| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 340854300 |
Using a specific transmission medium (e.g., conductive fluid, annular spacing, etc.)
| 248 |
| 340853200 |
Diagnostic monitoring or detecting operation of communications equipment or signal
| 46 |
| 340853300 |
Selective control of subsurface equipment
| 19 |
| 340856300 |
Including particular sensor
| 16 |
| 340855400 |
Pulse or digital signal transmission
| 13 |
| 340853700 |
Repeater in subsurface link (e.g., cable, etc.)
| 13 |
| 340854100 |
With position or depth recording (e.g., line payout, equipment locator, etc.)
| 13 |
| 340855300 |
Multiplexed signals
| 6 |
| 340855800 |
Including specified power transmission feature or source (e.g., battery, etc.) | 4 |
| 20100102986 | SYSTEM AND METHOD TO REMOTELY INTERACT WITH NANO DEVICES IN AN OIL WELL AND/OR WATER RESERVOIR USING ELECTROMAGNETIC TRANSMISSION - The invention provides for electromagnetic transmission and reception used in detecting relative changes associated with nano devices existing within an oil reservoir. The system enables monitoring of the relative movement of the nano devices in the oil and/or water over a given area based on the incremental or relative changes of the intensity of the reflections over time. In one embodiment, a source of electromagnetic energy from an array of antennae transmitting immediately in the far field recharges a power source embedded in the nano devices. In another embodiment, the return signals from the nano devices maps the morphology of ensembles of nano devices. In yet another embodiment the transmission controls the movement of the nano devices and controls the function preformed by the nano devices relative to effecting changes in the well to improve production of oil. | 04-29-2010 |
| 20150084783 | GEOPHYSICAL SURVEY NODE ROLLING METHOD AND SYSTEM - A method for acquiring geophysical data includes connecting a power module comprising a data transfer port and a power transfer port to a geophysical data acquisition device to provide a geophysical sensing node and deploying the geophysical sensing node. While deployed, data is transferred from the geophysical data acquisition device to the power module via the data transfer port and power is transferred from the power module to the geophysical data acquisition device via the power transfer port. The method also includes retrieving the geophysical sensing node and replacing the power module with a newly charged power module to provide a newly charged geophysical sensing node, and deploying the newly charged geophysical sensing node. Corresponding systems are also disclosed herein. | 03-26-2015 |
| 20150377016 | WIRELESS POWER TRANSMISSION TO DOWNHOLE WELL EQUIPMENT - Wireless power transmission to downhole well installations is provided using acoustic guided Lamb waves and a tubular conduit (production tubing, casing) as the power transmission medium. A phased array of acoustic transmitters is present at the transmitting end (surface) and an array of acoustic receivers at the receiving end (downhole). Both transmitter and receiver arrays are coupled to the tubular conduit. Beamforming techniques are used along with power amplifiers to generate directional, high power and low frequency acoustic guided Lamb waves along the wellbore to transmit power over long distances. A downhole multi-channel acoustic energy collecting system receives the transmitted acoustic signal, and generates electrical power and stores the power in downhole electrical power storage. This power is used to operate downhole well equipment including sensing, control and telemetry devices. | 12-31-2015 |
| 20160108723 | Systems and Methods of Communication Signal Processing For Downhole Applications - A data communications system and associated method of high speed data communication for transferring data over a three phase power system are provided. Transmission of information is performed using either sequential or simultaneous multiple frequency transmissions. The frequencies are transmitted such that a combination of either simultaneous multiple frequencies or a pattern of frequency transmissions represents the transmitted data. Digital signal processing including time and frequency domain techniques are used to decode the transmitted data. | 04-21-2016 |
| 340855700 |
Modification of signal bandwidth, frequency, or circuit impedance at subsurface location | 4 |
| 20100039287 | Joint Channel Coding and Modulation For Improved Performance of Telemetry Systems - Jointly designed channel coding and modulation are used in an uplink telemetry system for transmitting a message signal from a bottomhole location to a surface location. A constant envelope quadrature-quadrature phase-shift keying may be used. | 02-18-2010 |
| 20100073190 | Telemetry Method and System for Subsurface Well and Reservoir and Logging Data - A method and system for transmitting data through a transmission medium between surface and subsurface transceivers. A surface transceiver and a subsurface transceiver are each configured to selectively transmit over a plurality of transmission channels, each transmission channel having a range of frequencies within the total frequency bandwidth. The surface transceiver is adapted to initialize a channel to determine at least one parameter affecting the current maximum data rate for transmission of information through the channel using a given transmission methodology. At least one of the channels uses carrierless phase/amplitude (CAP) modulation for its transmission methodology. The surface transceiver and the subsurface transceiver adapt to cooperatively periodically test a channel by transmission of a calibration signal from the subsurface transceiver to the surface transceiver. Control circuitry compares the received calibration signal with the calibration signal, responding to the result of the comparison to adjust at least one parameter as necessary to achieve an optimum rate of data transmission through said channel. | 03-25-2010 |
