AU562883B2 - Wear-resistant porous drill collar - Google Patents

Wear-resistant porous drill collar

Info

Publication number
AU562883B2
AU562883B2 AU25832/84A AU2583284A AU562883B2 AU 562883 B2 AU562883 B2 AU 562883B2 AU 25832/84 A AU25832/84 A AU 25832/84A AU 2583284 A AU2583284 A AU 2583284A AU 562883 B2 AU562883 B2 AU 562883B2
Authority
AU
Australia
Prior art keywords
wear
drill collar
resistant porous
porous drill
resistant
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.)
Ceased
Application number
AU25832/84A
Other versions
AU2583284A (en
Inventor
Ronald Paul Steiger
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.)
ExxonMobil Upstream Research Co
Original Assignee
Exxon Production Research 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
Priority claimed from US06/476,082 external-priority patent/US4602690A/en
Application filed by Exxon Production Research Co filed Critical Exxon Production Research Co
Publication of AU2583284A publication Critical patent/AU2583284A/en
Application granted granted Critical
Publication of AU562883B2 publication Critical patent/AU562883B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU25832/84A 1983-03-17 1984-03-16 Wear-resistant porous drill collar Ceased AU562883B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US476082 1983-03-17
US06/476,082 US4602690A (en) 1980-12-11 1983-03-17 Detachable apparatus for preventing differential pressure sticking in wells

Publications (2)

Publication Number Publication Date
AU2583284A AU2583284A (en) 1985-09-19
AU562883B2 true AU562883B2 (en) 1987-06-18

Family

ID=23890441

Family Applications (1)

Application Number Title Priority Date Filing Date
AU25832/84A Ceased AU562883B2 (en) 1983-03-17 1984-03-16 Wear-resistant porous drill collar

Country Status (4)

Country Link
AU (1) AU562883B2 (en)
CA (1) CA1210321A (en)
MY (1) MY8700503A (en)
NO (1) NO163244C (en)

Also Published As

Publication number Publication date
NO163244C (en) 1990-04-25
AU2583284A (en) 1985-09-19
NO163244B (en) 1990-01-15
MY8700503A (en) 1987-12-31
CA1210321A (en) 1986-08-26
NO841038L (en) 1984-09-18

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