Class / Patent application number | Description | Number of patent applications / Date published |
340854400 | Drill string or tubing support signal conduction | 56 |
20090146836 | 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 transmitter coupled to a drillstring, transmitting the generated signal via the transmitter to a receiver, sampling the transmitted signal at the receiver to generate a received signal, calculating a transmission characteristic based on a comparison of the generated signal and the received signal, and configuring at least one of the transmitter or receiver based on the transmission characteristic. | 06-11-2009 |
20090201170 | HIGH SPEED DATA TRANSFER FOR MEASURING LITHOLOGY AND MONITORING DRILLING OPERATIONS - A system for determining at least one of a lithology of a formation traversed by a borehole and an operational condition of a component of a drill string disposed in the borehole, the system including: a sensor for performing downhole measurements of a drilling parameter, the sensor being disposed at least one of at and in the drill string; a high speed wired pipe telemetry system for transmitting the downhole measurements in real time, a processor coupled to the telemetry system for receiving the measurements, the processor disposed external to the drill string; and a computer processing system coupled to the processor, the computer processing system comprising a model that receives the downhole measurements and surface measurements of a drilling parameter as input, the model providing as output at least one of the lithology of the formation and the operational condition of the component. | 08-13-2009 |
20100039285 | WIRELESS DRILL STRING TELEMETRY - A communication module for transfer of information along a drill string has at least one antenna coil, wherein the communication module is configured such that a central coil axis of the antenna coil is substantially perpendicular to a longitudinal axis of a drill pipe to which it is affixed. Signals are relayed magnetically from node to node to exchange data along any desired length of drill string. The drill string itself forms a portion of the magnetic flux path and the earth and/or surrounding media forms another substantial portion of the closed flux path. Magnetic induction is advantageous because the steel drill pipe is ferromagnetic and exhibits a magnetic permeability of a few hundred to a few thousand times that of air. | 02-18-2010 |
20100328096 | WELLBORE TELEMETRY SYSTEM AND METHOD - A hybrid telemetry system for passing signals between a surface control unit and a downhole tool is provided. The downhole tool is deployed via a drill string into a wellbore penetrating a subterranean formation. The hybrid telemetry system includes an uphole connector, a downhole connector, and a cable operatively connecting the uphole and downhole connectors. The uphole connector is operatively connectable to a drill string telemetry system for communication therewith. The downhole connector is operatively connectable to the downhole tool for communication therewith. | 12-30-2010 |
20110006910 | 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 modified at specified measured depths which are inferred from acoustic wave velocity determination. | 01-13-2011 |
20110018735 | ACOUSTIC COMMUNICATION APPARATUS FOR USE WITH DOWNHOLE TOOLS - Acoustic communication apparatus for use with downhole tools are described. An example acoustic communication apparatus for use in a wellbore includes a first acoustic transducer to generate first acoustic signals. The first acoustic transducer is mounted in an interior of a first drill collar to transmit the first acoustic signals via at least a portion of a body of a drillstring or a mud channel within the drillstring to a second drill collar. Additionally, the example acoustic communication apparatus includes a first receiver mounted to the first drill collar to receive second acoustic signals transmitted from the second drill collar. | 01-27-2011 |
20110032117 | APPARATUS FOR RECEIVING AND TRANSMITTING SIGNALS IN ELECTROMAGNETIC TELEMETRY SYSTEM USED IN A WELLBORE - A downhole electromagnetic telemetry unit for use with a tubing string ( | 02-10-2011 |
20110057810 | WIRED DRILL PIPE CONNECTION FOR SINGLE SHOULDERED APPLICATION AND BHA ELEMENTS - A method and apparatus for transmitting data across a tool joint connection. In one embodiment, the system includes a first data transmission element connected to a first downhole component, a second data transmission element connected to a second downhole component, and a biasing element biasing at least one of the first and second data transmission elements towards the other data transmission element such that the first and second data transmission elements are in data communication with each other. | 03-10-2011 |