| 20100309019 | 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 least one piezoelectric element and at least one electrode that is without non-permanent joints. | 12-09-2010 |
| 20130135114 | REAL TIME DATA COMPRESSION AND TRANSMISSION - Systems, methods, and devices are provided for compressing a variety of signals, such as measured signals from a hydrocarbon operation, that may be stored and/or transmitted in compressed form. Segmentation tools and techniques are used to compress the signals. Segmentation techniques include breaking a signal into segments and representing the data samples of the signal as segment boundary points, which may reflect where changes occur in the signal, and segment parameters, which may be utilized to model the segmented data. Embodiments can be used in real-time or in batch modes. New data samples can influence previous segment boundary points and/or segment parameters in some cases. Systems may modify what has already been stored or displayed as a result in revising segmentation information based on analysis utilizing the new data samples. Embodiments may utilize different Bayesian analysis techniques including the use of prior probability distributions and maximum a posteriori analyses. | 05-30-2013 |
| 340853800 |
With orientation sensing of subsurface telemetering equipment (other than drilling equipment) | 4 |
| 20120218118 | METHOD AND APPARATUS FOR INITIALIZATION OF A WELLBORE SURVEY TOOL VIA A REMOTE REFERENCE SOURCE - A method and an apparatus are provided for determining an orientation of a wellbore survey tool at a first position with respect to a reference direction. At least one first signal is indicative of an orientation of a directional reference system with respect to the reference direction. The directional reference system is positioned at a second position spaced from the first position. At least one second signal is indicative of a relative orientation of the wellbore survey tool with respect to the directional reference system. The orientation of the wellbore survey tool at the first position is determined in response at least in part to the at least one first signal and the at least one second signal. | 08-30-2012 |
| 20130076526 | SYSTEM AND METHOD FOR CORRECTION OF DOWNHOLE MEASUREMENTS - A system for estimating downhole parameters includes: at least one parameter sensor disposed along a downhole component and configured to measure a parameter of one or more of a borehole and an earth formation and generate parameter data; and a processor in operable communication with the at least one parameter sensor, the processor configured to receive the parameter data and deformation data relating to deformation of the downhole component. The processor is configured to: generate a mathematical model of the downhole component deformation in real time based on pre-selected geometrical data representing the downhole component and the received deformation data; estimate, in real time, an alignment of the at least one parameter sensor relative to at least one of another parameter sensor and a desired alignment; and in response to estimating a misalignment of the at least one parameter sensor, correct the parameter data based on the misalignment. | 03-28-2013 |
| 20130127631 | METHOD AND APPARATUS FOR INITIALIZATION OF A TOOL CONFIGURED TO BE MOVED ALONG A WELLBORE - An apparatus for initializing a tool configured to be moved along a wellbore includes at least one directional reference system configured to provide data indicative of an orientation of the at least one directional reference system with respect to a reference direction. The apparatus further includes a mounting portion configured to be mechanically coupled to the tool such that the tool has a predetermined orientation with respect to the at least one directional reference system. | 05-23-2013 |
| 20160017703 | DRILL POSITIONING SYSTEM UTILIZING DRILL OPERATION STATE - A method, system, and non-transitory computer-readable storage medium for estimating pose of a drill are disclosed. The method may include receiving a location signal from a locating device, receiving a first signal indicative of an angular rate of the drill, and receiving a second signal indicative of an acceleration of the drill. The method may further include determining an operation state of the drill. The method may further include determining the pose of the drill based on the received location signal, first signal, second signal, and the determined operation state of the drill. | 01-21-2016 |
| 340853900 |
Including detail of subsurface signal storage (e.g., memory, recorder, register, etc.) | 2 |
| 20080224887 | 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 cable having a conductor pair which provides both power and data connectivity. The uppermost sensor pod is connected to a downhole telemetry and control module. The cables and pods use connectors to allow assembly, customization, repair, and disassembly on site. Each pod has an upper and a lower connector, a processor, and memory which is coupled to both the upper and the lower connectors. Each pod is capable of simultaneous and independent serial communications at each connector with the memory. The telemetry and control module is designed to query the pods to determine the system configuration. The telemetry and control module then simultaneously triggers all pods to acquire data, the pods storing the collected data locally in the memory. After data collection, the controller simultaneously signals the pods to immediately transfer data serially from the local memory to the next higher adjacent pod and receive data, if any, from the lower adjacent pod, if any, storing the received data in memory. The first data transferred from each pod is that data collected by its local sensors. Subsequent data originates from lower pods and is simply passed up the string of pods to the telemetry and control module. In other words, the pods communicate in a bucket brigade fashion. | 09-18-2008 |
