Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Technology BV
Original Assignee
Schlumberger Technology BV
Publication of AU492478B2publicationCriticalpatent/AU492478B2/en
Priority claimed from FR7502206Aexternal-prioritypatent/FR2298680A1/en
Application filed by Schlumberger Technology BVfiledCriticalSchlumberger Technology BV
Publication of AU1023576ApublicationCriticalpatent/AU1023576A/en
Layer inspection method for measuring characteristics of geologic formation in test drilled hole and winch apparatus used for measuring characteristics of geologic formation