Automatic Control Patents (Class 175/24)
  • Patent number: 9745842
    Abstract: Systems, methods, and computer-readable media for planning a well are provided. The method includes defining a well in a representation of a domain, and identifying an offset well in the domain that is within a threshold distance of the well. The method also includes deconstructing the offset well into a plurality of offset bases, and determining that a first offset base of the plurality of offset bases is within the threshold distance of the well. The method further includes determining that a second offset base of the plurality of offset bases is not within the threshold distance of the well, and performing a proximity computation for the well with respect to the first offset base but not the second offset base.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 29, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Vivek Jain
  • Patent number: 9677882
    Abstract: An apparatus and method for determining the diameter of a pipe from a remote location is disclosed. A measuring assembly, including a reference device and an imaging device, is inserted into a pipe from a remote location. The reference device is inflatable to a predetermined and known diameter within the pipe. The imaging device acquires imaging data of the reference device within the pipe and the imaging data is used to determine the diameter of the pipe by comparing the predetermined diameter of the reference device with the diameter of the wall of the pipe. The diameter of the pipe is then used to properly choose a liner assembly of the same diameter to repair the wall of the pipe. The liner tube may include a bladder and liner tube, which is saturated with a curable resin, to repair the wall of the pipe.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 13, 2017
    Assignee: LMK TECHNOLOGIES, LLC
    Inventor: Larry W. Kiest, Jr.
  • Patent number: 9670767
    Abstract: A method of monitoring drilling conditions includes acquiring raw data from drilling equipment and conditioning the raw data to generate conditioned data. Conditioning the raw data includes removing outlier data values and/or filtering out noise. The method further includes processing the conditioned data to generate output values. Processing the conditioned data includes determining a slope of a first set of data values of the conditioned data. The first set of data values correspond to a regression length of time. Processing the conditioned data further includes determining whether a difference between the slope of the first set of data values and a median slope determined over a median window of time exceeds a threshold. The method also includes generating an alarm based on the output values to indicate an abnormal drilling condition.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 6, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Carlos A. Hernandez, Ray E. Johnston, Kelli M. Rettew, Janice S. Mathew, Steven J. Shipula, Tony Gomez
  • Patent number: 9663993
    Abstract: A directional drilling steering system is configured to direct a tubular sleeve arranged at the bottom of a drill string adjacent the drill bit at a selected tilt angle with respect to the longitudinal axis of the uphole drill string and at a selected azimuth. Tilt angle can be achieved by axial movement of one or more pistons in engagement with the downhole tubular sleeve. Azimuth can be achieved by axial movement of the pistons or by rotation of the drill string. The movement of the downhole sleeve along the deviated path causes movement of the drill bit shaft and the drill bit coupled thereto.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 30, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Bhargav Gajji, Puneet Agarwal, Rahul Ramchandra Gaikwad
  • Patent number: 9631446
    Abstract: A jarring tool operable for coupling within and generating an impact imparted to a downhole tool string. The jarring tool includes an upper housing, a lower housing, and a shaft coupled with the lower housing and extending into the upper housing. The upper housing moves axially relative to the lower housing along the shaft. The jarring tool also includes an accelerometer for detecting acceleration caused by an impact generated by movement of the upper housing away from the lower housing until corresponding impact features of the upper and lower housings collide.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: April 25, 2017
    Assignee: Impact Selector International, LLC
    Inventor: Jason Allen Hradecky
  • Patent number: 9631445
    Abstract: A downhole-adjusting impact apparatus (DAIA) mechanically coupled between opposing first and second portions of a tool string, wherein: the tool string is conveyable within a wellbore extending between a wellsite surface and a subterranean formation; the first tool string portion comprises a first electrical conductor in electrical communication with surface equipment disposed at the wellsite surface; the DAIA comprises a second electrical conductor in electrical communication with the first electrical conductor; and the DAIA is operable to: detect an electrical characteristic of the second electrical conductor; impart a first impact force on the second tool string portion when the electrical characteristic is detected; and impart a second impact force on the second tool string portion when the electrical characteristic is not detected, wherein the second impact force is substantially greater than the first impact force.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: April 25, 2017
    Assignee: Impact Selector International, LLC
    Inventor: Jason Allen Hradecky
  • Patent number: 9617851
