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| Number | Title | Issue Date |
| 7424527 | System and method for transmitting pollution information over an integrated wireless network A pollution information message system provides a system and method for generating and transmitting pollution information messages. In one embodiment, the pollution information message system employs a transceiver network with a plurality transceivers coupled to mon... | 09/09/2008 |
| 7370016 | Music distribution systems Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's user station where selected music files are recorded. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only ... | 05/06/2008 |
| 7325327 | Method and apparatus for measuring angular or linear displacement An apparatus and method are disclosed for measuring the angular or linear displacement of an object. That displacement is transmitted to a movable conductive member, which, in response thereto, is moved to a position at which it electrically contacts one of a plural... | 02/05/2008 |
| 7301474 | Wireless communication system and method A wireless communication system for use in well, subsea, and oilfield-related environments employs one or more wireless network devices that offer short-range wireless communication between devices without the need for a central network which may have a device using... | 11/27/2007 |
| 7272504 | Real-time imaging while drilling Measurements made by a formation evaluation sensor downhole are processed to produce an image and a bitstream characterizing the image is transmitted uphole. The parameters used in the downhole processing are dynamically alterable. ... | 09/18/2007 |
| 7234517 | System and method for sensing load on a downhole tool A system and method for determining load on a downhole tool according to which one or more sensors are embedded in one or more components of the tool or in a material on one or more of the components. The sensors are adapted to sense load on the components. ... | 06/26/2007 |
| 7219749 | Single solenoid guide system Measurement of the location and direction of a drill head in a borehole extending beneath an obstacle such as a body of water utilizes a single AC solenoid at a known location but having an unknown orientation. The measurements are used to direct the path of the bor... | 05/22/2007 |
| 7209900 | Music distribution systems Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's user station where selected music files are recorded. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only ... | 04/24/2007 |
| 7171345 | System and method for simulating an input to a telematics system A system and method for simulating a component in a telematics system is described. The system and method includes a simulating a component and a establishing a communication link between the simulated component and a corresponding carlet in a telematics control uni... | 01/30/2007 |
| 7148812 | System for use in controlling a hydrocarbon production well A system for use in controlling a hydrocarbon production well has a: computer at a control location remote from a well tree of the well. A processor at the well tree applies control signals to and receives signals from devices of the well tree. The processor also re... | 12/12/2006 |
| 7107153 | Data compression methods and systems The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of autom... | 09/12/2006 |
| 7104331 | Optical position sensing for well control tools An apparatus and methods are disclosed for using optical sensors to determine the position of a movable flow control element in a well control tool. A housing has a movable element disposed within such that the element movement controls the flow through the tool. An... | 09/12/2006 |
| 7063146 | System and method for processing signals in a well A system and method for transferring data across a component in a well, according to which a first module receives the data and transmits the data, via electromagnetic waves, through the component, and a second module receives the transmitted data from the first mod... | 06/20/2006 |
| 7028409 | Method for computation of differential azimuth from spaced-apart gravity component measurements A method is provided for computing the differential azimuth between two sets of spaced-apart gravity component measurement devices in a borehole, employing multiple rotation angles. The method includes modeling relationships of axes as defined; forming equations rel... | 04/18/2006 |
| 7002484 | Supplemental referencing techniques in borehole surveying A method for surveying a borehole is disclosed which uses first and second gravity measurement devices disposed at corresponding first and second positions in the borehole and a supplemental reference measurement device disposed at the first position. Exemplary supp... | 02/21/2006 |
| 6988566 | Acoustic position measurement system for well bore formation An acoustic position measurement system and method includes an acoustic transmitter operable to transmit a sound wave into an underground well bore in a target formation. The sound wave is configured to reflect from a boundary formation proximate the target formatio... | 01/24/2006 |
| 6950034 | Method and apparatus for performing diagnostics on a downhole communication system A method for performing diagnostics on a wired drill pipe telemetry system of a downhole drilling system is provided. The method includes passing a signal through a plurality of drill pipe in the wired drill pipe (WDP) telemetry system, receiving the signal from the... | 09/27/2005 |
| 6932167 | Formation testing while drilling data compression A compression scheme for reducing the amount of data that must be transmitted uplink from a formation test while drilling apparatus. Periodic samples are taken within the formation test apparatus and prior to transmitting data uplink, the samples are analyzed to gen... | 08/23/2005 |
| 6927698 | Shuttle-in receiver for radio-imaging underground geologic structures A coal bed anomaly detection and imaging system comprises a synchronous transmitter and receiver that are separated by a geologic structure with embedded and hidden anomalies. The receiver is housed in a shuttle body that can be pumped into a borehole by water or ai... | 08/09/2005 |
| 6924745 | System and method for monitoring packer slippage A system and method for monitoring a device in a well, according to which a sensor associated with the device monitors any movement of the device in the well and outputs a corresponding signal. The signal is processed and transmitted to a remote location. ... | 08/02/2005 |
| 6845563 | Method and device for the measurement of the drift of a borchole A device and a method for the measurement of the angle of drift of a borehole that extends from the surface of the ground downwardly into the earth. The device comprises a generally hollow protective exterior casing, a microprocessor control; and, a sensor pack. At ... | 01/25/2005 |
