Invention Grant
- Patent Title: Method for making and using a drilling fluid
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Application No.: US17101445Application Date: 2020-11-23
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Publication No.: US11591506B2Publication Date: 2023-02-28
- Inventor: Stefan Alexandru Stoian , Carl Keith Smith
- Applicant: CANADIAN ENERGY SERVICES L.P.
- Applicant Address: CA Calgary
- Assignee: CANADIAN ENERGY SERVICES L.P.
- Current Assignee: CANADIAN ENERGY SERVICES L.P.
- Current Assignee Address: CA Calgary
- Agency: Bennett Jones LLP
- Main IPC: C09K8/487
- IPC: C09K8/487 ; C09K8/16 ; C09K8/20 ; E21B21/00 ; E21B21/06
Abstract:
A drilling fluid and method for drilling in a coal containing formation. The method includes: providing a mixed metal-viscosified drilling fluid including at least 1% potassium salt; circulating the drilling fluid through the well; and drilling into a coal seam.
Public/Granted literature
- US20210071058A1 METHOD FOR MAKING AND USING A DRILLING FLUID Public/Granted day:2021-03-11
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