Patents by Inventor Darren Lee Miller
Darren Lee Miller 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: 20220364243Abstract: A method and system is disclosed for testing a cathodic protection system that protects a metallic structure with one or more DC power sources electrically connected to the metallic structure and an associated reference electrode. The metallic structure may be cathodically protected at multiple locations. A Cathodic Protection Waveform Monitoring Unit (CPWMU) operates independently from power cycling by the cathodic protection system to measure cathodic protection voltage levels by measuring, over one or more measurement time periods, a voltage differential between the metallic structure and its associated reference electrode, a plurality of times when power provided to the metallic structure is cycled on and off. The CPWMU includes digital storage to store values indicative of the measured voltage differentials over the measurement time period.Type: ApplicationFiled: May 27, 2022Publication date: November 17, 2022Applicant: Indrocorp Inc.Inventors: Darren Lee Miller, Michael William Novakowicz, Haydn Russell Wintersgill
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Patent number: 11346010Abstract: A method and system for testing a cathodic protection system that protects a metallic structure with one or more DC power sources electrically connected to the metallic structure and an associated reference electrode. A Cathodic Protection Waveform Monitoring Unit (CPWMU) operates independently from power cycling by the cathodic protection system to measure cathodic protection voltage levels by measuring, over one or more measurement time periods, a voltage differential between the metallic structure and its associated reference electrode, a plurality of times when power provided to the metallic structure is cycled on and off. The CPWMU includes digital storage to store values indicative of the measured voltage differentials over the measurement time period. A reader that may be remotely located from any CPWMU communicates with a number of CPWMU's within communication range to obtain the values stored in the CPWMUs.Type: GrantFiled: September 27, 2018Date of Patent: May 31, 2022Inventors: Darren Lee Miller, Michael William Novakowicz, Haydn Russell Wintersgill
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Publication number: 20190127861Abstract: A method and system for testing a cathodic protection system that protects a metallic structure with one or more DC power sources electrically connected to the metallic structure and an associated reference electrode. A Cathodic Protection Waveform Monitoring Unit (CPWMU) operates independently from power cycling by the cathodic protection system to measure cathodic protection voltage levels by measuring, over one or more measurement time periods, a voltage differential between the metallic structure and its associated reference electrode, a plurality of times when power provided to the metallic structure is cycled on and off. The CPWMU includes digital storage to store values indicative of the measured voltage differentials over the measurement time period. A reader that may be remotely located from any CPWMU communicates with a number of CPWMU's within communication range to obtain the values stored in the CPWMUs.Type: ApplicationFiled: September 27, 2018Publication date: May 2, 2019Applicant: Stratocom Solutions CorporationInventors: Darren Lee Miller, Michael William Novakowicz, Haydn Russell Wintersgill
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Patent number: 10113240Abstract: A method and system is disclosed for testing a cathodic protection system that protects a metallic structure with one or more DC power sources electrically connected to the metallic structure and an associated reference electrode. The metallic structure may be cathodically protected at multiple locations. A Cathodic Protection Waveform Monitoring Unit (CPWMU) operates independently from power cycling by the cathodic protection system to measure cathodic protection voltage levels by measuring, over one or more measurement time periods, a voltage differential between the metallic structure and its associated reference electrode, a plurality of times when power provided to the metallic structure is cycled on and off. The CPWMU includes digital storage to store values indicative of the measured voltage differentials over the measurement time period.Type: GrantFiled: February 16, 2017Date of Patent: October 30, 2018Assignee: Stratocom Solutions CorporationInventors: Darren Lee Miller, Michael William Novakowicz, Haydn Russell Wintersgill
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Publication number: 20180230605Abstract: A method and system is disclosed for testing a cathodic protection system that protects a metallic structure with one or more DC power sources electrically connected to the metallic structure and an associated reference electrode. The metallic structure may be cathodically protected at multiple locations. A Cathodic Protection Waveform Monitoring Unit (CPWMU) operates independently from power cycling by the cathodic protection system to measure cathodic protection voltage levels by measuring, over one or more measurement time periods, a voltage differential between the metallic structure and its associated reference electrode, a plurality of times when power provided to the metallic structure is cycled on and off. The CPWMU includes digital storage to store values indicative of the measured voltage differentials over the measurement time period.Type: ApplicationFiled: February 16, 2017Publication date: August 16, 2018Inventors: Darren Lee Miller, Michael William Novakowicz, Haydn Russell Wintersgill
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Publication number: 20150021035Abstract: A landing string for landing a tubing hanger in a tubing spool has flow lines for actuating annulus access valves. A tubing string depends from the tubing hanger, and projects into a wellbore lined with casing when the tubing hanger is landed. Piping outside of the tubing spool connects to a bore formed through the tubing spool to provide access to an annulus between the tubing string and casing. The annulus access valve is in the flow line to control flow to the annulus. The valve is driven by an actuator that is operated by fluid in a flow line ported through the landing string, and in communication with the tubing spool when the tubing hanger is landed.Type: ApplicationFiled: July 22, 2013Publication date: January 22, 2015Applicant: Vetco Gray U.K., LimitedInventor: Darren Lee Miller
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Patent number: 8800662Abstract: A subsea test tree control system provides operational control and power to subsea test tree equipment located within a subsea riser without an in riser umbilical to supply additional power to the subsea test tree control system. The subsea test tree control system includes a subsea horizontal subsea tree landed on a subsea wellhead, and a subsea control module communicatively coupled to the horizontal subsea tree. A subsea test tree stack is landed through the riser in the horizontal subsea tree. A subsea control module communication line extends through the horizontal subsea tree to terminate at a bore of the horizontal subsea tree proximate to the tubing hanger, and a riser string communication line communicatively couples to the subsea control module communication line to provide operational power and control the subsea test tree stack. Intervention workover control system umbilicals may bypass the subsea control module and directly connect to the subsea control module communication line.Type: GrantFiled: September 2, 2011Date of Patent: August 12, 2014Assignee: Vetco Gray Inc.Inventor: Darren Lee Miller
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Publication number: 20130056219Abstract: A subsea test tree control system provides operational control and power to subsea test tree equipment located within a subsea riser without an in riser umbilical to supply additional power to the subsea test tree control system. The subsea test tree control system includes a subsea horizontal subsea tree landed on a subsea wellhead, and a subsea control module communicatively coupled to the horizontal subsea tree. A subsea test tree stack is landed through the riser in the horizontal subsea tree. A subsea control module communication line extends through the horizontal subsea tree to terminate at a bore of the horizontal subsea tree proximate to the tubing hanger, and a riser string communication line communicatively couples to the subsea control module communication line to provide operational power and control the subsea test tree stack. Intervention workover control system umbilicals may bypass the subsea control module and directly connect to the subsea control module communication line.Type: ApplicationFiled: September 2, 2011Publication date: March 7, 2013Applicant: Vetco Gray Inc.Inventor: Darren Lee Miller