Deltas Mahakam

Mahakam Delta (12-17). The coal samples were solvent-extracted prior to analysis. 

The variation in the TR with depth for three other natural maturity sequences (Mahakam Delta, Paris Basin, North Sea) is plotted with that for the Monterey Fm. in Figure 4. While the geothermal histories of these sequences are different, there is in each case a strong relationship between maximum temperature experienced by the sample and depth. Depth is therefore used here as a common maturity axis for comparative purposes. Each of these sequences show a slight but significant decrease in this ratio with increasing depth. The extent of the decrease is, however, less dramatic than that for the Monterey sequence due mainly to their lower initial organic sulfur contents. 

Furlan S., Clauer N., Chauduri S., and Sommer F. (1996) K transfer during burial diagenesis in the Mahakam Delta basin (Kalimantan, Indonesia). Clays Clay Min. 44,157-199. 

Durand B. and Oudin J. L. (1979) Exemple de migration des hydrocarbures dans une serie deltaique le delta de la Mahakam, Indonesie. Proc. 10th World Petrol. Congr. 

Monthioux M., Landais P., and Monin J.-C. (1985) Comparison between natural and artificial maturation series of humic coals from the Mahakam delta, Indonesia. Org. Geochem. 8, 275-292. 

Venkatesan M. L, Ohta K., Stout A., Steinberg S., and Oudin J.L.(1993) Diagenetic trends of lignin phenols in Mahakam Delta coals correlation between laboratory thermal maturation and natural samples. Org. Geochem. 20, 463-473. 

Peters K. E., Snedden J. W., Sulemaeman A., Sarg J. F., and Enrico R. J. (2000) A New Geochemical-sequence stratigraphic model for the Mahakam Delta and Makassar Slope, Kalimantan, Indonesia. Am. Assoc. Petrol. Geol. Bull. 84(1), 12-44. 

FIGURE 2. Elemental composition of reference humic substances. Marine input sediment from Kerguelen Islands terrestrial input sediment from Mahakam Delta (Indonesia). 

Figure 8 shows pyrograms from fulvic acids, humic acids, and kerogens of surficial marine sediments from the Mahakam Delta (Indonesia) and from the Black Sea. Peaks are due primarily to saturated, unsaturated, and aromatic hydrocarbons. Benzene and toluene peaks have been tentatively identified, as well as peaks due to n-alkanes and n-alkenes. Fulvic acids and humic acids behave very differently upon pyrolysis fulvic acids produce no methane and very few hydrocarbons, except benzene and toluene. Humic... 

FIGURE 8. Pyrolysis-gas chromatography of fulvic acids, humic acids, and stable residues from marine sediments containing terrestrial organic input (Mahakam Delta) and planktonic organic input (Black Sea). 

TABLE 8. Evolution of Humic Substances in Peats, Mahakam Delta, Indonesia"... 

Boudou, J. P. (1981). Diagenese organique de sediments organique de se deltaiques (Delta de la Mahakam, Indonesie). These, Universite d Orleans, France. 

Table 4.8 Bulk compositional changes in the three main kerogen types with increasing maturity (after Behar Vandenbroucke 1987). Maturity levels are shown by positions of samples in Fig. 4.15. Type I kerogen is based on the Eocene, upper Green River Formation shale from the Uinta Basin type II is based on theToarcian shales of the Paris Basin (France) and Liassic a shales from Germany and type III on the deltaic sequences from the Upper Cretaceous of the Douala Basin (Cameroon) and from the Tertiary of the Mahakam Delta (Borneo)...

Durand, B., Hue, A. Y. Oudin, L. 1987. Oil saturation and primary migration, observations in shales and coals from the Kerbau wells, Mahakam Delta, Indonesia. In Dologez, B. (ed.) Migration of HC in sedimentary basins. Editions Technip, 173-195. 

Case of the Mahakam Delta Indonesia. Geochim Cosmochim Acta 52 2599-2607 Kartsev AA (1976) Hydrogeology of oil and gas deposits. Natl Tech Inf Serv Rep TT73-58022, 323 pp... 

An external defect due to corrosion under insulation (CUI) and hot atmospheric conditions (+80 C) was identified on a high pressure and high temperature riser in Mahakam Delta, East Kalimantan (Figure 6.11). 

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