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Characteristics of Solid Bitumen in the Cambrian Longwangmiao Formation Reservoir, Northern Slope of Central Sichuan Paleo-Uplift and Its Petroleum Geological Significance

Lusong Lei, Yongke Liu, Sili Li, Yu Zou, Qiling Yang

Abstract


With the gradual acceleration of exploration in the northern slope of the Central Sichuan Paleo-Uplift, multiple exploratory wells
have encountered hydrocarbon shows in the Longwangmiao Formation. Logging interpretation indicates well-developed reservoirs within
this formation in the study area. This study initiates with the identification of solid bitumen in carbonate gas reservoirs. Employing a method
integrating thin-section identification with mathematical geology, it quantitatively predicts the solid bitumen content within the reservoirs of
the study area, establishes a multiple regression quantitative prediction model, and further explores the influence of solid bitumen content on
natural gas enrichment. The results indicate that the Longwangmiao Formation reservoirs in the study area are rich and widely distributed in bitumen content, and predicting its content holds significant importance for petroleum geology. The reservoir solid bitumen content prediction model
proposed in this study can be applied to non-cored intervals to predict bitumen content, which is of great significance for oil and gas development.

Keywords


Multiple regression quantitative prediction model; Solid bitumen; Longwangmiao Formation; Cambrian System; Northern slope; Central Sichuan Paleo-Uplift

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References


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DOI: http://dx.doi.org/10.70711/frim.v3i9.7314

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