ULTRA-HIGH DENSITY WELLBORE FLUIDS PRODUCED THROUGH ALKALIZATION OF AQUEOUS ISOPOLYMETALATE SOLUTIONS
Dossier Overview
Applicant
Saudi Arabian Oil Company
Inventor
Elizabeth Q. Contreras
IPC Classification
CPC Classification
A wellbore fluid having a pH greater than or equal to 5 is produced through alkalization of an aqueous electrolyte solution comprising an isopolymetalate. The alkalization of the aqueous electrolyte solution may be performed using an electrolytic cell comprising a chamber configured to hold the aqueous electrolyte solution, a cathode and an anode immersed in the aqueous electrolyte solution, and an electrical power source configured to generate a potential difference between the cathode and the anode. Alkalization-induced redox activities change in surface functional groups drives chemistries in alkaline isopolymetalate-based fluids, increasing amenability to polymers and increasing functionalities. Alkalization by electrolysis of the aqueous electrolyte solution simultaneously produces the wellbore fluid and hydrogen gas.
Original (Chinese)
A wellbore fluid having a pH greater than or equal to 5 is produced through alkalization of an aqueous electrolyte solution comprising an isopolymetalate. The alkalization of the aqueous electrolyte solution may be performed using an electrolytic cell comprising a chamber configured to hold the aqueous electrolyte solution, a cathode and an anode immersed in the aqueous electrolyte solution, and an electrical power source configured to generate a potential difference between the cathode and the anode. Alkalization-induced redox activities change in surface functional groups drives chemistries in alkaline isopolymetalate-based fluids, increasing amenability to polymers and increasing functionalities. Alkalization by electrolysis of the aqueous electrolyte solution simultaneously produces the wellbore fluid and hydrogen gas.
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