Patents by Inventor Vikram Rao
Vikram Rao 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: 7225879Abstract: An assembly and methods for constructing a MONOWELL includes a monodiameter casing disposed in a monodiameter wellbore having diametric efficiency with a monobore production delivery system disposed within the monodiameter casing. An assembly for constructing a monodiameter wellbore includes a bottomhole assembly having a overgauge hole drilling member, a directional steering assembly, a measurement while drilling tool, and a logging while drilling tool; a work string attached to the bottomhole assembly and extending to the surface; drilling fluids flowing through the work string and bottomhole assembly; chemical casing casing the borehole; expandable casing disposed in the wellbore; and a sealing composition disposed between the expandable casing and the wellbore.Type: GrantFiled: June 15, 2005Date of Patent: June 5, 2007Assignee: Halliburton Energy Services, Inc.Inventors: Glenda Wylie, Frank Zamora, Beegamudre N. Murali, James B. Terry, Lance Everett Brothers, Anthony Vann Palmer, Baireddy R. Reddy, Larry S. Eoff, Jimmie D. Weaver, John M. Wilson, Denise Berryhill, Russell M. Fitsgerald, Anne M. Culotta, M. Vikram Rao, Roger Boulton, Chen-Kang David Chen, Thomas M. Gaynor, John Hardin, Dan Gleitman, Colin Walker
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Patent number: 7213643Abstract: A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. A gauge section 34 is secured to the bit 16 has a uniform diameter bearing surface along an axial length of at least 60% of the bit diameter. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. After drilling a section of the well with the BHA according to the present invention, a tubular may be inserted in the well by passing the tubular through an upper tubular, then the inserted tubular expanded while downhole to a diameter substantially equal to the expanded tubular.Type: GrantFiled: April 23, 2003Date of Patent: May 8, 2007Assignee: Halliburton Energy Services, Inc.Inventors: Chen-Kang D. Chen, Daniel D. Gleitman, M. Vikram Rao
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Patent number: 7147066Abstract: A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor (PDM) 12 or a rotary steerable device (RSD) 110 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing 14 may have a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 may have a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and/or rotation of the RSD from the surface.Type: GrantFiled: August 29, 2002Date of Patent: December 12, 2006Assignee: Halliburton Energy Services, Inc.Inventors: Chen-Kang D. Chen, Thomas M. Gaynor, Daniel D. Gleitman, John R. Hardin, Jr., Colin Walker, M. Vikram Rao, Roger Boulton
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Patent number: 7121352Abstract: One or more subterranean zones are isolated from one or more other subterranean zones using a combination of solid tubulars and perforated tubulars.Type: GrantFiled: July 14, 2003Date of Patent: October 17, 2006Assignee: Enventure Global TechnologyInventors: Robert Lance Cook, Kevin Karl Waddell, Lev Ring, David Paul Brisco, Vikram Rao
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Publication number: 20060162937Abstract: A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.Type: ApplicationFiled: June 24, 2003Publication date: July 27, 2006Inventors: Scott Costa, Joel Hockaday, Kevin Waddell, Lev Ring, Michael Bullock, Robert Cook, Larry Kendziora, David Brisco, Tance Jackson, Vikram Rao
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Patent number: 7066271Abstract: An improved system and method is disclosed for expanding a fluid permeable tubular downhole in an open hole completion. A high quality borehole is first drilled using a bottomhole assembly having a long gauge bit and a short bit-to-bend ratio. A fluid-permeable tubular is then inserted into an open-hole portion of the wellbore and preferably expanded in place. The expandable tubular may include an external filtering medium. Hydrocarbons may pass from the formation through the expanded fluid permeable tubular and into the borehole, to be recovered.Type: GrantFiled: November 24, 2003Date of Patent: June 27, 2006Assignee: Halliburton Energy Services, Inc.Inventors: ChenKang David Chen, Daniel David Gleitman, M. Vikram Rao
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Patent number: 7066284Abstract: An assembly and methods for constructing a MONOWELL includes a monodiameter casing disposed in a monodiameter wellbore having diametric efficiency with a monobore production delivery system disposed within the monodiameter casing. An assembly for constructing a monodiameter wellbore includes a bottomhole assembly having a overgauge hole drilling member, a directional steering assembly, a measurement while drilling tool, and a logging while drilling tool; a work string attached to the bottomhole assembly and extending to the surface; drilling fluids flowing through the work string and bottomhole assembly; chemical casing casing the borehole; expandable casing disposed in the wellbore; and a sealing composition disposed between the expandable casing and the wellbore.Type: GrantFiled: November 13, 2002Date of Patent: June 27, 2006Assignee: Halliburton Energy Services, Inc.Inventors: Glenda Wylie, Frank Zamora, Beegamudre N. Murali, James B. Terry, Lance Everett Brothers, Anthony Vann Palmer, Baireddy R. Reddy, Larry S. Eoff, Jimmie D. Weaver, John M. Wilson, Denise Berryhill, Russell M. Fitsgerald, M. Vikram Rao, Anne M. Culotta