    Abstract: Systems, devices, and methods for evaluating cuttings entrained in a downhole fluid in a borehole intersecting an earth formation. Methods may include using at least one sensor to produce information responsive to a reflection of an emitted wave from downhole cuttings in the borehole, wherein the information is indicative of a parameter of interest relating to the downhole cuttings; and processing the information using at least one processor to estimate the parameter of interest. Methods may include using the at least one acoustic sensor to produce corresponding information from each of a plurality of azimuthally distributed orientations about a bottom hole assembly (BHA); and using the at least one processor to estimate from the information from each of the orientations an azimuthal variation of the parameter of interest. The at least one sensor may include acoustic sensors, electromagnetic sensors, and/or optical sensors.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: April 11, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: John Dahl, Christopher J. Morgan, Michael E. Gillen
  • Patent number: 9605507
    Abstract: A method of maintaining a desired temperature at a location in a well can include adjusting fluid circulation parameters, thereby reducing a difference between an actual temperature at the location and the desired temperature. A well system can include at least one sensor, an output of the sensor being used for determining a temperature at a location in a well, and a hydraulics model which determines a desired change in fluid circulation through the well, in response to the temperature at the location being different from a desired temperature at the location. Another method of maintaining a desired temperature at a location in a well can include adjusting a density, solids content and/or flow rate of a fluid circulated through the well, thereby urging a temperature at the location toward the desired temperature.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: March 28, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James R. Lovorn, Derrick W. Lewis, Mohamed Sati, Emad Bakri, Clive D. Menezes
  • Patent number: 9582764
    Abstract: Systems and methods for real-time risk prediction during drilling operations using real-time data from an uncompleted well, a trained coarse layer model and a trained fine layer model for each respective layer of the trained coarse layer model. In addition to using the systems and methods for real-time risk prediction, the systems and methods may also be used to monitor other uncompleted wells and to perform a statistical analysis of the duration of each risk level for the monitored well.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: February 28, 2017
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Serkan Dursun, Tayfun Tuna, Kaan Duman
  • Patent number: 9556679
    Abstract: A bottom hole assembly avoids damaging vibrations that can develop during directional drilling with a rotary steerable system. The assembly has a drill bit, a first collar that rotates with the bit, a rotary steerable tool that controls the bit's trajectory, and a second collar that rotates with the drill string. The first collar between the bit and the tool defines a bend that deflects the bit from the first collar's axis. During operation, this bend causes portion of the assembly to engage the borehole wall to inhibit counterclockwise (CCW) bit whirl by promoting clockwise whirl in the assembly, generating friction against the borehole wall, and dampening vibrations. By inhibiting CCW bit whirl, other damaging vibrations such as CCW whirl in the drill string can also be prevented up the borehole. Alternatively, only the second collar between the tool and the drill string may define the bend, or both collars can define bends.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: January 31, 2017
    Assignee: Precision Energy Services, Inc.
    Inventors: Elaine Larronde, Daryl Stroud, Jeff Johnson, Mike Spencer
  • Patent number: 9546516
    Abstract: According to one embodiment, a method for selecting drilling components is disclosed. The method may include determining properties of drilling components. The drilling components may include a bottom hole assembly (BHA) and drilling fluid. The properties of drilling components may include BHA properties and drilling fluid properties. The method may also include determining a total organic carbon content in a rock formation unit using a computer. The method may further include determining a pyrite content in the rock formation unit using the computer. The method may still further include determining whether the BHA and the drilling fluid are incompatible for use in the rock formation, based upon the BHA properties, drilling fluid properties, the total organic carbon content, and the pyrite content.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: January 17, 2017
    Assignee: KUWAIT OIL COMPANY (K.S.C.)
    Inventors: Mihira Narayan Acharya, Qasem Mohammad Dashti, Ealian Husain Al-Anzi
  • Patent number: 9540910
    Abstract: In one aspect, the present invention relates to a drilling-information-management system. The drilling-information management system includes a probe assembly disposed on a drill rod, a first computer interoperably coupled to the probe assembly via a conductor disposed in a drill rod, and a second computer in communication with the first computer. The second computer includes a barcode scanner. The drilling-information management system includes a database in communication with the second computer. Drilling-project data is transferred from the database to the second computer and calibration data is transferred from the second computer to the first computer. The first computer executes a drilling plan according to the drilling-project data.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: January 10, 2017
    Assignee: REI, Inc.
