公开(公告)号：US11384622B2

公开(公告)日：2022-07-12

申请号：US16095675

申请日：2017-04-20

Applicant: M-I L.L.C.

Inventor： Mohammed Abdellatif ,  Mohamed AlMahdy ,  Henricus Fortuin

IPC: E21B37/06 ,  E21B47/00 ,  E21B33/12 ,  E21B33/13 ,  G21F9/00

Abstract: A method of decontaminating naturally occurring radioactive material (NORM) from downhole equipment may include injecting a NORM dissolver into an isolated region of a wellbore in which NORM-contaminated production equipment is located; and removing the NORM contaminants from the production equipment. The method may also include recommencing production of hydrocarbons following the decontamination.