| 6833795 | Underground utility detection system and method employing ground penetrating radar An apparatus and method are employed to detect underground objects for use with a horizontal directional drilling (HDD) machine. A drill pipe is configured to cooperate with the HDD machine to produce a horizontal bore. A transmit apparatus is provided with the dril... | 12/21/2004 |
| 6661738 | Orientation and calibration of acoustic vector sensor arrays The specification describes a system and related method for determining the orientation of acoustic vector sensors installed in well bores that utilizes acoustic signals of known orientation in the casing to determine the orientation of the acoustic vecto... | 12/09/2003 |
| 6533502 | Wireless apparatus and method for analysis of piles A system for the determination of pile parameters includes at least one structure for measuring pile data. The structure for measuring pile data is disposed within a measurement range from a pile. A wireless transmitter is communicably connected to the st... | 03/18/2003 |
| 6480119 | Surveying a subterranean borehole using accelerometers A method and apparatus for surveying a subterranean borehole is disclosed which uses two sets of accelerometers joined by a joining structure which prevents relative rotation between the two sets, the whole apparatus being arranged to permit movement alon... | 11/12/2002 |
| 6434435 | Application of adaptive object-oriented optimization software to an automatic optimization oilfield hydrocarbon production management system The systems and the methods relating to process control optimizations systems useful to manage oilfield hydrocarbon production. The systems and the methods utilize intelligent software objects which exhibit automatic adaptive optimization behavior. The sy... | 08/13/2002 |
| 6301551 | Remote pile driving analyzer A pile driving analyzer (PDA) which obtains, processes and stores pile driving data. The PDA is operable as an independent self-contained unit, or may be used in conjunction with a remote computer system. Position data indicative of the position of a pile... | 10/09/2001 |
| 6271767 | Inductively coupled underwater modem The present invention provides a subsurface instrument and a system for the collection and transmission of deep ocean data utilizing standard buoy mooring lines. The system includes a moored surface buoy and a submerged data collection instrument both ind... | 08/07/2001 |
| 6229453 | Method to transmit downhole video up standard wireline cable using digital data compression techniques Disclosed is a downhole video system that is suitable for use with a standard wireline transmission line, without the need for coaxial or fiber optic cable. A downhole video camera transmits a digitized video signal that may be multiplexed with orientatio... | 05/08/2001 |
| 6050349 | Hydraulic system for mud pulse generation A hydraulic system for supplying hydraulic fluid for operating a mud pulse generator includes an accumulator that has a reservoir. The accumulator is arranged to maintain the fluid pressure in the reservoir. The system also has a pressure operated, one wa... | 04/18/2000 |
| 5585790 | Method and apparatus for determining alignment of borehole tools A method of determining alignment of first and second parts of a borehole tool system in which three mutually orthogonal signals are transmitted by a transmitter in the first tool part and each signal is received and measured in three mutually orthogonal ... | 12/17/1996 |
| 5300929 | Method for delineating an anomalous geologic structure A method of using oriented seismic sensors to delineate the surface of a geologic unit having an anomalous velocity, such as salt dome is disclosed. Seismic sensors having three orthogonal axes of sensitivity are sealed in a housing and are attached to th... | 04/05/1994 |
| 5258755 | Two-source magnetic field guidance system A magnetic field guidance system for guiding a movable carrier such as a drill assembly with respect to a fixed target includes a pair of magnetic field sources at one location, such as the carrier, and a highly sensitive magnetic field detector at the ot... | 11/02/1993 |
| 5210533 | Apparatus and method for positioning a tool in a deviated section of a borehole Apparatus and method for positioning a tool, such as a surveying instrument, in the deviated section of a borehole includes a flexible rod and a positioning assembly. The flexible rod extends from the vertical section into the deviated section of the bore... | 05/11/1993 |
| 5204673 | Borehole televiewer system depth encoding and decoding method A method and an apparatus for recording the depth of a well logging apparatus is provided. The method and apparatus include the direct acquisition of broad depth information from the logging system conversion of the broad depth information to an acceptabl... | 04/20/1993 |
| 5194859 | Apparatus and method for positioning a tool in a deviated section of a borehole Apparatus and method for positioning a tool, such as a surveying instrument, in the deviated section of a borehole includes a flexible rod and a positioning assembly. The flexible rod extends from the vertical section into the deviated section of the bore... | 03/16/1993 |
| 5159578 | Apparatus for rotating a transducer assembly of a borehole logging tool in a deviated borehole A borehole logging tool having a dipole acoustic energy source and at least one spaced-apart dipole acoustic energy receiver is lowered into a deviated borehole. A motor rotates the source and receiver about the axis of the borehole tool. A first signal i... | 10/27/1992 |
| 4930595 | Method and apparatus for determining the profile of a subterranean passage A method and apparatus for remotely determining the profile of an inaccessible subterranean passage for example in a mine. An instrument pod is moved through the passage in steps. At each step, a rangefinder scans the wall of the passage and provides to a... | 06/05/1990 |
| 4905774 | Process and device for guiding a drilling tool through geological formations A process and device making possible the guidance of the drilling tool through geological formations including an analytical device for directional geological analysis that carries out measurements as the drilling advances for guiding the drilling tool th... | 03/06/1990 |
| 4800981 | Stabilized reference geophone system for use in downhole environment For seismic exploration, a method and apparatus are set forth wherein geophones, preferably arranged in XYZ relationship to one another fixedly within a hermetically sealed housing, are located in a deviated well. The position of the housing with respect ... | 01/31/1989 |
