Paleoenvironmental and maturity indicator of CEPU block oil, wonocolo formation, east Java-Indonesia

R. Y. Perry Burhan*, Yulfi Zetra, Yuanita Aisyah Amini

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Biomarkers identification of aromatic hydrocarbon fraction of Cepu oil samples was carried out to determine the ancient depositional environment, the source of origin and indicators of the maturity of the old well of the Cepu Block oil, Wonocolo Formation, East Java Indonesia. Biomarkers were identified through the Gas Chromatography-Mass Spectroscopy (GC-MS) method. The distribution of aromatic hydrocarbon biomarkers indicates the presence of naphthalene compounds and their derivatives, sesquiterpenoids, diterpenoids and heterocyclic aromatic groups. The presence of identified biomarkers indicates the source of the oil organic compound coming from higher plants Angiosperms. The presence of methyl phenanthrene and aromatic heterocyclic biomarkers such as dibenzothiophene and dibenzofuran, as well as fluorene shows that Cepu Block oil was deposited not only in the terrestrial environment, but also lacustrine and marin under oxidic precipitation conditions. The presence of methyl phenanthrene with MPI value of 0.86 and isocadalene abundance higher than cadalene indicates moderate to high maturity of the Cepu Block oil analyzed.

Original languageEnglish
Pages (from-to)173-182
Number of pages10
JournalJurnal Teknologi (Sciences and Engineering)
Issue number5
Publication statusPublished - 2020


  • Aromatic hydrocarbon
  • Biomarker
  • Cepu Block oil
  • GC-MS analysis
  • Paleoenvironment


Dive into the research topics of 'Paleoenvironmental and maturity indicator of CEPU block oil, wonocolo formation, east Java-Indonesia'. Together they form a unique fingerprint.

Cite this