Patents by Inventor Karim Shafik
Karim Shafik 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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Publication number: 20220292338Abstract: A computer implemented method for prediction of geomechanical performance including productivity index decline and completion integrity for a well or a hydrocarbon reservoir using a geomechanics informed machine intelligence (GIMI) algorithm. The method includes running a geomechanical reservoir simulator to generate training datasets for the hydrocarbon reservoir and incorporating physical models and identified variables into the GIMI algorithm. The method further includes training a neural network of the GIMI algorithm by using correlated training datasets that correlate to the physical models to produce a resulting prediction model and performing sensitivity analysis on the resulting prediction model. Additionally, the method includes identifying dominant variables for damage mechanisms through design of experiment statistics and performing history matching and blind test on the resulting prediction model.Type: ApplicationFiled: March 9, 2021Publication date: September 15, 2022Inventors: Rajesh S. Nair, Karim Shafik Zaki, Yan Li, Margaretha Catharina Maria Rijken, Velimir Valentinov Vesselinov
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Patent number: 11137334Abstract: In some embodiments, a system includes a housing having a cavity defined therein for holding a test sample, a first inlet in fluid communication with the cavity to deliver fluid to the test sample, a second inlet in fluid communication with the cavity to deliver fluid to the test sample, the first inlet configured to deliver fluid to the test sample in a direction substantially perpendicular to a direction that the second inlet is configured to deliver fluid to the test sample, an outlet in fluid communication with the cavity to receive fluid from the test sample, and a force applicator configured to apply compressive force to the test sample within the cavity. The force applicator forms a seal with the housing while applying compressive force to the test sample. The system also comprises at least one sensor configured to, while fluid flows from at least one of the inlets through the test sample to the outlet, determine a fluid characteristic, a test sample characteristic, or any combination thereof.Type: GrantFiled: June 25, 2019Date of Patent: October 5, 2021Assignee: CHEVRON U.S.A. INC.Inventors: Oya Aysen Karazincir, Yan Li, Karim Shafik Zaki, Wade H. Williams, Ruiting Wu, Yunhui Tan, Margaretha Catharina Maria Rijken, Russell Thomas Ewy
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Publication number: 20210096277Abstract: Embodiments of evaluating production performance for a wellbore while accounting for subterranean reservoir geomechanics and wellbore completion are provided. One embodiment includes generating the wellbore model; defining geomechanical properties for the subterranean reservoir in the near wellbore region and the far field region, and completion variables for the wellbore completion; and simulating fluid flow in the near wellbore region, the far field region, and the wellbore completion to evaluate production performance for the wellbore over a period of time. A permeability of the subterranean reservoir and a contact area between the wellbore and the subterranean reservoir are updated during simulation over the period of time.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Applicant: CHEVRON U.S.A.INC.Inventors: Karim Shafik ZAKI, Yan LI, Yunhui TAN, Ruiting WU, Margaretha Catharina Maria RIJKEN, Amr Said EL-FAYOUMI, Pietro VALSECCHI
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Publication number: 20190391065Abstract: In some embodiments, a system includes a housing having a cavity defined therein for holding a test sample, a first inlet in fluid communication with the cavity to deliver fluid to the test sample, a second inlet in fluid communication with the cavity to deliver fluid to the test sample, the first inlet configured to deliver fluid to the test sample in a direction substantially perpendicular to a direction that the second inlet is configured to deliver fluid to the test sample, an outlet in fluid communication with the cavity to receive fluid from the test sample, and a force applicator configured to apply compressive force to the test sample within the cavity. The force applicator forms a seal with the housing while applying compressive force to the test sample. The system also comprises at least one sensor configured to, while fluid flows from at least one of the inlets through the test sample to the outlet, determine a fluid characteristic, a test sample characteristic, or any combination thereof.Type: ApplicationFiled: June 25, 2019Publication date: December 26, 2019Inventors: Oya Aysen KARAZINCIR, Yan LI, Karim Shafik ZAKI, Wade H. WILLIAMS, Ruiting WU, Yunhui TAN, MARGARETHA Catharina Maria RIJKEN, Russell Thomas EWY
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Patent number: 7630354Abstract: A system and method for optimizing the use of packet-resources by releasing a hanging packet-data connection when a Mobile Station (MS) performs a power-down while involved in a dormant packet-data session. A Base Station Controller (BSC) sends a message to a Mobile Switching Center (MSC) indicating that the MS has powered down. The MSC determines that the packet-data session is dormant, and sends an instruction to the BSC in a class-0 connectionless transaction to release network resources associated with the packet-data session. The BSC then sends an instruction to a Packet Control Function (PCF) to tear down the associated resources, and the packet-data connection is released by a Packet Data Service Node (PDSN) in response to the tearing down of the resources by the PCF.Type: GrantFiled: May 9, 2005Date of Patent: December 8, 2009Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Lila Madour, Karim Shafik
