK ABSORBER WITH ELECTROMAGNETIC DAMPING  
A technique facilitates absorption of shock experienced by a tool in a borehole. The technique comprises coupling a tool into a tool string sized for delivery into the borehole. A shock absorber...
US20130068479 Well Tractor With Active Traction Control  
A downhole tool that includes a tractor for assisting movement of the tool through deviated portions of a wellbore. The tractor includes a working fluid that damps vibrations in the tractor by...
US20150260014 DOWNHOLE POWER GENERATION USING A MUD OPERATED PULSER  
The present disclosure relates to generating electricity downhole using a mud-operated pulser. A disclosed example embodiment of a mud pulser system includes a piston assembly movably disposed...
US20130192852 VALVE ASSEMBLY  
A downhole valve assembly including at least one membrane permeable to a flow of a downhole fluid, the at least one membrane defining a passage through a chamber. A quantity of particles is...
US20140020887 ECCENTRIC SAFETY VALVE  
A safety valve for use in a subterranean well can include a housing assembly having a flow passage extending longitudinally through the housing assembly. An outer diameter of the housing assembly...
US20120125597 ECCENTRIC SAFETY VALVE  
A safety valve for use in a subterranean well can include a housing assembly having a flow passage extending longitudinally through the housing assembly. An outer diameter of the housing assembly...
US20130186645 Downhole Robots and Methods of Using Same  
A wellbore workstring. The workstring comprises a tubular string and a plurality of robots coupled to the tubular string. The robots establish a wireless communication network within a wellbore...
US20130333872 Magnetic Field Downhole Tool Attachment  
A magnetic attachment mechanism for use with a downhole tool comprises a plurality of permanent magnets each having a magnetic field, a demagnetizer configured to at least partially cancel one or...
US20090277631 ROTATOR FOR WIRELINE CONVEYED WELLBORE INSTRUMENTS AND METHOD FOR ROTATING AN INSTRUMENT IN A WELLBORE  
An apparatus for rotating an instrument in a wellbore includes a non magnetic housing configured to traverse the interior of the wellbore. The housing has an external diameter smaller than an...
US20060180304 Down hole physical upgrading of heavy crude oils by selective energy absorption  
The present invention utilizes the ability of electromagnetic energy at the appropriate frequency to selectively deposit thermal energy in the heavy oil for precise control of cracking temperature...
US20120234530 Remote Subterranean Tool Activation System  
An actuation tool uses a lock that when released allows a moving magnet to move into position to repel another magnet. The repelling force on the second magnet moves it away from a locking...
US20090211748 Device for Conducting Cementing Operations and Inflow Regulation  
The present invention relates to a cementing or inflow regulation valve for conducting cementing operations or inflow regulation in a wellbore comprising a casing or tubing (2), wherein the...
US20110315378 INSULATING OR MODIFIED CONDUCTIVITY CASING IN CASING STRING  
A casing string in a wellbore has conductive tubulars and modified conductivity (MC) or non-conductive tubulars joined to one another. A MC/non-conductive tubular may be disposed between two...
US20130264051 WELL TOOLS SELECTIVELY RESPONSIVE TO MAGNETIC PATTERNS  
A system for use with a subterranean well can include a magnetic sensor, a magnetic device which propagates a magnetic field to the magnetic sensor, and a barrier positioned between the magnetic...
US20150034294 Submersible Electrical Machine and Method  
A submersible electrical machine includes a first magnetic package spaced axially from a second magnetic package, a first stator displaced axially from the first magnetic package by a first air...
US20150198004 ELECTROMAGNETIC ACTUATOR FOR A BLOWOUT PREVENTER  
A blowout preventer comprising: a body comprising a bore therethrough; a cavity disposed through the body and intersecting the bore; first and second closure members moveably disposed within the...
US20120217009 POSITIONING TOOL  
The invention relates to a positioning tool for determining the position in a casing downhole. The positioning tool has a longitudinal tool axis (A) and comprises a detecting unit (2) comprising a...
