Patents by Inventor David Carbajal

David Carbajal 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).

  • Publication number: 20240114370
    Abstract: Systems, methods and apparatus are disclosed for automatic signal detection in an RF environment. An apparatus comprises at least one receiver and at least one processor coupled with at least one memory. The apparatus is at the edge of a communication network. The apparatus sweeps and learns the RF environment in a predetermined period based on statistical learning techniques, thereby creating learning data. The apparatus forms a knowledge map based on the learning data, scrubs a real-time spectral sweep against the knowledge map, and creates impressions on the RF environment based on a machine learning algorithm. The apparatus is operable to detect at least one signal in the RF environment.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 4, 2024
    Applicant: Digital Global Systems, Inc.
    Inventors: David William Kleinbeck, Ronald C. Dzierwa, Daniel Carbajal
  • Patent number: 11943737
    Abstract: Apparatus and methods for identifying a wireless signal-emitting device are disclosed. The apparatus is configured to sense and measure wireless communication signals from signal-emitting devices in a spectrum. The apparatus is operable to automatically detect a signal of interest from the wireless signal-emitting device and create a signal profile of the signal of interest; compare the signal profile with stored device signal profiles for identification of the wireless signal-emitting device; and calculate signal degradation data for the signal of interest based on information associated with the signal of interest in a static database including noise figure parameters of a wireless signal-emitting device outputting the signal of interest. The signal profile of the signal of interest, profile comparison result, and signal degradation data are stored in the apparatus.
    Type: Grant
    Filed: September 28, 2023
    Date of Patent: March 26, 2024
    Assignee: DIGITAL GLOBAL SYSTEMS, INC.
    Inventors: Ronald C. Dzierwa, Daniel Carbajal, David William Kleinbeck
  • Patent number: 11930382
    Abstract: Systems, methods and apparatus for spectrum data management for a radio frequency (RF) environment are disclosed. An apparatus comprises at least one receiver, an automatic signal detection (ASD) module, and a learning and conflict detection engine. The apparatus is at the edge of a communication network. The at least one receiver processes RF energy received from the RF environment, thereby generating processed data. The ASD module is configured to extract meta data and detect anomaly based on the processed data. The learning and conflict detection engine is configured for conflict recognition and anomaly identification based on the processed data. The apparatus is operable to generate at least one report for the RF environment.
    Type: Grant
    Filed: May 3, 2023
    Date of Patent: March 12, 2024
    Assignee: DIGITAL GLOBAL SYSTEMS, INC.
    Inventors: David William Kleinbeck, Ronald C. Dzierwa, Daniel Carbajal
  • Patent number: 7645723
    Abstract: A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluid is especially advantageous for use in deep water wells because the fluid exhibits minimal difference between downhole equivalent circulating density and surface density notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluid, the fluid makes an environmentally acceptable and regulatory compliant invert emulsion drilling fluid. The fluid preferably contains no organophilic clays.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: January 12, 2010
    Assignee: Halliburton Energy Services
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal
  • Patent number: 7547663
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: June 16, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale E. Jamison
  • Patent number: 7534743
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: May 19, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale E. Jamison
  • Patent number: 7488704
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: February 10, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale E. Jamison
  • Patent number: 7462580
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 9, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale E. Jamison
  • Patent number: 7456135
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: November 25, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale E. Jamison
  • Patent number: 7439210
    Abstract: An inhibitive water-based polymer mud system and method for using the system in drilling and in stabilizing wellbores is disclosed for use in water sensitive formations as an alternative to oil-based muds. The system comprises a non-ionic low molecular weight polyacrylamide in combination with a non-ionic high molecular weight polyacrylamide, preferably long chain alcohol and poly anionic cellulose.
    Type: Grant
    Filed: April 24, 2004
    Date of Patent: October 21, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gary C. West, Ernest Len Grebe, David Carbajal
  • Publication number: 20080032900
    Abstract: A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluid is especially advantageous for use in deep water wells because the fluid exhibits minimal difference between downhole equivalent circulating density and surface density notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluid, the fluid makes an environmentally acceptable and regulatory compliant invert emulsion drilling fluid. The fluid preferably contains no organophilic clays.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 7, 2008
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal
  • Patent number: 7278485
    Abstract: A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluid is especially advantageous for use in deep water wells because the fluid exhibits minimal difference between downhole equivalent circulating density and surface density notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluid, the fluid makes an environmentally acceptable and regulatory compliant invert emulsion drilling fluid. The fluid preferably contains no organophilic clays.
    Type: Grant
    Filed: September 4, 2004
    Date of Patent: October 9, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal
  • Publication number: 20070082822
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Application
    Filed: December 5, 2006
    Publication date: April 12, 2007
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale Jamison
  • Publication number: 20070078060
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Application
    Filed: December 5, 2006
    Publication date: April 5, 2007
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale Jamison
  • Publication number: 20070078062
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Application
    Filed: December 5, 2006
    Publication date: April 5, 2007
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale Jamison
  • Publication number: 20070078061
    Abstract: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.
    Type: Application
    Filed: December 5, 2006
    Publication date: April 5, 2007
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal, Ian Robb, Dale Jamison
  • Publication number: 20060111245
    Abstract: Methods and compositions for use in such methods are provided for drilling, running casing in, and/or cementing a borehole in a subterranean formation using aqueous based drilling fluids. The drilling fluids are thinned or dispersed with a blend of non chrome, ferro lignosulfonate and acrylate copolymer with one or more acrylo amido propane sulfonate functional groups, at a pH in the range of about 8.0 to about 10.5. The drilling fluids do not contain heavy metals and are rheologically tolerant to contaminants such as cement, anhydrite and sodium and temperatures as high as about 350° F.
    Type: Application
    Filed: November 23, 2004
    Publication date: May 25, 2006
    Inventors: David Carbajal, Jeff Kirsner
  • Publication number: 20050239663
    Abstract: An inhibitive water-based polymer mud system and method for using the system in drilling and in stabilizing wellbores is disclosed for use in water sensitive formations as an alternative to oil-based muds. The system comprises a non-ionic low molecular weight polyacrylamide in combination with a non-ionic high molecular weight polyacrylamide, preferably long chain alcohol and poly anionic cellulose.
    Type: Application
    Filed: April 24, 2004
    Publication date: October 27, 2005
    Inventors: Gary West, Ernest Grebe, David Carbajal
  • Patent number: 6887832
    Abstract: A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluid is especially advantageous for use in deep water wells because the fluid exhibits minimal difference between downhole equivalent circulating density and surface density notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluid, the fluid makes an environmentally acceptable and regulatory compliant invert emulsion drilling fluid. The fluid preferably contains no organophilic clays.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: May 3, 2005
    Assignee: Halliburton Energy Service,s Inc.
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal
  • Publication number: 20050032652
    Abstract: A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluid is especially advantageous for use in deep water wells because the fluid exhibits minimal difference between downhole equivalent circulating density and surface density notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluid, the fluid makes an environmentally acceptable and regulatory compliant invert emulsion drilling fluid. The fluid preferably contains no organophilic clays.
    Type: Application
    Filed: September 4, 2004
    Publication date: February 10, 2005
    Inventors: Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, David Carbajal