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| Number | Title | Issue Date |
| 8185316 | Time-space varying spectra for seismic processing A method and visualization apparatus for spectral analysis of time-and-space varying signals enables high resolution investigation of 3D seismic data for the exploration of oil and gas. The method extrapolates multi-resolution short windows into an average long wind... | 05/22/2012 |
| 8164340 | Method for determining electromagnetic survey sensor orientation A method for determining orientation of an electromagnetic survey sensor includes deploying the sensor at a selected position on the bottom of a body of water. An electromagnetic field is generated at a selected position in the body of water. A portion of the electr... | 04/24/2012 |
| 8154295 | Method for determining electric field response to an electromagnetic field induced in the Earth's subsurface A method for determining a component of electric field response to a time varying electromagnetic field induced in the Earth's subsurface involves measuring magnetic field gradient in at least two orthogonal directions in response to the induced electromagnetic fiel... | 04/10/2012 |
| 8150666 | Methods and systems for combining models of goods and services The present disclosure describes methods and systems for combining Models of goods and services. At least some embodiments include a method that includes retrieving a first Model representing an object, a User controlling access to the first Model; retrieving a seco... | 04/03/2012 |
| 8148990 | Marine electromagnetic acquisition apparatus with foldable sensor arm assembly A marine electromagnetic acquisition apparatus includes a sensor module having at least one sensor associated therewith. A sensor arm assembly is coupled to the sensor module. The sensor arm assembly has at least one sensor arm and at least one sensor disposed along... | 04/03/2012 |
| 8146306 | Anchor for post tension concrete reinforcing systems An anchor for a post tension reinforcement includes an anchor base having at least one wedge receiving bore therein and reinforcing ribs extending from an exterior of the receiving bore. A longitudinal length of the wedge receiving bore, a position of a midpoint of ... | 04/03/2012 |
| 8125850 | Method for identifying gas leaks using a stationary seabed placed steered beamformed acoustic antenna with active narrow beam transmitter interrogation capability A method for identifying position of acoustic source proximate sediments below the bottom of a body of water includes deploying a plurality of arrays of acoustic sensors on the bottom of the body of water. Each array includes a plurality of lines of acoustic sensors... | 02/28/2012 |
| 8077545 | Method for detecting gas influx in wellbores and its application to identifying gas bearing formations A method for identifying gas in a wellbore includes imparting acoustic energy into the wellbore at a first selected position and detecting the acoustic energy at a second position in the wellbore spaced apart from the first position. Acoustic velocity of fluid in th... | 12/13/2011 |
| 8077091 | System and method for determining a position of a mobile device within a surveillance volume in the presence of multipath interference A system of determining a position of a mobile device within a surveillance volume includes a phase difference array comprising a spatially diverse array of N sensors for detecting RF signals from the mobile device and acquiring phase difference data from the RF sig... | 12/13/2011 |
| 8074742 | Apparatus and method for cutting a wellbore An apparatus for cutting a wellbore includes a motor with a stator and a rotor. The rotor includes an output shaft connected to a cutting structure to drive the cutting structure in use. The stator and rotor are spaced radially outwardly of the axis of the rotor suc... | 12/13/2011 |
| 8072839 | Hand-held acoustic camera An acoustic camera includes an acoustic transmitter disposed at one longitudinal end of a housing. The transmitter has a convex radiating surface. A diameter of the transmitter is about four times a wavelength of acoustic energy emitted by the transmitter. A plurali... | 12/06/2011 |
| 8064288 | Method for passive seismic emission tomography using adaptive velocity filter A method for seismic event mapping includes adaptively velocity filtering seismic signals recorded at selected positions. The velocity filtered signals are transformed into a domain of possible spatial positions of a source of seismic events. An origin in spatial po... | 11/22/2011 |
| 8061723 | Vertically extendable equipment storage bucket apparatus and method A vertically adjustable baseball equipment apparatus includes a blow moldable support platform that forms a container indexing recess for capture of an equipment storage container. The container is vertically adjustable. A vertically elongated and telescoping extens... | 11/22/2011 |