20110163889 | 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 disclosed are contacting means, enabling measurement of accelerations or material velocities associated with acoustic telemetry waves travelling along the wall of the tubing, utilizing as a detector either a wireless accelerometer system or an optical means, or both; these may also be applied to mud pulse telemetry, wherein the telemetry waves are carried via the drilling fluid, causing strain in the pipe wall that in turn causes wall deformation that can be directly or indirectly assessed by optical means. | 07-07-2011 |
20110205080 | 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 the acoustic signal at a receiver at a second location on the tubing. The method and system further comprise: (i) generating the acoustic signal at the transmitter at a first frequency and bit rate; (ii) receiving the acoustic signal at the first frequency at the receiver and attempting to synchronise the receiver at the first frequency, and (iiia) if the synchronization is successful, continuing to transmit the acoustic signal so as to pass the data from the transmitter to the receiver; or (iiib) if the synchronization is unsuccessful, adjusting the frequency and/or bit rate of the signal and repeating steps (i)-(iii) on the basis of the adjusted signal. | 08-25-2011 |
20120256759 | System and Method for Downhole Telemetry - A system and method are provided for providing electromagnetic (EM) measurement-while-drilling (MWD) telemetry capabilities using an existing mud-pulse MWD tool. An EM tool intercepts the output from the mud-pulse tool and generates an EM signal that mimics a mud-pulse pressure signal. The EM signal is intercepted at the surface by a receiver module that conditions the signal and inputs the signal into the existing pulse tool receiver. Since the EM signal mimics a mud-pulse signal, the pulse tool receiver does not require software or hardware modifications in order to process an EM telemetry mode. The EM tool can be adapted to also provide dual telemetry by incorporating a conventional pressure pulser that would normally be used with the pulse tool. | 10-11-2012 |
20130027216 | COMMUNICATION SYSTEM FOR TRANSMITTING INFORMATION VIA DRILLING RODS - A communication system for transmitting information via drilling rod linkages includes a drill drive, drilling rod linkages comprising a first drilling rod linkage and at least one second drilling rod linkage. The first drilling rod linkage comprises an electrical line, an upper end and a lower end which comprises a receptacle for a drill head. The second drilling rod linkage comprises at least one electrical line, an upper end and a lower end. A sensor and/or actuator is arranged at the lower end of the first drilling rod linkage and at the drill head and transmits data. A first communication unit and an electronics unit are arranged at a drive end. A further communication unit is arranged at the upper end of the first drilling rod linkage and at the upper and lower ends of the second drilling rod linkage. The first communication unit and the further communication units are radio modules which transmit/receive data. | 01-31-2013 |
20130038464 | Acoustic Telemetry System for Use in a Drilling BHA - A system for transmitting data along a borehole, comprises a drill string; a bottom hole assembly connected to the drill string including a drilling motor powered by flow of fluid from the drill string, a drill bit connected below the drilling motor and arranged to be rotated by the motor, and at least one sensor being positioned between the drilling motor and the drill bit; a first telemetry system for transmitting data from a first location below the drilling motor to a second location above the drilling motor, the first telemetry system comprising a first transmitter at the first location configured to induce an acoustic signal for propagation along the BHA, and a first acoustic receiver at the second location arranged to receive the acoustic signal; and a second telemetry system comprising two or more transmission channels for transmitting data received by the first acoustic receiver from the second location back up the borehole. The transmission channels are selectable based on a measured condition of the borehole. | 02-14-2013 |
20130049983 | METHOD FOR CALIBRATING A HYDRAULIC MODEL - A method for a hydraulic model for subterranean drilling fluids includes acquiring first and second axially spaced temperature and pressure measurements in the wellbore. The pressure measurements may be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density(ies) may be processed in combination with the temperature and pressure measurements to compute one or more unknown coefficients of the hydraulic model. | 02-28-2013 |