| 20140333452 | Inter-Tool Communication Flow Control in Toolbus System of Cable Telemetry - Systems and methods for inter-tool communication in toolbus systems in cable telemetry. The systems can include downhole equipment deployable into a wellbore via a cable, The downhole equipment can include a toolbus, a toolbus master node including a buffer, and nodes operatively coupled to the toolbus master node via the toolbus. Each of the nodes includes a buffer. Of the one or more nodes, a sending node sends a message, and a receiving node receives the message via the toolbus master node and sends a buffer full message to the toolbus master node when the buffer of the receiving node is full. The toolbus master node sends a buffer full message to the sending node and the receiving node when the buffer of the receiving node is full, and buffers the message at the toolbus master node until the receiving buffer is not full. | 11-13-2014 |
| Entries |
| Document | Title | Date |
|---|
| 20080231466 | FACILITATING THE COMMUNICATION OF CONNECTIVELY DISSIMILAR WELL SERVICING INDUSTRY EQUIPMENT VIA A UNIVERSAL CONNECTION DEVICE - A wellbore servicing computing network, comprising a first component with a first interface coupled to a connection device, and a second component with a second interface coupled to the connection device; wherein the first component is capable of communication with the second component through the connection device, and wherein the first interface and the second interface are dissimilar; and wherein the first component is oilfield equipment and the second component is a computer. A network for conducting well treatment or well servicing operations, comprising a first node with a first communications interface coupled to a connection device, and a second node with a second communications interface coupled to the connection device, wherein the first node and second node are in communication with each other through the connection device, wherein the first communications interface and second communications interface are dissimilar, and wherein at least one node is coupled to well treating or well servicing equipment capable of assembling at a wellsite to perform a well treatment or well servicing operation. | 09-25-2008 |
| 20080309514 | Data and/or PowerSwivel - In one aspect of the invention, a swivel for use in a drilling operation comprises a body with a central bore adapted for threaded connection to a tool string component. At least one electrically conductive medium is rotationally supported within the bore and adapted to rotate with respect to an electrically conductive receiver that is rotationally fixed to and disposed within the body. The electrically conductive medium and the receiver are in electrical communication through an electrically conductive arm that is rotationally fixed to the electrically conductive medium and at least partially disposed within an electrically conductive fluid disposed within a reservoir. The reservoir comprises a rigid shape that is partially filled by the conductive fluid. A least one rotary seal is disposed intermediate the reservoir and the electrically conductive medium. The rigid shape of the reservoir is adapted to prevent the conductive fluid from accumulating around the rotary seal. | 12-18-2008 |
| 20090085767 | Microwave Linked Laser Control System and Apparatus for Drilling and Boring Operations - A laser control system and apparatus for guiding a drilling or boring operation during a trenchless technology implementation. In most if not all trenchless technology applications, direction of the pipe or utility structure through the earth is of utmost importance. Proper directional guidance throughout the trenchless technology implementation ensures not only that the resulting utility infrastructure is placed properly, but also ensures that the trenchless technology operation, does not hit or otherwise damage (such as through vibrations) existing utilities and other underground objects. The laser control system and apparatus of the present invention comprises a laser, a housing having a laser sight, a camera in optical communication with the laser sight a microwave transmitter having an antenna, with the transmitter being operatively coupled to the camera, and a microwave receiver. | 04-02-2009 |
| 20090115623 | Bidirectional Telemetry Apparatus And Methods For Wellbore Operations - A system and method for communicating data between a downhole tool and a surface controller is provided that comprises a rotating drill string extending in a borehole and having a downhole telemetry module disposed proximate a bottom end thereof and transmitting a first signal across a telemetry channel. A surface telemetry module is disposed proximate a top end of the rotating drill string and is adapted to receive the first signal transmitted by the downhole telemetry module across the transmission channel. The surface telemetry module has a radio frequency transmitter disposed therein for transmitting a second signal related to the first signal. A stationary communication module has a radio frequency receiver adapted to receive the second signal. | 05-07-2009 |
| 20090153354 | Oilfield Area Network Communication System and Method - A method of conducting a well treatment service job, comprising assembling an oilfield communication network comprising a plurality of mobile terminals distributed across a plurality of well sites and a plurality of base transceiver stations, wherein some of the mobile terminals are coupled to each other in wireless communication by the base transceiver stations; preparing a well for the well treatment service job; performing one or more well treatment steps; collecting one or more data parameters associated with the well treatment service job; and communicating the one or more data parameters from at least a first one of the mobile terminals via the oilfield communication network. | 06-18-2009 |
