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US20090079199 ELECTRIC GENERATOR OPERATED BY RECIPROCATING WELLBORE PUMP AND MONITORING SYSTEM USED THEREWITH  
An electrical system for use with a sucker rod pump includes an electric generator configured to be operated by motion of a sucker rod string. The rod string is configured to transfer motive power...
US20140126330 COILED TUBING CONDITION MONITORING SYSTEM  
A system and techniques for acoustically establishing the onset of an emergent condition relative coiled tubing in a well. The system may include fiber optic line run through the coiled tubing for...
US20110149687 ACOUSTIC TRANSCEIVER WITH ADJACENT MASS GUIDED BY MEMBRANES  
An acoustic transceiver assembly including a housing, an oscillator, and at least one membrane. The housing has at least one inner wall defining a cavity. The housing also has a first end and a...
US20100309750 Sensor Assembly  
An assembly for passive detection of features at known locations of a conduit. The assembly is a sensor assembly particularly well suited for detection of casing collars at known locations of...
US20140126331 ACOUSTIC TELEMETRY WITH DISTRIBUTED ACOUSTIC SENSING SYSTEM  
An acoustic telemetry method for use with a subterranean well can include positioning a well tool in the well, the well tool including an acoustic transmitter and a sensor, and an acoustic...
US20150023137 SYSTEM AND METHOD FOR USING CONTROLLED VIBRATIONS FOR BOREHOLE COMMUNICATIONS  
A system for producing controlled vibrations within a borehole comprises a vibration mechanism an impact to produce a plurality of vibration beats. The vibration mechanism is located substantially...
US20110017512 INSTRUMENTATION OF APPRAISAL WELL FOR TELEMETRY  
The present disclosure relates to a telemetry system for use in developing a field of wells. The telemetry system has a first downhole device capable of transmitting and/or receiving signals...
US20140133276 Telemetry System, a Pipe and a Method of Transmitting Information  
The invention relates to a telemetry system for use in a pipe having a wall, comprising a transmitter adapted to generate at least one acoustic wave in a frequency range of about 50-300 kHz and to...
US20100290313 PULSE STIMULATION TOOL AND METHOD OF USE  
A downhole pulse stimulation tool for use within a production or injection string including a tubing string, a rotating or reciprocating rod string and a downhole pump. The tool is formed by a...
US20070295504 Providing A String Having An Electric Pump And An Inductive Coupler  
A system for use in a well includes a string for placement in the well, where the string including an electric pump and a first inductive coupler portion. A completion section is deployed in a...
US20120249338 WIRELESS NETWORK DISCOVERY AND PATH OPTIMIZATION ALGORITHM AND SYSTEM  
A wireless modem for communication in a network of wireless modems via a communication channel includes a transceiver assembly, transceiver electronics and a power supply. The transceiver...
US20070258326 Telemetry wave detection apparatus and method  
Non-contacting means of measuring the material velocities of harmonic acoustic telemetry waves travelling along the wall of drillpipe, production tubing or coiled tubing are disclosed. Also...
US20100039898 ACOUSTIC TELEMETRY SYSTEM USING PASSBAND EQUALIZATION  
An embodiment includes a method comprising receiving an acoustic signal that is modulated along a jointed tubing. The method also includes performing equalization over a passband of the acoustic...
US20150192010 ACOUSTIC TELEMETRY STACKED-RING WAVE DELAY ISOLATOR SYSTEM AND METHOD  
A stacked-ring, slow-wave acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the...
US20070132606 Channel Equalization for Mud-Pulse Telemetry  
Channel estimation and signal equalization is used in a mud-pulse telemetry system for uplink communication during drilling of wellbores.
US20140112100 AIR HAMMER OPTIMIZATION USING ACOUSTIC TELEMETRY  
A system and method of optimizing air hammer performance in a well drilling rig whereby an electronic acoustic receiver (EAR) is used to monitor the effects of changing any of the operating...
