Abstract: Disclosed is a drilling system and a method for drilling a well. The drilling system includes a coilable drill string; a first reel for storing the coilable drill string; a drive means for driving the coilable drill string into the well from the first reel and out of the well to the first reel; and a deflection means for directing the coilable drill string between the first reel and into the well centre. The drilling system further includes a top drive. The coilable drill string is provided with: a first connection at a first end for connecting the coilable drill string to a bottom-hole-assembly and a second connection at a second end for connecting the coilable drill string to the top drive.

Abstract: Disclosed is a drilling system for rock drilling with a drill string, wherein the drill string includes at least one bendable drill pipe. The drilling system further includes at least two block and tackle systems for driving an end of the drill string in a first direction; and at least two conveyor devices adapted to guide and bend the drill string between the first direction and a second direction, so as to convert a motion of the drill string between the first direction and the second direction.

Abstract: Disclosed is a jack-up rig that includes a cantilever platform mounted on a buoyant hull. At least two drilling assemblies are provided on the cantilever platform, each of the drilling assemblies being movable relative to the cantilever platform and being moveable independently from the other drilling assembly or assemblies. Each of the drilling assemblies is also movable within a plane that is parallel to the cantilever platform in both X-direction as well as Y-direction which is orthogonal to the X-direction.

Abstract: A method for treating pipe string sections being in a set-back and being arranged in a vertical position comprises arranging a remote-controllable manipulator at least at one of the threaded portions of the pipe string sections. In addition, the method comprises providing the remote-controllable manipulator with a tool. The tool is arranged to at least clean or lubricate said threaded portion. Further, the method comprises moving the tool to a threaded portion which is to be treated and at least clean or lubricate the threaded portion.

Abstract: A method for treating pipe string sections being in a set-back and being arranged in a vertical position comprises arranging a remote-controllable manipulator at least at one of the threaded portions of the pipe string sections. In addition, the method comprises providing the remote-controllable manipulator with a tool. The tool is arranged to at least clean or lubricate said threaded portion. Further, the method comprises moving the tool to a threaded portion which is to be treated and at least clean or lubricate the threaded portion.

Abstract: An apparatus for rotating a tubular, the apparatus, in at least certain aspects including having a plurality of tubular-contacting rollers with one or more pairs of interlaced rollers. This Abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: The present invention provides for systems and methods for dimming a LED matrix functioning as a backlight to an avionics display. A system according to an embodiment of the present invention comprises a processor for receiving inputs of ambient lighting and temperature, as well as light generated by the LED matrix. The processor provides modulated pulse wave signals (square waves) to two control circuits for controlling the LED matrix in two modes. At low dimming levels, the processor modulates the duty cycle of a first square wave for affecting the light level and maintains a minimal duty cycle of a second square wave. Once the highest light level is obtained by increasing the duty cycle of the first square wave, the processor then modulates a second square wave by increasing its duty cycle. The duty cycle of the second square wave is modified by a circuit to produce a voltage level which is provided as an input to control light level of the LED matrix.

Abstract: The present invention provides for systems and methods for dimming a LED matrix functioning as a backlight to an avionics display. A system according to an embodiment of the present invention comprises a processor for receiving inputs of ambient lighting and temperature, as well as light generated by the LED matrix. The processor provides modulated pulse wave signals (square waves) to two control circuits for controlling the LED matrix in two modes. At low dimming levels, the processor modulates the duty cycle of a first square wave for affecting the light level and maintains a minimal duty cycle of a second square wave. Once the highest light level is obtained by increasing the duty cycle of the first square wave, the processor then modulates a second square wave by increasing its duty cycle. The duty cycle of the second square wave is modified by a circuit to produce a voltage level which is provided as an input to control light level of the LED matrix.

Abstract: A magnetometer and method for measuring magnetic field strength particularly adapted for use in an electronic flux gate compass. A core of magnetic material in the shape of a toroid is coupled to a drive coil and to two sense coils oriented along orthogonal axes. A current limited, current source coupled to the drive coil periodically saturates the core, drives the core out of saturation at an intermediate current level, and saturates the core again. Each sense coil is coupled to a sense circuit which measures the current in the sense coil induced by the periodically changing flux density in the coil resulting from an external magnetic field coupled to the sense coil, produces a dc feedback signal to cancel out the external magnetic field, and provides the dc signal as an output representative of the external magnetic field strength along the axis of the sense coil. The dc signal is produced by synchronously detecting the amplified ac current in the sense coil.