In Response To Drilling Fluid Circulation Patents (Class 175/38)
  • Patent number: 10982976
    Abstract: A plug gauge includes a housing, defining an internal volume, first openings, and second openings. The plug gauge includes first contact elements, each at least partially received in a respective one of the first openings. The plug gauge includes a first plunger in the internal volume and movable relative to the housing. The first plunger is biased to urge the first contact elements radially outward through the first openings. The plug gauge includes a first sensor sensing movement of the first plunger. The plug gauge includes second contact elements, each at least partially received in a respective one of the second openings. The plug gauge includes a second plunger in the internal volume and movable relative to the housing. The second plunger is biased to urge the second contact elements radially outward through the second openings. The plug gauge includes a second sensor sensing movement of the second plunger.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 20, 2021
    Assignee: The Boeing Company
    Inventors: Mark Albrecht, Kwok Tung Chan, Tanni Sisco, Everette D. Gray
  • Patent number: 10961794
    Abstract: A control system and method for a well drilling platform having a plurality well platform systems is provided. The control system includes at least one remote communication unit (RCU), and a controller. The controller is in communication with the well platform systems, and has at least one processor, and a memory device that is coupled to the processor and that stores the instructions. When executed by the processor, the instructions cause the controller to communicate with the well platform systems to receive information from one or more well platform systems and to send system control commands to the one or more well platform systems. The controller and the at least one RCU are configured to electronically communicate with one another information relating to at least one of the well platform systems.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: March 30, 2021
    Assignee: ADS SERVICES LLC
    Inventors: Anand Parthasarathy, Scott Charles, Syed Rasheed
  • Patent number: 10927623
    Abstract: A clean-out tool and method of cleaning out a wellbore. The clean-out tool is placed at the end of a coiled tubing or other conveyance string. The clean-out tool comprises a tubular housing providing an elongated bore through which fluid flows. The tubular housing has back-jetting ports disposed at an upward angle therein. The clean-out tool is configured to operate in a back-jetting mode when the clean-out fluid is pumped into the tubular housing at a first flow rate. In this mode, at least a portion of clean-out fluid flows through the bore, up an annular region and then through the back jetting ports. The clean-out tool is further configured to operate in a fluid flow-through mode when the clean-out fluids are pumped into the bore of the tubular housing at a second flow rate. In this mode, all of the clean-out fluid flows through the clean-out tool.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: February 23, 2021
    Assignee: Stang Technologies Limited
    Inventors: Jonathan M. Stang, Daryl E. Magner
  • Patent number: 10927648
    Abstract: A perforating tool and method of use in a wellbore. The perforating tool is placed at the end of a coiled tubing or other conveyance string. The perforating tool comprises a tubular housing providing an elongated bore through which fluid flows. The tubular housing has jetting ports used for hydraulic perforating. The tool operates in a flow-through mode when working fluid is pumped into the tubular housing at a first flow rate, with all of the fluid flowing through the end of the tool. The perforating tool operates in a perforating mode when the working fluid is pumped into the bore of the tubular housing at a second flow rate. In this mode, all of the working fluid flows through the jetting ports. The perforating tool may include a sequencing mechanism responsive to a sequence of flow rates to cycle the tool through operating modes.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: February 23, 2021
    Assignee: Stang Technologies Ltd.