US20110141852 AIR HAMMER OPTIMIZATION USING ACOUSTIC TELEMETRY  
A system and method of optimizing air hammer performance in a well drilling rig whereby an electronic acoustic receiver (EAR) is used to monitor the effects of changing any of the operating...
US20060028916 Acoustic telemetry installation in subterranean wells  
Acoustic telemetry installation in subterranean wells. In a described embodiment, a method of contacting an assembly with a generally tubular string in a subterranean well includes the steps of:...
US20090146836 METHODS AND APPARATUS TO CONFIGURE DRILL STRING COMMUNICATIONS  
Methods and apparatus to configure drillstring communications are described. In one disclosed example, a method to configure drillstring communications involves generating a signal at a...
US20090059722 Wired Pipe Depth Measurement System  
A method and apparatus for estimating a change in length of a wellbore conveyance device in a wellbore. A reference signal is sent along a first path and a wellbore signal having a phase...
US20080025148 Dynamic efficiency optimization of piezoelectric actuator  
This invention applies to the means whereby capacitance changes due to varying temperature and/or pressure in a piezoelectric transducer used for acoustic telemetry in a drilling environment is...
US20090003133 Acoustic Telemetry  
A method of transmitting data acoustically through a tubular structure, such as a drill string or production tubing in an oil or gas well, predominantly comprising a series of tubing sections...
US20140126332 VERIFICATION OF WELL TOOL OPERATION WITH DISTRIBUTED ACOUSTIC SENSING SYSTEM  
A system for use with a subterranean well can include a well tool which generates an acoustic signal in response to operation of the well tool, the acoustic signal being detected by an acoustic...
US20070201308 Decision Feedback Equalization in Mud-Pulse Telemetry  
A decision feedback equalizer (DFE) structure which uses a reference signal based adaptive equalizer as forward filter and a blind adaptive equalizer as feedback filter is used for surface...
US20080285386 Training For Directional Detection  
Acoustic telemetry devices and methods that provide directional detection. In one embodiment, a disclosed acoustic telemetry device comprises at least two acoustic sensors and an electronics...
US20150085611 ACOUSTIC MONITORING OF WELL STRUCTURES  
An embodiment of a monitoring system for inspecting underground well structures includes a transmitter, a receiver, a processing module, and a power supply. The monitoring system is used to...
US20100133004 System and Method for Verifying Perforating Gun Status Prior to Perforating a Wellbore  
A system for verifying perforating gun status prior to perforating a wellbore. The system includes a perforating gun (38) having a leak sensor disposed therein that is positionable at a target...
US20060044940 High-speed, downhole, seismic measurement system  
A high-speed seismic measurement system for use in cross-well and single-well seismic systems is disclosed in one aspect of the present invention as including a drill string and multiple...
US20080056067 Method of Detecting Signals in Acoustic Drill String Telemetry  
A method of acoustic telemetry in a drill string in a wellbore, comprises; transmitting an acoustic signal related to a parameter of interest from a transmitting location into the drill string;...
US20150131410 Wellbore Telemetry and Noise Cancelation Systems and Methods for the Same  
A method of signal processing includes providing at least a first pressure sensor and a second pressure sensor spaced in a drilling system and using an algorithm to separate the downwardly...
US20110286307 ACOUSTIC LOGGING WHILE DRILLING TOOL HAVING RAISED TRANSDUCERS  
An acoustic logging while drilling tool includes an acoustic transmitter and a linear array of acoustic receivers. At least one of the transmitter and the linear array of receivers is deployed on...
US20070257809 Acoustic telemetry system optimization  
A system and method of closed loop control whereby acoustic telemetry devices, both at surface and downhole, form nodes of a feedback loop; said feedback loop enables an automatic and dynamic...
US20120250461 TRANSMITTER AND RECEIVER SYNCHRONIZATION FOR WIRELESS TELEMETRY SYSTEMS  
An acoustic modem for communication in a network of acoustic modems via a communication channel. The acoustic modem comprises a transceiver assembly, transceiver electronics, and a power supply....