20130063276 | DOWNHOLE TELEMETRY SIGNALLING APPARATUS - A data logging sub is mounted at the downhole end of a drill string, and a receiver, or detector is mounted at the top of the drill string at the well-head. The downhole logging sub includes a digital signal transmitter that is operatively connected to the drill string, such that it can send a series of charge pulses along the drill string. The receiver is mounted to detect changes in electrical charge on the drill string. The drill string leaks charge to the surrounding geological formation, but the time constant of the leakage is large compared to the quantity of charge of the charge pulses, and the low resistance of the drill string as compared to the resistivity of the surrounding formation. The leakage is high enough that the charge leaks off the drill string fast enough to permit a useful baud rate. | 03-14-2013 |
20130076527 | Mud Powered Inertia Drive Oscillating Pulser - A mud pulse telemetry tool is used in a drill string that has a drilling fluid flowing inside. The mud pulse telemetry tool may include a pulser disposed in the drill string and a drive system for driving the pulser. The pulser may include a non-rotating mud pulse stator and a mud pulse rotor disposed proximate to the stator. The drive system may include a turbine stator, a turbine rotor, and a rotatable inertial member magnetically coupled to the turbine rotor. The inertial member may be operatively connected at a first end to the mud pulse rotor. In the mud pulse telemetry tool, rotational energy may be transmitted from the turbine rotor to the rotatable inertial member by a magnetic coupling. The rotatable inertial member may be operatively connected to a supplemental motor that is adapted to supplement rotational energy imparted to the rotatable inertial member by the drive system. | 03-28-2013 |
20130120154 | MULTIPLE DISTRIBUTED SENSORS ALONG A DRILLSTRING - Systems and methods for downhole measurement and communications are disclosed. The system includes a communications medium, at least partially disposed in a drillpipe, a processor coupled to the communications medium, at least two sensor modules coupled to the communications medium, where at least one of the sensor modules is along a drillpipe, and at least one communications coupler to couple at least one sensor module to the communications medium. | 05-16-2013 |
20130147633 | Modular Data Acquisition for Drilling Operations - Data associated with drilling operations, downhole components, wellbores, or well formations can be acquired by providing one or more data acquisition modules having one or more sensors into one or more recessed chambers formed within a drill bit, stabilizer reamer, or other downhole tool, enabling direct rather than inferential data to be obtained for analysis. The modules can be programmed with pre-selected trigger thresholds, such that data acquisition is initiated when certain conditions are met, and can be interchanged with other types of modules at the surface. | 06-13-2013 |
20130176139 | ADVANCED DRILL STRING COMMUNICATION SYSTEM, COMPONENTS AND METHODS - A drill string communication system is described. An uphole transceiver can couple a signal onto the drill string at a power that is always greater that a selectable power for a downhole signal. Communication from a drill rig to an inground tool can be re-initiated using a maximum uphole transmit power of an uphole transceiver. A procedure can establish a new set of transmission parameters for a drill string signal to establish communication between the drill rig and the inground tool. The system can include a walkover locator that receives an active/inactive status-controlled electromagnetic locating signal. Responsive to a locating signal degradation, a reconfiguration command can modify the locating signal. The uphole transceiver and a downhole transceiver can automatically modify at least one parameter of a downhole signal. An uphole receiver can apply a compensation response to a transferred signal to compensate for a drill string channel transfer function. | 07-11-2013 |
