Downhole upgrading of Wolf Lake oil using THAI/CAPRI processes - tracer tests

Malcolm Greaves, Tian Xiang Xia

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

THAI - "Toe-to-Heel Air Injection" is a new short-distance displacement recovery process for heavy oil and bitumens. CAPRI is a catalytic variant of THAI, in which a catalyst is emplaced around the horizontal prodn. well. THAI and CAPRI each achieve nearly 8 API points increase, so that heavy oil undergoes a one-step, downhole conversion to an (almost)light oil. Test were conducted in a specially designed 3-D combustion cell. Two tracers were employed: deuterated water and a special orgs. mixt. The paper presents results of various bulk and mol. analyses performed on the core matrix residues and produced gases and liqs. Some of the variability in oil upgrading obsd. was due to distn., cracking and hydrogenation. Esp. noticeable was effective hydrogenation from H donation, or through water-gas shift, of the compds. cracked from asphaltenes. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)69-72
Number of pages4
JournalPreprints of Symposia - American Chemical Society, Division of Fuel Chemistry
Volume49
Issue number1
Publication statusPublished - 2004

Keywords

  • in study of downhole upgrading of Wolf Lake oil using THAI underground combustion process and its catalytic extension-CAPRI process)
  • in downhole upgrading of Wolf Lake oil using THAI underground combustion process and its catalytic extension-CAPRI process)
  • Petroleum recovery (by underground combustion
  • PROC (Process) (heavy
  • downhole upgrading of Wolf Lake oil using THAI/CAPRI processes)
  • cracking and hydrogenation of
  • heavy petroleum recovery underground combustion THAI CAPRI process
  • Oil wells (downhole upgrading of Wolf Lake oil using THAI underground combustion process and its catalytic extension-CAPRI process)
  • distn.
  • Tracers (deuterated water and special orgs. mixt.
  • Catalysis (downhole upgrading of Wolf Lake oil using THAI underground combustion process and its catalytic extension CAPRI)
  • PEP (Physical
  • CPS (Chemical process)
  • Petroleum Role
  • engineering or chemical process)

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