Patents by Inventor Neelesh V. DEOLALIKAR

Neelesh V. DEOLALIKAR has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200332597
    Abstract: A rotary steerable tool for steering a drill string can include a tool collar, a plurality of pad pushers, and a plurality of fasteners. The pad pushers can each be positionable within a respective cavity of the tool collar. Each pad pusher can be coupled to a pad retention housing that has an engagement hole and a through hole spaced apart from the engagement hole. The pad pushers can be interconnected by a plurality of fasteners. Each fastener can extend between adjacent pad retention housings to interconnect the plurality of pad pushers around the tool collar.
    Type: Application
    Filed: March 2, 2018
    Publication date: October 22, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Brian Lee Doud, Neelesh V. Deolalikar
  • Publication number: 20200332599
    Abstract: A steering head for steering a drill string may include a pad pusher including a steering pad and a piston. The steering pad may have a pivot axis, and be rotatable about the pivot axis between retracted and extended positions. The pad pusher may further include a motion restrictor to restrict rotation about the pivot axis. The steering head may further include a housing having a motion restrictor disposed at a position corresponding to the pad pusher motion restrictor. The pad pusher motion restrictor may be engageable with the housing motion restrictor to restrict motion of the steering pad relative to the housing.
    Type: Application
    Filed: March 2, 2018
    Publication date: October 22, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Brian Lee Doud, Neelesh V. Deolalikar
  • Publication number: 20200325731
    Abstract: A drill string steering system includes a flow manifold and a rotary valve. An actuation flow channel and a backflow channel are rotatable with respect to piston flow channels of the flow manifold. The actuation flow channel is rotatable relative to the flow manifold to increase or decrease flow toward the piston for controlling actuation of the piston. The backflow channel is rotatable relative to the flow manifold to increase or decrease flow away from the piston to the annulus for controlling retraction of the piston.
    Type: Application
    Filed: February 2, 2018
    Publication date: October 15, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Larry DeLynn Chambers, Neelesh V. Deolalikar
  • Publication number: 20200318436
    Abstract: A rotary steerable tool for steering a drill string may include a tool collar extending along a longitudinal axis of the tool, a pad pusher, a pad retention housing, and a piston liner. The pad pusher may be rotatable about a pivot axis thereof between retracted and extended positions relative to the tool collar, for steering the drill string. The piston liner may be coupled to the pad retention housing and have a piston channel that defines a curved profile. The piston liner may provide sealing contact against a perimeter of the piston upon pivoting of the pad pusher through the piston channel along the curved profile, relative to the piston liner.
    Type: Application
    Filed: March 2, 2018
    Publication date: October 8, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Brian Lee Doud, Neelesh V. Deolalikar
  • Publication number: 20200308928
    Abstract: A drill string steering system includes a motor and a rotary valve body disposed in a tool body. The motor includes a motor shaft coupled to the motor and extending within a central bore of the tool body. The motor shaft has a downhole engagement portion that includes a first splined surface. The rotary valve body includes a disk-shaped component and a valve shaft coupled to the disk-shaped component and extending uphole of the disk-shaped component. The valve shaft includes a second splined surface engageable with the first splined surface for rotation of the motor shaft to be imparted to the rotary valve body.
    Type: Application
    Filed: February 2, 2018
    Publication date: October 1, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Larry DeLynn Chambers, Neelesh V. Deolalikar
  • Patent number: 10648322
    Abstract: A system and method for determining drilling parameters based on hydraulic pressure associated with a directional drilling system are disclosed. A drilling parameter associated with a directional drilling system may be determined by measuring hydraulic pressure associated with the directional drilling system during drilling of a wellbore, detecting a change in the hydraulic pressure, and determining a drilling parameter based on the detected change in hydraulic pressure.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: May 12, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Neelesh V. Deolalikar, Daniel Martin Winslow
  • Patent number: 10612347
    Abstract: Systems and methods of down-hole power generation are disclosed, which provide for the generation of electrical power in a down-hole environment for use by down-hole tools such as logging tools, telemetry, and electric control circuit. The electrical generator is operably coupled to a turbine shaft of a hydraulic turbine, and operates at a first rotational speed in response to a rotation of the turbine shaft. The turbine shaft is also coupled to a down-hole actuator such as a rotary drill bit such that the actuator operates at a second rotational speed in response to the rotation of the turbine shaft. A gearbox is operably coupled between the actuator and the turbine shaft to permit operation of the generator and actuator at different rotational speeds by the rotation of the turbines shaft.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: April 7, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Neelesh V. Deolalikar, Daniel Winslow, Benjamin S. Riley, Mukul Agnihotri
  • Publication number: 20200011135
    Abstract: A directional drilling device for drilling a wellbore having a wall, the device including an outer housing, a driveshaft located at least partially within and selectively rotatable with respect to the outer housing. The device also includes extendable members oveable to extend radially outwardly from the outer housing and so as to apply a force onto the wellbore wall and move the device off-center in the wellbore in a direction. The device further includes a hydraulic actuation system operable to control hydraulic fluid to extend and retract of the extendable members. The rotational orientation of the extendable members is controllable by rotation of the outer housing by the driveshaft and the rotational orientation of the extendable members and the outer housing and thus the direction may be maintained by extension of the extendable members into contact with the borehole to restrain the outer housing from rotating.