20130249704 | EXPANDABLE TUBULAR ANTENNA FEED LINE FOR THROUGH CASING E/M COMMUNICATION - The invention generally relates to data transmission in a wellbore. In one aspect, a system for communicating electromagnetic waves in a wellbore is provided. The system includes a sensor equipment package for sensing a parameter in the wellbore and generating an electromagnetic wave. The system further includes an expandable composite tubular having a conducting member and an insulating member. The composite tubular is configured to be expanded from a first diameter to a second larger diameter, wherein the composite tubular in the second larger diameter forms a connection with the wellbore. In another aspect, a method of using a system for communicating electromagnetic waves in a wellbore is provided. In a further aspect, a system for providing electrode contact surfaces between a sensor equipment package and a surrounding tubular disposed in a wellbore is provided. | 09-26-2013 |
20130265171 | DATA TRANSMISSION IN DRILLING OPERATION ENVIRONMENTS - Apparatus, systems, and methods may operate to transmit a data signal along a transmission line extending lengthwise along a drill string, the transmission line comprising an outer conductive path provided by a tubular wall of a drill pipe that extends along the drill string; and an internal conductive path extending along an interior passage that is bounded by a radially inner cylindrical surface of the drill pipe and along which drilling fluid is conveyed, the inner conductive path being substantially insulated from the outer conductive path. Additional apparatus, systems, and methods are described. | 10-10-2013 |
20130278433 | Manual RFID Antenna Tuning System and Method - A system, in certain embodiments, includes a radio frequency identification (RFID) antenna configured to communicate with an RFID tag. The system also includes an antenna tuner electrically coupled to the RFID antenna, and configured to manually tune the RFID antenna to match an inductance of the RFID tag. | 10-24-2013 |
20130300570 | Method and System of Gamma Pulse Telemetry - Gamma pulse telemetry. At least some of the illustrative embodiments are methods including: reading data associated with a borehole penetrating an earth formation; encoding the data in a first plurality of gamma bursts, the encoding by an encoding system coupled within the drill string, and where the each gamma burst travels a first distance along the borehole; receiving the first plurality of gamma bursts by a receiver system coupled within the drill string; and decoding the first plurality of gamma bursts and thereby recovering the data. | 11-14-2013 |
20130321165 | SIGNAL AND POWER TRANSMISSION IN HYDROCARBON WELLS - One aspect relates to a method of installing a transmission system in a hydrocarbon production well. The transmission system is operable for transmitting power and/or control signals down the well or for transmitting data signals back up the well. The well comprises a main well bore, a production tubing inside the main well bore and a branch off the production tubing. The branch comprises a side track tubing. The method includes: providing a sensor and/or load assembly in the branch; installing a first inductive coupler of an induced current transmission arrangement around the production tubing in the main well bore, and connecting the sensor/load assembly to the first inductive coupler via a communication link. Another aspect relates to a hydrocarbon production well installation. | 12-05-2013 |
20130328692 | ELECTRO-MAGNETIC ANTENNA FOR WIRELESS COMMUNICATION AND INTER-WELL ELECTRO-MAGNETIC CHARACTERIZATION IN HYDROCARBON PRODUCTION WELLS - Methods, a system and antennas are provided for transmitting or receiving signals from a hydrocarbon production well. The well comprises a well bore formed in a formation, a production liner/tubing extending axially along the well bore, and an inductive coupling disposed around the liner/tubing. The liner tubing is electrically coupled to the formation at two axially separated locations and is electrically isolated from the formation between the locations. For transmitting, an alternating current signal to the inductive coupling to induce a current in the liner/tubing, the liner tubing forming a dipole antenna that generates an electromagnetic radiation signal propagating through the formation. For receiving, the dipole antenna is exposed to an electromagnetic radiation signal propagated through the formation which induces an alternating current signal in the tubing and the current signal is detected at the inductive coupling. | 12-12-2013 |
20140055278 | DRILL STRING INGROUND ISOLATOR IN AN MWD SYSTEM AND ASSOCIATED METHOD - An inground isolator and associated method can provide an electrically isolated break in a drill string using electrical insulating members/isolators that are supported by a housing. During drill string operations, the isolators are subject only compressive forces responsive to both extension (pushing) and retraction (pulling) by the drill string. The isolators can be formed from an electrically insulating material such as a ceramic material. An interchangeable inground tool system is described which integrally serves to provide an electrically isolating gap in the drill string. | 02-27-2014 |
