Analysis of geochemical characteristics on database of hydrocarbon composition of crude oils from Bach Ho field by gas chromatography-mass spectrometry method (GC-MS)

  • Vu Van Hai
  • O.V. Serebrennikova
  • Yu.V. Savinykh
Keywords: -

Abstract

The gas chromatography-mass spectrometry method is used to study the composition of hydrocarbons of crude oils and dispersed organic matter of rocks from basement, Oligocene and Miocene of the Bach Ho field. In all the crude oils investigated, hydrocarbons include alkanes, alkylcyclohexanes, methylalkylcyclohexanes, steranes, sekohopanes, sesqui-, tri- and pentacyclic terpanes, alkylbenzenes, bi-, tri-, tetra- and pentacyclic condensed aromatic structures. The closeness of the composition of crude oils from Oligocene and basement shows that they have a genetic relationship. The differences founded may be due to the less thermal transformation of crude oils from Miocene and the processes of biodegradation in reservoirs. The composition of biomarkers indicates that the initial conditions for accumulation of oil source organic matter of all crude oils are similar to the conditions of sedimentation of Oligocene - Early Miocene from this investigated area.

References

Поспелов В.В., Шнип О.А. Геологическое строение и нефтегазоносность Зондского шельфа. Геология нефти и газа. 1997; 8: C. 32 - 37.

Lê Huy Y. Giả thiết về nguồn gốc vô cơ của các mỏ dầu khí ở Việt Nam. Hội Công nghệ Khoan và Khai thác Việt Nam. http://www.vadpt.com.

Trinh Xuan Cuong, Hoang Van Quy, Phan Tu Co, Nguyen Van Huy. The main factors controling quality of the Bach Ho fractured basement reservoir. The 1st International conference “Fractured basement reservoir”. 2004: p. 156 - 159.

Поспелов В.В. Кристаллический фундамент: геолого-геофизические методы изучения коллекторского потенциала и нефтегазоносности. М: Недра. 2005; 257C.

Douglas W.Waples, Tsutomu Machihara. Application of sterane and triterpane biomarkers in petroleum exploration. Bulletin of Canadian Petroleum Geology. 1990; 38: p. 357 - 380.

Albert G.Holba, Leroy Ellis, Erik Tegelaar, M.S.Singletary, Pierre Albrecht. Tetracyclic polyprenoids: indicators of fresh water (lacustrine) algal input. Geology. 2000; 28(3). p. 251 - 254.

J.Michael Moldowan, Wolfgang K.Seifert, Emilio J.Gallegos. Relationship between petroleum composition and depositional environment of petroleum source rocks. AAPG Bulletin. 1985; 69: p. 1255 - 1268.

M.R.Mello, N.Telnaes, P.C.Gaglianone, M.I.Chicarelli, S.C.Brassell, J.R.Maxwell. Organic geochemical characterisation of depositional palaeoenvironments of source rocks and oils in Brazilian marginal basins. Organic Geochemistry. 1988; 13(1-3): p. 31 - 45.

Michael Moldowan, Jeremy Dahl, Bradley J.Huizinga, Frederick J.Fago, Leo J.Hickey, Torren M.Peakman, David Winship Taylor. The molecular fossil record of oleanane and its relation to angiosperms. Science. 1994; 265(5173): p. 768 - 771.

T.Fazeelat, R.Alexander, R.I.Kagi. Effects of maturity on the relative abundances of 8,14-secohopanes in sediments and crude oils. Journal of Chemical Society of Pakistan. 1999; 21(2): p. 154 - 163.

Published
2013-11-29
How to Cite
Hai, V. V., Serebrennikova, O., & Savinykh, Y. (2013). Analysis of geochemical characteristics on database of hydrocarbon composition of crude oils from Bach Ho field by gas chromatography-mass spectrometry method (GC-MS). Petrovietnam Journal, 11, 22-27. Retrieved from https://pvj.com.vn/index.php/TCDK/article/view/719
Section
Articles