| 20090167556 | Method and System for Transmitting Borehole Image Data - A method of transmitting borehole image data from a borehole location to a remote location includes obtaining a set of image data describing formation surrounding a borehole using a logging tool at a selected depth or range of depths in the borehole, extracting one or more image features from the set of image data downhole, and transmitting a representation of the extracted image features to the surface. | 07-02-2009 |
| 20090184841 | METHOD AND SYSTEM OF DATA ACQUISITION AND TRANSMISSION - A system and method of data acquisition and transmission for use in a channel for conveying liquid and/or gas, such as a wellbore. The system includes one or more of data acquisition modules for acquiring data relating to conditions adjacent the module and transmitting the data to a terminal collection station or adjacent data acquisition module via an electromagnetic signal. Each data acquisition module is configured to transmit the signal such that an element of the channel adjacent the data acquisition module acts as a waveguide. | 07-23-2009 |
| 20090212969 | Underwater Communications Using RF - A subsea production system adapted for wireless communication so that production tree operation can be controlled locally wirelessly from a workover umbilical or remotely controlled vehicle. The production system includes a wellhead assembly and an umbilical termination connected to an umbilical that extends to above the sea surface. Dedicated wireless communication devices can be attached to one or both of the wellhead assembly and the umbilical termination. The wireless communication devices can include a radio frequency modem, a sonar device, an infrared communication device, a light emitting diode, an optical modem, and combinations thereof; the wireless communication can include radio frequency waves, acoustic waves, and electromagnetic waves. A subsea control module can be included for controlling/actuating devices in or associated with the production system. The subsea control module can be adapted for wireless communication. | 08-27-2009 |
| 20090295597 | SYSTEM AND METHOD FOR REMOTELY CONTROLLING DOWN-HOLE OPERATIONS - A system for remote control of operation control elements that are arranged in a well to control recovery of gas and/or oil from the well. A first system part is located outside the well and connected to a second system part that is located in the well and operatively connected to the operation control elements. All semiconductor components are housed in the first system part. The second system part houses electromechanical components that actuate the operation control elements upon command from the first system part. A method for remote control of down-hole operation control elements in an oil and/or a gas well completion. A first system part located outside the well is equipped with all semiconductor components that are included in the system. A second down-hole system part is equipped with electromechanical components that are actuated from the first system part for actuation of the operation control elements. | 12-03-2009 |
| 20100033344 | ELECTRIC DIPOLE TRANSMISSION SYSTEM - An electric dipole transmission system includes an uphole dipole assembly adapted for receiving downhole telemetry data. The uphole dipole assembly includes a gap sub, an electric dipole transmitter, a battery stack and a wireline receiver. A short hop receiver assembly is connected to the lower end of the uphole dipole assembly by a wireline. A downhole dipole assembly operatively connected to the uphole dipole assembly includes a short hop transmitter, a battery stack and a sensor assembly. | 02-11-2010 |
| 20100109905 | Deep MWD Resistivity Measurements Using EM Shielding - Structure for deep MWD resistivity measurements suitable for both geo-steering and measurements ahead of the drill bit is disclosed. Alternating current is transmitted through a loop and an induction signal is measured by a two-coil bucking receiving system placed at some distance from the transmitter. To further reduce a parasitic effect of the currents in the pipe, a conductive copper shield wrapping around the pipe is used. The length of the shield is about one and one-half to two times longer than the longest transmitter/receiver spacing of the structure. The transmitter/receiver system is located in the center of the described electromagnetic shield. | 05-06-2010 |
| 20100117854 | POWER SUPPLY SYSTEM FOR DOWNHOLE NETWORK - An electric system especially for measurement and control in an oil/gas well using transmission of electric signals and supply of electric power. The system is provided with a current loop ( | 05-13-2010 |
| 20100194584 | WELLBORE COMMUNICATION, DOWNHOLE MODULE, AND METHOD FOR COMMUNICATING - A wellbore communications system comprising a surface computing unit. The surface computing unit comprises a processing module and a communications module, one or more downhole modules arranged within the wellbore, and a wireless communications channel communicatively coupling one or more the downhole modules and the surface computing unit. The surface computer unit and one or more of the downhole modules are configured to encode data with an iterative code prior to transmission on the wireless communications channel. | 08-05-2010 |
| 20100201540 | 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 system and the second telemetry system may transmit data regarding the tools and/or drilling conditions from the tools to a surface location simultaneously. The first telemetry system or the second telemetry system may communicate with the surface location if communication using the other telemetry system is interrupted. The first telemetry system and the second telemetry system may have a master/slave relationship so that data requests from a specific telemetry system do not interfere with data requests from the other telemetry system. | 08-12-2010 |
