Research Article

Spatial Characteristics and Genesis of Tight Clastic Reservoirs in Yingcheng Formation of Changling Fault Depression in the Southern Songliao Basin

Figure 4

(a) Dissolved pores in the andesite cuttings, the pores are lined with chlorite to surround the intergranular pores, and the pores are filled with microcrystalline quartz, well B202, 3112.75 m (-). (b) Acid erupted rock cuttings dissolve to form mold holes, well B210, 3948.60 m (-). (c) Feldspar pores, B210 well, 3950.9 m (+). (d) Quartz pores, B210 well, 4129.95 m (+). (e) mold hole, B202 well, 3130.8 m (-). (f) Lautonite cement dissolution pores, well B210, 3945.95 m (-).
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