    Inventors: Forrest Paul Schumacher, Jeffrey J. Schwoebel, Michael J. Hardin, Daniel J. Brunner
  • Patent number: 9534446
    Abstract: A method of drilling a subterranean well from a surface location. The method comprises estimating a target formation depth, estimating a target formation dip angle and calculating a target line that creates a top and bottom of the target formation that forms a first projection window. The method further includes drilling within the first projection window, transmitting information from the subterranean well and projecting a target deviation window. The method can further comprise ceasing the drilling of the well and performing a well survey so that well survey information is generated. The method can then include estimating a formation dip angle with the well survey information and rig surface equipment monitoring data, calculating a target line that creates a revised top and bottom of the target formation that forms a second projection window, and drilling within the second projection window.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: January 3, 2017
    Inventor: Danny T. Williams
  • Patent number: 9534485
    Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to acquire input data to determine properties of a formation, using a combination of down hole transmitters and receivers, to select a portion of the input data using a formation model chosen from a plurality of down hole tool response models in a formation model database, based on a valid sensitive range for the bed boundary distance and a greatest signal-to-noise ratio (SNR), and to solve for at least resistivity formation parameters in the properties using the chosen formation model and the selected portion of the input data. The database may be updated with boundary distance and the resistivity formation parameters. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: January 3, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Wenshan Yu, Yumei Tang, Michael S. Bittar
  • Patent number: 9435187
    Abstract: A method for estimating drilling parameters for drilling a borehole in the earth includes: drilling the borehole with a drill string having a mud motor and a drill bit; constructing a mathematical model of a system including the drill string, the mud motor, and a borehole geometry; calculating a mud motor lateral excitation force imposed on the drill string by the mud motor for one or more combinations of drill string rotational speed and mud motor rotational speed; calculating lateral motion of the drill string and a force imposed on the drill string at positions along the drill string for the one or more of combinations using the model and the excitation force; selecting a range of combinations of drill string rotational speed and mud motor rotational speed that result in the force imposed upon the drill string being less than a threshold value; and displaying the range of combinations.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: September 6, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Andreas Hohl, Bernhard Meyer-Heye, Hanno Reckmann
  • Patent number: 9404356
    Abstract: A system and method for surface steerable drilling are provided. In one example, the system receives feedback information from a drilling rig and calculates an estimated position of a drill bit in a formation based on the feedback information. The system compares the estimated position to a desired position along a planned path of a borehole. The system calculates multiple solutions if the comparison indicates that the estimated position is outside a defined margin of error relative to the desired position. Each solution defines a path from the estimated position to the planned path. The system calculates a cost of each solution and selects one of the solutions based at least partly on the cost. The system produces control information representing the selected solution and outputs the control information for the drilling rig.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 2, 2016
    Assignee: MOTIVE DRILLING TECHNOLOGIES, INC.