20140055279 | METHODS AND APPARATUS FOR TRANSMISSION OF TELEMETRY DATA - A system for signal transmission along a drill string is disclosed. A first drill pipe section and a second drill pipe section each comprise an inner pipe. A first repeater sub is coupled to the first drill pipe section and the second drill pipe section at a first position along the drill string. The first repeater sub comprises a first toroid corresponding to the first drill pipe section and a second toroid corresponding to the second drill pipe section. A signal transmitted through the first drill pipe section, an inner mandrel of the repeater sub and the inner pipe of the first drill pipe section is received by the first toroid. The first repeater sub processes the signal received by the first toroid to generate a processed signal and transmits the processed signal to the second drill pipe through the second toroid. | 02-27-2014 |
20140085098 | DOWNHOLE COMMUNICATION APPLICATIONS - In some embodiments, an apparatus and a system, as well as a method and an article, may operate to transform acquired data into transformed data using at least one transform selected from a plurality of transforms according to an optimization metric calculation that operates on single, fixed-length packets of the transformed data, and a preselected quality criterion threshold. Further activity may include transmitting an amplified version of an electrical signal in a geological formation, the electrical signal including the transformed data. The amplified version may be received, and further activity may include transforming the transformed data into an estimate of acquired data, the transforming using at least one transform selected from a plurality of transforms according to an optimization metric calculation that operates on single, fixed-length packets of the transformed data and/or the estimate, and a preselected quality criterion threshold. Additional apparatus, systems, and methods are disclosed. | 03-27-2014 |
20140104073 | TUBULAR DEVICE WITH RADIOFREQUENCY COMMUNICATION FOR WELL HEAD - An element for a drill string including a body with a generally axisymmetric appearance and a wave type communication device installed in the body. The communication device includes a set of antennae including plural antennae distributed at a periphery of the body, about an axis of symmetry thereof, and capable of operating in transmission and in reception, operating electronics capable of organizing transfer of data, in transmission and in reception, an actuator capable of selectively connecting the antennae of the set to the operating electronics, and an antenna monitor configured to regularly evaluate a reception quality parameter for at least one sub-assembly of the set of antennae, to repetitively select one or more antennae of the set as a function of reception quality parameters derived from the sub-assembly and to command the actuator to connect the selected antenna or antennae to the operating electronics. | 04-17-2014 |
20140152458 | INDUCTIVE CONNECTION - A well pipe for inductive connection to a well tool includes a tubular pipe string and an inductive pipe element. The pipe string includes an inner pipe wall defining a longitudinal opening, where a compartment is provided radially in a radial groove of the inner pipe wall and the inductive pipe element is provided in the compartment. The well tool includes a tool body and an inductive tool element provided in a groove provided radially on the outside of the tool body. The inductive tool element is connected to the tool body by a connection device, where the inductive tool element is movable between a run state and a set state, where the inductive tool element is provided in the groove in the run state and where the inductive tool element is radially protruding from the groove in the set state. | 06-05-2014 |
20140176334 | ELECTRONIC FRAME FOR USE WITH COUPLED CONDUIT SEGMENTS - An electronic frame for use in a downhole component coupling mechanism includes: a first frame element including at least one retaining structure configured to retain an electronic component; and a second frame element configured to be disposed at the first frame element, the second frame element permanently joined to the first frame element to isolate the electronic component from downhole fluids and form the electronic frame, the electronic frame configured to be disposed in a coupling assembly of a first downhole component and a second downhole component and constrained axially by the coupling assembly. | 06-26-2014 |
