Patents by Inventor John W. Mohr
John W. Mohr 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: 9187965Abstract: A method associated with the selection of tubulars for hydrocarbon production is described based upon evaluating the performance limits of threaded connections. Constituents of an evaluation group of threaded connections are determined and then a first group of the connections is evaluated via model analysis over a range of conditions. Then, physical testing on a first group of threaded connections in the evaluation group is conducted over that range of conditions. Once modeled, the results from the physical testing and the modeling analysis of the first group are compared to assess a characteristic performance factor for the first group. A second group of threaded connections are determined and the assessed performance factor from the first group is applied to a second group, and the performance limits of the second group are defined over the range of conditions based on this characteristic performance factor, without requiring testing the second group.Type: GrantFiled: October 17, 2013Date of Patent: November 17, 2015Assignee: ExxonMobil Upstream Research CompanyInventors: A. S. David Khemakhem, Mark W. Biegler, David A. Baker, Jason A. Burdette, Bruce A. Dale, John W. Mohr, Ismail Ceyhan, James Powers, James H. Myers, Marcus Asmann
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Publication number: 20140041864Abstract: A method associated with the selection of tubulars for hydrocarbon production is described based upon evaluating the performance limits of threaded connections. Constituents of an evaluation group of threaded connections are determined and then a first group of the connections is evaluated via model analysis over a range of conditions. Then, physical testing on a first group of threaded connections in the evaluation group is conducted over that range of conditions. Once modeled, the results from the physical testing and the modeling analysis of the first group are compared to assess a characteristic performance factor for the first group. A second group of threaded connections are determined and the assessed performance factor from the first group is applied to a second group, and the performance limits of the second group are defined over the range of conditions based on this characteristic performance factor, without requiring testing the second group.Type: ApplicationFiled: October 17, 2013Publication date: February 13, 2014Inventors: A.S. David Khemakhem, Mark W. Biegler, David A. Baker, Jason A. Burdette, Bruce A. Dale, John W. Mohr, Ismail Ceyhan, James Powers, James H. Myers, Marcus Asmann
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Patent number: 8590641Abstract: A method associated with the selection of tubulars for hydrocarbon production is described. In particular, the method is associated with the evaluation of performance limits of threaded connections. In this method, constituents of an evaluation group of threaded connections are determined via model analysis. Then, physical testing on a first group of threaded connections in the evaluation group is conducted. Modeling analysis on the first group and a second group of threaded connections is performed, wherein the second group are not physically tested. Once modeled, the results from the physical testing and the modeling analysis are compared to assess a characteristic performance factor for the first group. Then, the characteristic performance factor is applied to the second group, and the performance limits are defined based on this characteristic performance factor.Type: GrantFiled: November 20, 2006Date of Patent: November 26, 2013Assignee: ExxonMobil Upstream Research CompanyInventors: A. S. David Khemakhem, Mark W. Biegler, David A. Baker, Jason A. Burdette, Bruce A. Dale, John W. Mohr, Ismail Ceyhan, James Powers, James H. Myers, Marcus Asmann
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Patent number: 8517098Abstract: A method, system and apparatus associated with the production of hydrocarbons are described. The method includes disposing a plurality of sand control devices having a primary flow path and a secondary flowpath within a wellbore adjacent to a subsurface reservoir. A packer having primary and secondary flow paths is then coupled between two of the sand control devices such that the primary and secondary flow paths of the packer are in fluid flow communication with the primary and secondary flowpaths of the sand control devices. The packer is then set within an interval, which may be an open-hole section of the wellbore. With the packer set, gravel packing of the sand control devices in different intervals may be performed. The interval above the packer may be packed before the interval below the packer. A treatment fluid may then be injected into the wellbore via the secondary flow paths of the packer and sand control devices.Type: GrantFiled: December 15, 2006Date of Patent: August 27, 2013Assignee: ExxonMobil Upstream Research CompanyInventors: Bruce A. Dale, Michael D. Barry, Charles S. Yeh, Jon Blacklock, Darren F. Rosenbaum, Michael T. Hecker, David C. Haeberle, Manh V. Phi, Michael J. Siegman, John W. Mohr
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Patent number: 8301425Abstract: A method and apparatus for producing hydrocarbons is described. In the method, a failure mode for a well completion is identified. A numerical engineering model to describe an event that results in the failure mode is constructed. The numerical engineering model is converted into a response surface. Then, the response surface is associated with a user tool configured to provide the response surface for analysis of another well.Type: GrantFiled: July 6, 2006Date of Patent: October 30, 2012Assignee: ExxonMobil Upstream Research CompanyInventors: Bruce A. Dale, Rahul Pakal, David C. Haeberle, Jason A. Burdette, John W. Mohr, Darren F. Rosenbaum, Marcus Asmann, Scott R. Clingman, Brian W. Duffy, Timothy G. Benish
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Patent number: 7870898Abstract: Flow control systems and methods for use in hydrocarbon well operations include a tubular and a flow control apparatus. The tubular defines a well annulus and includes an outer member defining a flow conduit. Fluid communication between the well annulus and the flow conduit is provided by permeable portion(s) of the outer member. The flow control apparatus is disposed within the flow conduit and comprises conduit-defining and chamber-defining structural members. The conduit-defining structural member(s) is configured to divide the flow conduit into at least two flow control conduits. The chamber-defining structural member(s) is configured to divide at least one of the at least two flow control conduits into at least two flow control chambers. Each of the flow control chambers has at least one inlet and one outlet, each of which is adapted to allow fluid flow therethrough and to retain particles larger than a predetermined size.Type: GrantFiled: November 3, 2008Date of Patent: January 18, 2011Assignee: ExxonMobil Upstream Research CompanyInventors: Charles S. Yeh, Bruce A. Dale, John W. Mohr, Scott R. Clingman