    Inventors: Todd W. Benson, Teddy Chen
  • Patent number: 9366129
    Abstract: Systems and methods are provided for expert systems for well completion using Bayesian decision networks to determine well completion recommendations. The well completion expert system includes a well completion Bayesian decision network (BDN) model that receives inputs and outputs recommendations based on Bayesian probability determinations. The well completion BDN model includes a treatment fluids section, a packer section, a junction classification section, a perforation section, a lateral completion section, and an open hole gravel packing section.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: June 14, 2016
    Assignees: Saudi Arabian Oil Company, The Texas A&M University System
    Inventors: Abdullah Saleh Hussain Al-Yami, Jerome Schubert
  • Patent number: 9347306
    Abstract: A system and method for the drilling of ground holes by a track steer drill rig. The system and method include a drilling arrangement that permits the speed of drilling holes to be balanced against the stability of the hole thus formed. The system and method allow for the autonomous drilling of ground holes and, particularly, although not exclusively, for the purposes of exploration, mining, and/or construction. In particular, the system and method relate to the autonomous drilling of ground holes which are used for subsequent blasting.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 24, 2016
    Assignees: Technological Resources Pty. Limited, University of Sydney
    Inventors: Charles McHugh, Florian Andreas Oppoizer
  • Patent number: 9322247
    Abstract: A method and system for collecting information of a rig operation, including subterranean operations at a rig-site. The system may include an integrated control system, wherein the integrated control system monitors one or more rig operations, and comprises a centralized data acquisition server coupled to one or more sensor units of the rig operations. The system may further include a central computer that can communicate with sensor units, and store the data in a central time-synchronized database accessible by a central data acquisition server, wherein the central time-synchronized database collects data from the various sensors to generate a time-synchronized overview of rig operations.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 26, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Fabian Fidel Rojas, Evan Davies, Ronald Johannes Dirksen, Donald Leon Crawford
  • Patent number: 9322246
    Abstract: A method that is usable with a well includes introducing solids into a pneumatic stream to produce a solids-containing pneumatic stream; communicating the solids-containing pneumatic stream to a blender assembly to mix the solids with at least one other material to produce a flow; and pumping the flow into the well.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: April 26, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Timothy Lesko, Kim Hodgson, Edward Kent Leugemors, Rod Shampine
  • Patent number: 9309761
    Abstract: A downhole communication system for an extended reach borehole, including an operator unit operatively arranged to enable at least one of remote monitoring or control of at least one device disposed in the extended reach borehole. A first communicator is disposed in a highly deviated extension of the borehole and configured to receive or transmit a signal at least one of from or to the at least one device. A second communicator is included spatially remote from the borehole. The first communicator and the second communicator are located substantially in a vertically extending plane defined along a length of the highly deviated extension. The second communicator is operatively in signal communication with both the first communicator and the operator unit for enabling signal communication between the first communicator and the operator unit via the second communicator. Methods of communicating downhole and completing an extended reach borehole are also included.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: April 12, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventor: Edward Wood
  • Patent number: 9307345
    Abstract: Disclosed is a snake robot for exploration and disclosed is a separable module type snake robot that configures an ad-hoc mesh network by separating a body part into multiple mobile relay modules according to a propagation situation to seamlessly transmit image information to a remote control center.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: April 5, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang Eun Lee, Sung Hoon Kim, Jong Hyun Park
  • Patent number: 9243454
    Abstract: An apparatus for keeping a down hole drilling tool vertically aligned has a tubular body having an axis, an inner bore, at least one perpendicular channel and at least one set of steering elements disposed on opposed sides of the tubular body and engaging the at least one perpendicular channel of the tubular body. The at least one perpendicular channel permits the steering elements to move perpendicularly to the axis of the tubular body and restricts movement parallel to the axis of the tubular body. The first and second steering elements are engaged such that movement of the first or second steering element toward an extended position relative to the tubular body moves the other steering element toward a retracted position relative to the tubular body. Actuators are carried by the tubular body that selectively actuate the steering elements toward the extended position to steer the down hole drilling tool.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: January 26, 2016
    Inventor: Kenneth H. Wenzel
  • Patent number: 9181792
    Abstract: Present embodiments are directed to a drilling system and method for evaluating energy consumption to determine the onset of drilling issues and identify mitigation strategies for more efficient drilling. The drilling system receives drilling parameter values and a drilling performance value from sensors located on a drilling rig, and calculates an energy value based on the drilling parameter values and drilling performance value. The drilling system determines a deviation of the calculated energy value from a desired energy value and identifies one drilling parameter that significantly correlates with the deviation. Further, the drilling system determines an adjustment to the one drilling parameter that, when applied, causes the calculated energy value to approach the desired energy value. The drilling system then indicates the desired adjustment to the drilling operator so that appropriate actions may be taken to mitigate the drilling issue.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 10, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Cesar Pena
  • Patent number: 9157279
    Abstract: In one aspect, the present invention relates to a drilling-information-management system. The drilling-information management system includes a probe assembly disposed on a drill rod, a first computer interoperably coupled to the probe assembly via a conductor disposed in a drill rod, and a second computer in communication with the first computer. The second computer includes a barcode scanner. The drilling-information management system includes a database in communication with the second computer. Drilling-project data is transferred from the database to the second computer and calibration data is transferred from the second computer to the first computer. The first computer executes a drilling plan according to the drilling-project data.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: October 13, 2015
    Assignee: REI, Inc.
