Reservoir characteristics of the second member in Maokou Formation, Middle Permian, northeast Sichuan Basin

Ying Wang

doi:10.1117/12.2668257

23 February 2023 Reservoir characteristics of the second member in Maokou Formation, Middle Permian, northeast Sichuan Basin

Ying Wang

Author Affiliations +

Proceedings Volume 12551, Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022); 125511Y (2023) https://doi.org/10.1117/12.2668257
Event: Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022), 2022, Changchun, China

Abstract

The Mao-2 member reservoir in the northeast of Sichuan Basin consists of a set of bright bioclastic, algal clastic limestone and silty fine dolomite. Through the analysis of the porosity and permeability of two wells in Yuanba area, the samples with porosity of 2-5% account for 23.8% of the total, and the permeability is mainly distributed in 0.001-0.01 × 10^-3 μ m², accounting for 66.7%. In general, Mao-2 reservoir is a low porosity and low permeability reservoir, and there are medium and high permeability reservoirs locally. Affected by karstification and basement fault activity, Mao-2 member is easy to form karst fracture cave type reservoir, and industrial gas flow is obtained in many wells in the adjacent area, which proves that Mao-2 member has good exploration potential.

Citation Download Citation

Ying Wang "Reservoir characteristics of the second member in Maokou Formation, Middle Permian, northeast Sichuan Basin", Proc. SPIE 12551, Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022), 125511Y (23 February 2023); https://doi.org/10.1117/12.2668257

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