... different oils in Laktybay and Akzhar Eastern fields, associated with different generation sources - with source rocks of carbonate and shaly formations. According to the thermal maturity of oil from pre-salt deposits of carbonate origin (Alibekmola, Kozhasay, Eastern Urikhtau fields) showed relatively low...

...- Triassic and Triassic deposits of Oymashaa, Atambay -Sartyube and Pridorozhnoye are so thermally overmature that they are in the zone of gas generation and possess low generative potential, and as shown by biomarker analysis, their oils have such a high thermal maturity that only tiny amount of biomarkers...

... characteristic geochemical characterization oil sample thermal maturity precaspian basin source rock INTRODUCTION The Precaspian Basin is the perspective oil and gas region of the Eastern European Platform ( Krylov et al. 1994 ) and characterized as a sedimentary basin of great thickness. The main...

... between certain objects and horizons. structural geology eastern moldabek field mass fragmentogram geochemical characterization environmental condition dosmukhambetov terpane biodegradation upstream oil & gas oil sample biomarker analysis thermal maturity isotopic composition...