    Inventors: Jonathan M. Stang, Daryl E. Magner
  • Patent number: 10907447
    Abstract: A clean-out tool and method of cleaning out a wellbore. The clean-out tool is placed at the end of a coiled tubing or other conveyance string. The clean-out tool comprises a tubular housing providing an elongated bore through which fluid flows. The tubular housing has back-jetting ports disposed at an upward angle therein. The clean-out tool is configured to operate in a back-jetting mode when the clean-out fluid is pumped into the tubular housing at a first flow rate. In this mode, a portion of clean-out fluid flows through the bore, up an annular region and then through the back jetting ports. The clean-out tool is further configured to operate in a fluid flow-through mode when the clean-out fluids are pumped into the bore of the tubular housing at a second flow rate. In this mode, all of the clean-out fluid flows through the clean-out tool.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: February 2, 2021
    Assignee: Stang Technologies Limited
    Inventors: Jonathan M Stang, Daryl E Magner
  • Patent number: 10876357
    Abstract: A flowing drilling apparatus having a feed drive for producing a feed of a flow drill in an axial direction and having a rotary drive for producing a rotational movement of the flow drill. The flowing drilling apparatus includes a control device that is configured and adapted to control the feed drive and/or the rotary drive in accordance with a first set of parameters up to a defined switchover point and to control it/them in accordance with a second set of parameters differing from the first set of parameters, from the defined switchover point onward.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 29, 2020
    Inventors: Christian Schönig, Jochen Hartmann
  • Patent number: 10787896
    Abstract: A system including a plurality of subsystems each of which includes a subsystem controller coupled with a sensor configured to obtain a measurement, an actuator, and a subsystem processor. The subsystem processor includes a first memory storing instructions to identify a subsystem state and generate a subsystem performance objective based on the subsystem state. The system also includes a global processor coupled with each of the subsystems, the global processor includes a second memory storing instructions to identify a global system state based on the subsystem state of each subsystem, generate a global performance objective, calculate an updated performance objective for each subsystem, and transmit the updated performance objective to each subsystem. Once received, the subsystem controller in each subsystem activates the actuator to adjust a subsystem parameter to meet the updated performance objective.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: September 29, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jason D. Dykstra, Yuzhen Xue
  • Patent number: 10689928
    Abstract: A method for use with a managed pressure drilling (MPD) system, the system including a drill string having a drill bit, an annulus defined outside of the drill string, a mud pump for pumping mud down through the drill string and back up through the annulus, a control choke in an extraction path coupled to the annulus, a back pressure pump also coupled to the extraction path, and a programmable logic controller (PLC) for controlling the control choke, the method including: a) performing measurements to determine a dataset including, for each of a plurality of time steps k: a value of fluid flow rate through the drill bit qbit[k], a value of fluid flow rate through the control choke qc[k], a value of fluid flow rate from the back pressure pump qbpp[k] and a value of fluid pressure at the control choke pc[k]; b) executing an inversion algorithm on the PLC to obtain a value for the bulk modulus of a fluid within the annulus, the inversion algorithm taking the dataset as an input, wherein the inversion algorithm a
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: June 23, 2020
    Assignee: EQUINOR ENERGY AS
    Inventors: Steinar Elgsæter, Christian Bratli
  • Patent number: 10683717
    Abstract: A downhole valve is described. The downhole valve has a pilot valve section and a tool section. The pilot valve section has a first tube. The tool section has a second tube slidably coupled to the first tube of the pilot valve section so as to provide fluid communication between the pilot valve section and the tool section. The tool section can be in the form of a signal valve section of a mud pulse telemetry valve, a reamer, a vertical steerable tool, a rotary steerable tool, a by-pass valve, a packer, a whipstock, or stabilizer.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 16, 2020
    Assignee: Bench Tree Group, LLC
    Inventors: John R. Menconi, Pedro R. Segura, Jr.
  • Patent number: 10619463
    Abstract: An electrical submersible pump system include an electric submersible pump coupled to a lower end of a production conduit extending into a wellbore, the production conduit in fluid communication with a discharge of the electric submersible pump and with a well conduit extending to the surface. A bypass conduit is nested inside the production conduit and is in fluid communication with the discharge. The check valve is opened when flow is established in the annular space and is otherwise closed. The bypass conduit extends for a selected distance above the discharge. The bypass conduit has a plurality of selected diameter apertures through a wall of the bypass conduit to enable flow into the annular space.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: April 14, 2020
    Assignee: ZILIFT HOLDINGS LIMITED
    Inventors: Jamie Cochran, Richard McCann
  • Patent number: 10597994