    Type: Application
    Filed: May 15, 2017
    Publication date: January 9, 2020
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Neelesh V. DEOLALIKAR, Daniel M. WINSLOW
  • Patent number: 10240396
    Abstract: Directional control of a rotary steerable drilling assembly can be facilitated by a flow control module for maintaining a geostationary position or orientation of components of the assembly. The drilling assembly can include a bit shaft and an offset mandrel for adjusting a longitudinal axis of the bit shaft. A drive mechanism can rotate the offset mandrel independently of the bit shaft to maintain the offset mandrel in a geostationary position or orientation relative to a formation of the earth and/or a wellbore. A flow control module controllably directs a fluid flow to the drive mechanism. The flow control module can include an inner body and an outer body, defining an annulus there between and one or more blades within the annulus, each of the blades being rotatable to provide a range of angles with respect to a longitudinal axis of the flow control module.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 26, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Stephen Christopher Janes, Daniel Martin Winslow, Neelesh V. Deolalikar
  • Patent number: 10018030
    Abstract: A method and system for monitoring operation of a motor may include initially determining a no load torque versus temperature characteristic of the motor over a range of operating temperatures. After a period of operation, a no load torque value and temperature of the motor may be determined. Motor temperature may be measured by a local thermistor or the like. Motor torque may be determined from measured motor current. The motor torque and temperature may then be compared to the initial torque versus temperature characteristic to determine a change in load of said motor due to break down of motor oil, worn bearings, or similar condition. In some embodiment, the method and system may be used with a downhole tool for drilling a well, such as a rotary steerable system.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: July 10, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Neelesh V. Deolalikar, Stephen C. Janes
  • Publication number: 20180038197
    Abstract: A downhole tool including multiple orifices defining at least a first and a second flow path, and a valve that adjusts to change a ratio of fluid flow between the first and second flow paths, the valve being offset from the multiple orifices by a gap that is adjustable to customize a sensitivity of the change to each adjustment. A method for regulating flow along a first fluid path in a downhole tool includes adjusting a valve relative to multiple orifices that define the first fluid path and a second fluid path, said adjusting changing a ratio of fluid flow between the first and second flow paths, and adjusting a gap between the valve and the multiple orifices to modify a sensitivity of the change to each adjustment.
    Type: Application
    Filed: December 30, 2015
    Publication date: February 8, 2018
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Stephen Christopher Janes, Neelesh V. Deolalikar, Daniel Winslow
  • Publication number: 20180038203
    Abstract: Systems and methods of down-hole power generation are disclosed, which provide for the generation of electrical power in a down-hole environment for use by down-hole tools such as logging tools, telemetry, and electric control circuit. The electrical generator is operably coupled to a turbine shaft of a hydraulic turbine, and operates at a first rotational speed in response to a rotation of the turbine shaft. The turbine shaft is also coupled to a down-hole actuator such as a rotary drill bit such that the actuator operates at a second rotational speed in response to the rotation of the turbine shaft. A gearbox is operably coupled between the actuator and the turbine shaft to permit operation of the generator and actuator at different rotational speeds by the rotation of the turbines shaft.