| 8026723 | Multi-component marine electromagnetic signal acquisition method A method for determining a component of electric field response of the Earth's subsurface to a time-varying electromagnetic field induced in the Earth's subsurface is provided. The method includes measuring electric field response along a nonlinear pattern on at lea... | 09/27/2011 |
| 8014791 | Method and system for determining position of a wireless electronic device within a volume A method for determining a position of a wireless electronic device within a volume includes detecting a signal transmitted by the wireless device during two-way communication to and from a first known position within the volume. The method further includes detectin... | 09/06/2011 |
| 8012247 | Gas treatment units A gas treatment unit includes an absorber, a liquid-jet ejector, a gas-liquid separator, a regenerator and a pump. A liquid outlet of the regenerator is connected to an inlet of the pump. An outlet of the pump is connected to a liquid inlet of the absorber. A liquid... | 09/06/2011 |
| 7986587 | Method for imaging the earth's subsurface using passive seismic sensing A method of imaging the Earth's subsurface using passive seismic emissions includes detecting seismic signals originating from within the Earth's subsurface over a selected time period using an array of seismic sensors deployed proximate the Earth's surface. Hypocen... | 07/26/2011 |
| 7984770 | Method for determining formation integrity and optimum drilling parameters during drilling A method for determining formation integrity during drilling of a wellbore includes determining an annulus fluid pressure in a wellbore during drilling thereof. The annulus pressure is adjusted by a predetermined amount. Flow rate of drilling fluid into the wellbore... | 07/26/2011 |
| 7978563 | Method for passive seismic emission tomography including polarization correction for source mechanism A method for seismic event mapping includes selecting a plurality of subvolumes representing possible locations of origin of a seismic event in the Earth's subsurface. For each subvolume a plurality of possible directions of motion of subsurface formations is select... | 07/12/2011 |
| 7957905 | Data processing method for determining acoustic velocities from acoustic well logging instruments A method for estimating interval travel time of an Earth formation using an acoustic well logging instrument having a plurality of spaced apart acoustic transmitters and acoustic receivers includes measuring travel time between a transmitter and a receiver for subst... | 06/07/2011 |
| 7944774 | Method for determining adequacy of seismic data coverage of a subsurface area being surveyed and its application to selecting sensor array geometry A method for marine seismic surveying includes towing seismic sensors in a plurality of streamers in the water, actuating a seismic energy source in the water at selected times and detecting seismic signals at the sensors resulting from the actuation of the source. ... | 05/17/2011 |
| 7938190 | Anchored riserless mud return systems A riserless mud recovery system including a mud return line secured by an anchor is disclosed. Some system embodiments for drilling a well bore in an offshore location having a water surface and a subsea formation include an offshore structure positioned on a platfo... | 05/10/2011 |
| 7926614 | Particle motion sensor mounting for marine seismic sensor streamers A marine seismic streamer includes a jacket substantially covering an exterior of the streamer. At least one strength member is disposed along the length of the jacket. A sensor mount is coupled to the strength member. At least one particle motion sensor is suspende... | 04/19/2011 |
| 7896789 | Push up exercise device with adjustable rotation resistance A pushup exercise device includes a handle affixed to a handle base. The device includes a base plate. The handle base is rotatably supported on the base plate. A brake is disposed in the handle base and surrounds an extension on the base plate. The brake includes a... | 03/01/2011 |
| 7886845 | Method and system for monitoring auxiliary operations on mobile drilling units and their application to improving drilling unit efficiency A system for monitoring auxiliary operations on a drilling unit includes at least one sensor configured to measure a parameter related to a start time and a stop time of at least one auxiliary operation on the drilling unit. The system includes a data acquisition de... | 02/15/2011 |
| 7881159 | Seismic streamers which attentuate longitudinally traveling waves A seismic streamer includes at least one array of sensors each disposed in a sensor holder at longitudinally spaced apart locations. A longitudinal orientation of at least one sensor or at least one sensor holder is different from that of the other sensors along the... | 02/01/2011 |
