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8691734 Method of fracturing with phenothiazine stabilizer  
Well treatment fluids and methods of treating high temperature subterranean formations of up to about 500° F. (260° C.) are provided. The well treatment fluids and methods utilize a high m...
8689879 Fluid displacement methods and apparatus for hydrocarbons in subsea production tubing  
The method for subsea well intervention includes creating a lubricator section within the production tubing of the well. The lubricator section can then be flushed of hydrocarbons facilitating...
8689892 Wellbore pressure control device  
An apparatus for controlling fluid pressure, useful in the production of hydrocarbons from underground reservoirs comprises at least one conical segment. A conical segment comprises: an inner...
8689871 Compositions and methods for well completions  
Expansive cements for use in cementing subterranean wells contain an encapsulated gas-generating substance. The gas-generating substance comprises one or more materials that release hydrogen,...
8689883 Adjustable venturi valve  
A gas-handling valve for use in the application where adjustable maximum critical flow rate is required. The valve is a venturi valve and has an annular flow path formed between a housing and a...
8689867 Method and apparatus for pipe-conveyed well logging  
A well logging instrument deployment device according to this aspect of the invention includes a housing configured to be coupled to a pipe string. A latch disposed in the housing and is configured...
8689865 Process for enhanced production of heavy oil using microwaves  
A process for utilizing microwaves to heat H2O within a subterranean region wherein the heated H2O contacts heavy oil in the subterranean region to lower the viscosity of the heavy oil and improve...
8689864 Activation device  
A device for activating a downhole tool is described. The device comprises a first elongate member defining a toothed surface portion, a second elongate member defining a toothed surface portion...
8689886 Gate valve seat and seat ring  
A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat is mounted to the body at the intersection of the flow passage and the cavity. A gate is...
8689889 Downhole magnet tool and method of assembly  
A downhole magnet tool comprises a top sub having an inner bore terminating in a downhole facing open end, the inner bore defining a centralizer receptacle of smaller width than a width of the...
8691737 Consolidating spacer fluids and methods of use  
Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus.
8689880 Multipart sliding joint for floating rig  
A system for interconnecting a floating rig and a riser assembly includes a rotating control device permitting pressurization of the riser assembly; and a sliding joint connected to the rotating...
8691731 Heat generation process for treating oilfield deposits  
Generating heat within a combination solvent/acid system removes undesirable deposits from petroleum reservoir formations (especially the near well-bore region), oilfield equipment, and petroleum...
8691732 Water-based fluid for preventing the formation of W/O emulsions or for resolving W/O emulsions already formed in porous matrices  
A water-based fluid, containing: a non-ionic surfactant, which is stable in a temperature range from 10 to 90° C. and soluble in water; and a salt, wherein the non-ionic surfactant contains an ...
8689891 Ball and dart launcher with parallel axis release  
A universal dart launcher launches a dart by moving a dart from a first position to a second position. The universal dart launcher has a launcher body defining a central bore having an axis and...
8689890 Running tool with feedback mechanism  
A running tool has a stem for connecting to a string of conduit, a body, and a plurality of functional positions selected in response to rotation of the stem relative to the body. A feedback...
8689884 Mud pulse telemetry system  
A mud pulser tool to be positioned into a downhole environment is disclosed. The mud pulser tool includes a control valve that is selectively opened to allow fluid to flow through the mud pulser...
8689863 External grip tubular running tool  
A method for running a tubular string in wellbore operations according to one or more aspects of the present disclosure includes providing a tubular running tool comprising gripping assembly...
8689868 Tractor communication/control and select fire perforating switch simulations  
Apparatus and methods for controlling and communicating with one or more tools in a downhole tool string including a tractor, an auxiliary tractor tool, a logging tool, a safety sub, a release...
8691735 Method of fracturing using boron crosslinkers  
Fracturing fluid compositions and methods of fracturing subterranean formations using polyboronic compounds as crosslinking agents are provided. The compositions and methods of the present...
8692989 Method for hydrocarbon well completion  
A method of completing a hydrocarbon lateral well in a target shale formation. The method uses a data log generated from an optical flow cell assembly to identify areas in the lateral well of high...
8691736 Swellable polymer with cationic sites  
The invention is directed to long lasting crosslinked water-soluble swellable polymers, methods for making same, and their uses. More particularly, the invention relates to a composition comprising...
8689874 Visco-elastic surfactant spacers  
A spacer for use in an oil well cementing operation comprises an aqueous solution of a visco-elastic surfactant. A method of treating a well in a cementing operation comprises pumping the spacer...
8689887 Methods of operating a radial flow valve  
A radial flow valve is disclosed which includes a plurality of flow openings, a first piston and a second piston, the first and second pistons being independently actuable relative to one another,...
8689904 Detection of gas influx into a wellbore  
An influx of gas into a borehole can be detected by deploying a string of acoustic sensors along a drill string or other conduit to monitor an acoustic characteristic, such as velocity or...
8689893 Check valve  
The present invention provides a check valve comprising a valve housing (1,2), a substantially circular flapper (3), a valve seat (16) for the flapper (3), an expandable chamber (11) in fluid...
