Patent application number | Description | Published |
20100170673 | SYSTEM AND METHOD FOR DOWNHOLE BLOWOUT PREVENTION - A system for monitoring and controlling fluid flow through a borehole in an earth formation is disclosed. The system includes: a downhole tool configured to be movable within the borehole; and a plurality of interchangeable modules disposed within the downhole tool, the plurality of interchangeable modules including at least a sensor module for detecting a property change in the borehole and a packer module for sealing a portion of the borehole in response to the property change. Each of the plurality of interchangeable modules includes a connection configuration, the connection configuration of one of the modules being removably engageable with at least another of the modules. A method of monitoring and controlling fluid flow through a borehole in an earth formation is also disclosed. | 07-08-2010 |
20120217068 | Lateral Well Drilling Apparatus and Method - In one aspect, a drilling apparatus is provided, where the drilling apparatus includes a fluid pump disposed in a main wellbore, a lateral well in fluid communication with the fluid pump and a drilling assembly disposed in the lateral well, wherein the drilling assembly is configured to receive a fluid from the fluid pump to power the drilling assembly and to transport cuttings from the drilling assembly to the main wellbore. The drilling apparatus further includes a sealing mechanism disposed in the main wellbore, the sealing mechanism being configured to direct the cuttings in the fluid downhole of the sealing mechanism. | 08-30-2012 |
20130000981 | CONTROL OF DOWNHOLE SAFETY DEVICES - A drilling system for drilling a borehole includes a drill string including a bottom hole assembly and a telemetry system coupled together and a communication device coupled to the drillstring configured to transmit sensor data to and receive control data from a control unit located at a surface location through the telemetry system. The system also includes a sensor coupled to the drillstring, the sensor providing the sensor data to the communication device and a downhole safety device coupled to the drill string and in operable communication with the communication device, the downhole safety device configured to actuate after receiving an activation signal initiated by the control unit. | 01-03-2013 |
20130020132 | Downhole Motors with a Lubricating Unit for Lubricating the Stator and Rotor - In aspects, the disclosure provides a drilling motor that includes a lubricating unit that selectively supplies a lubricant to the drilling fluid before the drilling fluid passes through the drilling motor so as to lubricate the stator and/or the rotor to reduce friction between the stator and the rotor and to reduce wear of the motor. | 01-24-2013 |
20130025940 | ACTIVE EQUIVALENT CIRCULATING DENSITY CONTROL WITH REAL-TIME DATA CONNECTION - An apparatus uses well devices, both downhole and at the surface, to control at least one condition in a wellbore. The downhole equipment includes flow restriction devices that modulate fluid flow along a wellbore annulus, flow bypass devices that selectively bypass fluid flow from wellbore tubular bore to the wellbore annulus, and downhole sensors that generate information relating to a selected parameter of interest. The surface equipment includes a pump that circulates a drilling fluid in the wellbore. Controllers, which may be downhole and/or at the surface, use sensor information to generate advice parameters or signals that may be used to control the flow restriction devices, the flow bypass devices, and/or the fluid circulation pump. | 01-31-2013 |
20130052067 | Downhole Motors and Pumps with Improved Stators and Methods of Making and Using Same - In one aspect, the disclosure provides an apparatus for use downhole that in one configuration includes a stator including a housing having an inner contour and a liner lining the inner contour of the stator housing, wherein thickness of the liner is non-equidistant around the inner contour of the housing. | 02-28-2013 |
20130064702 | Downhole Motors and Pumps with Asymmetric Lobes - In an aspect, the disclosure provides an apparatus for use downhole. In one aspect the apparatus includes a rotor with lobes disposed in stator with lobes, wherein at least one of the contours of the rotor lobe and the contour of the stator lobe is asymmetric. | 03-14-2013 |
20130133950 | Apparatus and Methods Utilizing Progressive Cavity Motors and Pumps with Rotors and/or Stators with Hybrid Liners - An apparatus for use downhole is disclosed that in one embodiment may include a rotor having an outer lobed surface disposed in a stator having an inner lobed surface, wherein the inner lobed-surface or the outer-lobed surface includes a sealing material on a first section thereof and a metallic surface on a second section thereof. | 05-30-2013 |
20130229667 | Apparatus and Method for Determining Inner Profiles of Hollow Devices - In one aspect, an apparatus for determining an internal profile of a measured device is provided, which method in one embodiment may include: a housing having a first axis, a measuring device configured to emit a light beam along a second axis offset from the first axis; a deflection device configured to direct the emitted light beam to an inner surface of the measured device; and a driver configured to rotate the measuring device about the first axis. | 09-05-2013 |
20150093189 | MULTI-START THREAD CONNECTION FOR DOWNHOLE TOOLS - An apparatus for transferring rotary power to a consumer in a wellbore includes a rotary power source positioned along a conveyance device and a drive train connected to the rotary power source. The drive train transfers torque from the rotary power source to a consumer. The drive train includes at least two torque transmitting members connected by a multi-start thread connection. | 04-02-2015 |
Patent application number | Description | Published |