| 20110001633 | Measurement Device and Associated Method for use in Frequency Selection for Inground Transmission - A portable device and associated method are described for use with a system in which a locating signal is transmitted from within the ground during an operational procedure. The locating signal includes a transmission frequency that is selectable from a group of discrete transmission frequencies in a frequency range and the region includes electromagnetic noise that can vary. The portable device includes a receiver having a bandwidth that includes the transmission frequency range and is operable for measuring the electromagnetic noise in the transmission frequency range to establish a frequency content of the electromagnetic noise for use in selecting one of the discrete transmission frequencies that is subsequently transmitted as the locating signal during the operational procedure. The locating signal can be transmitted from a boring tool, a pullback arrangement or an inground cable. A predicted maximum operational depth for a transmitter can be determined prior to the operational procedure. | 01-06-2011 |
| 20110309948 | SYNCHRONIZATION BETWEEN DEVICES - The present disclosure relates to a method to determine a clock signal when separate clocks are used. In one embodiment, a disciplined clock system comprising an update subsystem and a synthesis subsystem is provided. A first clock phase estimate is provided to the update subsystem and used, along with the update subsystem, to determine a frequency offset estimate and a phase offset estimate. The clock signal is determining using the frequency offset estimate, the phase offset estimate, and the synthesis subsystem. Alternatively, two clocks can be synchronized by generating a signal associated with a first clock; modulating the signal; transmitting the modulated signal; receiving the modulated signal by a receiver associated with a second clock; correlating the received signal; determining the time of arrival of the received signal; determining the time difference between the two clocks; and synchronizing the two clocks. | 12-22-2011 |
| 20120169509 | METHOD AND DEVICES FOR TERMINATING COMMUNICATION BETWEEN A NODE AND A CARRIER - The present disclosure relates to apparatuses and methods for terminating communication on a communication line between a carrier and at least one node located at a subsurface location. The apparatus may include a control member configured to initiate termination of communication in response to a controlled signal. The apparatus may also include a communication linkage configured to terminate the communication in a manner that cannot be remotely restored in response to the control member. The apparatus may also include a power source to maintain power to the communication linkage termination operation. The apparatus may be configured to use energy from the communication line to cause the communication linkage to terminate communication. The apparatus may be configured to use a communication linkage that is at least partially consumable. The method includes the use of the apparatus. | 07-05-2012 |
| 20120188090 | SYSTEM AND METHOD FOR GENERATION OF ALERTS AND ADVICE FROM AUTOMATICALLY DETECTED BOREHOLE BREAKOUTS - A method for generating an alert or advice for drilling a borehole penetrating an earth formation includes: receiving with a processor a borehole image from a downhole tool disposed at a drill tubular drilling the borehole; detecting a first breakout and a second breakout shifted approximately 180° apart from the first breakout if breakouts are in the image using a method for detecting breakouts implemented by the processor; and generating an alert or advice with the processor if the first and second breakouts are detected. | 07-26-2012 |
| 20120194351 | Downhole Sensor MODBUS Data Emulator - In order to emulate the inputs from a DHS, RTD type sensors are typically employed, externally heated, and the input provided into an interface unit. At best such an approach provides a stop-gap solution that is cumbersome and not reliably repeatable. Such temporary inputs seldom provide the equivalent communications protocol verification between the surface controller of the DHS and the external communications device. Each DHS commercially available also uses different MODBUS register addresses for the requested data, as well as a variation in the number of parameters expected from the DHS itself, ranging from 3 to 7, depending on the vendor of choice. In this new design, a number of potentiometers are used to provide a variable signal level to the microprocessor, acting as variable parameters from the downhole sensor, the settings of which can be repeated for reliable test results. | 08-02-2012 |
| 20120229293 | METHODS AND SYSTEMS FOR BOREHOLE TELEMETRY - Methods and systems for borehole telemetry utilizing a tool configured or designed for deployment in a borehole traversing a subterranean formation. The tool includes a downhole telemetry module; a surface telemetry module; and a datalink between the downhole and surface modules configured or designed for transferring data over two or more data communication channels, wherein the transferred data comprises coding at a transmitter to increase the signal to noise ratio (SNR) of the data. | 09-13-2012 |
| 20120274475 | Automated Well Control Method and Apparatus - A drilling control system monitors and compares drilling and completion operation sensor values and autonomously acts in response to conditions such as a kick or surge. Sensors in various combinations may monitor return fluid flow rate, fluid inflow rate, wellhead bore pressure, temperature of returning fluid, torque, rate of penetration and string weight change. The control system has corresponding control logic to monitor, warn and act based on the sensor inputs. The actions may include the warning of support personnel, closing an annular blowout preventer, shearing drill pipe using a ram shear, pumping heavier fluid down choke and kill lines, disconnecting the riser or various other actions. | 11-01-2012 |
