Showing 401 - 420 results of 1,922 for search '"petroleum"', query time: 0.28s Refine Results
  1. 401
    Article of journal
    Repositorio Universidad Nacional de Colombia

    ... with petroleum ether and ethyl acetate. The total extract and the two fractions were diluted at different...
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  2. 402
  3. 403
    Trabajo de grado de pregrado
    Published in 2017
    Repositorio Séneca: repositorio Uniandes

    ...Petroleum industry has a great influence in Colombian economy. Because of this, the drastic price...
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  4. 404
    http://purl.org/coar/version/c_b1a7d7d4d402bcce
    Published in 2004
    Repositorio Repositorio UIS

    .... Estudios realizados y publicados por la Society Petroleum Engineer (SPE), muestran que los principales...
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  5. 405
  6. 406
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  9. 409
  10. 410
  11. 411
  12. 412
  13. 413
  14. 414
    Published in 2018
    Repositorio Lumieres
    ...This monograph was conducted with the objective of broadly describing the process of petroleum...
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  15. 415
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  19. 419
    http://purl.org/coar/version/c_b1a7d7d4d402bcce
    Repositorio Repositorio UIS

    ... definida en la Norma ISO 15663 de 2000, Petroleum and natural gas industries Life Cycle Costing , cuya...
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  20. 420