Patents by Inventor Leo Richards

Leo Richards 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).

  • Releasable alloy system and method for well management
    Patent number: 11434716
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: September 6, 2022
    Assignee: BiSN Tec Ltd.
    Inventors: Paul Carragher, Leo Richards
  • Releasable alloy system and method for well management
    Publication number: 20210246758
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Application
    Filed: October 12, 2020
    Publication date: August 12, 2021
    Applicant: BiSN Tec Ltd
    Inventors: Paul Carragher, Leo Richards
  • Releasable alloy system and method for well management
    Patent number: 10801301
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: October 13, 2020
    Assignee: BiSN Tec Ltd
    Inventors: Paul Carragher, Leo Richards
  • Method and Apparatus for Use in Well Abandonment
    Publication number: 20200011150
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 9, 2020
    Applicant: BiSN Tec Ltd.
    Inventors: Paul Carragher, Leo Richards
  • Method and apparatus for use in well abandonment
    Patent number: 10329872
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Grant
    Filed: August 19, 2018
    Date of Patent: June 25, 2019
    Assignee: BiSN Tec Ltd
    Inventors: Paul Carragher, Leo Richards
  • Method and Apparatus for Use in Well Abandonment
    Publication number: 20190071950
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Application
    Filed: August 19, 2018
    Publication date: March 7, 2019
    Applicant: BiSN Tec Ltd
    Inventors: Paul Carragher, Leo Richards
  • Method and apparatus for use in well abandonment
    Patent number: 10053951
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: August 21, 2018
    Assignee: BiSN Tec Ltd
    Inventors: Paul Carragher, Leo Richards
  • Method and apparatus for use in well abandonment
    Patent number: 9708882
    Abstract: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: July 18, 2017
    Assignee: BISN OIL TOOLS
    Inventors: Paul Carragher, Leo Richards