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US 12,448,560 B2Granted
Use of zirconium salts as scale inhibitor squeeze enhancers
AssigneeHalliburton Energy Services, Inc.
InventorsAlex Yi-Tsung Lu, Zhiwei Yue
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Abstract
Methods can include contacting an aqueous fluid including a zirconium salt with a scale inhibitor in a subterranean formation to form a zirconium salt/scale inhibitor complex, and systems related thereto.
Claims20
A method comprising:
- contacting an aqueous fluid comprising a zirconium salt comprising a zirconium lactate with a scale inhibitor in a subterranean formation to form a zirconium salt/scale inhibitor complex,
- wherein the zirconium salt/scale inhibitor complex enhances retention of scale inhibitor within the subterranean formation by at least 85 additional pore volumes.
A method for enhancing a scale inhibition treatment, comprising:
- mixing a base fluid and a zirconium salt comprising a zirconium lactate to form an aqueous fluid;
- placing the aqueous fluid downhole to contact a subterranean formation;
- afterwards placing a scale inhibitor fluid downhole to contact the aqueous fluid forming a zirconium salt/scale inhibitor complex,
- wherein the zirconium salt/scale inhibitor complex enhances retention of scale inhibitor within the subterranean formation by at least 85 additional pore volumes, and
- wherein the aqueous fluid comprises at least about 1%, by weight, of the zirconium lactate based on total weight of the aqueous fluid.
2 more elements
A method for enhancing production from a well site, comprising:
- detecting equal to or greater than about 1%, by volume, water in a produced hydrocarbon fluid;
- placing a scale inhibitor and an aqueous fluid comprising a zirconium salt comprising a zirconium lactate downhole;
- and
- contacting the aqueous fluid comprising the zirconium salt with the scale inhibitor in a subterranean formation to form a zirconium salt/scale inhibitor complex for inhibiting scale formation to enhance retention between 85- to 2,100 additional pore volumes.
1 more element
Dependencies are inferred from the claim text.