20140210633 | METHOD FOR COMMUNICATING WITH LOGGING TOOLS - A method of communication from the surface to the downhole LT is disclosed. The method includes movement of the DS string up or down at the surface to create coded signals by the downhole TS and send those signature signals to a processor in the TS string that has been preprogramed to recognize the signature signals. | 07-31-2014 |
20140232548 | ALTERNATING FREQUENCY TIME DOMAIN APPROACH TO CALCULATE THE FORCED RESPONSE OF DRILL STRINGS - A method for estimating a steady state response of a drill string in a borehole includes calculating a first displacement of the drill string in a frequency domain for a first excitation force frequency and a number of multiples of this frequency using an equation of motion of the drill string. The equation of motion has a static force component, an excitation force component, and a non-linear force component with respect to at least one of a deflection and a derivative of the deflection of the drill string. The method further includes: transforming the first displacement from the frequency domain into a time domain; calculating a non-linear force in the time domain; calculating a frequency domain coefficient derived from the calculated non-linear force in the time domain; and calculating a second displacement of the drill string in the frequency domain using the equation of motion and the frequency domain coefficient. | 08-21-2014 |
20140266770 | INGROUND DEVICE WITH ADVANCED TRANSMIT POWER CONTROL AND ASSOCIATED METHODS - An inground housing supports a transmitter for receiving electrical power from a battery. The transmitter transmits at least one signal using at least two different transmit power levels for at least one of locating the transmitter and characterizing an orientation of the transmitter. Based on detecting the battery voltage, the transmitter selects one of the transmit power levels. Transmitter output power can be controlled based on one or both of signal gain and duty cycle. | 09-18-2014 |
20140320301 | DOWNHOLE STRUCTURE SECTIONS - A lateral bore communication system where data signals are transmitted across the break in conductive path between a main bore and a lateral bore using a downhole structure section which has an electrode provided around a tubing portion and separated therefrom by an insulating layer. | 10-30-2014 |
20140368350 | APPARATUS AND METHODS FOR COMMUNICATING DOWNHOLE DATA - A tool for communicating data between multiple locations downhole includes a tool body, a first antenna including at least one electrode disposed within a wall and electrically insulated from the tool body, and an electronic circuit configured to generate an encoded electrical signal and propagate the encoded signal through the electrode into a medium surrounding the tool, and a second antenna coupled to the tool body, and an electronic circuit configured to receive an electrical signal induced by the second antenna. | 12-18-2014 |
20140375467 | Wireless Transmission of Well Formation Information - An apparatus includes an acoustic sensor that receives a signal propagated by a well formation. The acoustic sensor includes a sensing component that receives the signal, a transmitter that transmits information based on the signal, and a receiver that receives the information. The transmitter and receiver are wirelessly coupled. The transmitter and receiver may be inductively coupled, capacitively coupled, or optically coupled, or the transmitter may transmit information using radio waves. The transmitter may be encapsulated in a polymer. The acoustic sensor may be part of a system including a downhole tool that detects subterranean conditions. The downhole tool may include a retaining member that retains the acoustic sensor within an outer layer of the downhole tool. | 12-25-2014 |
20140375468 | Equipment and Methods for Downhole Surveying and Data Acquisition for a Drilling Operation - An adaptor ( | 12-25-2014 |
20150015411 | Electromagnetic Telemetry Apparatus and Methods for Use in Wellbores - In one aspect, an apparatus for use in a wellbore is disclosed that in one embodiment includes an electrically-conductive member having an outer and/or inner surface coated with an electrically-insulating material, a transmitter placed at a first location on the electrically-conductive member that induces electromagnetic wave signals that travel along the coated surface of the electrically conductive member, and a receiver placed at a second location spaced from the first location on the electrically-conductive member that detects the electromagnetic induced by the transmitter. | 01-15-2015 |
