Patents by Inventor Antje M. Wierenga

Antje M. Wierenga 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).

  • Fluids and techniques for hydrocarbon well completion
    Publication number: 20030216263
    Abstract: The Invention relates to novel fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., “completion fluids”), in particular, fluids and techniques are disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating formed from drilling and production-related operations (“filtercake”); the techniques can be applied either by themselves or in conjunction with other completion operations, such as gravel packing; preferred embodiments are chelating agent and enzyme systems in a viscoelastic surfactant (VES) matrix.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 20, 2003
    Inventors: Raymond J. Tibbles, Mehmet Parlar, Frank F. Chang, Diankui Fu, Jonathan Mark Davison, Elizabeth W.A. Morris, Antje M. Wierenga, Palathinkara S. Vinod
  • Fluids and techniques for hydrocarbon well completion
    Patent number: 6638896
    Abstract: The Invention relates to fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., “completion fluids”), in particular, fluids and techniques are. disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating formed from drilling and production-related operations (“filtercake”); the techniques can be applied either by themselves or in conjunction with other completion operations, such as gravel packing; preferred embodiments are chelating agent and enzyme systems in a viscoelastic surfactant (VES) matrix.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: October 28, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Raymond J. Tibbles, Mehmet Parlar, Frank F. Chang, Diankui Fu, Jonathan Mark Davison, Elizabeth W. A. Morris, Antje M. Wierenga, Palathinkara S. Vinod
  • Fluids and techniques for hydrocarbon well completion
    Patent number: 6140277
    Abstract: The Invention relates to novel fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., "completion fluids"), in particular, fluids and techniques are disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating formed from drilling and production-related operations ("filtercake"); the techniques can be applied either by themselves or in conjunction with other completion operations, such as gravel packing; preferred embodiments are chelating agent and enzyme systems in a viscoelastic surfactant (VES) matrix.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: October 31, 2000
    Assignee: Schlumberger Technology Corporation
    Inventors: Raymond J. Tibbles, Mehmet Parlar, Frank F. Chang, Diankui Fu, Jonathan Mark Davison, Elizabeth W. A. Morris, Antje M. Wierenga, Palathinkara S. Vinod