    Type: Application
    Filed: April 15, 2015
    Publication date: February 8, 2018
    Inventors: Neelesh V. Deolalikar, Daniel Winslow, Benjamin S. Riley, Mukul Agnihotri
  • Publication number: 20170292363
    Abstract: A method and system for monitoring operation of a motor may include initially determining a no load torque versus temperature characteristic of the motor over a range of operating temperatures. After a period of operation, a no load torque value and temperature of the motor may be determined. Motor temperature may be measured by a local thermistor or the like. Motor torque may be determined from measured motor current. The motor torque and temperature may then be compared to the initial torque versus temperature characteristic to determine a change in load of said motor due to break down of motor oil, worn bearings, or similar condition. In some embodiment, the method and system may be used with a downhole tool for drilling a well, such as a rotary steerable system.
    Type: Application
    Filed: December 30, 2014
    Publication date: October 12, 2017
    Inventors: Neelesh V. Deolalikar, Stephen C. Janes
  • Publication number: 20170159362
    Abstract: Directional control of a rotary steerable drilling assembly can be facilitated by a flow control module for maintaining a geostationary position or orientation of components of the assembly. The drilling assembly can include a bit shaft and an offset mandrel for adjusting a longitudinal axis of the bit shaft. A drive mechanism can rotate the offset mandrel independently of the bit shaft to maintain the offset mandrel in a geostationary position or orientation relative to a formation of the earth and/or a wellbore. A flow control module controllably directs a fluid flow to the drive mechanism. The flow control module can include an inner body and an outer body, defining an annulus there between and one or more blades within the annulus, each of the blades being rotatable to provide a range of angles with respect to a longitudinal axis of the flow control module.
    Type: Application
    Filed: May 21, 2015
    Publication date: June 8, 2017
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Stephen Christopher Janes, Daniel Martin Winslow, Neelesh v. Deolalikar
  • Patent number: 9528320
    Abstract: A rotary steerable drilling system includes a gear box driven by a driveshaft having an input rotatable in a first direction and an output rotatable in an opposite direction. An output of the gear box has a first axis of rotation, and a rotatable tubular bit sleeve annularly arranged around a distal portion of the driveshaft is pivotable to have a second axis of rotation and includes a connector assembly on a distal end of the bit sleeve for coupling the bit sleeve to a drill bit. A spherical CV joint couples the bit sleeve to the drive-shaft, eccentric cams are movably positioned on the driveshaft, a differential gearing system is connected to the eccentric cams, and a pressure applying device is connected to the eccentric cams. When activated, the pressure applying device applies pressure to modify the speed of rotation of the eccentric cams. A method of rotary steerable drilling is disclosed.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: December 27, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Daniel Martin Winslow, Neelesh V. Deolalikar
  • Publication number: 20160326857
    Abstract: According to aspects of the present disclosure, systems and methods for a closed-loop speed/position control mechanism. An example system may include a housing and a planetary gearbox disposed within the housing, wherein a ring gear of the planetary gearbox is coupled to the housing, a sun gear of the planetary gearbox is coupled to a drive shaft, and a planetary carrier of the planetary gearbox is coupled to an output shaft. A controller may receive measurements from sensors proximate to the output shaft and use those measurements to transmit control signals to change the rotation of the drive shaft. In this way, the output shaft may be rotated independently of the housing by controlling the rotation of the drive shaft. In example systems, the output shaft may be a sonde or an offset mandrel coupled to a drill bit. The rive shaft may be coupled to a fluid-controlled controlled drive mechanism and rotation may be controlled by adjusting flow control valve.
    Type: Application
    Filed: February 20, 2014
    Publication date: November 10, 2016
    Inventors: Neelesh V. Deolalikar, Daniel Winslow
  • Publication number: 20160222734
    Abstract: A rotary steerable drilling system includes a gear box driven by a drill string having an input rotatable in a first direction and an output rotatable in an opposite direction. A drive shaft coupled to the output has a first axis of rotation, and a rotatable tubular bit sleeve annularly arranged around a distal portion of the drive shaft is pivotable to have a second axis of rotation and includes a connector assembly on a distal end of the bit sleeve for coupling the bit sleeve to a drill bit. A spherical CV joint couples the bit sleeve to the drive shaft, eccentric cams are movably no positioned on the drive shaft, a differential gearing system is connected to the eccentric cams, and a pressure applying device is connected to the eccentric cams. When activated, the pressure applying device applies pressure to modify the speed of rotation of the eccentric cams. A method of rotary steerable drilling is disclosed.
    Type: Application
    Filed: November 25, 2013
    Publication date: August 4, 2016
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Daniel Martin WINSLOW, Neelesh V. DEOLALIKAR