南方下古生界海相页岩有机质成熟度评价

徐学敏; 孙玮琳; 汪双清; 秦婧; 沈斌; 郭望; 杨佳佳; 栗敏

doi:10.3799/dqkx.2019.181

Volume 44 Issue 11

Nov. 2019

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Article Navigation > Earth Science > 2019 > 44(11): 3717-3724

Xu Xuemin, Sun Weilin, Wang Shuangqing, Qin Jing, Shen Bin, Guo Wang, Yang Jiajia, Li Min, 2019. Maturity Evaluation of Marine Shale in the Lower Paleozoic in South China. Earth Science, 44(11): 3717-3724. doi: 10.3799/dqkx.2019.181

Citation:

Xu Xuemin, Sun Weilin, Wang Shuangqing, Qin Jing, Shen Bin, Guo Wang, Yang Jiajia, Li Min, 2019. Maturity Evaluation of Marine Shale in the Lower Paleozoic in South China. Earth Science, 44(11): 3717-3724. doi: 10.3799/dqkx.2019.181

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Maturity Evaluation of Marine Shale in the Lower Paleozoic in South China

doi: 10.3799/dqkx.2019.181

1.
National Research Center for Geoanalysis, Beijing 100037, China
2.
Xi'an Center of Geological Survey, China Geological Survey, Xi'an 710054, China

Received Date: 2019-07-18
Publish Date: 2019-11-15

Abstract

Abstract

In order to clarify the equivalent conversion relationship between bitumen reflectance and vitrinite reflectance for evaluating the maturity of marine shale in the Lower Paleozoic in South China, a series of hydrocarbon generation simulation experiments were carried out in the temperature range of 350-525℃ using a shale from Hongshuizhuang Formation and a coal sample from Longtan Formation with similar maturity. An equivalent conversion relationship was established by measuring the reflectivity of bitumen from shale and vitrinite from coal at each temperature point, and also the accuracy of the method using the simulated sample and outcrop sample is validated. The result shows that they follow this relationship:VR_o (equivalent vitrinite reflectance)=0.879 8R_b (bitumen reflectance) + 0.114 5 (VR_o 0.61%-3.04%). The regression formula of bitumen reflectance can provide an important reference for accurately evaluating the maturity of marine shale strata without vitrinite in the South China.
- marine shale,
- maturity,
- bitumen reflectance,
- simulation experiment,
- petroleum geology

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References(36)

References

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Maturity Evaluation of Marine Shale in the Lower Paleozoic in South China

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