Patents Examined by Yong-Suk (Philip) Ro
  • Patent number: 11454099
    Abstract: A method of acidizing a geological formation and a method of determining an effectiveness of the acidizing with NMR spectroscopy. Variations of acidizing and determining the effectiveness of the acidizing are described. The method includes recording a first nuclear magnetic resonance spectrum of a geological formation, calculating an interconnectivity number, acidizing the geological formation, again recording an NMR spectrum and calculating an interconnectivity number to compare the interconnectivity before and after acidizing.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: September 27, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Mohamed Ahmed Nasr El-Din Mahmoud
  • Patent number: 11434731
    Abstract: An in-situ methane explosion shaped charge perforating device with a molecular sieve is provided and includes a body, an end of the body is fixedly connected to the molecular sieve, two sides of the molecular sieve are fixedly connected to two baffles respectively, each baffle is embedded with several first check valves inside, an end of the body far away from the molecular sieve is fixedly connected to a fixing plate, a center of the fixing plate is embedded with an ignition device, a bottom of the fixing plate is embedded with a concentration sensor, a portion of the fixing plate between the ignition device and the concentration sensor is formed with an air extracting hole, inner walls of a top and a bottom of the body are symmetrically embedded with second check valves, and the ignition device and the concentration sensor are electrically connected to an external controller.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: September 6, 2022
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Ning Luo, Cheng Zhai, Hanliang Liang, Yunchen Suo, Xiaolong Cao, Yishuo Yuan, Yabo Chai
  • Patent number: 11434714
    Abstract: An assembly and a method for sealing a tubular in a wellbore, where the wellbore sealing assembly includes a hollow housing body and a seal. The hollow housing body is configured to receive a tubular. The seal is positioned within the hollow housing body and has a first movable end and a second movable end. A first seal surface and a first hollow housing inner surface define a first hollow housing cavity. A second seal surface and a second hollow housing surface define a second hollow housing cavity. The seal is configured to seal fluid in the first hollow housing cavity from fluid in the second hollow housing cavity when the tubular is disposed in the hollow housing body. The first movable end and the second movable end are moveable to change a length of a third seal surface shared between the seal and the tubular.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: September 6, 2022
    Assignee: Saudi Arabian Oil Company
    Inventor: Krzysztof Karol Machocki
  • Patent number: 11421505
    Abstract: A wellbore packer system includes a mandrel positionable within a wellbore. The system further includes a wellbore packer positionable around the mandrel. The wellbore packer includes an expandable metal sealing element positionable around a first portion of the mandrel to form a long-term seal within the wellbore in response to exposure of the expandable metal sealing element to wellbore fluid. Additionally, the wellbore packer includes an elastomeric sealing element positionable around a second portion of the mandrel to form a short-term seal in response to receiving a seal-setting force. Moreover, the wellbore packer includes a setting piston positionable to apply the seal-setting force on the elastomeric sealing element.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: August 23, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher Michael Pelto, Michael Linley Fripp, Geir Gjelstad
  • Patent number: 11421483
    Abstract: A hybrid bit includes an earth-boring element and a percussion element. The earth-boring element and the percussion element are coaxially arranged, with the earth-boring element surrounding the percussion element. A reciprocating member of the percussion element may oscillate in a manner that enables a bottom end of the reciprocating member to repeatedly protrude from a bottom end of the earth-boring element and to be repeatedly withdrawn. A configuration of the earth-boring element may enable it to drill into and remove some materials from an earth formation, while the percussion element may enable the hybrid bit to drill into and remove difficult-to-drill materials, including abrasive materials and/or materials with high compressive forces, such as chert.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 23, 2022
    Inventor: Jonathan M. Eve
  • Patent number: 11421507
    Abstract: A coating reservoir defining a chamber operable retain to a liquid coating. A retractable application assembly includes a nozzle fluidically coupled to the coating reservoir. The nozzle is configured to dispense the liquid coating onto a wall of a wellbore. A spreader is proximal to the nozzle. The spreader is configured to regulate a thickness of the liquid coating dispensed by the nozzle. A flexible coating housing is positioned between the coating reservoir and the nozzle. The coating housing is configured to seal against a wall of the wellbore and seal the nozzle, spreader, and dispensed liquid coating from contamination within the wellbore.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: August 23, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohammed S. Subahi, Nasser Al Hamraa, Rawan Abdullah Alzowaid, Ahmed Hashim Daghistani, Mohammed Abdulaziz Alshobaian, Moaath Awadh AlQahtani
  • Patent number: 11421512