    Abstract: Industrial machines and methods of operating the same. One method includes receiving, with an electronic processor, a current value of a parameter of an industrial machine during operation of the industrial machine and comparing, with the electronic processor, the current value of the parameter to a stored value of the parameter to determine whether the industrial machine is unlevel. The method also includes, when the industrial machine is unlevel, autonomously, with the electronic processor, changing a position of at least one of a plurality of jacks to level the industrial machine, wherein autonomously changing the position of at least one of the plurality of jacks includes at least one selected from a group consisting of extending the at least one of the plurality of jacks and retracting the at least one of the plurality of jacks.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: March 24, 2020
    Assignee: Joy Global Surface Mining Inc
    Inventors: Charles Allen, Eric Kuiper
  • Patent number: 10450165
    Abstract: An elevator may include a brake apparatus such as a safety apparatus or a service brake, for example. The brake apparatus may be designed to generate a stepped braking force for braking an elevator car of the elevator. A plurality of brake cylinder assemblies may be configured so as to supply different braking forces. The brake cylinder assemblies may in some cases include a piston, a spring, and a brake pad. Moreover, a valve assembly may be utilized by one or more of the brake cylinder assemblies. Additional features of the brake apparatus may involve a compressor, a pressure accumulator, a pressure regulating valve.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: October 22, 2019
    Assignee: THYSSENKRUPP ELEVATOR AG
    Inventors: Thomas Kuczera, Walter Hoffmann, Markus Hänle, Eduard Steinhauer
  • Patent number: 10415316
    Abstract: A directional casing drilling system includes a casing string, a drilling rig and a retrievable Bottom Hole Assembly (BHA). The drilling rig includes a casing drive for rotating the casing string in the borehole, a control system for controlling the casing drive, and a mud pump for pumping a continuous flow of drilling mud into the casing string. The BHA includes a torque transfer section, with which it is secured in the casing string, and a drill bit section held in a drilling position in the torque transfer section. It further includes a mud drive that rotates the drilling position of the drill bit section about the longitudinal axis of the torque transfer section, and a communicating device for communicating the orientation of the drill bit to the control system. The BHA is steered by adjusting the rotational speed of the casing string.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: September 17, 2019
    Assignee: HUISMAN WELL TECHNOLOGY
    Inventors: Gerardus Godefridus Johannes Van Og, Pieter Dirk Melis Van Duivendijk, Joop Roodenburg
  • Patent number: 10415357
    Abstract: According to one aspect, a system is adapted to actively control one or more operating parameters associated with: a wellbore extending in a subterranean formation, and/or wellbore fluid flowing out of the wellbore via a wellhead. The system includes one or more sensors; an electronic controller adapted to receive from the one or more sensors measurement data; and a valve through which the wellbore fluid is adapted to flow. The valve is adapted to be in communication with the electronic controller. The active control of the at least one of the one or more operating parameters is adapted to facilitate: maintenance of the integrity of the wellbore, and/or enhancement of oil and/or gas production out of the wellbore. In one embodiment, the wellbore fluid flow is frac flow-back. In another aspect, a system is adapted to monitor vent gas separated from wellbore fluid flowing out a wellhead.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: September 17, 2019
    Assignee: Seaboard International Inc.
    Inventors: Roger Johns, Stephen Folmar, Matthew B. Green, Levent Aktas, Timothy Long, Ron Hersche
  • Patent number: 10248920
    Abstract: A method for scheduling wellbore construction activities includes entering a well plan into a computer. The well plan includes estimated start and stop times for a plurality of activities in a predetermined sequence. Progress of selected ones of the plurality of activities is measured during their performance. In the computer, expected ending time of at least one of the plurality of activities is recalculated based on progress thereof during that activity. In the computer, expected start and stop times are recalculated for each activity subsequent to the activity in progress based on the recalculated expected ending time. The recalculated start and stop times for each subsequent activity are displayed.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: April 2, 2019
    Assignee: Schlumberger Technology Corporation
    Inventors: Ginger Hildebrand, Chunling Gu Coffman, John Christian Luppens
  • Patent number: 10233741
    Abstract: The present disclosure provides systems and methods for tracking system parameters in each of two or more circulatory systems, such as in a dual gradient drilling system. The systems and methods may include defining each of multiple circulatory systems and simultaneously tracking one or more system parameters for each circulatory system. Systems and methods may further include tracking a discrete portion of fluid circulating in each circulatory system, and associating one or more system parameters with each tracked discrete portion of fluid. Such association may be maintained as each portion of fluid circulates in each respective circulatory system.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 19, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Kurt Adam Kronenberger, Mathew Dennis Rowe, Patrick Gregory McCormack, Hunter Terrance Guchereau, Bradly Shawn Hogan
  • Patent number: 10227838
    Abstract: A drilling system used with drilling fluid for drilling a wellbore has at least one choke in adjustable communication with flow from the wellbore. A programmable control device determines a flow coefficient value of the choke from a measured position value and a stored characteristic of the choke. The device then calculates a first value of the flow of the drilling fluid from the wellbore through the choke based on the flow coefficient value and a pressure differential measured across the choke. The device adjusts operation of the drilling system at least partially based on the calculated flow value. To adjust operation, the device can set the choke (or another choke) to a set flow value relative to the calculated first flow value. Density of the flow can also be determined so the device can adjust operation based on mass flow rate.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: March 12, 2019
