Kern River steam-foam pilots

T. W. Patzek*, M. T. Kolnis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

81 Scopus citations


Shell conducted two steam-foam pilots in the Kern River field, one on the Mecca lease (1980-85) and the other on the Bishop fee (1982-86). The pilots consisted of four contiguous inverted five-spots covering 12 and 14 acres [4.8 and 5.7 ha], respectively. The Mecca pilot began after 9 years of steam soaks and 10 years of unconfined steam-drive; the Bishop pilot was preceded by 19 years of steam soaks and 1 year of steamdrive. Steam foam in both pilots was generated by continuous injection of 250 B/D [39.7 m3/ d] per pattern [cold water equivalent (CWE)] of 50% quality steam, with 4 wt% NaCl and 0.5 wt% AOS-1618 surfactant in the aqueous phase and 0.06 mol% N2 in the vapor.

Original languageEnglish (US)
Pages (from-to)496-50317380
Number of pages50316885
JournalJPT, Journal of Petroleum Technology
Issue number4
StatePublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • Fuel Technology
  • Industrial relations
  • Energy Engineering and Power Technology
  • Strategy and Management


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