Clay swelling inhibition using acrylic acid functionalized cellulose diacrylate carbon nanocomposite
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMobeen Murtaza, Azeem Rana, Sohail Nadeem, Muhammad Shahzad Kamal, Mohamed Mahmoud
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Abstract
A method of clay swelling inhibition includes contacting an aqueous drilling fluid with a subterranean geological formation. The aqueous drilling fluid includes an acrylic acid functionalized cellulose diacrylate carbon nanocomposite (AA-Cellulose-NC) material in an amount of 0.1 to 2 percent by weight (wt. %) of the aqueous drilling fluid. The AA-Cellulose-NC material is deposited on and binds to an inner surface of the subterranean geological formation to form a hydrophobic filter cake layer to reduce swelling of clay in the subterranean geological formation.
Claims19
A method of clay swelling inhibition, comprising:
- contacting an aqueous drilling fluid with a subterranean geological formation,
- wherein the aqueous drilling fluid comprises an acrylic acid functionalized cellulose diacrylate carbon nanocomposite material in an amount of 0.1 to 2 percent by weight (wt. %) of the aqueous drilling fluid,
- wherein the acrylic acid functionalized cellulose diacrylate carbon nanocomposite material is formed by reacting cellulose with acrylic acid, methyl methacrylate, and 2-ethyl hexyl acrylate then sonicating with carbon nanoparticles (CNPs);
- wherein the acrylic acid functionalized cellulose diacrylate carbon nanocomposite material is deposited on and binds to an inner surface of the subterranean geological formation to form a hydrophobic filter cake layer to reduce swelling of clay in the subterranean geological formation.
Dependencies are inferred from the claim text.