China University of Petroleum

Jinbu Li

Min Wang

Shuangfang Lu

Chuanming Li

Zhiqiang Guo

An evaluation method for hydrogen-bearing components, porosity and pore size distribution of organic-rich shale is provided, relating to a technical field of oil and gas development. The evaluation method includes steps of: according to differences among NMR (nuclear magnetic resonance) T-Tmaps of kerogen, oil-adsorbed kerogen, clay minerals of different water-containing conditions, shale, dry shale sample, oil-saturated shale sample and water-saturated shale sample, establishing a classification scheme for each hydrogen-bearing component and a quantitative characterization method for fluid components of the organic-rich shale; with a Tdistribution of the organic-rich shale after being saturated with oil as a target and a Tdistribution of the dry shale sample as a basement, subtracting the basement, and obtaining a Tdistribution of oil in pores; and based on the Tdistribution of oil in the pores, evaluating the porosity and the pore size distribution of the organic-rich shale. Compared with a conventional method, the present invention shows relatively high innovativeness and credibility, which is beneficial to perfecting analysis of NMR in shale petrophysical measurement.

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Shandong, China

Jinbu Li