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Publication number: 20100299111Abstract: A method and apparatus for producing hydrocarbons is described. In the method, a failure mode for a well completion is identified. A numerical engineering model to describe an event that results in the failure mode is constructed. The numerical engineering model is converted into a response surface. Then, the response surface is associated with a user tool configured to provide the response surface for analysis of another well.Type: ApplicationFiled: July 6, 2006Publication date: November 25, 2010Inventors: Bruce A. Dale, Rahul Pakal, David C. Haeberle, Jason A. Burdette, John W. Mohr, Darren F. Rosenbaum, Marcus Asmann, Scott R. Clingman, Brain W. Duffy, Timothy G. Benish
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Publication number: 20090272547Abstract: The method and apparatus can create excavation cavities suitable for drilling multilateral wellbores through the excavation using a kick-off. One embodiment of the method comprises isolating a wellbore at a determined location, excavating a downhole cavity in a wellbore above the determined location, and removing the apparatus for isolating the wellbore and the apparatus for excavating the downhole cavity from the wellbore to provide full access to the wellbore and the excavation cavity.Type: ApplicationFiled: July 13, 2009Publication date: November 5, 2009Inventors: Bruce A. Dale, John W. Mohr
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Publication number: 20090250926Abstract: A method associated with the selection of tubulars for hydrocarbon production is described. In particular, the method is associated with the evaluation of performance limits of threaded connections. In this method, constituents of an evaluation group of threaded connections are determined via model analysis. Then, physical testing on a first group of threaded connections in the evaluation group is conducted. Modeling analysis on the first group and a second group of threaded connections is performed, wherein the second group are not physically tested. Once modeled, the results from the physical testing and the modeling analysis are compared to assess a characteristic performance factor for the first group. Then, the characteristic performance factor is applied to the second group, and the performance limits are defined based on this characteristic performance factor.Type: ApplicationFiled: November 20, 2006Publication date: October 8, 2009Inventors: A. S. David Khemakhem, Mark W. Biegler, David A. Baker, Jason A. Burdette, Bruce A. Dale, John W. Mohr, Ismail Ceyhan, James Powers, James H. Myers, Marcus Asmann
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Patent number: 7575050Abstract: The method and apparatus can create excavation cavities suitable for drilling multilateral wellbores through the excavation using a kick-off. One embodiment of the method comprises isolating a wellbore at a determined location, excavating a downhole cavity in a wellbore above the determined location, and removing the apparatus for isolating the wellbore and the apparatus for excavating the downhole cavity from the wellbore to provide full access to the wellbore and the excavation cavity.Type: GrantFiled: January 22, 2004Date of Patent: August 18, 2009Assignee: ExxonMobil Upstream Research CompanyInventors: Bruce A. Dale, John W. Mohr
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Publication number: 20090120641Abstract: Flow control systems and methods for use in hydrocarbon well operations include a tubular and a flow control apparatus. The tubular defines a well annulus and includes an outer member defining a flow conduit. Fluid communication between the well annulus and the flow conduit is provided by permeable portion(s) of the outer member. The flow control apparatus is disposed within the flow conduit and comprises conduit-defining and chamber-defining structural members. The conduit-defining structural member(s) is configured to divide the flow conduit into at least two flow control conduits. The chamber-defining structural member(s) is configured to divide at least one of the at least two flow control conduits into at least two flow control chambers. Each of the flow control chambers has at least one inlet and one outlet, each of which is adapted to allow fluid flow therethrough and to retain particles larger than a predetermined size.Type: ApplicationFiled: November 3, 2008Publication date: May 14, 2009Inventors: Charles S. Yeh, Bruce A. Dale, John W. Mohr, Scott R. Clingman
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Patent number: 7464752Abstract: A wellbore apparatus and method suitable for either wellbore completions and production. The completion and production apparatus comprises at least one primary flow joint, the primary flow joint comprising at least one three-dimensional surface defining a body capable of fluid flow with at least one permeable surface, and at least one secondary flow joint, the secondary flow joint comprising at least one three-dimensional surface defining a body capable of fluid flow with at least one permeable surface. The method comprises providing a completion and production apparatus comprising at least one primary flow joint and one secondary flow joint wherein multiple fluid flow paths can be provided. The production completion apparatus may be installed into the wellbore to provide at least two flowpaths in the wellbore during well completion, injection and production.Type: GrantFiled: January 20, 2004Date of Patent: December 16, 2008Assignee: ExxonMobil Upstream Research CompanyInventors: Bruce A. Dale, John W. Mohr, Charles S. Yeh
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Patent number: 6779604Abstract: A gravel pack is formed using a mixture of a solid deformable material and conventional gravel pack gravel. In the event of reservoir compaction, such a gravel pack will reduce the transmission of forces from the subterranean formation to the wellbore completion hardware, thereby significantly extending the life of a well. Deformable materials selected for mixing with conventional gravel may be elastically flexible, plastically deformable, or crushable solid materials or particles.Type: GrantFiled: May 21, 2001Date of Patent: August 24, 2004Assignee: ExxonMobil Upstream Research CompanyInventors: Mark W. Biegler, John W. Mohr, Roger A. Frederickson
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Publication number: 20020011334Abstract: A gravel pack is formed using a mixture of a solid deformable material and conventional gravel pack gravel. In the event of reservoir compaction, such a gravel pack will reduce the transmission of forces from the subterranean formation to the wellbore completion hardware, thereby significantly extending the life of a well. Deformable materials selected for mixing with conventional gravel may be elastically flexible, plastically deformable, or crushable solid materials or particles.Type: ApplicationFiled: May 21, 2001Publication date: January 31, 2002Inventors: Mark W. Biegler, John W. Mohr, Roger A. Frederickson