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公开(公告)号:US3829685A
公开(公告)日:1974-08-13
申请号:US29642272
申请日:1972-10-10
Applicant: TEXACO EXPLORATION CA LTD
Inventor: MC KAY A
IPC: E21B47/04 , G01V5/04 , G01V5/06 , G21K1/00
CPC classification number: G01V5/04 , E21B47/044 , G01V5/06
Abstract: Apparatus including a well logging tool and surface equipment provides an output substantially corresponding to the expected subsidence of a frozen earth formation upon thawing.