| 20120274476 | VIRTUAL WHITE LINES FOR DELIMITING PLANNED EXCAVATION SITES - Method and apparatus for facilitating detection of a presence or an absence of at least one underground facility within a dig area. At least one marked-up digital image of a geographic area including the dig area, the image including at least one indicator to delimit the dig area, is electronically processed by converting the at least one indicator to a plurality of geographic coordinates representing the delimited dig area. Information relating to a locate request ticket identifying the dig area to be excavated is electronically transmitted and/or electronically stored, wherein the locate request ticket includes image data and non-image data associated with the dig area. The image data includes the at least one marked-up digital image of the geographic area surrounding the dig area, and the non-image data includes the plurality of geographic coordinates representing the delimited dig area. | 11-01-2012 |
| 20130021166 | SYSTEM AND METHOD FOR BOREHOLE COMMUNICATION - To produce a desired telemetry signal, the desired telemetry signal is first determined and then decomposed into two or more component signals. For each component signal, commands are sent to an individual modulator. The individual modulators each produce individual signals according to their received commands. The individual signals from each individual modulator are combined to produce the desired telemetry signal, or the individual signals from each individual modulator are allowed to combine to produce the desired telemetry signal. A telemetry system that produces such desired telemetry signals includes an uplink transmitter/receiver pair, a downlink transmitter/receiver pair, or both pairs, wherein each uplink transmitter and each downlink receiver is disposed in a wellbore. Two or more modulators are provided, as is a telemetry signal generator having a processor capable of decomposing a desired telemetry signal into two or more component signals and issuing commands to control the two or more modulators. | 01-24-2013 |
| 20130038463 | Interactive Display of Results Obtained from the Inversion of Logging Data - An interactive display of results obtained from the inversion of logging data is produced by obtaining and inverting the logging data using a Monte-Carlo inversion. An interactive plot having a percentile scale plotted against a location parameter is produced and a particular percentile is selected using the interactive plot. A cross-section plot for the particular percentile using the results of the Monte-Carlo inversion is produced. The particular percentile can be a curve representing a best-fit solution or a polyline representing selected solutions. Background color/shading can be displayed on the interactive plot to indicate user-defined constraints have been applied. Uncertain features can be plotted on a corresponding cross-section display using fading. Clusters of solutions that are substantially equally likely, given the measurements at a particular drill location, can be identified and plotted. A cross-section constructed from the layered models belonging to a particular cluster can be overlaid on another cross-section. | 02-14-2013 |
| 20130076525 | SYSTEM AND METHOD FOR REMOTE WELL MONITORING - Systems and methods for remote monitoring of a wellsite operation may include receiving login information from a user and displaying a wellsite listing. The user may select at least one wellsite and may provide input regarding at least one parameter of interest for the at least one wellsite. A server may receive data regarding the at least one wellsite via a transceiver from a sensor disposed at a wellsite measuring the at least one parameter of interest. The data regarding the at least one parameter of interest may be transmitted as a dashboard after creation and rendering of teh dashboard at a server. The dashboard may be displayed via a wellsite information display module on a personal mobile device. The display of the at least one parameter of interest is customizable by the user or administrator of the system. | 03-28-2013 |
| 20130099934 | Well Cellar High Fluid Level Alarm - A well cellar high fluid level alarm includes a control box providing a water-tight enclosure and a alarm control circuitry disposed within the control box. An audible alarm indicator is operably connected to the alarm control circuitry. A visual alarm indicator is operably connected to the alarm control circuitry. A float switch is operably connected to the alarm control circuitry. An electrical power cable is operably connected to the control circuitry and provides electrical power thereto. A control switch is operably connected to the control circuitry and is operable to turn the control circuitry on and off. Operational indicator lamps are operably connected the control circuitry and operates to indicate an on or off state of the control circuitry. The control circuitry operates to operate the audible alarm indicator and the visual alarm indicator upon the float switch sensing a high fluid level. | 04-25-2013 |
| 20130106614 | SYNCHRONIZATION BETWEEN DEVICES | 05-02-2013 |
| 20130154844 | METHODS FOR CLOCK SYNCHRONIZATION IN WELLBORE INSTRUMENTS - A method for synchronizing a clock in a device at the Earth's surface with a device disposed in a wellbore includes generating a time datum for a signal generated at at least one of the surface and in the wellbore proximate an end of the pipe string. A time delay is determined between detection of the signal at the at least one repeater and retransmission of the signal from the at least one repeater. The time datum is appended with a signal corresponding to the time delay. The retransmitted signal is detected at the other of proximate the end of the pipe string and at the surface. | 06-20-2013 |
