Distribution and Thermal Maturity of Devonian Carbonate Reservoir Solid Bitumen in Desheng Area of Guizhong Depression, South China

Figure 5

Photomicrographs of fluid inclusions trapped in calcite veins. ((a) and (b)) Gas-liquid two-phase salt-water inclusions in the calcite veins of carbonate reservoirs of the 1st section of Donggangling Formation, 3802.22 m, transmitted light. (c) Solid bitumen inclusions in the calcite veins of carbonate reservoirs of Yingtang Formation, 4653.16 m, transmitted light. (d) Gas-liquid two-phase salt-water inclusion and methane-containing fluid inclusion in the calcite veins of carbonate reservoirs of Yingtang Formation, 4653.16 m, transmitted light.

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