A novel method of quantitative evaluation and comprehensive classification of low permeability-tight oil reservoirs: A case study of Jidong Oilfield, China

The classification of low permeability-tight reservoirs is the premise of development. The deep reservoir of Shahejie 3 member contains rich low permeability-tight reserves, but the strong heterogeneity and complex micro pore structure make the main controlling factors subjective and the classification boundaries unclear. Therefore, a new indicator considering the interaction between fluid and rock named Threshold Flow Zone Indicator(TFZI) is proposed, it can be used as the main sequence of correlation analysis to screen the main controlling factors, and the clustering algorithm is optimized combined with probability distribution to determine the classification boundaries. The sorting coefficient, main throat radius, movable fluid saturation and displacement pressure are screened as the representative parameters for the following four key aspects: rock composition, microstructure, flow capacity and the interaction between rock and fluid. Compared with the traditional probability distribution and clustering algorithm, the boundary of the optimized clustering algorithm proposed in this paper is more accurate.The classification results are consistent with sedimentary facies, oil levels and oil production intensity.This method provides an important basis for the development of low permeability-tight reservoirs.

浪漫主义文学的国际研究前沿与重点问题:伊恩·邓肯教授访谈录（英文）

伊恩·邓肯,加州大学伯克利分校英文系教授、苏格兰文学研究协会副主席、爱丁堡皇家学会成员、A&HCI知名杂志《表述》编委。陈彦旭博士利用2017—2018年期间在加州大学伯克利分校英文系访学期间的便利,对伊恩·邓肯教授进行了专访,谈话主要涉及到浪漫主义文学的国际研究前沿与热点话题。访谈中,邓肯教授对近年来北美浪漫主义协会年会的热点话题进行了评述,如政治与生态视域下的浪漫主义文学研究,等等。邓肯教授还谈及了自己即将问世的一部新作《人类形态:进化时期的小说》,讨论了如何在人类学的意义上,将文学作品作为一种人类进化现象的解读方式。此外,邓肯教授还谈到了司各特的小说既具有民族身份建构功能,同时又作为一种颇有影响力的世界文学作品的存在方式。最后,邓肯教授认为苏格兰文学参与了全球文化、文学的生产,对英国浪漫主义的发展起到了至关重要的作用。