Patents by Inventor Mohammad Hajjari

Mohammad Hajjari 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: 20230392592
    Abstract: Certain embodiments of the present disclosure generally relate to pumps for conveying fluid at a wellsite. More specifically, some embodiments relate to pumps, such as fracturing or other stimulation pumps, instrumented with sensors to measure or estimate pump parameters. In some instances, pump sensors are used to detect wear or failure or assess remaining useful life of pump components. The sensors can also or instead be used to assess, and in some cases optimize, pump performance. Various additional systems, devices, and methods are also disclosed.
    Type: Application
    Filed: October 25, 2021
    Publication date: December 7, 2023
    Inventors: Rod W. SHAMPINE, Carlos URDANETA, Mohammad HAJJARI, Thomas J. REBLER
  • Patent number: 10233724
    Abstract: An element is deployed within tubing extending to a downhole tool. The downhole tool includes a hydraulic tool and a valve coupled between the conveyance string and the hydraulic tool. The valve includes a valve seat having a passage directing the fluid from the conveyance string to the hydraulic tool. Deploying the element includes landing the element on the valve seat such that the element substantially obstructs flow of the fluid through the valve seat passage. The valve is opened to direct the flow of the fluid around the hydraulic tool, wherein opening the valve utilizes pressure generated in response to the element obstructing the flow of the fluid through the valve seat passage. At least a portion of at least one of the element and the valve seat is then degraded by an amount sufficient to permit the element to pass through the valve seat passage.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 19, 2019
    Assignee: Schlumberger Technology Corporation
    Inventors: Mohammad Hajjari, Manuel P. Marya, Lawrence J. Leising
  • Publication number: 20170306716
    Abstract: An assembly for inclusion in a tool string conveyed via coiled tubing within a wellbore. The assembly includes a mandrel having a passage for receiving fluid via the coiled tubing. The assembly further includes a packer disposed about the mandrel and expandable into sealing contact with a wall of the wellbore in response to receiving the fluid from the passage. The assembly also includes a flow control device controlling flow of the fluid from the passage into the packer. The flow control device includes a degradable material that is reactive to the fluid.
    Type: Application
    Filed: April 20, 2016
    Publication date: October 26, 2017
    Inventors: Mohammad Hajjari, Manuel P. Marya, Robert Bucher
  • Publication number: 20160273303
    Abstract: A technique facilitates use of an actuator with a locking feature enabling selective locking of the actuator in a desired operational position. For example, the actuator may comprise a mandrel which can be used to shift a tool between operational positions. The mandrel is surrounded by a housing which creates a cavity. A magneto rheological fluid is disposed within the cavity and operates in cooperation with the mandrel to enable selective locking of the mandrel at a desired operational position or positions. Magnetic field can be generated via an electromagnetic coil or a permanent magnet to selectively increase the viscosity of the magneto rheological fluid to lock the mandrel at the appropriate operational position.
    Type: Application
    Filed: March 19, 2015
    Publication date: September 22, 2016
    Inventors: Mohammad Hajjari, Don McQuaig
  • Patent number: 9435172
    Abstract: A downhole tool conveyed via tubing within a wellbore at a wellsite comprises a hydraulic tool driven by fluid pumped to the hydraulic tool via the tubing. The downhole tool further comprises a valve in fluid communication between the tubing and the hydraulic tool. The valve is configurable in the wellbore between an expanded position, establishing a bypass diverting at least a portion of the pumped fluid away from the hydraulic tool, and a compressed position, closing the bypass.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: September 6, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Mark C. Oettli, L. Michael McKee, Robert L. Bucher, III, Mohammad Hajjari
  • Publication number: 20150369003
    Abstract: An element is deployed within tubing extending to a downhole tool. The downhole tool includes a hydraulic tool and a valve coupled between the conveyance string and the hydraulic tool. The valve includes a valve seat having a passage directing the fluid from the conveyance string to the hydraulic tool. Deploying the element includes landing the element on the valve seat such that the element substantially obstructs flow of the fluid through the valve seat passage. The valve is opened to direct the flow of the fluid around the hydraulic tool, wherein opening the valve utilizes pressure generated in response to the element obstructing the flow of the fluid through the valve seat passage. At least a portion of at least one of the element and the valve seat is then degraded by an amount sufficient to permit the element to pass through the valve seat passage.
    Type: Application
    Filed: December 19, 2013
    Publication date: December 24, 2015
    Inventors: Mohammad Hajjari, Manuel P. Marya, Lawrence J. Leising
  • Publication number: 20150114644
    Abstract: A downhole tool conveyed via tubing within a wellbore at a wellsite comprises a hydraulic tool driven by fluid pumped to the hydraulic tool via the tubing. The downhole tool further comprises a valve in fluid communication between the tubing and the hydraulic tool. The valve is configurable in the wellbore between an expanded position, establishing a bypass diverting at least a portion of the pumped fluid away from the hydraulic tool, and a compressed position, closing the bypass.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Mark C. Oettli, L. Michael McKee, Robert L. Bucher, III, Mohammad Hajjari