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Publication number: 20060113085Abstract: A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.Type: ApplicationFiled: July 1, 2003Publication date: June 1, 2006Inventors: Scott Costa, Joel Hockaday, Kevin Waddell, Ley Ring, Michael Bullock, Robert Cook, Larry Kendziora, David Brisco, Tance Jackson, Vikram Rao
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Patent number: 7040404Abstract: Methods and compositions are provided for sealing an expandable tubular in a wellbore wherein the methods basically comprise placing the expandable tubular in the wellbore, placing a resilient sealing composition into the wellbore, expanding the expandable tubular and allowing the sealing composition to set in the wellbore.Type: GrantFiled: September 13, 2002Date of Patent: May 9, 2006Assignee: Halliburton Energy Services, Inc.Inventors: Lance E. Brothers, M. Vikram Rao, Anne M. Culotta
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Publication number: 20050241855Abstract: An assembly and methods for constructing a MONOWELL includes a monodiameter casing disposed in a monodiameter wellbore having diametric efficiency with a monobore production delivery system disposed within the monodiameter casing. An assembly for constructing a monodiameter wellbore includes a bottomhole assembly having a overgauge hole drilling member, a directional steering assembly, a measurement while drilling tool, and a logging while drilling tool; a work string attached to the bottomhole assembly and extending to the surface; drilling fluids flowing through the work string and bottomhole assembly; chemical casing casing the borehole; expandable casing disposed in the wellbore; and a sealing composition disposed between the expandable casing and the wellbore.Type: ApplicationFiled: June 15, 2005Publication date: November 3, 2005Applicant: Halliburton Energy Services, Inc.Inventors: Glenda Wylie, Frank Zamora, Beegamudre Murali, James Terry, Lance Brothers, Anthony Palmer, Baireddy Reddy, Larry Eoff, Jemmie Weaver, John Wilson, Denise Berryhill, Russell Fitsgerald, Anne Culotta, M. Vikram Rao, Roger Boulton, Chen-Kang Chen, Thomas Gaynor, John Hardin, Daniel Gleitman, Colin Walker
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Patent number: 6931378Abstract: Methods and systems for collecting, managing, distributing and updating geophysical data primarily for E&P companies include in one embodiment the sale of subscriptions entitling paid subscribers access to all subscribed data including both preview and full data. Initial and subsequent data providers are preferably compensated from subscriber fees and may be compensated based on relative subscriber use of data. Data subscriptions can include for subscribers the right to vote or otherwise provide input relating to desired data updates. Data updates are preferably purchased based on competitive bids. The inventive systems and methods diminish much of the risk and uncertainty associated with the collection, management, distribution and updating of geophysical data under current methodologies, making the process more efficient and cost-effective for participating parties.Type: GrantFiled: December 10, 2001Date of Patent: August 16, 2005Assignee: Halliburton Energy Services, Inc.Inventors: M. Vikram Rao, Jimmy R. Coe, John W. Gibson, Daniel D. Gleitman, Sharon Rector
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Patent number: 6877570Abstract: A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. The motor housing is preferably run slick, and a gauge section 36 secured to the pilot bit 18 has a uniform diameter bearing surface along an axial length of at least 60% of the pilot bit diameter. The bit or reamer 16 has a bit face defining the cutting diameter of the drilled hole. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. The downhole motor, pilot bit and bit may be retrieved from the well while leaving the casing string in the well.Type: GrantFiled: December 16, 2002Date of Patent: April 12, 2005Assignee: Halliburton Energy Services, Inc.Inventors: Chen-Kang D. Chen, M. Vikram Rao
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Publication number: 20040211570Abstract: A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. A gauge section 34 is secured to the bit 16 has a uniform diameter bearing surface along an axial length of at least 60% of the bit diameter. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. After drilling a section of the well with the BHA according to the present invention, a tubular may be inserted in the well by passing the tubular through an upper tubular, then the inserted tubular expanded while downhole to a diameter substantially equal to the expanded tubular.Type: ApplicationFiled: April 23, 2003Publication date: October 28, 2004Inventors: Chen-Kang D. Chen, Daniel D. Gleitman, M. Vikram Rao