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Walter S. Dillard, Lev Ring
  • Patent number: 10093516
    Abstract: An elevator may include a braking device such as a safety gear system or a service brake, for instance. The braking device may include a hydraulically-acting brake for braking an elevator car of the elevator. The braking device may further include a hydraulic unit with a pump assembly, a brake cylinder assembly, and a valve assembly for ventilating the brake. Further, the hydraulic unit may be fastened to the braking device.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: October 9, 2018
    Assignees: THYSSENKRUPP ELEVATOR AG, THYSSENKRUPP AG
    Inventors: Thomas Kuczera, Walter Hoffmann
  • Patent number: 9850712
    Abstract: Methods are provided for determining the drilling state of a downhole tool and controlling the trajectory of the downhole tool in a wellbore during a drilling operation. One method may include identifying a drilling parameter indicative of the drilling state of the downhole tool in the wellbore. The method may also include determining the drilling state based on the identified drilling parameter. The identified drilling parameter may be obtained from a sensor communicatively coupled with a processor and disposed in the wellbore. The method may further include adjusting the operation of an integral controller based on the determined drilling state to control the trajectory of the downhole tool in the wellbore during the drilling operation.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: December 26, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Junichi Sugiura
  • Patent number: 9828853
    Abstract: A drilling fluid telemetry pulser comprises a housing disposed in a drill string in a wellbore, wherein the drill string has a drilling fluid flowing therein. At least one vent valve is disposed in the housing wherein the at least one vent valve is actuatable to vent a portion of the drilling fluid from an interior of the drill string to an exterior of the drill string to generate a negative pressure pulse in the drilling fluid in the drill string. A hydraulic system provides hydraulic power to actuate the at least one vent valve. A downhole controller comprises a processor and a memory in data communication with the processor wherein the memory contains programmed instructions to control the actuation of the at least one vent valve.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 28, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Larry DeLynn Chambers
  • Patent number: 9759026
    Abstract: This invention discloses a method for wellbore pressure correction. The method comprises: measuring a bottom hole pressure using a downhole pressure measurement-while-drilling tool; calculating a predicted bottom hole pressure; and correcting a wellbore pressure using the measured bottom hole pressure and the predicted bottom hole pressure, to achieve managed pressure drilling (MPD). The invention makes up for the defect in the existing art that the difference between a wellbore pressure calculation processing method and the actual downhole pressure is relatively great, and is capable of more quickly and accurately calculating the wellbore pressure in real time so that accurate calculation and real-time correction and control of dynamic wellbore pressure on a narrow density window formation are achieved, thereby meeting the requirement of good bottom hole pressure and the requirement of ensuring safe and quick drilling.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 12, 2017
    Assignee: Drilling Research Institute of China National Petroleum Company
    Inventors: Wei Liu, Lin Shi, Kai Wang, Yingcao Zhou, Xiaoqiang Zhai, Qingfeng Guo, Boqi Zhou
  • Patent number: 9574440
    Abstract: A pulser driver assembly of a measurement-while-drilling tool that includes an improved flow switch is disclosed. The flow switch uses multiple accelerometers of different types that measure acceleration changes in a system. The accelerometer data is then filtered and processed by an onboard microcontroller. The filtered data is then passed to a fuzzy logic voting algorithm which systematically and robustly characterizes the signal, and identifies the flow state.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: February 21, 2017
    Assignee: REME, L.L.C.
    Inventors: Abraham Erdos, Kenneth Miller, Brad Munoz, Joshua Carter, James Mathieson
  • Patent number: 9567836
    Abstract: Systems and methods for optimizing drilling results may be based on, inter alia, (1) real-time data collected during drilling, (2) a transiently modeled cuttings distribution along the wellbore, and optionally (3) a theoretical change to one or more operational parameters. In some instances, methods may include drilling a wellbore penetrating a subterranean formation while circulating a drilling fluid; gathering real-time data about the drilling; calculating a cuttings distribution along the wellbore based on the real-time data using a transient model; calculating an equivalent circulating density profile along the wellbore based on (1) real-time data collected during drilling, (2) a transiently modeled cuttings distribution along the wellbore, and optionally (3) a theoretical change; and changing at least one operational parameter based on a comparison of the equivalent circulating density profile to a fracture gradient of the subterranean formation.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: February 14, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dale E. Jamison, Robert L. Williams
  • Patent number: 9353586
    Abstract: 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.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: May 31, 2016
    Assignee: MATHENA, INC.