| 7881158 | Seismic vibrator having multiple resonant frequencies in the seismic frequency band using multiple spring and mass arrangements to reduce required reactive mass A seismic vibrator includes a transducer, a reactive mass, a base plate to couple motion of the reactive mass to subsurface formations and a linkage system configured to couple motion of the transducer to the reactive mass and the base plate. The linkage system coop... | 02/01/2011 |
| 7881153 | Steerable paravane system for towed seismic streamer arrays A paravane for a seismic acquisition system includes a float, a frame suspended from the float, deflectors affixed to the frame, and means for coupling a tow rope to a lead-in functionally extending between a forward end and an aft end of the frame. The paravane inc... | 02/01/2011 |
| 7872477 | Multi-component marine electromagnetic signal acquisition cable and system A marine electromagnetic sensor cable includes a plurality of sensor modules disposed at spaced apart locations along a cable. Each module includes at least one pair of electrodes associated with the module. The electrodes are arranged to measure electric field in a... | 01/18/2011 |
| 7869303 | Method for noise suppression in seismic signals using spatial transforms A method for identifying a position of a source of noise in a marine seismic record includes defining, for at least one shot record, a set of possible noise source positions. A difference between travel time of noise from each possible noise source position to each ... | 01/11/2011 |
| 7849927 | Running bore-lining tubulars A method of running a tubular string into a wellbore comprises running a bore-lining tubular string into a wellbore substantially without rotation, while rotating a cutting structure at a distal leading end of the tubular string. Other methods provide for rotation o... | 12/14/2010 |
| 7834632 | Receiver streamer system and method for marine electromagnetic surveying A receiver streamer system for marine electromagnetic surveying includes a first streamer, and a second streamer disposed substantially parallel to and spaced apart from the first streamer. A first pair of electrodes is associated with the first streamer and a secon... | 11/16/2010 |
| 7830748 | Method for acoustic imaging of the earth's subsurface using a fixed position sensor array and beam steering A method for seismic surveying includes disposing a plurality of seismic sensors in a selected pattern above an area of the Earth's subsurface to be evaluated. A seismic energy source is repeatedly actuated proximate the seismic sensors. Signals generated by the sei... | 11/09/2010 |
| 7822515 | Ocean bottom seismic sensor cable system including torque-relieving swivel An ocean bottom cable system includes a sensor cable configured to be extended from a vessel to the bottom of the body of water. The sensor cable includes a plurality of seismic sensor units at spaced apart locations. A lead in cable is coupled at a to at least one ... | 10/26/2010 |
| 7800976 | Single foil lateral force and depth control device for marine seismic sensor array A lateral force and depth control device for a marine streamer includes a housing configured to be coupled within the streamer. A control surface is mounted to the housing such that a rotary orientation and an angle of attack of the control surface with respect to t... | 09/21/2010 |
| 7800374 | Multi-component marine electromagnetic signal acquisition cable and system A marine electromagnetic sensor cable includes a plurality of sensor modules disposed at spaced apart locations along a cable. Each module includes at least one pair of electrodes associated therewith. The electrodes are arranged to measure electric field in a direc... | 09/21/2010 |
| 7796471 | Ultrasonic in-building positioning system based on phase difference array with ranging A method for determining position of a mobile electronic device includes emitting an acoustic pulse from the position of the mobile electronic device. The acoustic pulse is detected at a known position at three spaced apart locations along each of at least two lines... | 09/14/2010 |
| 7795873 | Method for attenuating air wave response in marine electromagnetic surveying A method for measuring the electromagnetic response of formations below the bottom of a body of water includes positioning at least one electromagnetic transmitter and at least one electromagnetic receiver in the body of water each at a selected depth below the wate... | 09/14/2010 |
| 7765752 | Anchor system with substantially longitudinally equal wedge compression An anchor system for a tendon includes a load transfer device having at least one wedge receiving bore therein. The wedge receiving bore has a tapered interior surface. The anchor system also includes a wedge configured to be affixed to an exterior surface of a tend... | 08/03/2010 |
| 7762029 | Anchor for post tension concrete reinforcing systems An anchor for a post tension reinforcement is disclosed. The anchor includes an anchor base having at least one wedge receiving bore therein. The wedge receiving bore is tapered in diameter at a single selected taper angle. An axial length of the wedge receiving bor... | 07/27/2010 |
