BR9605537A - Oil well shutter - Google Patents

Oil well shutter

Info

Publication number
BR9605537A
BR9605537A BR9605537A BR9605537A BR9605537A BR 9605537 A BR9605537 A BR 9605537A BR 9605537 A BR9605537 A BR 9605537A BR 9605537 A BR9605537 A BR 9605537A BR 9605537 A BR9605537 A BR 9605537A
Authority
BR
Brazil
Prior art keywords
oil well
well shutter
shutter
oil
well
Prior art date
Application number
BR9605537A
Other languages
Portuguese (pt)
Inventor
Eliberto Eduardo Pinheiro
Original Assignee
Petroleo Brasileiro Sa
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 Petroleo Brasileiro Sa filed Critical Petroleo Brasileiro Sa
Priority to BR9605537A priority Critical patent/BR9605537A/en
Publication of BR9605537A publication Critical patent/BR9605537A/en

Links

BR9605537A 1996-11-12 1996-11-12 Oil well shutter BR9605537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR9605537A BR9605537A (en) 1996-11-12 1996-11-12 Oil well shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR9605537A BR9605537A (en) 1996-11-12 1996-11-12 Oil well shutter

Publications (1)

Publication Number Publication Date
BR9605537A true BR9605537A (en) 1998-08-11

Family

ID=4065731

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9605537A BR9605537A (en) 1996-11-12 1996-11-12 Oil well shutter

Country Status (1)

Country Link
BR (1) BR9605537A (en)

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
B16A Patent or certificate of addition of invention granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection