AU419458B2 - Drilling method and apparatus employing pressure variations ina drilling fluid - Google Patents

Drilling method and apparatus employing pressure variations ina drilling fluid

Info

Publication number
AU419458B2
AU419458B2 AU21081/67A AU2108167A AU419458B2 AU 419458 B2 AU419458 B2 AU 419458B2 AU 21081/67 A AU21081/67 A AU 21081/67A AU 2108167 A AU2108167 A AU 2108167A AU 419458 B2 AU419458 B2 AU 419458B2
Authority
AU
Australia
Prior art keywords
drilling
apparatus employing
pressure variations
employing pressure
drilling fluid
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
AU21081/67A
Other versions
AU2108167A (en
Inventor
MILBURN GALLE and HENRY BARNES WOODS EDWARD
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.)
Hughes Tool Co
Original Assignee
Hughes Tool 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 Hughes Tool Co filed Critical Hughes Tool Co
Application granted granted Critical
Publication of AU2108167A publication Critical patent/AU2108167A/en
Publication of AU419458B2 publication Critical patent/AU419458B2/en
Expired legal-status Critical Current

Links

AU21081/67A 1966-05-25 1967-05-01 Drilling method and apparatus employing pressure variations ina drilling fluid Expired AU419458B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
USUS552,788 1966-05-25

Publications (2)

Publication Number Publication Date
AU2108167A AU2108167A (en) 1968-11-07
AU419458B2 true AU419458B2 (en) 1968-11-07

Family

ID=

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