    Inventors: John Mathena, Bill Bennett
  • Patent number: 9297246
    Abstract: Apparatus and methods for removing sand or other particulate from well fracturing return water are disclosed. In a sand separator box, a barrier element divides the tank into an upper compartment and a lower compartment. Particulate-laden return water flows through a gas separator and then into the upper compartment of the box. The barrier element allows the water in the upper compartment to pass into the lower compartment while keeping the sand or particulate in the upper compartment. As water accumulates in the lower compartment, it is pumped out to storage tanks or back to the well for reuse.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: March 29, 2016
    Inventors: Cooper Smartt, Billy Smartt
  • Patent number: 9284799
    Abstract: A method for controlling entry of hydrocarbon into a wellbore from a subsurface formation includes determining whether hydrocarbon is entering the wellbore. Whether a rate of hydrocarbon entry into the wellbore is slowing is then determined Control of discharge from the wellbore is then switched from maintaining a selected wellbore pressure to controlling a rate of discharge of fluid from the wellbore to be substantially constant if the hydrocarbon entry rate is slowing. Control of discharge from the wellbore is returned to maintaining the selected wellbore pressure when the hydrocarbon stops entering the wellbore.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: March 15, 2016
    Assignee: Smith International, Inc.
    Inventors: Donald G. Reitsma, Ossama R. Sehsah, Yawan Couturier
  • Patent number: 9284822
    Abstract: A method for injecting treatment chemical into a well includes selecting times at which to operate a chemical dispenser to inject a selected amount of treatment chemical into a well. At each selected time whether a wellbore pump is operating is determined. If the pump is operating the selected amount of treatment chemical is dispensed into the well. If the pump is not operating, no chemical is dispensed and a counter is incremented. At each subsequent selected time, the determining whether the well pump is operating is repeated. When a subsequent selected time coincides with a time at which the well pump is determined to be operating, the chemical dispenser is operated to inject a product of the number in the counter plus one, and the selected amount of treatment chemical into the well.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: March 15, 2016
    Inventor: Robert N. Ayres
  • Patent number: 9279298
    Abstract: A well control method can include removing from a wellbore an undesired influx from a formation into the wellbore, determining a desired pressure profile in real time with a hydraulics model, and automatically operating a flow choking device while removing the undesired influx from the wellbore, thereby influencing an actual pressure profile toward the desired pressure profile. Another well control method can include removing out of a wellbore an undesired influx from a formation into the wellbore, determining a desired wellbore pressure with a hydraulics model, the desired wellbore pressure preventing further influx into the wellbore while removing the undesired influx from the wellbore, and automatically operating a flow choking device while removing the undesired influx from the wellbore, thereby influencing an actual wellbore pressure toward the desired wellbore pressure.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: March 8, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Derrick W. Lewis, Ronald J. Dirksen, David Michael Radley, James R. Lovorn, Fredrick D. Curtis
  • Patent number: 9234396
    Abstract: Systems and methods for monitoring and characterizing fluids in a subterranean formation are provided. In one embodiment, a method for monitoring fluids in a well bore penetrating a subterranean formation is provided, the method comprising: determining an actual buoyed hookload of an apparatus at least partially disposed in the well bore wherein a first set of fluids are present therein; comparing the actual buoyed hookload to a calculated buoyed hookload of the apparatus, wherein the calculated buoyed hookload is based in part on the unbuoyed hookload of the apparatus, and the properties of a second set of fluids that are assumed to be present in the well bore; and determining at least one property of the first set of fluids based in part on the comparison of the actual buoyed hookload to the calculated buoyed hookload.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: January 12, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher Marland, Ian Mitchell, James Randolph Lovorn
  • Patent number: 9033064
    Abstract: A method of monitoring a well for unwanted formation fluid influx is disclosed. Measurements of well outflow are acquired during a period in which drilling operations are performed for the well. Occurrences of stagnant flow events during the period are determined. An outflow signature is generated from the well outflow measurements for each stagnant flow event. The outflow signatures are displayed sequentially in time of occurrence. Each outflow signature is analyzed for an anomaly.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 19, 2015
    Assignee: NATIONAL OILWELL, VARCO, L.P.
