Invention Grant
- Patent Title: Drilling fluid and method for drilling in coal-containing formations
-
Application No.: US13776914Application Date: 2013-02-26
-
Publication No.: US10738229B2Publication Date: 2020-08-11
- 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: C09K8/32
- IPC: C09K8/32 ; 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
- US20130225457A1 DRILLING FLUID AND METHOD FOR DRILLING IN COAL-CONTAINING FORMATIONS Public/Granted day:2013-08-29
Information query
