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公开(公告)号:US20210115783A1
公开(公告)日:2021-04-22
申请号:US17076308
申请日:2020-10-21
Applicant: ConocoPhillips Company
Inventor: Martin C. KRUEGER , Elton L. DINIZ FERREIRA , Edwin ORTEGA , Thiago B. SIMOES CORREA
IPC: E21B47/002 , E21B49/00
Abstract: Gadolinium- or boron-doped drilling mud is used during drilling so that it will penetrate all natural cracks in the formation that intersect with the wellbore. Once cased, cemented and washed, the doped mud will only be in the fractures. Pulsed neutron logging is performed, and natural factures thereby characterized.