US20150122480 MAGNETIC RETRIEVAL APPARATUS  
A downhole retrieval tool includes a mandrel; an inner sleeve disposed around the mandrel; a plurality of magnets coupled to the inner sleeve; and an outer sleeve disposed around the plurality of...
US20150047824 Multi-stage Locking System for Selective Release of a Potential Energy Force to Set a Subterranean Tool  
An actuation tool uses a lock that when released allows a moving magnet to move into position to repel another magnet. Alternatively a magnetic field can be triggered in a stationary magnet such...
US20130020096 Method and Apparatus for Catching and Retrieving Objects in a Well  
A magnet assembly can be attached to, or placed in the vicinity of, a conventional bell nipple to generate a magnetic field within the central bore of the bell nipple. The magnetic field catches...
US20110284240 MECHANISM FOR ACTIVATING A PLURALITY OF DOWNHOLE DEVICES  
A mechanism for selectively activating a plurality of downhole pathways including a) a valve having: i) a sleeve coupled for movement between an open and normally closed position; and ii) a valve...
US20140069628 MAGNETIC GEAR FOR USE WITH WELLBORE INSTRUMENTS  
A wellbore rotating instrument system includes a source of rotational energy for transmission thereof to within a wellbore. At least one magnetic gear assembly is coupled at its input to an output...
US20140209312 Use of Ionized Water in Hydraulic Fracturing  
A method and system for generating an ionized fluid, injecting the ionized fluid into fissures in a subterranean formation, pressurizing the ionized fluid, whereby the crystalline structure of a...
US20120273187 Detecting a Reamer Position through a Magnet Field Sensor  
In one aspect of the present invention, a tool string component comprises at least one end that attaches to an adjacent component in a through bore. The invention also comprises a laterally...
US20140262268 Drilling and Completion Applications of Magnetorheological Fluid Barrier Pills  
A well apparatus including a magnetic field source positioned in a borehole and a magnetorheological fluid that forms a barrier pill proximate to the magnetic field source where the barrier pill...
US20090308617 WELLBORE INSTRUMENT MODULE HAVING MAGNETIC CLAMP FOR USE IN CASED WELLBORES  
A magnetically clamped wellbore instrument module includes a substantially non-magnetic housing configured to traverse an interior of the wellbore. At least one electromagnet is disposed at a...
US20110186297 APPLICATIONS OF SMART FLUIDS IN WELL SERVICE OPERATIONS  
Smart fluid compositions and methods of use in the well service operations.
US20120043070 Magnetic Slip Retention for Downhole Tool  
A downhole tool, such as a packer or liner hanger, has a mandrel on which slips are disposed for engaging a surrounding tubular downhole. When the tool is being run in or out of the hole, at least...
US20130327532 Remote Operation of Cementing Head  
Methods and systems are provided for remotely operating a cementing head. Remotely operating a cementing head (202) may allow for continued rotation as well as up or down movements (e.g., of a top...
US20140014334 System and Method for Umbilical-Less Positional Feedback of a Subsea Wellhead Member Disposed in a Subsea Wellhead Assembly  
A positional feedback system includes a seal assembly coupled to a running tool, the seal assembly having a seal ring and an energizing ring positioned between a hanger and a subsea wellhead. The...
US20140251592 ROTATING MAGNETIC FIELD DOWNHOLE POWER GENERATION DEVICE  
The present disclosure relates to a downhole rotating magnetic field generator, wherein a stator assembly is formed by fixedly connecting a guiding stator, windings, and a body together, and a...
US20090173504 Transverse magnetization of casing string tubulars  
A method and apparatus for imparting a transverse magnetization to a wellbore tubular is disclosed. In certain exemplary embodiments, tubulars are magnetized to include at least one flux reversal...