    Inventor: William Leo Koederitz
  • Patent number: 9010459
    Abstract: Air compressor systems, upgrade kits, computer readable medium, and methods for controlling an air compressor for improved performance. The methods may include receiving a working air requirement; determining an estimated air pressure of the air compressor to deliver the working air requirement; measuring a pressure of the air compressor; comparing the measured pressure with the calculated estimated air pressure; if the measured pressure of the air compressor is greater than the determined estimated air pressure by a predetermined greater amount, then decreasing an output control of the air compressor; and if the measured pressure of the air compressor is less than the calculated estimated air pressure by a predetermined lesser amount then increasing the output control of the air compressor. The air compressor may be controlled based on a measured pressure of delivered working air. An oil control system may shut off oil to parts of the air compressor.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 21, 2015
    Assignee: Sandvik Intellectual Property AB
    Inventors: Grant Andrew Field, Simo Tanner, Karl Ingmarsson
  • Patent number: 9010460
    Abstract: A method and a system for detecting or measuring influxes of formation water or brine into a drilling fluid being used to drill a borehole through an earth formation are described. The method and system comprising using an electrode based sensor system to determine changes in capacitance and/or conductance of the drilling fluid.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: April 21, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Gerald H. Meeten, Richard H. Mills
  • Publication number: 20150060140
    Abstract: The present invention recites a method, system and apparatus for steering a drill string, wherein an eccentric steering device is recited. The eccentric steering device may comprise an eccentric sleeve configured for mounting exterior to a portion of the drill string and permitting the drill string to rotate within the eccentric sleeve and a brake positioned to selectively cause rotation of the eccentric sleeve with the drill string. In one embodiment, the eccentric steering device may further comprise one or more bearings positioned between the eccentric sleeve and the drill string.
    Type: Application
    Filed: November 9, 2014
    Publication date: March 5, 2015
    Inventor: Geoff Downton
  • Patent number: 8955619
    Abstract: Embodiments of the present invention include methods and apparatus for dynamically controlling pressure within a wellbore while forming the wellbore. In one aspect, one or more pressure control apparatus are used to maintain desired pressure within the wellbore while drilling the wellbore. In another aspect, pressure is dynamically controlled while drilling using foam to maintain a substantially homogenous foam flow regime within the wellbore annulus for carrying cuttings from the wellbore.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: February 17, 2015
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Frederick T. Tilton, David M. Haugen, Kevin W. Smith, David J. Brunnert, Thomas F. Bailey, Tom Fuller, Roy W. Rooyakkers, Ram K. Bansal, Graham Skinner
  • Publication number: 20140374157
    Abstract: A clean out sub for use in a drill string having a tool body with a cavity for passage of drilling fluid and annular fluid circulation ports extending through the tool body, a valve spool is positioned within the tool body cavity having a reduced diameter orifice, a compression spring is located within the tool body cavity adjacent the valve spool, wherein a drop in fluid pressure created by the orifice imparts a downhole force on the valve spool and at a predetermined force overcomes a set resistive force of the compression spring thereby moving the valve spool to open the annular fluid circulation ports.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 25, 2014
    Inventors: Eric John O'Neal, Rudolph Ernst Krueger, V, Andrew Alexander Trowbridge
  • 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
  • Publication number: 20140345943
    Abstract: The present invention is directed to an automatic drill fluid measurement apparatus. More specifically, the present invention is directed to an apparatus which may automatically measure a weight or volume of a quantity of drill fluid and provide real-time feedback information regarding the drill fluid to a well operator. The automatic drill fluid measurement apparatus may further comprise a variety of sensors and other devices that are used in conjunction with a microprocessor to obtain useful information regarding drill fluid, such as mass flow meters, volume sensors and timers. Together, the apparatus, sensors and microprocessor may work together to control the opening and closing of valves of the measurement apparatus.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Inventor: Jerry Alan Rayborn
  • Publication number: 20140345942
    Abstract: Diverting flow in a drilling fluid circulation system to regulate drilling fluid pressure. A pump of a drilling fluid pressure regulation system for a well bore can discharge drilling fluid through discharge piping at flow rate. A pressure control device has an inlet connected to the discharge piping and an outlet connected to bypass piping. A processor connected to the pump and the pressure control device can adjust the pressure control device to modify a pressure of the drilling fluid by at least partially opening the pressure control device and releasing drilling fluid into the bypass piping at a selected flow rate. The processor can modify the drilling fluid flow rate in the discharge piping based on the pressure represented by the pressure measurement signals and the selected flow rate in the bypass piping such that the target pressure parameter of the drilling fluid in the discharge piping is satisfied.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 27, 2014
