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).
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Patent number: 11905801Abstract: A system for hanging tubing in a wellbore includes a tubular body, a plurality of lower slips mounted along the tubular body, a spring cone disposed around the tubular body and fixed to the plurality of lower slips, the spring cone comprising a lock ring having a ratchet profile, and a packer element disposed around the tubular body, below and adjacent the spring cone.Type: GrantFiled: June 29, 2020Date of Patent: February 20, 2024Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Ming Zhao, Asif Javed, James Hall
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Publication number: 20220341297Abstract: A system for hanging tubing in a wellbore includes a tubular body, a plurality of lower slips mounted along the tubular body, a spring cone disposed around the tubular body and fixed to the plurality of lower slips, the spring cone comprising a lock ring having a ratchet profile, and a packer element disposed around the tubular body, below and adjacent the spring cone.Type: ApplicationFiled: June 29, 2020Publication date: October 27, 2022Inventors: Ming Zhao, Asif Javed, James Hall
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Patent number: 10301901Abstract: 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: GrantFiled: November 20, 2018Date of Patent: May 28, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Asif Javed, James Hall
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Publication number: 20190085653Abstract: 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: ApplicationFiled: November 20, 2018Publication date: March 21, 2019Inventors: Asif Javed, James Hall
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Patent number: 10145201Abstract: 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: GrantFiled: April 24, 2014Date of Patent: December 4, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Asif Javed, James Hall
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Publication number: 20170044862Abstract: 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: ApplicationFiled: April 24, 2014Publication date: February 16, 2017Inventors: Asif Javed, James Hall
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Patent number: 9255466Abstract: 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: GrantFiled: May 27, 2011Date of Patent: February 9, 2016Assignee: Smith International, Inc.Inventor: Asif Javed
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Patent number: 8527547Abstract: 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: GrantFiled: June 27, 2011Date of Patent: September 3, 2013Assignee: International Business Machines CorporationInventors: Laxmi P. Parida, Asif Javed
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Publication number: 20120331008Abstract: 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: ApplicationFiled: June 27, 2011Publication date: December 27, 2012Applicant: International Business Machines CorporationInventors: Laxmi P. PARIDA, Asif Javed
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Publication number: 20120018172Abstract: 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: ApplicationFiled: May 27, 2011Publication date: January 26, 2012Applicant: SMITH INTERNATIONAL, INC.Inventor: Asif Javed