Patents by Inventor Asif Javed

Asif Javed 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: 10301901
    Abstract: A technique facilitates pressure containment with a retrievable cement bushing. The retrievable cement bushing includes a body and an engagement lug that cooperates with a sleeve. The engagement lug is mounted on the body and is movable to a radially outward position for engagement with a corresponding portion of a surrounding wall, e.g an internal packer wall. The sleeve is sized to receive a slick joint therethrough and is secured to a radially inward position relative to the engagement lug via a retention member movably mounted on the sleeve, so as to hold the engagement lug in the radially outward position. The sleeve protects the slick joint from inwardly directed loading via the engagement lug when the retrievable cement bushing is subjected to differential pressures.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 28, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Asif Javed, James Hall
  • Publication number: 20190085653
    Abstract: A technique facilitates pressure containment with a retrievable cement bushing. The retrievable cement bushing includes a body and an engagement lug that cooperates with a sleeve. The engagement lug is mounted on the body and is movable to a radially outward position for engagement with a corresponding portion of a surrounding wall, e.g an internal packer wall. The sleeve is sized to receive a slick joint therethrough and is secured to a radially inward position relative to the engagement lug via a retention member movably mounted on the sleeve, so as to hold the engagement lug in the radially outward position. The sleeve protects the slick joint from inwardly directed loading via the engagement lug when the retrievable cement bushing is subjected to differential pressures.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Inventors: Asif Javed, James Hall
  • Patent number: 10145201
    Abstract: A technique facilitates pressure containment with a retrievable cement bushing. The retrievable cement bushing comprises a body having an internal longitudinal passage. Additionally, the retrievable cement bushing comprises an engagement lug which cooperates with a sleeve. The engagement lug is mounted on the body and is movable to a radially outward position for engagement with a corresponding portion of a surrounding wall, e.g an internal packer wall. The sleeve is sized to receive a slick joint therethrough and is movable to a radially inward position relative to the engagement lug so as to hold the engagement lug in the radially outward position. The sleeve protects the slick joint from inwardly directed loading via the engagement lug when the retrievable cement bushing is subjected to differential pressures.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: December 4, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Asif Javed, James Hall
  • Publication number: 20170044862
    Abstract: A technique facilitates pressure containment with a retrievable cement bushing. The retrievable cement bushing comprises a body having an internal longitudinal passage. Additionally, the retrievable cement bushing comprises an engagement lug which cooperates with a sleeve. The engagement lug is mounted on the body and is movable to a radially outward position for engagement with a corresponding portion of a surrounding wall, e.g an internal packer wall. The sleeve is sized to receive a slick joint therethrough and is movable to a radially inward position relative to the engagement lug so as to hold the engagement lug in the radially outward position. The sleeve protects the slick joint from inwardly directed loading via the engagement lug when the retrievable cement bushing is subjected to differential pressures.
    Type: Application
    Filed: April 24, 2014
    Publication date: February 16, 2017
    Inventors: Asif Javed, James Hall
  • Patent number: 9255466
    Abstract: A downhole fluid diverter tool includes a tool body having a central bore therethrough and a bypass port formed in an outer diameter thereof, a spring-biased piston disposed within the tool body, a piston port in the spring-biased piston configured to axially align with the bypass port to control fluid flow outward from the central bore, and a rotatable ball valve aligned within the central bore of the tool body and configured to control fluid flow through the central bore, wherein the bypass port and the ball valve are configured to be cycled multiple times between open and closed positions while in a wellbore.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: February 9, 2016
    Assignee: Smith International, Inc.
    Inventor: Asif Javed
  • Patent number: 8527547
    Abstract: A method is provided for constructing an ancestral recombination graph. A value K is received representing K extant units. M non-mixing segments are also received. K vertices V are generated. K lineages for each of M trees are associated with each of the K vertices. An ancestral recombination graph is constructed. To construct the ancestral recombination graph, there is repeated, until only one lineage survives for each of the M trees, a process that includes the following. A tree is randomly selected tree. A first vertex v1 and a second vertex v2 are randomly selected. Two adjoining segments in the M non-mixing segments of the first and second vertices are combined together into a single vertex. A separate vertex is generated for at least one remaining segment in each of the M non-mixing segments of the first and second vertices. The vertices V are updated to be vertices that are non-interior vertices.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: September 3, 2013
    Assignee: International Business Machines Corporation
    Inventors: Laxmi P. Parida, Asif Javed
  • Publication number: 20120331008
    Abstract: A method is provided for constructing an ancestral recombination graph. A value K is received representing K extant units. M non-mixing segments are also received. K vertices V are generated. K lineages for each of M trees are associated with each of the K vertices. An ancestral recombination graph is constructed. To construct the ancestral recombination graph, there is repeated, until only one lineage survives for each of the M trees, a process that includes the following. A tree is randomly selected tree. A first vertex v1 and a second vertex v2 are randomly selected. Two adjoining segments in the M non-mixing segments of the first and second vertices are combined together into a single vertex. A separate vertex is generated for at least one remaining segment in each of the M non-mixing segments of the first and second vertices. The vertices V are updated to be vertices that are non-interior vertices.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 27, 2012
    Applicant: International Business Machines Corporation
    Inventors: Laxmi P. PARIDA, Asif Javed
  • Publication number: 20120018172
    Abstract: A downhole fluid diverter tool includes a tool body having a central bore therethrough and a bypass port formed in an outer diameter thereof, a spring-biased piston disposed within the tool body, a piston port in the spring-biased piston configured to axially align with the bypass port to control fluid flow outward from the central bore, and a rotatable ball valve aligned within the central bore of the tool body and configured to control fluid flow through the central bore, wherein the bypass port and the ball valve are configured to be cycled multiple times between open and closed positions while in a wellbore.
    Type: Application
    Filed: May 27, 2011
    Publication date: January 26, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: Asif Javed