    Inventors: Nancy Suzan Davis, Cody Neal Butler
  • Publication number: 20140262510
    Abstract: A closed loop drilling fluids circulation system includes a first drilling fluid circulation system disposed at a first subterranean drill site. The first drilling fluid circulation system includes a supply tank for holding clean drilling fluid and a solids control device configured to separate solids from used drilling fluid. In addition, the system includes a central processing facility disposed at a location remote from the first drill site and configured to receive used drilling fluid from the solids control device and supply clean drilling fluid to the supply tank.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventors: Richard Beddoes, Ulric Fournier, Jeff Hall, Allan Peats
  • Patent number: 8746366
    Abstract: A downhole tool includes a downlinking system deployed in a downhole tool body having an internal through bore. The downlinking system includes a differential pressure transducer configured to measured a pressure difference between drilling fluid in the internal through bore and drilling fluid external to the tool (in the borehole annulus). The differential transducer is electrically connected with an electronic controller (deployed substantially anywhere in the drill string) that is configured to receive and decode pressure waveforms.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 10, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Ruchir S. Patwa, Pralay Das, Junichi Sugiura
  • Patent number: 8727037
    Abstract: A method and system to aid and/or train well control personnel by measuring the actual hydraulic delay and pressure attenuation of operator choke changes during well control operations or simulations. This provides the choke operator with an anticipated drillpipe pressure as soon as the choke is adjusted, accounting for hydraulic delay, pressure attenuation and prior choke adjustments that are currently travelling through the wellbore as well as reflections of the transient pressure waves against the pumps and choke. The technique that is described utilizes only three inputs, and works without knowledge of or inputting data such as well depth, pipe and hole geometry, mud properties, temperature, water depth, land, offshore platform or floating (subsea BOP's) drilling rigs. Further, the system can detect and warn the operator of potential problems based on the results of the real time analysis.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: May 20, 2014
    Inventor: David E. Mouton
  • Publication number: 20140090888
    Abstract: A drilling system includes a drill string extending through a BOP and a drilling fluid discharge coupling mounted to the BOP. In addition, the drilling system includes a drilling fluid control system configured to control a pressure or flow rate of a drilling fluid flowing through the discharge coupling. The drilling fluid control system includes a flow rate and pressure regulating device, a feedback controller system configured to operate the regulating device, and a first sensor configured to measure an actual pressure or flow rate of the drilling fluid flowing through the discharge coupling.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 3, 2014
    Applicant: National Oilwell Varco, L.P.
    Inventors: Jerry E. Smith, Philip A. Strassle
  • Patent number: 8684109
    Abstract: A method of drilling a subterranean borehole comprising: a) pumping a drilling fluid down a drillstring (12), the drillstring (12) having a bit (14) at an end thereof, b) rotating the drillstring (12) about its longitudinal axis so that the bit forms a borehole (10) in the ground, the method further comprising the steps of: c) determining a desired drilling fluid flow rate range d) determining the desired upper and lower limits of the fluid pressure at the bottom of the wellbore (the BHP); e) determining the viscosity of drilling fluid which will maintain the BHP within the range set by the upper and lower BHP limits over the entire or the majority of the required drilling flow rate range; f) adjusting the composition of a drilling fluid to bring the drilling fluid to the viscosity calculated in step e above.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: April 1, 2014
    Assignee: Managed Pressure Operations Pte Ltd
    Inventors: Charles Orbell, Pat Savage
  • Publication number: 20140048331
    Abstract: A method of drilling a subsea wellbore includes drilling the subsea wellbore and, while drilling the subsea wellbore: measuring a flow rate of the drilling fluid injected into a tubular string; measuring a flow rate of returns; comparing the returns flow rate to the drilling fluid flow rate to detect a kick by a formation being drilled; and exerting backpressure on the returns using a first variable choke valve. The method further includes, in response to detecting the kick: closing a blowout preventer of a subsea pressure control assembly (PCA) against the tubular string; and diverting the flow of returns from the PCA, through a choke line having a second variable choke valve, and through the first variable choke valve.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 20, 2014
    Applicant: WEATHERFORD/LAMB, INC.
