Matches 1 - 50 out of 159 1 2 3 4 >


Match Document Document Title
9042200 Downhole telemetry system  
A downhole telemetry system usable with a subterranean well comprises at least one pressure pulse generator, at least one pressure transmitter located in an internal tube space in the well and at...
9035788 Real time telemetry  
A real time telemetry system is disclosed for use with a drilling system including a rotary valve 28 controlling the supply of drilling fluid or mud to a downhole tool. The system comprises...
9013957 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...
9007231 Synchronization of distributed measurements in a borehole  
A system and method to synchronize distributed measurements in a borehole are described. The system includes a plurality of wired segments coupled together by couplers and a plurality of nodes...
8994550 Transmitter and receiver synchronization for wireless telemetry systems  
A method and system are presented for transmitting data along tubing in a borehole, comprising generating an acoustic signal using a transmitter at a first location on the tubing, and receiving...
8994549 System and method of facilitating oilfield operations utilizing auditory information  
The invention provides a system and method for facilitating oilfield operations utilizing auditory data. In one embodiment, the present invention generates one or more auditory mapping structures...
8988969 Detection of cross bores involving buried utilities  
Evaluating utilities involves generating an acoustic or seismic source signal, communicating the source signal to a first underground utility, moving a receiver through a second underground...
8982667 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...
8981957 Method and apparatus for remotely controlling downhole tools using untethered mobile devices  
Remote operation of downhole tools in a subterranean wellbore is performed by inserting untethered, mobile devices sequentially into the wellbore. The mobile devices can include motive means,...
8976017 Method for inspecting down hole drilling systems for flaws using ultrasonics  
A method for inspecting down hole drilling systems for identifying indications of flaws in material. The method can include removing particulate, disposing a wave coupling medium on an area of...
8942330 Interference reduction method for downhole telemetry systems  
A method for reducing interference in a received downhole telemetry signal includes: segmenting a received signal; windowing each signal segment; transforming each windowed signal segment into a...
8935100 System and method for production reservoir and well management using continuous chemical measurement  
A system performs methods for well and reservoir management for optimized production of fluids in a reservoir. The system includes a knowledge engine configured to receive a plurality of field...
8893822 Apparatus and methods for real time communication between drill bit and drilling assembly  
An apparatus and method of performing a wellbore operation. The apparatus includes a drill bit that has a cavity at an end thereof and a communication device placed in the cavity. The...
8890710 Method and system of an electromagnetic telemetry  
An electromagnetic telemetry repeater. At least some of the illustrative embodiments are methods comprising inducing an electrical signal along a metallic tubular (the electrical signal carrying...
8880349 Mud pulse telemetry  
Mud pulse telemetry. The various embodiments are directed to methods and systems of encoding data in a mud pulse telemetry system, where at least a portion of the data is encoded the time between...
8811118 Downhole noise cancellation in mud-pulse telemetry  
Pressure measurements are made using a pressure sensor in the proximity of the drillbit during drilling operations. A filtered version of the pressure measurements is provided to a pulser for a...
8792304 Downlinking communication system and method using signal transition detection  
A downlinking signal is transmitted downhole from the surface using drilling fluid as the communications medium. The downlinking signal includes at least a synchronization phase and a command...
8750075 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...
8705318 Data aggregation for drilling operations  
A method for aggregating data for a drilling operation. The method includes acquiring the data from a number of data sources associated with the drilling operation, synchronizing a timing of the...
8689904 Detection of gas influx into a wellbore  
An influx of gas into a borehole can be detected by deploying a string of acoustic sensors along a drill string or other conduit to monitor an acoustic characteristic, such as velocity or...
8693284 Apparatus for creating pressure pulses in the fluid of a bore hole  
An apparatus for creating pressure pulses in the fluid of a bore hole is described. The preferred embodiment takes the form of a mud pulser apparatus having a signalling valve controlled by a...
8688382 Detection of downhole vibrations using surface data from drilling rigs  
Disclosed is a method for estimating downhole lateral vibrations a drill tubular disposed in a borehole penetrating the earth or a component coupled to the drill tubular. The method includes...
8654832 Apparatus and method for coding and modulation  
A communication method includes: receiving input data at a transmitter, the transmitter including at least one convolutional encoder and at least one modulator; applying the input data to a...
8634273 Acoustic telemetry system using passband equalization  
An embodiment includes a method comprising transmitting and receiving an acoustic signal that is modulated along a jointed tubing. The acoustic signal may be transmitted in multiple passbands of...
8629782 System and method for using dual telemetry  
A system and a method use dual telemetry for tools located in a wellbore. A first telemetry system and a second telemetry system coordinate communication with the tools. Both the first telemetry...
8611187 Miner acoustic communication and location system  
A miner communication and locating system is disclosed. Two technologies used in the system include a communicator, and a locator array that may be used with a computer. The communicator portion...