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Publication number: 20050195787Abstract: A system and method for optimizing the use of packet-resources by releasing a hanging packet-data connection when a Mobile Station (MS) performs a power-down while involved in a dormant packet-data session. A Base Station Controller (BSC) sends a message to a Mobile Switching Center (MSC) indicating that the MS has powered down. The MSC determines that the packet-data session is dormant, and sends an instruction to the BSC in a class-0 connectionless transaction to release network resources associated with the packet-data session. The BSC then sends an instruction to a Packet Control Function (PCF) to tear down the associated resources, and the packet-data connection is released by a Packet Data Service Node (PDSN) in response to the tearing down of the resources by the PCF.Type: ApplicationFiled: May 9, 2005Publication date: September 8, 2005Inventors: Lila Madour, Karim Shafik
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Patent number: 6912214Abstract: A system and method for optimizing the use of packet-resources by releasing a hanging packet-data connection when a Mobile Station (MS) performs a power-down while involved in a dormant packet-data session. A Base Station Controller (BSC) sends a message to a Mobile Switching Center (MSC) indicating that the MS has powered down. The MSC determines that the packet-data session is dormant, and sends an instruction to the BSC in a class-0 connectionless transaction to release network resources associated with the packet-data session. The BSC then sends an instruction to a Packet Control Function (PCF) to tear down the associated resources, and the packet-data connection is released by a Packet Data Service Node (PDSN) in response to the tearing down of the resources by the PCF.Type: GrantFiled: December 20, 2000Date of Patent: June 28, 2005Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Lila Madour, Karim Shafik
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Patent number: 6907016Abstract: In a cellular telecommunications network, a method and system for performing dormant hand-off for a dormant Mobile Node (MN) between a source packet zone an a target packet zone, when the MN still has an active A10 and Point-to Point Protocol (PPP) connection in the target packet zone. According to the method, when handed-off, the MN issues an origination request with a Data Ready to Sent (DRS) parameter set to zero for the target Base Station Controller (BSC-T) which responsive to the request further sends an A9-setup-A8 registration request to a target Packet Control Function (PCF-T). The PCF-T then sends an A-11 Registration Request message to a Packet Data Service Node (PDSN-T) of the target packet zone. Responsive to the receipt of the Registration request, the PDSN-T sends an agent advertisement message to the MN and initiates the Mobile IP (MIP) registration procedure, and the MN can register the care-of-address information relating to the new serving PDSN, the PDSN-T, with its Home Agent (HA).Type: GrantFiled: April 3, 2001Date of Patent: June 14, 2005Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Lila Madour, Karim Shafik
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Patent number: 6834050Abstract: A Packet Core Function (PCF) and method of consistently selecting a Packet Data Service Node (PDSN) from a plurality of PDSNs in a packet data network to host a data session for a Mobile Node (MN). In a first embodiment, a static lookup table in the PCF is used to associate a list of identifiers for MNs and a list of the plurality of PDSNs in the network. The PCF obtains an identifier for the MN and utilizes the lookup table and a hash function to associate the identifier for the MN with a PDSN. The PDSN is then selected by the PCF to host the data session for the MN. In another embodiment, the PCF also includes a cache timer and a cache memory that stores the identifier for the MN and the IP address of the selected PDSN for a predetermined time period following the handoff of the MN to another PCF. If the MN returns to the PCF within the predetermined period of time, the PCF reselects the same PDSN to host the data session.Type: GrantFiled: September 8, 2000Date of Patent: December 21, 2004Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Lila Madour, Louis Segura, Karim Shafik
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Publication number: 20020141361Abstract: In a cellular telecommunications network, a method and system for performing dormant hand-off for a dormant Mobile Node (MN) between a source packet zone an a target packet zone, when the MN still has an active A10 and Point-to Point Protocol (PPP) connection in the target packet zone. According to the method, when handed-off, the MN issues an origination request with a Data Ready to Sent (DRS) parameter set to zero for the target Base Station Controller (BSC-T) which responsive to the request further sends an A9-setup-A8 registration request to a target Packet Control Function (PCF-T). The PCF-T then sends an A-11 Registration Request message to a Packet Data Service Node (PDSN-T) of the target packet zone. Responsive to the receipt of the Registration request, the PDSN-T sends an agent advertisement message to the MN and initiates the Mobile IP (MIP) registration procedure, and the MN can register the care-of-address information relating to the new serving PDSN, the PDSN-T, with its Home Agent (HA).Type: ApplicationFiled: April 3, 2001Publication date: October 3, 2002Inventors: Lila Madour, Karim Shafik
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Publication number: 20010050907Abstract: A system and method for optimizing the use of packet-resources by releasing a hanging packet-data connection when a Mobile Station (MS) performs a power-down while involved in a dormant packet-data session. A Base Station Controller (BSC) sends a message to a Mobile Switching Center (MSC) indicating that the MS has powered down. The MSC determines that the packet-data session is dormant, and sends an instruction to the BSC in a class-0 connectionless transaction to release network resources associated with the packet-data session. The BSC then sends an instruction to a Packet Control Function (PCF) to tear down the associated resources, and the packet-data connection is released by a Packet Data Service Node (PDSN) in response to the tearing down of the resources by the PCF.Type: ApplicationFiled: December 20, 2000Publication date: December 13, 2001Inventors: Lila Madour, Karim Shafik