    Inventors: Forrest Paul Schumacher, Jeffrey J. Schwoebel, Michael J. Hardin, Daniel J. Brunner
  • Patent number: 9085938
    Abstract: A method and apparatus for controlling drilling, the method comprising ascertaining a current position and attitude of a drilling structure, obtaining a desired end point for the drilling structure, creating an optimized geometric Hermite curve path for the drilling structure from the current position and attitude of the drilling structure to the desired end point for the drilling structure and controlling a drilling of the drilling structure from the current position and attitude of the drilling structure to the desired end point for the drilling structure along the optimized geometric Hermite curve path.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: July 21, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Neilkunal Panchal, Martin Bayliss, James Whidborne
  • Publication number: 20150129306
    Abstract: A method for optimizing drilling includes initializing values of a plurality of drilling operating parameters and drilling response parameters. In a computer, an initial relationship between the plurality of drilling operating parameters and drilling response parameters is determined. A drilling unit to drill a wellbore through subsurface formations. The drilling operating parameters and drilling response parameters are measured during drilling and entered into the computer. A range of values and an optimum value for at least one of the drilling response parameters and at least one of the drilling response parameters is determined in the computer. A display of the at least one of the plurality of drilling operating parameters and the at least one of the drilling response parameters is generated by the computer.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 14, 2015
    Inventors: Chunling Gu Coffman, Rustam Isangulov, Oney Erge, John Christian Luppens, Ginger Hildebrand, Wayne Kotovsky
  • Patent number: 9027670
    Abstract: A method for managing a drilling operation, including generating, by a first sensor and a second sensor of a bottom hole assembly (BHA), a first time based data log and a second time based data log, respectively, representing a borehole parameter along a drilling trajectory, determining, by a computer processor of the BHA and during the drilling operation, a time shift by comparing the first time based data log and the second time based data log, where offsetting the first and second time based data logs by the time shift maximizes a correlation factor of the first and second time based data logs, and determining, within a pre-determined time period from generating the first and second time based data logs, a drilling speed based on the time shift and a pre-determined distance between the first sensor and the second sensor.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: May 12, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Junichi Sugiura
  • Patent number: 9026270
    Abstract: Mobile drilling devices and systems, methods, and computer-readable media for controlling such devices are provided. One method includes receiving user input from a user of a mobile computing device. The method further includes transmitting data based on the user input from the mobile computing device to a control circuit of a mobile drilling device via a wireless network connection. The method further includes generating a plurality of control signals based on the data received from the mobile computing device. Each of the plurality of control signals is configured to control movement of a separate one of a plurality of movement devices of the mobile drilling device. The plurality of movement devices are configured to move the mobile drilling device between locations.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: May 5, 2015
    Assignee: Caterpillar Global Mining Equipment LLC
    Inventors: Alois Poettker, Timo Diekmann, Samuel C. Taylor
  • Patent number: 9022140
    Abstract: Methods and systems are described for improved drilling operations through the use of real-time drilling data to predict bit wear, lithology, pore pressure, a rotating friction coefficient, permeability, and cost in real-time and to adjust drilling parameters in real-time based on the predictions. The real-time lithology prediction is made by processing the real-time drilling data through a multilayer neural network. The real-time bit wear prediction is made by using the real-time drilling data to predict a bit efficiency factor and to detect changes in the bit efficiency factor over time. These predictions may be used to adjust drilling parameters in the drilling operation in real-time, subject to override by the operator. The methods and systems may also include determining various downhole hydraulics parameters and a rotary friction factor. Historical data may be used in combination with real-time data to provide expert system assistance and to identify safety concerns.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: May 5, 2015
    Inventors: Trent Marx, Gary William Reid, Henry Leung, Xiaoxiang Liu
  • Patent number: 9022141
