AU479655B2 - Drill collar with thread connections - Google Patents

Drill collar with thread connections

Info

Publication number
AU479655B2
AU479655B2 AU65463/74A AU6546374A AU479655B2 AU 479655 B2 AU479655 B2 AU 479655B2 AU 65463/74 A AU65463/74 A AU 65463/74A AU 6546374 A AU6546374 A AU 6546374A AU 479655 B2 AU479655 B2 AU 479655B2
Authority
AU
Australia
Prior art keywords
drill collar
thread connections
connections
thread
drill
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
AU65463/74A
Other versions
AU6546374A (en
Inventor
Robert Cruickshank And Rainer Jurgens James
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.)
Norton Christensen Inc
Original Assignee
Christensen Diamond Products Co
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 Christensen Diamond Products Co filed Critical Christensen Diamond Products Co
Application granted granted Critical
Publication of AU6546374A publication Critical patent/AU6546374A/en
Publication of AU479655B2 publication Critical patent/AU479655B2/en
Expired legal-status Critical Current

Links

AU65463/74A 1973-03-20 1974-02-11 Drill collar with thread connections Expired AU479655B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732313664 DE2313664C3 (en) 1973-03-20 Drill collars
DEDE823136 1973-03-20

Publications (2)

Publication Number Publication Date
AU6546374A AU6546374A (en) 1975-08-14
AU479655B2 true AU479655B2 (en) 1975-08-14

Family

ID=

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