20150015412 | SYSTEM AND CONSOLE FOR MONITORING DATA STREAM QUALITY IN DRILLING AND PRODUCTION OPERATIONS AT A WELL SITE - A well advisor system and console for monitoring and managing monitoring and managing data stream quality in well drilling and production operations. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. A plurality of data checks are dynamically run on the data streams to determine the presence and quality of the data, and data quality indicators are presented on the various consoles and dashboards. | 01-15-2015 |
20150015413 | DOWNHOLE TELEMETRY SYSTEMS AND METHODS WITH TIME-REVERSAL PRE-EQUALIZATION - Specific embodiments of disclosed downhole telemetry systems and methods employ time-reversal pre-equalization. One downhole telemetry system embodiment includes an acoustic transducer and a digital signal processor. The acoustic transducer transmits an acoustic signal to a distant receiver via a string of drillpipes connected by tool joints. The digital signal processor drives the acoustic transducer with an electrical signal that represents modulated digital data convolved with a time-reversed channel response. Due to the use of time-reversal pre-equalization, the received signal exhibits substantially reduced intersymbol interference. | 01-15-2015 |
20150029035 | Downhole Surveying - A drillstring first tube portion ( | 01-29-2015 |
20150042487 | Latching Assembly for Wellbore Logging Tools and Method of Use - A latching assembly for wellbore logging tools includes a bottom hole assembly to be disposed on a distal end of a drill string. The bottom hole assembly includes a landing sub ( | 02-12-2015 |
20150070185 | APPARATUS AND METHOD FOR DRILL PIPE TRANSMISSION LINE CONNECTIONS - An apparatus for communicating a signal downhole includes a downhole pipe configured to be coupled to another downhole pipe and a protection tube secured to the downhole pipe. A transmission line is disposed in the protection tube and configured to communicate the signal. A communication device is disposed in the downhole pipe and configured to communicate the signal to another downhole pipe. An end of the transmission line is configured to be axially movable with respect to the downhole pipe in order to have the end of the transmission line extending from the protection tube to establish a connection between the transmission line and the communication device. | 03-12-2015 |
20150070186 | System and Method For Remote Sensing - A system, method and device may be used to monitor conditions in a borehole. Well tubing and casing act as a conductive pair for delivering power to one or more downhole active sensors. At the surface, power and signal are isolated so that the same conductive pair may act to transmit the sensor signals to the surface. In an embodiment, the sensor signals are RF signals and the surface electronics demodulate the RF signals from the sensor power. | 03-12-2015 |
20150130627 | Intervention Operations With High Rate Telemetry - A technique facilitates an improved operation of a tool, such as a downhole tool. The tool is operated in a manner which provides a dynamic or cyclical loading. The dynamic or cyclical loading of the tool is sampled by a suitable sensing system at a frequency greater than the frequency of the dynamic or cyclical loading to collect detailed data on the dynamic or cyclical loading. The data is used to adjust the tool in a manner which improves operation of the tool. One technique for adjusting the tool is changing the dynamic or cyclical loading of the tool by adjusting the frequency of the dynamic or cyclical loading. | 05-14-2015 |
20150308262 | TURBINE FOR TRANSMITTING ELECTRICAL DATA - The turbine ( | 10-29-2015 |
20150315906 | Downhole Electromagnetic Telemetry System Utilizing Electrically Insulating Material and Related Methods - A downhole electromagnetic telemetry system and method whereby electrically insulating material is placed above and/or below an electrical current launching device or receiver along a well string in order to extend the range of the telemetry system, increase the telemetry rate, and/or reduce downhole power requirements. | 11-05-2015 |
20150322778 | Data Transmission During Drilling - A technique facilitates efficient data transfer during a drilling operation. The drilling operation involves deploying a drill string downhole and rotating a drill bit to cut a borehole into a subterranean formation. While the drill bit is on bottom, real-time sensor data is transmitted to a surface location or other suitable location via a data transmission system. The transmission of current or real-time sensor data is stopped when the drill bit is moved off bottom. While the drill bit is off bottom, previously recorded data is sent uphole. | 11-12-2015 |
