Method for controlling lost circulation in well drilling

C - Chemistry – Metallurgy – 09 – K

Patent

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31/11

C09K 8/03 (2006.01)

Patent

CA 2017834

ICR 8150 METHOD OF CONTROLLING LOST CIRCULATION IN WELL DRILLING Abstract of the Disclosure Loss of drilling fluid into a subterranean formation penetrated in the drilling of a well is controlled by addition to the drilling fluid of a lost circulation material comprising petroleum coke.

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