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US 2024/0141223 A1Published application
Environmentally friendly nanoshale inhibitor in aqueous-based wellbore fluids
AssigneeSaudi Arabian Oil Company
InventorsHassan Sakar Alqahtani, Mohammed Khaled Al-Arfaj, Mohammed Faisal Alhassni, Mohammed Abdullah Otaibi
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Abstract
A wellbore fluid composition includes an aqueous base fluid and mesoporous silica nanoparticles (MSNs). The MSNs are encapsulated in a surfactant. A method of drilling a wellbore includes circulating an aqueous drilling fluid into the wellbore while drilling and recovering shale cuttings from the aqueous drilling fluid. The aqueous drilling fluid includes mesoporous silica nanoparticles encapsulated by a surfactant.
Claims20
A wellbore fluid composition comprising:
- an aqueous base fluid;
- and
- mesoporous silica nanoparticles (MSNs), wherein the MSNs are encapsulated in a surfactant.
A method of drilling a wellbore, the method comprising:
- circulating an aqueous drilling fluid into the wellbore while drilling, wherein the aqueous drilling fluid comprises mesoporous silica nanoparticles (MSNs) encapsulated by a surfactant;
- and
- recovering shale cuttings from the aqueous drilling fluid.
Dependencies are inferred from the claim text.