US20140000900 DRILL STRING MOUNTABLE WELLBORE CLEANUP APPARATUS AND METHOD  
A drill pipe mountable wellbore cleaning tool apparatus is of an improved configuration that enables attachment to a drill pipe joint having first and second connector end portions and a...
US20090084536 System and Method for Downhole Orientation Measurement  
A technique provides an orientation system combined with downhole equipment used in a well. An orientation device is mounted in the downhole equipment, e.g. a bottom hole assembly, for actuation...
US20100071894 ELECTROMAGNETIC BASED SYSTEM AND METHOD FOR ENHANCING SUBSURFACE RECOVERY OF FLUID WITHIN A PERMEABLE FORMATION  
The invention provides for systems and methods of enhancing crude oil flow by radiating electromagnetic energy in the form of focused far field electromagnetic energy into a permeable formation...
US20090211751 FIELD-RESPONSIVE FLUIDS  
A field-responsive fluid which enters a semi-solid state in the presence of an energy field is improved by use of a plurality of energy field responsive particles which form chains in response to...
US20130020066 APPARATUS AND METHOD FOR TREATING A SUBTERRANEAN FORMATION USING DIVERSION  
Apparatus and method comprising a plurality of particles which are magnetically attracted to one another in response to exposure to a magnetic field, and which maintain attraction to one another...
US20130319685 Downhole Tool Coupling and Method of its Use  
A downhole tool coupling (10) comprises first (11) and second (12) downhole tool elements that are securable one to the other in a releasably locking manner by moving the tool elements from a...
US20100257927 Electromagnetic Free Point Tool and Methods of Use  
Electromagnetic free point tools are configured to determine the free point of a downhole pipe in a wellbore utilizing the amplitude or phase change in a transmitted signal for stressed and...
US20140238662 MITIGATION OF DOWNHOLE COMPONENT VIBRATION USING ELECTROMAGNETIC VIBRATION REDUCTION  
An apparatus for reducing vibration in a downhole component includes: an electrically conductive auxiliary mass attached to the component and configured to vibrate in a direction corresponding to...
US20130056197 OPTICAL CASING COLLAR LOCATOR SYSTEMS AND METHODS  
Disclosed are fiber optic enabled casing collar locator systems including a wireline sonde or a coil tubing sonde apparatus configured to be conveyed through a casing string by a fiber optic...
US20150041146 Magnetic Valve Assembly  
An actuation device comprises a housing comprising one or more ports, a magnetic valve component, and a central flowbore. The central flowbore is configured to receive a disposable member...
US20120012319 ENHANCED HYDROCARBON RECOVERY USING MICROWAVE HEATING  
A downhole tool utilizing microwave energy for stimulating production of hydrocarbons from a drilled well. A microwave generator is disposed within the body of the tool and supplied with power...
US20100186945 MAGNET FIXING DEVICE IN A CLEANING TOOL  
A magnet fixing device in a cleaning tool (1) for use in a borehole where the cleaning tool (1) is externally provided with at least one projection (8) and at least two recesses (6) and where at...
US20110088890 MULTIPLE MAGNETIC SENSOR RANGING METHOD AND SYSTEM  
A system and methods for drilling a well in an orientation with respect to an existing well are provided. Specifically, one method in accordance with present embodiments includes producing a...
US20140151029 HYDROCARBON RESOURCE RECOVERY SYSTEM INCLUDING DIFFERENT HYDROCARBON RESOURCE RECOVERY CAPACITIES AND RELATED METHODS  
A hydrocarbon resource recovery system for a wellbore in a subterranean formation. The hydrocarbon resource recovery system may include a radio frequency (RF) source, and an antenna configured to...
US20090194284 Magnetic Motor Shaft Couplings For Wellbore Applications  
An actuator for operating downhole tools includes a tool body and one or more members configured to perform a wellbore task. The tool may include a sealed power and a driven section in pressure...

Matches 1 - 50 out of 104 1 2 3 >