20150337650 | TELEMETRY SYSTEM, CURRENT SENSOR, AND RELATED METHODS FOR A DRILLING SYSTEM - This disclosure includes a current sensor configured to detect a signal current in a drilling system component of a drilling system, a telemetry system, and a method for detecting a signal current. The current sensor includes a magnetic body, at least one field coil positioned on the magnetic body, and at least one drive coil positioned on the magnetic body. The at least one field coil configured to detect a first magnetic field that passes within the magnetic body that is induced by the signal current carried by the drill system component when the current sensor is positioned in proximity to the drilling system component. The at least one drive coil configured to generate a second magnetic field. The current sensor is configured to modulate the second magnetic field such the at least one field coil detects the modulated magnetic field. | 11-26-2015 |
20160010446 | DETECTION OF DOWNHOLE DATA TELEMETRY SIGNALS | 01-14-2016 |
20160069180 | COMMUNICATION PROTOCOL IN DIRECTIONAL DRILLING SYSTEM, APPARATUS AND METHOD UTILIZING MULTI-BIT DATA SYMBOL TRANSMISSION - A system includes a transmitter for use in conjunction with a horizontal directional drilling system that transmits a multi-bit symbol stream that characterizes sensor symbols for receipt by an aboveground portable device. The portable device receives the symbol stream for aboveground recovery of the sensor signals. The transmitter can precisely place the symbol frequencies at least to avoid a noise environment, as well as to avoid powerline harmonics, and can utilize wave shaping for transmitted symbols at least to provide for transmission power control, spectral content control and wideband antenna matching. The receiver can measure the noise environment to identify the symbol frequencies used by the transmitter. The noise can be scanned at an incremental resolution across a wide frequency bandwidth for display or automatic symbol frequency selection. | 03-10-2016 |
20160115783 | Data Transmission System and Method for Transmission of Downhole Measurement-While-Drilling Data to Ground - Disclosed is a data transmission system and a method for transmission of downhole measurement data to the ground. The system includes a drill string mounted with a logging while drilling measurement tool, and a throw while drilling section, which accommodates a micromemory. The throw while drilling section includes a housing which is mounted outside of the drill string as a sleeve to form a clearance space therebetween; a control circuit; and a wireless transceiver. The throw while drilling section releases, under function of a micromemory release instruction transmitted by the control circuit, the micromemory loaded with the downhole measurement data to the ground. | 04-28-2016 |
20160138388 | ADVANCED DRILL STRING COMMUNICATION SYSTEM, COMPONENTS AND METHODS - A drill string communication system is described. An uphole transceiver can couple a signal onto the drill string at a power that is always greater that a selectable power for a downhole signal. Communication from a drill rig to an inground tool can be re-initiated using a maximum uphole transmit power of an uphole transceiver. A procedure can establish a new set of transmission parameters for a drill string signal to establish communication between the drill rig and the inground tool. The system can include a walkover locator that receives an active/inactive status-controlled electromagnetic locating signal. Responsive to a locating signal degradation, a reconfiguration command can modify the locating signal. The uphole transceiver and a downhole transceiver can automatically modify at least one parameter of a downhole signal. An uphole receiver can apply a compensation response to a transferred signal to compensate for a drill string channel transfer function. | 05-19-2016 |
20160160636 | Stripline Energy Transmission in a Wellbore - A downhole energy transmission system is described. The system can include a casing string having a number of casing pipe disposed within a wellbore, where the casing string has at least one wall forming a cavity. The system can also include a remote electrical device disposed within the cavity of the casing string at a first location. The system can further include a first stripline cable disposed on an outer surface of the casing string, where the first stripline cable transmits a first energy received from an energy source. The system can also include a second stripline cable disposed adjacent to the first stripline cable at the first location, where the second stripline cable is electrically coupled to the remote electrical device. | 06-09-2016 |
20170234123 | DETECTION OF DOWNHOLE DATA TELEMETRY SIGNALS | 08-17-2017 |