    Abstract: An attitude hold controller method includes receiving at a navigable apparatus a demand inclination and a demand azimuth with respect to a global coordinate system and determining at the navigable apparatus a demand attitude vector according to the received demand inclination and the demand azimuth. Determining at the navigable apparatus a current navigable apparatus attitude vector. Evaluating a control law using the current navigable apparatus vector and the navigable apparatus demand attitude to derive a control law tool face, converting the control law tool face to an equivalent tool face, and applying the equivalent tool face with the navigable apparatus to control the navigable apparatus attitude.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 5, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Neilkunal Panchal, Martin Bayliss, James Whidborne, Wayne J. Phillips
  • Patent number: 9022142
    Abstract: The invention relates to a method and apparatus for opening threaded joints of drilling equipment (6) by striking the drilling equipment (6) with the percussion device of a rock drilling rig (1) and by measuring vibration originating from the drilling equipment (6) during striking. In addition to vibration, measuring means (9) measure a parameter defining at least one additional condition, on the basis of which the decision to stop striking is made.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: May 5, 2015
    Assignee: Sandvik Mining and Construction Oy
    Inventors: Tuomo Pirinen, Vesa Uitto, Miika Huikkola, Maunu Manttari, Sami Hanski, Isto Ahonen
  • Publication number: 20150107898
    Abstract: A method of drilling a subterranean wellbore using a drill string comprising the steps of: a. injecting a drilling fluid into the well bore via the drill string and removing said drilling fluid from an annular space around the drill string (the annulus) via an annulus return line, b. oscillating the pressure of the fluid in the annulus, c. determining the wellbore storage volume and wellbore storage coefficient for each fluid pressure oscillation, d. using the wellbore storage volume and wellbore storage coefficient to determine the proportion by volume of gas and proportion by volume of liquid in the annulus during that pressure oscillation.
    Type: Application
    Filed: May 3, 2013
    Publication date: April 23, 2015
    Applicant: MANAGED PRESSURE OPERATIONS PTE. LTD.
    Inventor: Christian Leuchtenberg
  • Publication number: 20150107897
    Abstract: A method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly at the lower end of a drill string. In one embodiment, a method includes driving the drill string by a drilling mechanism at the upper end of the drill string. A fundamental frequency of stick-slip oscillations suffered by the drill string is estimated. Variations in a drive torque of the drilling mechanism are determined. Known torsional compliance of the drill string is combined with the variations in the drive torque. An output signal representing the instantaneous rotational speed is provided.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventors: Pal Jacob Nessjoen, Age Kyllingstad
  • Publication number: 20150101863
    Abstract: A downhole tool for drilling a sidetracked borehole. The downhole tool includes a body having an axial bore formed at least partially therethrough. At least one magnetometer is within the body. The magnetometer is configured to measure a magnetic field. A processor may be in communication with the at least one magnetometer. The processor may be configured to receive measurements from the at least one magnetometer, determine an orientation of the downhole tool based upon the received measurements, and selectively maintain the orientation of the downhole tool or change the orientation of the downhole tool based upon the determined orientation.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 16, 2015
    Inventor: Benjamin P. Jeffryes
  • Patent number: 9008919
    Abstract: A swing control apparatus and a swing control method for a construction machine are provided. The swing control apparatus includes a start position estimation unit, a stop target position calculation unit, and a swing motor position control unit. Even if an operator releases a lever or commands a stop at different times, an upper swing structure of the construction machine (for example, excavator) can be stopped within a predetermined range, and thus the inconvenience caused by an additional driving operation, which is required as the stop position differs according to the time point where the stop command starts, can be solved.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: April 14, 2015
    Assignee: Volvo Construction Equipment AB
    Inventors: Chun-Han Lee, Jin-Seop Kim
  • Patent number: 8997888
    Abstract: A multi purpose hoisting device for use on a floating vessel having a deck, including: a load bearing structure to be mounted on the vessel; a main hoisting mechanism for raising/lowering an object above the deck and including: at least one main hoisting winch; an upper cable pulley block supported by the load bearing structure; a travelling cable pulley block; a main hoisting cable associated with the at least one main hoisting winch and passed over pulleys of the upper cable pulley block and of the travelling pulley block in a multiple fall configuration, such that the travelling cable pulley block is moveable relative to the load bearing structure by using the at least one main hoisting winch; a main hoist heave compensation mechanism associated with the main hoisting cable for damping the effect of sea-state induced motion of the vessel onto an object supported by the main hoisting cable.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: April 7, 2015
    Assignee: ITREC B.V.
