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公开(公告)号:US20210246359A1
公开(公告)日:2021-08-12
申请号:US17172140
申请日:2021-02-10
Applicant: CHEVRON U.S.A. INC.
Inventor: Thomas HOELEN , Adam DASSEY , Russell COOPER
IPC: C09K8/528
Abstract: A process for offshore decontamination of subsurface pipelines comprising
1) removal of a metal of potential concern from the internal pipeline surface, 2) evacuation of the separated MOPCs from the pipeline, 3) offshore treatment and disposal of generated waste materials, and 4) verification that MOPCs are reduced to below a desired target limit.