| 20130181843 | 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 complex variable domain to generate a plurality of complex variable domain segments with an in-phase component vector I and a quadrature component vector Q; calculating a real amplitude vector A from the I and the Q vectors; filtering interferers in the amplitude vector A for each complex variable domain segment to generate a filtered amplitude vector Ã; recalculating an amplitude of the amplitude vector A using the filtered amplitude vector à to generate an output amplitude vector Â; scaling the I and the Q vectors by a factor Â/A to generate an output in-phase component vector I′ and an output quadrature component vector Q′; and transforming I′ and Q′ into the time domain to provide an interference-reduced output signal in the time domain. | 07-18-2013 |
| 20130229286 | SAFETY BARRIER ALERT - At least some of the illustrative embodiments are a non-transitory machine-readable storage medium including executable instructions that, when executed, cause one or more processors to receive drilling rig safety barrier data based on conditions of safety barriers in one or more drilling rigs. The one or more processors are further caused to identify, based on the drilling rig of safety barrier data, an impending invalidation of at least one of the safety barriers. The one or more processors are further caused to identify, based on the impending invalidation, one or more profiles for alert, and output, based on the one or more profiles, an alert of impending safety barrier invalidation. | 09-05-2013 |
| 20130234859 | Method for Transmission of Data from a Downhole Sensor Array - A method for transmission of data from a downhole sensor array. A continuous unidirectional data stream is sent from the downhole sensor array to two or more different types of data transmitters at the same time. One or more of the two or more different types of data transmitters is then activated to transmit the data from the downhole sensor array. If desired, all of the different types of data transmitters may be activated to contemporaneously transmit the data from the downhole sensor array | 09-12-2013 |
| 20130300568 | CONTROL PANEL, AND DIGITAL DISPLAY UNITS AND SENSORS THEREFOR - According to one aspect, a digital display unit includes a microcontroller to process digital information received from one or more sensors, a display, and a switch in electrical communication with the microcontroller so that the microcontroller displays an output on the display that is specific to a type of sensor. The type of sensor may be selected from a position sensor, a pressure sensor, and a stroke counter. The digital display unit may be part of a choke control panel. The microcontroller and the display may be disposed in an enclosure, and an electrical power source may be disposed in the enclosure to supply electrical power to the microcontroller and the one or more sensors. A digital hydraulic choke position sensor assembly and a digital pressure sensor assembly are also described, one or both of which may be used in a system for drilling an oil or gas well. | 11-14-2013 |
| 20130307700 | Downhole Information Storage and Transmission - Apparatus and methods for downhole information storage and transmission are disclosed herein. An example method disclosed herein includes losslessly compressing at least a portion of information received from a portion of a downhole tool disposed in a wellbore. The information is compressed via a processor disposed on the downhole tool and communicatively coupled to the portion of the downhole tool. The example method further includes transmitting at least a portion of the compressed information to a receiver disposed at or near a surface of Earth. | 11-21-2013 |
| 20130314241 | OPTIMIZATION VISUALIZATION USING NORMALIZED ACHIEVEMENT VARIABLES - The present disclosure describes various systems and methods for creating and presenting optimization visualizations that use normalized achievement variables. At least one illustrative method includes defining achievement functions that each operates on at least one of several achievement variables (each of the achievement variables representing a characteristic of a physical object or process), and transforming value ranges for at least two achievement variables into corresponding achievement level ranges by applying at least one of the achievement functions to the value ranges of the achievement variables (the achievement variables being a function of at least one common control variable). The method further includes combining the corresponding achievement level ranges to produce a combined achievement level range, and presenting a visual representation of the combined achievement level range to a user, enabling the user to select value ranges for the common control variable. | 11-28-2013 |
| 20130321164 | ASYNCHRONOUS DS-CDMA RECEIVER - Methods, apparatus, and systems are provided for collecting data from a plurality of downhole sensors located in a wellbore utilizing an asynchronous direct-sequence code division multiple access (DS-CDMA)-based communication scheme. One example method includes receiving a superposed signal comprising asynchronous signals from the downhole sensors, wherein a spreading sequence has been applied to data generated by each of the downhole sensors to form each of the asynchronous signals; sampling the received superposed signal; and processing the sampled superposed signal using decorrelation to determine the data from at least one of the downhole sensors before the spreading sequence was applied. | 12-05-2013 |