8514657 Generating fluid telemetry  
A downhole tool includes a tool body, stator, and rotor. The tool body is aligned along a tool centerline and includes an aperture therethrough operable to pass a fluid to an exterior of the body....
8437220 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”...
8393412 System and method for accurate wellbore placement  
A system and method of closed loop control whereby groupings of surface sonic transmitters disposed along the planned path of a well send sonic wave energy to a downhole sonic receiver (or...
8381838 System and apparatus for directing the drilling of a well  
A system for directing the drilling of a well at a drill-site includes an instructing unit, an instructed unit, and a central unit. The instructed unit receives drilling instruction from an...
8302685 Mud pulse telemetry data modulation technique  
A technique for communicating data within a wellbore is provided. In one embodiment, a method includes receiving digital data and encoding the digital data into symbols each representative of one...
8258975 Communication system for communication with and remote activation of downhole tools and devices used in association with wells for production of hydrocarbons  
A system for communicating with downhole tools and devices is disclosed. The system includes multiple communication devices which, in combination, permit operators at the surface to operate...
8120509 MWD data transmission  
An MWD data transmission system and method for determining and transmitting the environmental properties of the downhole borehole assembly (BHA) to surface data receivers via mud pulse telemetry,...
8090227 Purging of fiber optic conduits in subterranean wells  
Purging of fiber optic conduits in subterranean wells. A downhole optical sensing system includes an optical line, at least two tubular conduits, one conduit being positioned within the other...
8077053 Method and apparatus for sensing a borehole characteristic  
An apparatus and method are disclosed for sensing a characteristic of a borehole. An exemplary apparatus includes a conductive pipe; an inlet, connected to the conductive pipe, for applying pulse...
8040249 Acoustic telemetry transceiver  
One embodiment includes an apparatus that includes a piezoelectric transducer to generate an acoustic signal that is to modulate along a mandrel, wherein the piezoelectric transducer includes at...
8009511 Pressure waves decoupling with two transducers  
A telemetry system for communication in a borehole uses two spaced-apart transducers. The outputs from the two transducers are filtered to decoupled tool signals traveling in opposite directions....
7994932 Borehole telemetry system  
An acoustic telemetry apparatus and method for communicating encoded digital data from a down-hole location through a borehole to the surface is described including an acoustic channel terminated...
7835226 Communications and power harvesting system for in-pipe wireless sensor networks  
A system or corresponding method provides for communicating data in confined waveguides containing a fluid. The system includes processing and transmitter/receiver operations at nodes in or alone...
7814036 Processing well logging data with neural network  
An artificial neural network, ANN, and method of training the ANN for inversion of logging tool signals into well logs of formation parameters is disclosed. Properly selected synthetic models of...
7808859 Oscillating shear valve for mud pulse telemetry  
An oscillating shear valve system for generating pressure fluctuations in a flowing drilling fluid comprising a stationary stator and an oscillating rotor, both with axial flow passages. The rotor...
7805247 System and methods for well data compression  
Systems and methods in which data compression techniques are utilized to fill a predetermined channel capacity are shown. According to one configuration, event data points within test data are...
7777645 Acoustic telemetry transceiver  
One embodiment includes an apparatus that includes a piezoelectric transducer to generate an acoustic signal that is to modulate along a mandrel, wherein the piezoelectric transducer includes at...
7750808 Data retrieval tags  
Data retrieval tags, drillstring communications systems and methods, and computer programs are disclosed. The data retrieval tag includes an insulator substrate, at least one analog memory cell...
7706354 Telephone switching system accommodating a plurality of line packages  
A telephone switching system includes line packages and a switch unit allowing a path to be established between the line packages. At least one line package is interconnected to, e.g. a...
7605716 Telemetry system with an insulating connector  
The present invention provides an electromagnetic telemetry apparatus and methods that include an insulating connector that comprises an outer metallic female member that has an inner conical...
7603238 Analysis of time-series data using singularities  
A method for acquiring and analyzing time-series data using singularities is described. This method allows for the analysis of data over a wide spectrum of frequencies. Once the data is acquired...
7580797 Subsurface layer and reservoir parameter measurements  
Method and system for determining a characteristic of a subsurface formation traversed by a wellbore. A fluid flow rate in the wellbore is established, the flow being associated with fluid...
7561997 Simulation system including a simulator and a case manager adapted for organizing data files for the simulator in a non-conventional tree like structure  
A simulation system includes a case manager adapted for organizing and managing a plurality of sets of input data being used by the simulation system. The case manager includes a plurality of case...
7535795 Seismic data acquisition system and method for downhole use  
A method and system for conducting a seismic survey by lowering a string of intelligent clampable sensor pods with 3-C sensors into a borehole. The string of pods is serially interconnected by a...

Matches 1 - 50 out of 159 1 2 3 4 >