    Inventors: Joop Roodenburg, Diederick Bernardus Wijning
  • Patent number: 8997906
    Abstract: A method for reversing an air mover to remove debris from a cooling system of a work vehicle. In one embodiment, the largest required fan speed for cooling the engine coolant, hydraulic oil and the charge air is used as the set point speed for a fan. The fan is operated at the set point speed to generate airflow across each of the heat exchangers. Multiple conditions are evaluated for reversing the direction of the fan.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: April 7, 2015
    Assignee: AGCO Corporation
    Inventors: Rex Schertz, Gerald R. Johnson, Daniel Soldan
  • Publication number: 20150083492
    Abstract: A drilling system and associated systems and methods for monitoring, controlling, and predicting vibration of a drilling operation. The vibration information can include axial, lateral or torsional vibration of a drill string.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Inventor: Mark Ellsworth Wassell
  • Patent number: 8989900
    Abstract: A robot system, including one or more robots which are provided to a first area where an entry by a person is restricted, and configured to perform a first work which includes one or more steps in the first area, a controller configured to control an operation of the one or more robots, and a visitor detector configured to detect a visitor to the first area.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 24, 2015
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Tamio Nakamura, Kenji Matsukuma
  • Publication number: 20150081221
    Abstract: There is disclosed a method for assessing risk associated with drilling a section of a wellbore in a formation using a drilling system, comprising: providing a probabilistic model for the risk of the drilling system triggering a failure mode during drilling; and assessing the risk of the drilling system triggering one of said failure modes during drilling of the section based on said model. A further such method comprises: defining the critical control parameters for the drilling system; and identifying one or more failure modes of the drilling system associated with each critical control parameter which may arise during drilling the section of the formation.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 19, 2015
    Inventor: Stefano Mancini
  • Publication number: 20150053482
    Abstract: Apparatus, systems, and methods for controlling activities on a drilling rig are described. The methods include installing a control system operably coupled to the drilling rig and having a user interface, receiving operational guidelines from the user interface that include a plurality of control limits associated with operational parameters of the rig, monitoring current values of the operational parameters, and automatically applying the control limits to the operational parameters during operation of the rig.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Inventor: Scott Gilbert Boone
  • Patent number: 8960326
    Abstract: A geo-steering method for drilling a formation penetrated by multiple wells. The method comprises computing a stratigraphic target formation window, computing a target line utilizing an instantaneous formation dip angle correlated to offset well data from an offset well. The method further comprises calculating a target window from actual drilling data overlaying the target window over the stratigraphic target formation window to drill on the target line, identifying target deviation from target line using overlaid windows, generating a target deviation flag when the overlaid results differ above or below the stratigraphic target formation window or user inputted target deviation flag parameters, wherein the target deviation flag stops drilling by the rig. The method performs another actual survey, creating a new window, starting drilling, creating a new target window, overlaying the two windows and monitoring for target deviations, repeating the process until target depth is reached.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: February 24, 2015
    Inventor: Danny T. Williams
  • Patent number: 8950512
    Abstract: A method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly at the lower end of a drill string. In one embodiment, a method includes driving the drill string by a drilling mechanism at the upper end of the drill string. A fundamental frequency of stick-slip oscillations suffered by the drill string is estimated. Variations in a drive torque of the drilling mechanism are determined. Known torsional compliance of the drill string is combined with the variations in the drive torque. An output signal representing the instantaneous rotational speed is provided.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: February 10, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: Pal Jacob Nessjoen, Age Kyllingstad
  • Publication number: 20150014057
    Abstract: A drill for excavating a bore in the earth includes a steerable boring tool configured to excavate a bore and sensors coupled to the boring tool. The sensors are spaced apart from one another at multiple azimuthal locations around the steerable boring tool and the sensors are configured to detect a mineral property in the earth adjacent the steerable boring tool.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Applicant: ELWHA LLC
