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 |
20100200295 | Downhole Apparatus with a Wireless Data Communication Device Between Rotating and Non-Rotating Members - A drilling assembly is disclosed that in one embodiment includes a bi-directional wireless data transfer device between a rotating and a non-rotating member of the drilling assembly. Power may be supplied to the rotating member via any suitable method, including an inductive device and direct electrical connections. | 08-12-2010 |
20100322030 | Seismic Measurements While Drilling - A downhole tool starts recording seismic energy. During the recording time, a surface seismic source is activated a specified number of times with a nominally defined separation between successive. The downhole sensor receives seismic waves resulting from the activation, but the time of the shooting sequence is not known downhole. The recorded data stream is processed and converted in real-time into seismic traces. A predefined number of traces are stacked and the quality of this sliding stack is used to detect time of the shooting sequence. The method could be used to detect one or several shooting sequences during a measurement window. | 12-23-2010 |
20110120775 | Drilling Assembly with a Steering Unit - An apparatus for use in a wellbore is provided, which in one embodiment includes a drilling motor and a steering unit placed about a shaft between a lower section of a stator in the motor and a drill bit. The steering unit includes a substantially non-rotating member and a force application member on the non-rotating member configured to radially extend the force application member from the non-rotating member. In another embodiment, the steering unit may include, rotating member configured to rotate a drill bit, a steering member configured to orient the drill bit along a selected direction, a first steering device configured to orient the steering member in the wellbore, and a second steering device configured to maintain orientation of the steering member when drilling the wellbore. | 05-26-2011 |
20110147086 | DOWNHOLE TOOLS WITH ELECTRO-MECHANICAL AND ELECTRO-HYDRAULIC DRIVES - An apparatus to be conveyed into a wellbore is provided, wherein the apparatus includes a housing configured to be conveyed downhole and a drive member located in the housing. The apparatus further includes a drive unit configured to actuate movement of the drive member by selectively coupling to the drive member, wherein the coupling of the device to the drive member is controlled by applying an energy to a selected material in the device. | 06-23-2011 |
20120018225 | TILTED BIT ROTARY STEERABLE DRILLING SYSTEM - A wellbore is formed by using an apparatus that may include a shaft having an end portion, a drill bit body tiltable about the end portion, and at least one actuator configured to apply a tilting force to the drill bit body. | 01-26-2012 |
20120031677 | DIRECTIONAL WELLBORE CONTROL BY PILOT HOLE GUIDANCE - A directional drilling apparatus include a first cutter that substantially cuts a wellbore bottom along a first axis and a second cutter that cuts the wellbore bottom along a second axis different from the first axis. The second cutter may extend an adjustable amount out of the first cutter. In another embodiment, a pilot string may connect the second cutter to the first cutter. | 02-09-2012 |
20130092441 | Steering Head with Integrated Drilling Dynamics Control - A method, apparatus and computer-readable medium for reducing a vibration of a drill string in a borehole. A sensor of the drill string obtains one or more measurements of a parameter of the vibration. A processor determines at least one force for controlling the measured vibration from the measured parameter. At least one actuator applies the determined at least one force against the borehole wall to control the vibration of the drill string. | 04-18-2013 |
20130213129 | MEASUREMENT OF DOWNHOLE COMPONENT STRESS AND SURFACE CONDITIONS - An apparatus for measuring strain on a downhole component includes: at least one strain sensitive device disposed proximate to a surface of a component of a drilling assembly or disposed within a material forming the component; and a processor in operable communication with the at least one strain sensitive device, the processor configured to detect changes in the at least one strain sensitive device and detect at least one of erosion, crack formation and crack propagation in the component surface. An apparatus for measuring strain on a downhole component includes: at least one strain gauge deposited on a surface of a drive shaft or disposed within a material forming the drive shaft; and a processor in operable communication with the at least one strain gauge, the processor configured to detect changes in the at least one strain gauge and detect conditions affecting operation of the drive shaft. | 08-22-2013 |
Patent application number | Description | Published |
20120247715 | Heat Exchanger Arrangement - A heat exchanger arrangement is made available for heating an area of a vehicle which is to be heated, having: a first heat exchanger element for transmitting waste heat from at least one vehicle electrical component to be cooled to air, and a second heat exchanger element for transmitting heat from at least one vehicle heating device to air. The first heat exchanger element and the second heat exchanger element are arranged in such a way that air (L) to be heated is successively applied to them. | 10-04-2012 |
20120247716 | Motor Vehicle Cooling System - The invention relates to a motor vehicle cooling system, comprising a first cooling circuit, in which a coolant can be circulated, at least one electrical component of the vehicle, which is integrated in the first cooling circuit and is to be cooled, wherein the electrical component can be cooled by means of a coolant that can be circulated in the first cooling circuit, a refrigeration system, which is designed to provide cooling capacity, and a refrigerant-coolant heat exchanger, which is designed to transfer the cooling capacity provided by the refrigeration system to the coolant. A first coolant-air heat exchanger for cooling air for a vehicle interior is arranged in the first cooling circuit. | 10-04-2012 |
Patent application number | Description | Published |
20110197642 | BIODEGRADABLE PLASTIC AND USE THEREOF - The invention relates to a biodegradable plastic having increased biodegradation speed. Said plastic comprises a) finely distributed particle of a biodegradable, water-soluble, organic component, and b) finely distributed particles of a water-soluble, inorganic component promoting the growth of microorganisms and comprising N, P, and/or S. Said plastic is particularly based on cellulose esters such as cellulose acetate. Preferable components A are water-soluble saccharides and/or water-soluble organic acids. Said particularly advantageous biodegradable plastic is particularly available in the form of fibers, films, injection molded items, granulate beads, and containers. Controlled-release biocides and/or fertilizers can also be included in the molded part, wherein the molded part is degraded faster in the environment as said ingredients are released. The accelerated biodegradation is based on a synergistic interaction of the components indicated. | 08-18-2011 |
20130199742 | PHOTODEGRADABLE PAPER AND ITS USE - A photodegradable paper including cellulose fibers and, if applicable, fillers, additives and/or other kind of fibers is described. Also described, is a paper particularly in the field of packaging, tissue papers or cigarettes. | 08-08-2013 |