中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.017 seconds)

    METHOD TO USE LOSS CIRCULATION MATERIAL COMPOSITION COMPRISING ACIDIC NANOPARTICLE-BASED DISPERSION AND FORMATE BASED ACTIVATOR IN DOWNHOLE CONDITIONS
    5.
    发明申请
    METHOD TO USE LOSS CIRCULATION MATERIAL COMPOSITION COMPRISING ACIDIC NANOPARTICLE-BASED DISPERSION AND FORMATE BASED ACTIVATOR IN DOWNHOLE CONDITIONS 有权

    公开(公告)号：US20250002775A1

    公开(公告)日：2025-01-02

    申请号：US18344743

    申请日：2023-06-29

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Vikrant Wagle ,  Rajendra Arunkumar Kalgaonkar ,  Abdullah Al-Yami ,  Mohammad Alharthi

    IPC: C09K8/76

    Abstract: A loss circulation material includes an acidic nanosilica dispersion and a formate activator, which may be present in an amount in a range of 1 wt % to 40 wt % of the loss circulation material. A method to control lost circulation in a lost circulation zone in a wellbore includes introducing an acidic nanosilica dispersion into the wellbore, introducing a formate activator into the wellbore, contacting the acidic nanosilica dispersion with the formate activator, thereby forming a loss circulation material composition, and forming a gelled solid from the loss circulation material in the lost circulation zone. A method of controlling lost circulation in a lost circulation zone in a wellbore includes introducing a loss circulation material comprising an acidic nanosilica dispersion and a formate activator into the wellbore, such that they contact the lost circulation zone, and forming a gelled solid from the loss circulation material in the lost circulation zone.

    Methods of treating lost circulation zones
    7.
    发明授权
    Methods of treating lost circulation zones 有权

    公开(公告)号：US11827841B2

    公开(公告)日：2023-11-28

    申请号：US17560388

    申请日：2021-12-23

    Applicant: Saudi Arabian Oil Company

    Inventor： Vikrant Wagle ,  Abdullah Al-Yami ,  Ali Al Safran ,  Mohammad Alharthi

    IPC: C09K8/518 ,  E21B33/138 ,  C09K8/502

    CPC classification number: C09K8/518 ,  C09K8/502 ,  E21B33/138

    Abstract: A method of treating a lost circulation zone may include positioning a cured lost circulation material composition in the lost circulation zone of a subterranean natural resource well to produce a barrier operable to mitigate wellbore fluids from passing into the lost circulation zone. The cured lost circulation material composition may be a foam comprising a gas phase and a liquid phase. The cured lost circulation material composition may include a cured bisphenol epoxy resin, one or more surfactants positioned at the interface of the liquid phase and the gas phase of the foam and carbon dioxide in the gas phase of the foam. The cured bisphenol epoxy resin may be a reaction product of a bisphenol epoxy resin system including uncured bisphenol epoxy resin, one or more curing agents, and optionally, a diluent. The carbon dioxide may be a reaction product of one or more carbon dioxide gas-generating compounds.

    METHODS OF TREATING LOST CIRCULATION ZONES
    8.
    发明公开
    METHODS OF TREATING LOST CIRCULATION ZONES 审中-公开

    公开(公告)号：US20230203363A1

    公开(公告)日：2023-06-29

    申请号：US17560388

    申请日：2021-12-23

    Applicant: Saudi Arabian Oil Company

    Inventor： Vikrant Wagle ,  Abdullah Al-Yami ,  Ali Al Safran ,  Mohammad Alharthi

    IPC: C09K8/518 ,  C09K8/502 ,  E21B33/138

    CPC classification number: C09K8/518 ,  C09K8/502 ,  E21B33/138

    Abstract: A method of treating a lost circulation zone may include positioning a cured lost circulation material composition in the lost circulation zone of a subterranean natural resource well to produce a barrier operable to mitigate wellbore fluids from passing into the lost circulation zone. The cured lost circulation material composition may be a foam comprising a gas phase and a liquid phase. The cured lost circulation material composition may include a cured bisphenol epoxy resin, one or more surfactants positioned at the interface of the liquid phase and the gas phase of the foam and carbon dioxide in the gas phase of the foam. The cured bisphenol epoxy resin may be a reaction product of a bisphenol epoxy resin system including uncured bisphenol epoxy resin, one or more curing agents, and optionally, a diluent. The carbon dioxide may be a reaction product of one or more carbon dioxide gas-generating compounds.

Patent Agency Ranking