    Inventors: Michael H. Baym, Terry Briggs, Clark J. Gilbert, W. Daniel Hillis, Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Conor L. Myhrvold, Nathan P. Myhrvold, Tony S. Pan, Clarence T. Tegreene, Charles Whitmer, Lowell L. Wood,, JR., Victoria Y.H. Wood
  • Publication number: 20150014056
    Abstract: A pre-defined custom profile that specifies a potential condition, such as of a drilling rig site, is generated. One or more operational parameters at the drilling rig site are monitored to determine an actual condition of the drilling rig site. A dynamic response is made when it is detected that the actual condition of the drilling rig site matches the potential condition of the drilling rig site, as specified by the pre-defined custom profile. According to one aspect, one or more operations at the drilling rig site are automatically controlled based on the actual condition of the drilling rig site. According to another aspect, a report is automatically generated, the report including data corresponding to the actual condition at the drilling rig site.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 15, 2015
    Inventors: Matthew White, Kevin Goodspeed
  • Publication number: 20150019134
    Abstract: A method and a system are provided for determining the relative positions of a wellbore and an object. The wellbore is represented by a first ellipse and the object is represented by a second ellipse. The first ellipse represents the positional uncertainty of the wellbore and the second ellipse represents the positional uncertainty of the object. The method includes receiving input data relating to a measured or estimated position of the wellbore and the object. In addition, the method includes calculating an expansion factor representing an amount by which one, or both, of the first ellipse and the second ellipse can be expanded with respect to one or both of respective first and second sets of elliptical parameters so that the first and second ellipses osculate. Further, the method includes determining, based on the calculated expansion factor, position data indicative of the relative positions of the wellbore and the object.
    Type: Application
    Filed: January 17, 2013
    Publication date: January 15, 2015
    Applicant: BP EXPLORATION OPERATING COMPANY LIMITED
    Inventor: Steven James Sawaryn
  • Patent number: 8931578
    Abstract: A tunneling system is disclosed that includes a surface power-controller, umbilical tether, robotic tender, and robotic tunneling device. This system allows the robotic tunneling device to efficiently create new tunnels using the power and fluids provided from the surface through the robotic drilling tender, as well as a way to efficiently manage cuttings below surface. The system is designed to operate not only when the well is not producing, but also on a continuous basis while the well is producing.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: January 13, 2015
    Inventors: Bruce Donald Jette, Joseph Buford Parse
  • Publication number: 20140360779
    Abstract: A drillstring with a bit is characterized by controllable variables of vertical and rotational speeds and response variables of axial tension force and torque, referenced to the top of the drillstring. A method of reducing or avoiding at least an axial or a torsional oscillation mode in the drillstring includes: choosing at least one oscillation mode to be controlled; selecting and monitoring a relevant controllable variable and a relevant response variable; determining the oscillation period; estimating from the response variable a dynamic component of bit speed; determining a speed pulse capable of producing a generated oscillation with amplitude substantially equal to the amplitude of the dynamic component of bit speed; and Using open-loop control to add the speed pulse to an operator set speed command when the dynamic component of bit speed has an amplitude exceeding a threshold level and an anti-phase matching a phase of the generated oscillation.
    Type: Application
    Filed: January 17, 2013
    Publication date: December 11, 2014
    Inventor: Age Kyllingstad
  • Patent number: 8905157
    Abstract: A hydraulic fluid control system for controlling pressure fluid supplied to consumers (2, 3, 4) of a rock drilling machine, a regulating valve (6, 7, 8) for each for each consumer and fluid conduits between the regulating valves and the consumers, an electronically controlled auxiliary control unit (11) having an electrically controlled auxiliary valve (14) for connection to a fluid conduit, a sensor for sensing fluid parameter values and sending sensor signals to the auxiliary control unit as sensor input signal actual values, micro-controller (12) having at least one parameter sensor input signal entry (S1-S5, I1-I5) for receiving the sensor input signal actual values and a control signal exit (V1-V6) for signal control of an auxiliary valve, the processor (12) is being arranged to compare the actual and predetermined values and to emit control signals to an auxiliary valve in response to the comparison to adjust fluid flow.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 9, 2014
    Assignees: Atlas Copco Rock Drills AB, Atlas Copco Drilling Solutions LLC
    Inventors: Deyi Jiao, Eugene Cheng, Jonas Sinnerstad, Hans Gustavsson