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Patent number: 6791469Abstract: A method for improving ROP and reducing hazards in drilling subterranean wells by using an acoustical system 15 to look ahead of the drill bit 14, detects and analyzes geologic features ahead of the bit 14 which may be qualified as drilling hazards 17. Detection of such hazards 17 may facilitate use of more aggressively penetrating bits 14 such as PDC bits as opposed to roller cone bits. In addition, other drilling parameters may be adjusted to improve ROP due to the ability to timely respond to identified hazards 17 before they may be detrimentally encountered by the bit 14. The acoustic system 15 may look ahead of the bit 14 by at least 100 meters, using propagated acoustic waves 19 to locate changes in acoustic impedance which may represent drilling hazards 17. In addition, bulk resistivity ahead of the bit 14 may also be measured and used to locate drilling hazards 17.Type: GrantFiled: October 4, 2002Date of Patent: September 14, 2004Assignee: Halliburton Energy ServicesInventors: M. Vikram Rao, Paul F. Rodney
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Publication number: 20040149431Abstract: An assembly and methods are disclosed for constructing a Monowell having a monodiameter casing disposed in a monodiameter wellbore having diametric efficiency with a monobore production delivery system disposed within the monodiameter casing. An assembly for constructing a monodiameter wellbore includes a bottomhole assembly having a overgauge hole drilling member, a directional steering assembly, a measurement while drilling tool, and a logging while drilling tool; a work string attached to the bottomhole assembly and extending to the surface; drilling fluids flowing through the work string and bottomhole assembly; chemical casing casing the borehole; expandable casing disposed in the wellbore; and a sealing composition disposed between the expandable casing and the wellbore.Type: ApplicationFiled: November 13, 2002Publication date: August 5, 2004Applicant: Halliburton Energy Services, Inc.Inventors: Glenda Wylie, Frank Zamora, Beegamudre N. Murali, James B. Terry, Donald L. Whitfill, Lance Everett Brothers, Anthony Vann Palmer, Baireddy R. Reddy, Larry S. Eoff, Jimmie D. Weaver, John M. Wilson, Russell M. Fitsgerald, M. Vikram Rao, Anne M. Culotta, Roger Boulton, Chen-Kang David Chen, Thomas M. Gaynor, John Hardin, Dan Gleitman, Colin Walker
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Publication number: 20040123983Abstract: One or more subterranean zones are isolated from one or more other subterranean zones using a combination of solid tubulars and perforated tubulars.Type: ApplicationFiled: July 14, 2003Publication date: July 1, 2004Applicant: Enventure Global Technology L.L.C.Inventors: Robert Lance Cook, Kevin Karl Waddell, Lev Ring, David Paul Brisco, Vikram Rao
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Publication number: 20040112639Abstract: A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. The motor housing is preferably run slick, and a gauge section 36 secured to the pilot bit 18 has a uniform diameter bearing surface along an axial length of at least 60% of the pilot bit diameter. The bit or reamer 16 has a bit face defining the cutting diameter of the drilled hole. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. The downhole motor, pilot bit and-bit may be retrieved from the well while leaving the casing string in the well.Type: ApplicationFiled: December 16, 2002Publication date: June 17, 2004Inventors: Chen-Kang D. Chen, M. Vikram Rao
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Publication number: 20040093591Abstract: One embodiment of the present invention provides a system that generates prefetch instructions for indexed array references. Upon receiving code to be executed on a computer system, the system analyzes the code to identify candidate references to be prefetched, wherein the candidate references can include indexed array references that access a data array through an array of indices. Next, the system inserts prefetch instructions into the code in advance of the identified candidate references. If the identified candidate references include indexed array references, this insertion process involves, inserting an index prefetch instruction into the code, which prefetches a block of indices from the array of indices. It also involves inserting data prefetch instructions into the code, which prefetch data items in the data array pointed to by the block of indices.Type: ApplicationFiled: April 10, 2003Publication date: May 13, 2004Inventors: Spiros Kalogeropulos, Partha P. Tirumalai, Mahadevan Rajagopalan, Yonghong Song, Subbarao Vikram Rao
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Publication number: 20030116319Abstract: Methods and compositions are provided for sealing an expandable tubular in a wellbore wherein the methods basically comprise placing the expandable tubular in the wellbore, placing a resilient sealing composition into the wellbore, expanding the expandable tubular and allowing the sealing composition to set in the wellbore.Type: ApplicationFiled: September 13, 2002Publication date: June 26, 2003Inventors: Lance E. Brothers, M. Vikram Rao, Anne M. Culotta
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Patent number: 6581699Abstract: A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor (PDM) 12 or a rotary steerable device (RSD) 110 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing 14 may have a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 may have a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and/or rotation of the RSD from the surface.Type: GrantFiled: August 21, 1999Date of Patent: June 24, 2003Assignee: Halliburton Energy Services, Inc.Inventors: Chen-Kang D. Chen, Thomas M. Gaynor, Daniel D. Gleitman, John R. Hardin, Jr., Colin Walker, M. Vikram Rao, Roger Boulton