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Exploration discovery and hydrocarbon accumulation characteristics of the Doseo strike-slip and inverted basin, Chad
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DOU Lirong,XIAO Kunye,DU Yebo,WANG Li,ZHANG Xinshun,CHENG Dingsheng,HU Ying
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Table 1. Characteristics of source rocks from wells drilled in the Doseo Basin
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| Formation | Dark mudstone
thickness/m | Mud-to-formation
ratio/% | Average
TOC/% | Average
S1+S2/(mg·g-1) | Average
HI/(mg·g-1) | R0/% (Single well regression data) | | Doba Fm. | 400 | 70 | 2.9 | 19 | 524 | 0.45-0.75 | | Kedeni Fm. | 800 | 60 | 3.8 | 32 | 760 | 0.75-1.20 | | Mangara Group | >165 | 50 | 2.0 | 10 | 454 | 1.2-2.0 |
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