TABLE 3.

Enrichment of thermophilic microorganisms from Samotlor oil well samples

SampleGrowth ofa:
Aerobic organotrophs (60°C)Hydrocarbon oxidizers (60°C)Denitrifiers (60°C)Anaerobic organotrophsSulfate reducers growing (60°C) onMethanogens growing (60°C) on
60°C70°C85°CLactateAcetateH2+CO2Acetate
Injection water++++NDND++
692+++
13044++++
31079++NDND+
35363+++NDND
39636+++++++++
10149+NDND
4640b++NDND
4642++NDND+
10318++NDND
6151+ND+
714+ND+
735b+++
739+++
757+ND+
767+NDND
769+NDND+
  • a +, growth; −, no growth; ND, not determined.