Revisiting Controls on Shale Oil Accumulation in Saline Lacustrine Basins: The Permian Lucaogou Formation Mixed Rocks, Junggar Basin

Figure 7

FE-SEM images showing the reservoir space types in the Lucaogou Formation, Jimusar Sag: (a) well J303, 2597.7 m, dolomite with intercrystalline pores; (b) well J305, 3416.8 m, dolomitic mudstone with intergranular pores and dissolution pores; (c) well J10025, 3549.43 m, silty mudstone with dissolution pores; (d) well J43, 2948.5 m, shale with intercrystalline pores between clay minerals (illite); (e) well J10025, 3567.6 m, shale with intergranular pores and dissolution pores and authigenic mineral nodules; (f) well J303, 2597.7 m, dolomite with fractures.

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