Study on Water Flooding Production of Typical Low Permeability
Reservoir Feature

doi:10.3863/j.issn.1674–5086.2013.06.011

Abstract

Abstract:

Low permeability reserves occupied a very large proportion in our country’s proved and undeveloped reserves.
So it is urgent to research the micro pore structure characteristics of low permeability reserves. Based on a large amount of
experimental data by using constant-rate mercury penetration and nuclear magnetic resonance，the relationship between the
mainstream throat radius，the percentage of mobile fluid and the permeability of different oilfields were analyzed，and the cores
throat distribution and NMR T2 distribution with various permeability of different oilfields were studied. The results show
that there were differences in the throat distribution and NMR T2 distribution of cores from different oilfields with various
permeability，and the proportion of 1.0µm throat and the relationship of T2 left peak and right peak can be the evaluation limit
of water flooding producing. The lower permeability limit of water flooding development in Changqing Oilfield and Daqing
Oilfield were studied，which laid a solid foundation for the development of low permeability reserves.

Key words: low permeability reserves, micro pore structure, nuclear magnetic resonance, mercury penetration, water flooding

Yang Zhengming1, Bian Chenxu2, Liu Xiangui1, Wang Xuewu1. Study on Water Flooding Production of Typical Low Permeability
Reservoir Feature[J]. 西南石油大学学报(自然科学版), DOI: 10.3863/j.issn.1674–5086.2013.06.011.

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