MODIFICATION OF BENTONITE PROPERTIES FOR DRILLING FLUIDS

Disclosed is a method for modifying bentonite to allow the bentonite to be useful in drilling mud applications. The method includes the steps of: preparing bentonite local to Saudi Arabia using raw water to remove contaminants from the bentonite; grinding the bentonite to a fine powder; sieving the...

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Hauptverfasser: Alfliow Akram A, Al-Mofleh Awad M, Al-Aamri Jamal M, Ahmad Zaidi Syed Rehan, Al-Tuwailib Amer A, Al-Shafei Mansour A
Format: Patent
Sprache:eng
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Zusammenfassung:Disclosed is a method for modifying bentonite to allow the bentonite to be useful in drilling mud applications. The method includes the steps of: preparing bentonite local to Saudi Arabia using raw water to remove contaminants from the bentonite; grinding the bentonite to a fine powder; sieving the fine powder to be between about 50 μm and about 150 μm in particle size to produce a sieved fine powder; mixing the sieved fine powder with polyanionic cellulose polymer to produce a modified bentonite composition; adding the modified bentonite composition to water until a homogeneous solution of modified bentonite in water is formed; and allowing the homogeneous solution of modified bentonite in water to rest for about 16 hours to form a composition useful in drilling mud applications.