KAJIAN GEOKIMIA MOLEKULER MINYAK BUMI DARI LADANG MINYAK BUMI BAKAU DAN BERUK (BLOK SELAT PANJANG) MENGGUNAKAN DISTRIBUSI BIOMARKER (GAMMASERANA, HOPANA, DAN OLEONANA)

Abstract

Petroleumgeochemistry is an application of chemical principles to study the origin, migration and accumulation of petroleum and its use in exploring and obtaining petroleum. The oil wells originating from Bakau and Beruk are oil wells that have recently been discovered and there is no molecular gheochemical study yet. Samples from oil wells Bakau and Beruk were fractionated by chromatography column into aromat fractions then analyzed for biomarker compounds using gas chromathography-mass spectroscopy (GC-MS) m/z 191. Based on the ratio hopana petroleum from Bakau (0,63) and Beruk (0,50) and the level of maturity is early mature. Determination of the origin of organic material using the parameters oleonana in Bakau and Beruk oil (1,72 and 1,04) indicates from organic matter of land plants (angiospermae). Bakau and Beruk peroleum re in the depostional environment with non hypersalin content as evidenced by the parameters of gammaserana in the Bakau and Beruk petroleum (0,10 and 0,48). Correlation studies with start chart show that oil from Bakau and Beruk petroleum is negatively correlated.