Invention Grant
- Patent Title: Removal of a mineral phase from a surface associated with a wellbore
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Application No.: US16932687Application Date: 2020-07-17
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Publication No.: US11518926B2Publication Date: 2022-12-06
- Inventor: Enrique A. Reyes , Kristina H. Holan , Antonio Recio, III
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: K&L Gates LLP
- Main IPC: C09K8/532
- IPC: C09K8/532 ; C09K8/06

Abstract:
The compositions for removing a mineral phase from a surface composition for removing a mineral phase of inorganic sulfate scale include a phosphonoalkyl aminopolycarboxylic acid chelating agent; a wettability modifier comprises a dibasic ester and a surfactant, wherein the surfactant comprises one or more of an anionic alkyl sulfonate or an anionic aryl sulfonate; a pH-adjusting agent; a scale converting agent; and water. The methods for removing a mineral phase from a surface include contacting the mineral phase with an aqueous dissolver fluid that is one of the present compositions; and removing the oil wet mineral phase from the surface with the aqueous dissolver fluid. The compositions and methods provide enhanced remediation of mineral phases from surfaces associated with wellbores.
Public/Granted literature
- US20220017812A1 REMOVAL OF A MINERAL PHASE FROM A SURFACE ASSOCIATED WITH A WELLBORE Public/Granted day:2022-01-20
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