US20080013403 Telemetry transmitter optimization using time domain reflectometry  
A method for enhancing downhole telemetry performance comprising enhancing a signal in order to offset signal-to-noise ratio reduction with increasing measured depth, wherein the signal is...
US20100208552 ACOUSTIC TELEMETRY STACKED-RING WAVE DELAY ISOLATOR SYSTEM AND METHOD  
A stacked-ring, slow-wave acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the...
US20140153369 DOWNHOLE LOW RATE LINEAR REPEATER RELAY NETWORK TIMING SYSTEM AND METHOD  
A downhole repeater network timing system for a drilling rig including a drillstring extending subsurface downwardly from a surface wellhead. The system includes a node located at the drillstring...
US20100172211 Resistivity Measurement Through Metal Casing Using Magnetic Field and Magnetoacoustic Phenomena  
Measurements of acoustic velocities are made through a case borehole in the absence and presence of an applied magnetic field. A formation resistivity parameter may be estimated from differences...
US20120170409 Determining the Order of Devices in a Downhole String  
A string of subs includes a controller sub. The controller sub includes a first end, a second end, a controller, a first controller bus coupled to the controller, the first controller bus exiting...
US20080253228 Drill string telemetry methods and apparatus  
A method is provided which transmits information using a plurality of data transmission nodes situated along a drill string. In this method, a first node obtains a transmission status of a second...
US20110069583 APPARATUS AND METHOD FOR ACOUSTIC TELEMETRY MEASUREMENT OF WELL BORE FORMATION DEBRIS ACCUMULATION  
An invention is claimed wherein the signal loss along steel drill pipe walls can be estimated in the absence of a loss mechanism due to the formation debris at various positions in the well bore;...
US20100195441 PARALLEL-PATH ACOUSTIC TELEMETRY ISOLATION SYSTEM AND METHOD  
An acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe and production tubing includes an acoustic wave transmitter and an acoustic isolator. A “down”...
US20110280104 Dual top drive systems and methods for wellbore operations  
Systems and methods for wellbore operations using a dual top drive system with two top drives.
US20110241897 SYSTEM AND METHOD FOR REAL TIME DATA TRANSMISSION DURING WELL COMPLETIONS  
Presently, existing completion tools have not been designed to couple with wired drill pipe. As such, present completions operations and tools have not been able to take advantage of the expanded...
US20130051177 Full Flow Pulser for Measurement While Drilling (MWD) Device  
An apparatus, method, and system described for generating pressure pulses in a drilling fluid utilizing a flow throttling device longitudinally and axially positioned within the center of a main...
US20110205847 WIRELESS TELEMETRY SYSTEMS FOR DOWNHOLE TOOLS  
Apparatus and method for transmitting data in a borehole (10) between a downhole installation including one or more tools (20) (for example downhole testing tools) and a surface installation (62),...
US20140233353 METHOD AND DEVICE FOR WELL COMMUNICATION  
The present invention concerns a method and a well string element for transmitting data in a well. The well string element (20c) includes an elongated body (80) that defines a through channel...
US20120170410 PIPING COMMUNICATION  
Apparatus, systems, and methods may operate to communicate, by an information-bearing signal across a mechanical interface, between a pair of electromechanical transducer elements when the pair is...
US20100135117 Downhole Timing Recovery and Signal Detection  
The present invention relates to telemetry apparatus and methods, and more particularly to acoustic telemetry apparatus and methods used in the oil and gas industry. More specifically, the...
US20100097890 METHODS AND APPARATUSES FOR DATA COLLECTION AND COMMUNICATION IN DRILL STRING COMPONENTS  
A drill string component includes a box-end and a pin-end. Each end includes a signal transceiver, which are operably coupled together. Each signal transceiver communicates with another signal...
US20150003202 WIRELESS ACOUSTIC COMMUNICATIONS METHOD AND APPARATUS  
A method and apparatus for generating, propagating, encoding, decoding, modulating and detecting acoustic signals in a well borehole that comprises a signal generator (10) located at a first...

Matches 1 - 50 out of 92 1 2 >