    Inventors: Said BOUTALBI, Michael Brian GRAYSON
  • Patent number: 8613331
    Abstract: A method of selectively actuating a downhole tool, wherein the downhole tool includes a tubular body with an axial borehole therethrough and at least one component, includes increasing a flow rate of a circulating fluid in the axial borehole of the downhole tool to reach a specified circulating fluid pressure, detecting an increased circulating fluid pressure in the borehole of the tool with at least one sensor, actuating a motor to operate a pump, and sending a fluid to operate a sliding sleeve. The method further includes operating the sleeve disposed in the axial borehole to open an actuation chamber port in response to the increased circulating fluid pressure in the borehole of the tool, thereby filling an actuation chamber with the drilling fluid, and moving the at least one expandable component radially outward.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: December 24, 2013
    Assignee: Smith International, Inc.
    Inventor: Praful C. Desai
  • Patent number: 8528660
    Abstract: A system and method for safely controlling a well being drilled or that has been drilled into a subterranean formation in which a conventional blow-out preventer operates to close the well bore to atmosphere upon the detection of a fluid influx event. Fluid pressures as well as fluid flow rates into and out of the well bore are measured and monitored to more accurately and confidently determine the fracture pressure and pore pressure of the formation and perform well control operations in response to a fluid influx event. During a suspected fluid influx event, one or more of the fluid flow and pressure measurements are used to confirm the fluid influx event and to safely regain well control by circulating the fluid influx out of the well through a choke line while maintaining the pressure inside the well between specified, selected limits, such as between the fracture and pore pressures.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: September 10, 2013
    Assignee: Safekick Americas LLC
    Inventor: Helio Santos
  • Patent number: 8522896
    Abstract: Processes and apparatus that continuously change the physical state and characteristics of drilling fluids at planned periodic intervals to consistently and correctly compensate for differing geological formation properties, wellbore characteristics, rate of penetration, solids removal efficiency, and other essential factors involved in the drilling process, comprising: initiating a system correction of a Minimum Base Required (“MBR”); and administering a dilutant to a drilling fluid according to the MBR. The system corrections may be performed recursively, adjusting the system's base dilutant and chemical product additions according to MBR. The drilling fluid consistency produced is based upon several drilling-rig specific parameters.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: September 3, 2013
    Inventor: Michael V. Rowden
  • Patent number: 8517692
    Abstract: A method of controlling pressure in a mud pump system includes generating a pressure limiting factor output using a pressure feedback input and a motor speed input to calculate a fluid conductance estimate, maintaining the pressure limiting factor output at a maximum value based on a pressure set-point, continuously updating a normal fluid conductance value based on the fluid conductance estimate while the pressure limiting factor output remains at the maximum value, freezing the normal fluid conductance value, if the pressure limiting factor output is less than the maximum value, calculating a change in fluid conductance based on the normal fluid conductance value and the fluid conductance estimate, generating at least one adaptive gain based on the change in fluid conductance, and controlling a motor speed of a pump in the mud pump system based on the at least one adaptive gain.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: August 27, 2013
    Assignee: Omron Oilfield & Marine, Inc.
    Inventors: Fergus Hopwood, Arun Natarajan
  • Patent number: 8457898
    Abstract: An illustrative embodiment of a method is disclosed for assessing image quality of a down hole formation image, the method comprising collecting acquisition system data from a plurality of sensors down hole; applying a set of rules to the acquisition system data to obtain an acquisition quality indicator; and presenting the acquisition quality indicator at a surface location. A system is disclosed for performing the method.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: June 4, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Andreas Hartmann, Oleg N. Akimov, Ansgar Baule, Christian Fulda
  • Patent number: 8408331
    Abstract: A downhole tool includes a downlinking system deployed in a downhole tool body having an internal through bore. The downlinking system includes a differential pressure transducer configured to measured a pressure difference between drilling fluid in the internal through bore and drilling fluid external to the tool (in the borehole annulus). The differential transducer is electrically connected with an electronic controller (deployed substantially anywhere in the drill string) that is configured to receive and decode pressure waveforms.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: April 2, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Ruchir S. Patwa, Pralay Das, Junichi Sugiura