8689875 Formation treatment using electromagnetic radiation  
Treating a subterranean formation includes injecting a magnetically permeable material into the formation and energizing the magnetically permeable material using electromagnetic radiation. The...
8689885 Bi-directional flapper/sealing mechanism and technique  
An isolation valve can include a pivot connecting a closure member to an actuator member which displaces when the isolation valve is actuated between open and closed configurations, whereby the...
8689882 Flexible hang-off arrangement for a catenary riser  
Flexible hang-off arrangement is provided for a catenary riser suspended from an offshore or inshore platform, which includes floating or fixed platforms, vessels or/and buoys. The bending loads in...
8689872 Methods and compositions for controlling formation fines and reducing proppant flow-back  
Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions,...
8689878 Junk basket with self clean assembly and methods of using same  
A downhole tool for removing debris from fluid flowing through the downhole tool uses a screen member and wiper member, the wiper member having at least one window disposed through the inner and...
8689862 Tube/pipe spooling device  
A reel assembly for supplying a continuous composite tubing of a type used in oilfield operations, which reel assembly comprises a stand onto which a spool of continuous composite tubing is lowered...
8689873 Compositions and methods for improving the toughness of set cements  
The toughness of set cement may be enhanced by incorporating partially cured waterborne resins in the cement matrix. A hardening agent is added to the waterborne resin, and the mixture is allowed...
8689870 Use of methylhydroxyethyl cellulose as cement additive  
Methylhydroxyethyl cellulose may be used as an additive in cement slurries in the treatment of wells to prevent or reduce the occurrence of gas channeling. In addition to acting as a gas control...
8689881 Offshore unit and method of installing wellhead platform using the offshore unit  
An offshore unit includes a hull and/or a deck frame, a mat attached to at least one connecting leg or a spud can attached to each of at least one connecting leg or lower hull attached to at least...
8689888 Method and apparatus for positioning a wellhead member including an overpull indicator  
An outer wellhead member has a bore with a first profile portion and an annular recess. A tubular inner wellhead member with a centralizer/overpull ring is lowered into the outer wellhead member....
8689866 Automated systems and methods for make-up and break-out of tubulars  
An automated tubular handling system adapted to make-up or break-out tubulars that includes a rotary drive adapted to operatively grip a tubular to be connected to or disconnected from a tubular...
8689869 Method for providing thixotrophy to fluids downhole  
An encapsulated thixotropy agent may be added to aqueous well service fluids. Such fluids include drilling fluids, cement slurries and polymer pills. The well service fluid may be subjected to...
8689834 System and method for capping a high pressure line  
An expandable cap system includes a guide line having a pump at one end and an expandable cap device at the other end. The guide line acts to supply a material capable of creating a plug at one end...
8689877 Downhole tool  
A cleaning tool (1) for use in cleaning ferrous material from a wellbore has a magnetic cleaning element (14) mounted to a tool body (2) within a slot (5) using a releasable concealed interference...
8692668 Network based system for predicting landslides and providing early warnings  
A wireless node for monitoring landslide conditions has at least one tubular probe body deployed in a borehole in a landslide prone area and anchored to rock below soil, multiple sensors carried by...
8689876 Liquified petroleum gas fracturing system  
A fracturing system for a well, in which a stream of LPG, a mixture of propane and butane, is injected into the well at frac pressure. Proppant is supplied into the LPG stream, and carried by the...
8689894 Method and composition for zonal isolation of a well  
The invention provides a system comprising: a tubular containing a first surface comprising a coating made of a first swellable material coating said first surface, wherein said coating has a...
8685902 Proppant, proppant production method and use of proppant  
The invention relates to the area of oil and gas production (especially, to the production in which the propping technique is used for the stimulation of a well) and can be used in the development...
8684090 Slip connection with adjustable pre-tensioning  
A telescopic riser section device for a riser which is arranged to connect a wellhead to a surface vessel, the telescopic riser section being placed between the wellhead and the riser and being...
8684074 Work string mounted cleaning tool and assembly method  
Work string-mounted cleaning tool and a method of assembling such tools using a quick release for the cleaning element. Oblong pad element has a curved upper surface with slots to receive work...
8685903 Lost circulation compositions and associated methods  
An embodiment includes a method of servicing a well bore. The method may comprise introducing a lost circulation composition into a lost circulation zone, the lost circulation composition...
8684088 Shear laser module and method of retrofitting and use  
There is provided a high power shear laser module, which can be readily included in a blowout preventer stack. The shear laser module as the capability of delivering high power laser energy to a...
8684089 Method and system for circulating fluid in a subsea intervention stack  
The present invention relates to a fluid circulation system for circulating fluid in a subsea cavity, the cavity being filled with a first fluid and having first and second end ports. The system...
8685901 Wellbore servicing compositions and methods of using same  
A method of servicing a wellbore in contact with a subterranean formation, comprising placing into a wellbore a composition comprising a calcium aluminate cement and a polyvalent cation-containing...