Patents by Inventor Patrick M. Ljungdahl

Patrick M. Ljungdahl 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).

  • Patent number: 10825008
    Abstract: Methods and apparatus identify downhole equipment and correlate input data with the equipment to improve planning and/or inventory operations. For some embodiments, oilfield equipment or tubular goods such as drill pipe include a shaped recess along an outer circumference for receiving a tag cartridge by shrink fitting. Once tagged, detector system configurations at pipe yards may facilitate logging the presence and location of each drill pipe and correlating specific data, such as inspection data, to each drill pipe. Further, this correlation populates a database utilized to achieve other business functions such as forecasting number of additional drill pipe needed to purchase, invoicing customers according to actual tracked wear/use of the drill pipe being returned, and providing well or job specific drill string population using known history pipe joints.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: November 3, 2020
    Assignee: Weatherford Technology Holdings, Inc.
    Inventors: Paul Steven Griggs, Patrick M. Ljungdahl, Stephen Sarradet, Larry Williams, Matthew G. Miller, Simon John Harrall, Tuong Thanh Le
  • Publication number: 20180089657
    Abstract: Methods and apparatus identify downhole equipment and correlate input data with the equipment to improve planning and/or inventory operations. For some embodiments, oilfield equipment or tubular goods such as drill pipe include a shaped recess along an outer circumference for receiving a tag cartridge by shrink fitting. Once tagged, detector system configurations at pipe yards may facilitate logging the presence and location of each drill pipe and correlating specific data, such as inspection data, to each drill pipe. Further, this correlation populates a database utilized to achieve other business functions such as forecasting number of additional drill pipe needed to purchase, invoicing customers according to actual tracked wear/use of the drill pipe being returned, and providing well or job specific drill string population using known history pipe joints.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 29, 2018
    Inventors: Paul Steven Griggs, Patrick M. Ljungdahl, Stephen Sarradet, Larry Williams, Matthew G. Miller, Simon John Harrall, Tuong Thanh Le
  • Patent number: 9824347
    Abstract: Methods and apparatus identify downhole equipment and correlate input data with the equipment to improve planning and/or inventory operations. For some embodiments, oilfield equipment or tubular goods such as drill pipe include a shaped recess along an outer circumference for receiving a tag cartridge by shrink fitting. Once tagged, detector system configurations at pipe yards may facilitate logging the presence and location of each drill pipe and correlating specific data, such as inspection data, to each drill pipe. Further, this correlation populates a database utilized to achieve other business functions such as forecasting number of additional drill pipe needed to purchase, invoicing customers according to actual tracked wear/use of the drill pipe being returned, and providing well or job specific drill string population using known history pipe joints.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: November 21, 2017
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Paul Steven Griggs, Patrick M. Ljungdahl, Stephen Sarradet, Larry Williams, Matthew G. Miller, Tuong Thanh Le
  • Patent number: 8997879
    Abstract: A well containment assembly comprising a first pressure-containing device and a diverter spool. The diverter spool comprises a body having a longitudinal central axis and at least partially defining a primary flowbore, an upper connection assembly coupled to the body, a lower connection assembly coupled to the body, and a plurality of side outlets. Each of the plurality of side outlets has a longitudinal central axis and at least partially defines a secondary flowbore. Each of the plurality secondary flowbores is in communication with the primary flowbore, and the angle between the longitudinal central axis of the body and the longitudinal central axis of the plurality of side outlets is less than 90° with respect to the primary flowbore. The first pressure-containing device is coupled to the diverter spool via the upper connection assembly.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: April 7, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Douglas N. Derr, Patrick M. Ljungdahl
  • Publication number: 20140006227
    Abstract: Methods and apparatus identify downhole equipment and correlate input data with the equipment to improve planning and/or inventory operations. For some embodiments, oilfield equipment or tubular goods such as drill pipe include a shaped recess along an outer circumference for receiving a tag cartridge by shrink fitting. Once tagged, detector system configurations at pipe yards may facilitate logging the presence and location of each drill pipe and correlating specific data, such as inspection data, to each drill pipe. Further, this correlation populates a database utilized to achieve other business functions such as forecasting number of additional drill pipe needed to purchase, invoicing customers according to actual tracked wear/use of the drill pipe being returned, and providing well or job specific drill string population using known history pipe joints.
    Type: Application
    Filed: June 10, 2013
    Publication date: January 2, 2014
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Paul Steven Griggs, Patrick M. Ljungdahl, Stephen Sarradet, Larry Williams, Matthew G. Miller, Simon John Harrall, Tuong Thanh Le
  • Patent number: 8463664
    Abstract: Methods and apparatus identify downhole equipment and correlate input data with the equipment to improve planning and/or inventory operations. For some embodiments, oilfield equipment or tubular goods such as drill pipe include a shaped recess along an outer circumference for receiving a tag cartridge by shrink fitting. Once tagged, detector system configurations at pipe yards may facilitate logging the presence and location of each drill pipe and correlating specific data, such as inspection data, to each drill pipe. Further, this correlation populates a database utilized to achieve other business functions such as forecasting number of additional drill pipe needed to purchase, invoicing customers according to actual tracked wear/use of the drill pipe being returned, and providing well or job specific drill string population using known history pipe joints.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: June 11, 2013
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Paul Steven Griggs, Patrick M. Ljungdahl, Stephen Sarradet, Larry Williams, Matthew G. Miller, Simon John Harrall, Tuong Thanh Le
  • Publication number: 20130056226
    Abstract: A well containment assembly comprising a first pressure-containing device, and a diverter spool, the diverter spool comprising a body having a longitudinal central axis and at least partially defining a primary flowbore, an upper connection assembly coupled to the body, a lower connection assembly coupled to the body, and a plurality of side outlets, each of the plurality of side outlets having a longitudinal central axis and at least partially defining a secondary flowbore, wherein each of the plurality secondary flowbores are in communication with the primary flowbore, and wherein the angle between the longitudinal central axis of the body and the longitudinal central axis of the plurality of side outlets is less than 90° with respect to the primary flowbore, wherein the first pressure-containing device is coupled to the diverter spool via the upper connection assembly.
    Type: Application
    Filed: September 1, 2011
    Publication date: March 7, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Douglas N. DERR, Patrick M. LJUNGDAHL
  • Patent number: 6494268
    Abstract: A method and apparatus is provided to prevent axial twisting, vibration, and bounce of individual components comprising a stack of operational surface components for a well which may occur during the transportation, hoisting, or use of the stack. A transport and support frame is provided which comprises a plurality of substantially vertical members, a plurality of substantially horizontal members interconnecting the vertical members, and a support structure to secure the stack within the frame.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: December 17, 2002
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Patrick M. Ljungdahl, Ira Glenn Harper, Jr., Court Adkins