    Abstract: A wellbore assembly includes a drill string and a drill bit in fluid communication with the drill string. The drill bit has a tubular wall, an internal fluid channel, a tapered tube, and a spring. The fluid channel receives and flows the drilling fluid from the drill bit bore and out the drill bit. The fluid channel includes an inwardly projecting shoulder. The tapered tube is disposed inside the fluid channel. The tube has a rim and a wall extending from and converging away from the rim in a flow direction of the drilling fluid. The spring is disposed between the inwardly projecting shoulder and the rim. The tapered tube is movable under fluidic pressure in the flow direction to compress or extend the spring. The tube pushes an obstruction in the fluid channel out of the fluid channel upon movement of the tube.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: August 23, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Peter Ido Egbe, Victor Jose Bustamante Rodriguez, Sajid Hussain
  • Patent number: 11408244
    Abstract: The disclosure provides for a method for setting an inflatable packer. The method includes positioning an inflatable packer within a borehole, and pumping fluid into an inflatable element of the inflatable packer using a pump that is driven by a motor. The method includes measuring pressure of the inflatable element, determining a derivative of the measured pressure with respect to time, and determining onset of restraining of the inflatable element has occurred. Upon or after determining the onset of restraining, the method includes turning off the motor or slowing down an rpm of the motor. The disclosure also provides for a system, including a computer readable medium with processor-executable instructions stored thereon that are configured to instruct a processor to execute a pressure control algorithm to control a speed of the motor in response to pressure measurement data from the pressure sensor.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 9, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bo Yang, Kai Hsu, Deopaul Dindial
  • Patent number: 11401775
    Abstract: A composite downhole tool, such as a frac plug or a bridge plug, having a composite sleeve located around a composite mandrel and defining an overlapping or overlapped section between the two. One or more shear pins with each shear pin having a pin hole is provided with the downhole tool to reinforce the downhole tool from interlaminate shear. The one or more shear pins can further be reinforced from rotation by overlapping at least part of the one or more pins with a lip of a ring.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: August 2, 2022
    Assignee: CCDI Composites, Inc.
    Inventors: Dennis Sherlin, Steven Koon Hung Sim
  • Patent number: 11401773
    Abstract: A wellbore assembly includes a first tube and a second tube. The first tube is disposed within a wellbore and has a first end fixed with respect to a wall of the wellbore. The second tube is coupled to a second end of the first tube. The second tube has a third end opposite the coupling and fixed with respect to the wall of the wellbore. The first tube includes a portion of reduced or increased diameter residing between the first end and the second end. The portion of reduced or increased diameter defines an internal diameter that changes, with the first tube under a compression load, to decrease a length of the first tube. The internal diameter changes, with the first tube under a tensile load, to increase a length of the first tube to accommodate changes in length of the first tube or the second tube or both.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: August 2, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Waheed Arshad, Mohammad H. Altwaijri, Ahmed M. Al-Omair
  • Patent number: 11391127
    Abstract: A perforating gun system may include a gun body and a charge tube disposed within and rotatably mounted to the gun body, wherein the charge tube includes a receiving feature disposed at an axial end of the charge tube. The perforating gun system may also include at least one charge mounted within the charge tube. The at least one charge is configured to perforate a sidewall of a wellbore upon detonation. Additionally, perforating gun system may include a weighted feature adjustably attached to the receiving feature of the charge tube in one of a plurality of angular positions, wherein adjusting the angular position of the weighted feature is configured to adjust a center of gravity of the charge tube such that gravity will cause the charge tube to rotate to a corresponding phasing angle.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: July 19, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher C. Hoelscher, Camille Anne Bryant
  • Patent number: 11384602
    Abstract: A boring assembly extends along a main axis and comprises a boring head comprising at least one first nozzle and at least one second nozzle The or each second nozzle is different from the or each first nozzle. The boring assembly includes a first delivery device configured to deliver a jet of abrasive-free water at a pressure comprised between 2000 bar and 4000 bar to the at least one first nozzle. The boring assembly includes a second delivery device configured to deliver a jet containing at least one abrasive material at a pressure comprised between 2000 bar and 6000 bar to the at least one second nozzle.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: July 12, 2022
    Assignee: FRAMATOME
    Inventor: Marc Lacroix
  • Patent number: 11384605
    Abstract: A centralizer assembly includes a tubular comprising a ground-down region and a raised region. A wall thickness of the tubular in the ground-down region is less than a wall thickness of the tubular in the raised region, and the wall thickness of the tubular in the ground-down region is substantially constant as proceeding around the tubular in the ground-down region. The centralizer assembly also includes a centralizer disposed at least partially in the ground-down region.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: July 12, 2022
    Assignee: INNOVEX DOWNHOLE SOLUTIONS, INC.