| 20140055277 | 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 system and the second telemetry system may transmit data regarding the tools and/or drilling conditions from the tools to a surface location simultaneously. The first telemetry system or the second telemetry system may communicate with the surface location if communication using the other telemetry system is interrupted. The first telemetry system and the second telemetry system may have a master/slave relationship so that data requests from a specific telemetry system do not interfere with data requests from the other telemetry system. | 02-27-2014 |
| 20140077963 | SYSTEM AND METHOD FOR GENERATING PROFILE-BASED ALERTS/ALARMS - A method of processing parameter data includes: receiving at least one alarm value for a selected interval, the at least one alarm value generated based on a comparison of estimated parameter values at one or more respective interval points with limits at the respective interval points; performing, by a processor, a statistical analysis of the at least one alarm value over the selected interval; and generating an alarm indication associated with the selected interval, the alarm indication corresponding to a result of the statistical analysis. | 03-20-2014 |
| 20140132420 | Apparatus and Method for Multi-Mode and Multi-Depth Resistivity Measurements - An apparatus for measuring formation resistivity includes a tool body and multiple transceivers deployed on the tool body. Each transceiver includes a switch to control the transceiver to switch between a transmitter mode and a receiver mode. At least one transceiver acting in the transmitter mode transmits compensating signals. At least one transceiver acting in the transmitter mode transmits measuring signals. At least a pair of transceivers acting in the receiver mode which are positioned on two sides of the transceiver transmitting compensating signals and substantially symmetrical with respect to it receives the compensating signals and the measuring signals. The pair of transceivers acting in the receiver mode measures the amplitudes and phases of the compensating signals and the measuring signals in a sequential order and computes a compensated amplitude ratio and a compensated differential phase accordingly. A corresponding method for measuring formation resistivity is also provided. | 05-15-2014 |
| 20140139349 | Systems and Methods for Detecting and Communicating Failure of Integral Surge Suppression in Drive Systems for Downhole Equipment - Systems and methods for providing notifications to monitoring systems that are remotely located from a well upon failure of a surge suppressor in a drive system for equipment used in the operation of the well. In one embodiment, an ESP system is installed in a well. A VSD having a surge suppressor is coupled between a power source and the ESP system. The surge suppressor is monitored to detect a failure of its surge suppression capabilities. In response to detecting a failure, a notification is provided to a monitoring system that is located remotely from the well. The notifications may be provided via phone call, email, text message or other means. The surge suppressor may also provide a local indication of the failure. The VSD may be configured to continue operation despite the failure of the surge suppression capability. | 05-22-2014 |
| 20150354349 | COMPUTER-IMPLEMENTED METHOD, DEVICE, AND COMPUTER-READABLE MEDIUM FOR VISUALIZING ONE OR MORE PARAMETERS ASSOCIATED WITH WELLS AT A WELL SITE - A computed-implemented method, a device, and a non-transitory computer readable storage medium are disclosed that can perform a method of visualizing sensor data obtained from a plurality of wells at a well site. The method can include acquiring sensor data from one or more sensors operable to measure conditions of subsystems of each well in the plurality of wells at the well site; determining, by a processor, a visual representation of the sensor data; and causing the visual representation of the sensor data to be displayed in a matrix layout on a visual display, wherein the matrix layout comprises an end row representing a current value of the sensor data and one or more intermediate rows representing a past value of the sensor data. | 12-10-2015 |
| 20160084076 | COMMUNICATION BETWEEN DOWNHOLE TOOLS AND A SURFACE PROCESSOR USING A NETWORK - A system for communicating with subsurface components includes: a surface host connected to a subsurface location; a subsurface host connected to the surface host by a communication link, the subsurface host configured to communicate with the surface host using a communication protocol; and a plurality of tools configured to be disposed in a borehole, the plurality of downhole tools communicatively coupled to the subsurface host via a communication network. The communication network is divided into a plurality of network subsets, each network subset of the plurality of network subsets including one or more downhole tools, all of the one or more downhole tools configured to communicate using a common protocol, each network subset including a network device configured to receive data and translate the data to the common protocol, the common protocol of one network subset being different than the common protocol of at least one other network subset. | 03-24-2016 |
| 20160146000 | METHODS AND APPARATUS FOR GENERATING ELECTROMAGNETIC TELEMETRY SIGNALS - An electromagnetic telemetry signal generating assembly comprises a first section of drill string, a second section of drill string, a gap sub configured to insulate the first section from the second section, and a power source configured to provide a first voltage to a control circuit. The control circuit is configured to drive a second voltage between the sections of drill string. The gap sub provides a gap of at least 12 inches (30 cm). The second voltage may be different than the first voltage. | 05-26-2016 |
