Paper Type |
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Research Paper |
Title |
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Characteristic of Cracks in Tight Sandstone Reservoir |
Country |
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China |
Authors |
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Ming Yan ||, Yunfeng Zhang ||, Jie Gao ||, Ji Gao |
Page No. |
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10-13 |
 |
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0.4/3021-05731013 .png) |
 |
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3021-0507-0313  |
Cracks not only can be used as a good reservoir space, but also is the important reservoir seepage channel. Study area mainly has tectonic cracks, bedding cracks and diagenesis cracks. Tectonic crack is usually characterized by irregular serrated, wear layer and oblique development. Bedding cracks grow between two layers which have different lithology. Diagenesis cracks are controlled by diagenetic process, and it is usually micro cracks. Tectonic stress controlled the cracks plane and vertical distribution. Sedimentation determines the original composition and structure of the reservoir rock. Different sedimentary microfacies have different cracks development degree. Pressure cracks formed by the real pressure. Dissolution cracks formed by the dissolution.
Keywords: - Cracks; Tight sandstone reservoir; Controlling factors; Characteristic
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