20080282755 | LOCK APPARATUS AND METHOD - A codeable lock, operable by an authorized key, includes a housing defining a longitudinal axis, a lock cylinder positioned within the housing and selectively rotatable relative to the housing about the longitudinal axis, and a sidebar moveable between a locked position, in which at least a portion of the sidebar is engaged with the lock cylinder and the housing to prevent rotation of the lock cylinder relative to the housing, and an unlocked position, in which the sidebar is disengaged from at least one of the housing and the lock cylinder. The codeable lock also includes a codebar positioned within the lock cylinder. The codebar is moveable from an uncoded state to a coded state upon insertion of the authorized key into the lock cylinder and by securing the codebar to the sidebar. The codeable lock further includes a tumbler positioned within the lock cylinder and engaged with the codebar. | 11-20-2008 |
20100050718 | LOCK APPARATUS AND METHOD - Lock assembly and method of coding and recoding locks. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of codebars, and a sidebar. Some embodiments of a lock include a housing, a lock cylinder, a plurality of tumblers, a plurality of code blocks, a sidebar, and a codebar. | 03-04-2010 |
Patent application number | Description | Published |
20120112674 | CONTROL OF A TRACTION POWER INVERTER MODULE IN A VEHICLE HAVING AN ELECTRIC TRACTION MOTOR - A method for controlling a traction power inverter module (TPIM) in a vehicle includes determining a commanded output torque of the motor using a controller. The method further includes controlling the TPIM and motor using a discontinuous pulse width modulated (DPWM) signal when the commanded output torque is less than a calibrated torque threshold. A continuous pulse width modulated (CPWM) signal is used when the commanded output torque is greater than the threshold. The method may include determining a direction of a change in the commanded output torque, and controlling the TPIM, via the controller, using the DPWM signal only when the commanded output torque drops below a predetermined hysteresis level. A vehicle includes a traction motor producing a motor torque for propelling the vehicle, an ESS, a TPIM, and a controller configured as noted above. | 05-10-2012 |
20130165240 | TORSIONAL DAMPER ASSEMBLY - A torsional damper assembly for transmitting torque between a prime mover of a powertrain and an input of a transmission is provided. The torsional damper assembly includes an input mass, an output mass, a damping element, a bypass clutch, and a bypass clutch release lever. The damping element is interposed between the input mass and the output mass, and it is operable to translate torque between the masses and to dampen oscillation generated by the prime mover. The bypass clutch is configured to couple the input and output masses together for common rotation when engaged. The bypass clutch release lever is pivotally rotatable with respect to the output mass, and it includes a biasing portion and a weighted end. When rotated, the biasing portion is operable to bias the bypass clutch away from the input mass to disengage the bypass clutch. | 06-27-2013 |
20130225363 | METHOD TO REDUCE POWERTRAIN NOISE AND VIBRATION DURING ENGINE START IN HYBRID VEHICLE - A method of controlling a powertrain system of a hybrid vehicle includes detecting a request to start an engine, incrementally applying torque to the powertrain system, and biasing the torque against a static member of the powertrain system, such as a parking pawl of a transmission when the transmission is disposed in a parking position, to remove lash from the powertrain system prior to starting the engine. | 08-29-2013 |
20130314011 | METHODS, SYSTEMS AND APPARATUS FOR COMPUTING A VOLTAGE ADVANCE USED IN CONTROLLING OPERATION OF AN ELECTRIC MACHINE - Embodiments of the present disclosure relate to methods, systems and apparatus for computing a voltage advance used in controlling operation of an electric machine. | 11-28-2013 |
20130317630 | METHODS, SYSTEMS AND APPARATUS FOR IMPLEMENTING DITHERING IN MOTOR DRIVE SYSTEM FOR CONTROLLING OPERATION OF AN ELECTRIC MACHINE - Embodiments of the present disclosure relate to methods, systems and apparatus for implementing dithering in motor drive system for controlling operation of a multi-phase electric machine. | 11-28-2013 |
20140265975 | INVERTER CONTROL METHOD AND VEHICLE HAVING SAME - A method of controlling a power inverter coupled to an electric motor in a vehicle powertrain having an engine is provided. The method includes generating a voltage waveform signal and a switching frequency signal for the inverter via a controller. At least one of the voltage waveform signal and the switching frequency signal is at least partially based on at least one commanded engine operating parameter. For example, the engine on/off state, engine torque, and engine speed can be considered. A vehicle having a controller configured to implement the method is also provided. | 09-18-2014 |
20160097420 | DRIVESHAFT WITH TWO-STAGE STIFFNESS - A two-stage stiffness driveshaft includes a hollow cylinder defined by a longitudinal axis, a first end, a distal second end, and a hollow cylinder stiffness. The driveshaft also includes an inner shaft extending through the hollow cylinder along the longitudinal axis and defined by a first end, a distal second end, and an inner shaft stiffness. The first end of the inner shaft is engaged with the first end of the hollow cylinder via a rotational clearance fit. The second end of the inner shaft is rotationally fixed to the second end of the hollow cylinder such that the first end of the inner shaft can twist to a predetermined angle with respect to the second end of the inner shaft. The inner shaft stiffness defines a first-stage stiffness of the driveshaft, and the inner shaft stiffness and the hollow cylinder stiffness together define a second-stage stiffness of the driveshaft. | 04-07-2016 |