AU433867B2 - Core drilling in nonsupporting earth formations - Google Patents

Core drilling in nonsupporting earth formations

Info

Publication number
AU433867B2
AU433867B2 AU11620/70A AU1162070A AU433867B2 AU 433867 B2 AU433867 B2 AU 433867B2 AU 11620/70 A AU11620/70 A AU 11620/70A AU 1162070 A AU1162070 A AU 1162070A AU 433867 B2 AU433867 B2 AU 433867B2
Authority
AU
Australia
Prior art keywords
nonsupporting
earth formations
core drilling
drilling
core
Prior art date
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.)
Expired
Application number
AU11620/70A
Other versions
AU1162070A (en
Inventor
GEOFFREY HERBERT CHARLWOOD (DECEASED), LYLE WILLIAM HOKANSON and JOHN WILL IAMS McBEAN
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.)
Heath and Sherwood Drilling Ltd
Original Assignee
Heath and Sherwood Drilling Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heath and Sherwood Drilling Ltd filed Critical Heath and Sherwood Drilling Ltd
Application granted granted Critical
Publication of AU433867B2 publication Critical patent/AU433867B2/en
Publication of AU1162070A publication Critical patent/AU1162070A/en
Expired legal-status Critical Current

Links

AU11620/70A 1969-02-21 1970-02-19 Core drilling in nonsupporting earth formations Expired AU433867B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CACA43654 1969-02-21

Publications (2)

Publication Number Publication Date
AU433867B2 true AU433867B2 (en) 1971-09-02
AU1162070A AU1162070A (en) 1971-09-02

Family

ID=

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