    Inventor: Iain Levie
  • Patent number: 11377927
    Abstract: An energetics device is employed to create an outwardly directed pressure wave at a selected depth within a wellbore tubular cemented into a wellbore. The pressure wave causes the wellbore tubular to plastically deform at the selected depth. This locally expands the wellbore tubular at the selected depth, whereby a circumferential recess is created into an inner surface of the wellbore tubular and whereby the outer surface of the wellbore tubular is forced into the surrounding cement sheath at the selected depth. Microcavities and/or micro annuli in the impacted zone may be sealed as a result.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: July 5, 2022
    Assignee: SHELL USA, INC.
    Inventor: Frank Ruckert
  • Patent number: 11377924
    Abstract: A downhole barrier can include a housing disposed between a slip and a seal element, a mandrel extending through the housing and the seal element, and a piston fixed to the mandrel and separating two chambers in the housing. One chamber is positioned between the slip and the other chamber, and is in communication with a passage in the mandrel. The other chamber is in communication with an exterior of the barrier. A system can include a downhole barrier set in a wellbore. The barrier can include a housing disposed between a slip and a seal element, a mandrel, and a piston fixed to the mandrel, the piston separating two chambers in the housing. An outer area of the mandrel in one chamber is equal to twice a difference between an inner area of the housing and an outer area of the mandrel in the other chamber.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: July 5, 2022
    Assignee: Weatherford Technology Holdings, LLC
    Inventor: Michael W. Mitchell
  • Patent number: 11359449
    Abstract: A ball for sealing a plug in a well, the ball including a body; an actuation mechanism located in the body and configured to break the body into parts; and a ball sensor located on the body and configured to activate the actuation mechanism. The ball sensor is configured to measure a parameter that is generated by a tool sensor, which is located on a downhole tool.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 14, 2022
    Assignee: GEODYNAMICS, INC.
    Inventor: John T. Hardesty
  • Patent number: 11352840
    Abstract: An apparatus for reducing torque in a drill string includes a clamp assembly having a first clamp segment and a second clamp segment, the first and second clamp segments each including two circumferential ends, the two circumferential ends of the first clamp segment being configured to be connected to the two circumferential ends of the second clamp segment so as to secure the clamp assembly around an oilfield tubular and prevent the clamp assembly from rotating relative to the oilfield tubular. An outer diameter surface of each of the first and second clamp segments is generally continuous in an axial direction. The apparatus also includes an outer sleeve positioned around the clamp assembly, wherein the clamp assembly is configured to rotate with the oilfield tubular and with respect to the outer sleeve.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: June 7, 2022
    Assignee: FRANK'S INTERNATIONAL, LLC
    Inventors: Logan Smith, Jarret Daigle, Keith Lutgring, Matthew Weber, Luk Servaes, Todd Simar, Dustin Pitre
  • Patent number: 11352841
    Abstract: A system that includes a drillstring with a bottomhole assembly (BHA). The system also includes at least one stabilizer or reamer integrated with the BHA, wherein each of the at least one stabilizer or reamer includes a position adjustment assembly. The system also includes a processing unit that provides control signals to each position adjustment assembly, wherein the control signals are based on a cost function.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 7, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jason D. Dykstra, Xingyong Song, Venkata Madhukanth Vadali
  • Patent number: 11346186
    Abstract: An apparatus for generating acoustic waves within a medium to stimulate oil recovery within an oil reservoir. The apparatus is operable with a single moving part—a central rotor, and the rotor further includes a “conduit” through which the supply fluid passes.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 31, 2022
    Assignee: Hydroacoustics, Inc.
    Inventors: Robert D. Valtierra, Mark J. Ozimek, Eugene Sisto
  • Patent number: 11346184
    Abstract: A method of perforating a wellbore is described herein. The method includes lowering a perforating wellbore tool into the wellbore proximate a formation to be perforated, anchoring the perforating wellbore tool by setting an anchoring tool, perforating the formation, creating a low pressure chamber in the perforating wellbore tool, and unsetting the anchoring tool after a time delay.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: May 31, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Jose Escudero, Andrew Prisbell, Bhagyashri Walse