Glossary entry (derived from question below)
English term or phrase:
directional driller
Portuguese translation:
operador de perfuração direcional; sondador direcional; perfurador direcional
English term
India
Breaking down Barriers
Native in: English 
Works in: Portuguese to English, English to Portuguese, Portuguese, and 1 more.
Directional Driller
| 4 +3 | perfurador direcional; operador de perfuração direcional |
Matheus Chaud
|
| 4 +2 | sondador direcional |
Salvador Scofano and Gry Midttun
|
| 4 | perfuratriz direcional |
Mario Freitas
|
Apr 18, 2018 00:59: Matheus Chaud changed "Edited KOG entry" from "<a href="/profile/1617631">Mark Pinto's</a> old entry - "Directional Driller"" to ""perfurador direcional; operador de perfuração direcional""
Proposed translations
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
perfurador direcional; operador de perfuração direcional
Conforme
http://www.bne.com.br/curriculo-de-estagiario-em-rio-de-jane...
e
https://pt.scribd.com/document/80394293/Perfuracao-de-Pocos-...
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Note added at 8 mins (2018-04-16 14:24:06 GMT)
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perfuração direcional:
https://www.google.com.br/search?num=100&rlz=1C1GCEA_enBR770...
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Note added at 11 mins (2018-04-16 14:27:10 GMT)
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Ex.:
Perfuração de Poços
https://docslide.com.br/documents/perfuracao-de-pocos-ibp.ht...
Operador de perfuração direcional (Directional Driller)
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Note added at 14 mins (2018-04-16 14:30:51 GMT)
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Agora uma referência bastante especializada:
Thesauro da Industria Petrolifera Vol 2:
https://pt.scribd.com/doc/207076745/Thesauro-Da-Industria-Pe...
directional drilling = perfuração direcional
Norway
Salvador Scofano and Gry Midttun
Engineer:Oil&Gas/Electron/Finan/Law/HSEQ
Native in: Norwegian , Portuguese
Works in: English to Portuguese, Norwegian to Portuguese, Portuguese to Norwegian, and 19 more.
sondador direcional
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) , Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English
perfuratriz direcional
https://www.google.com.br/search?biw=974&bih=687&ei=1hTVWsem...
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