Analysis on logging attributes of Upper Palaeozoic Sandstone Reservoirs in Yanchang Gas Field, East of Northern Shaanxi

Geoscience ›› 2009, Vol. 23 ›› Issue (5): 952-956.

• Engineering Geology and Environmental Geology • Previous Articles Next Articles

Analysis on logging attributes of Upper Palaeozoic Sandstone Reservoirs in Yanchang Gas Field, East of Northern Shaanxi

HAN Pin-Long^1,2, Zhang Xiao-Li¹, Zhang-Li-Xin³, Guo Lan¹,Sun Pei¹, Shen Yi-Bo¹

1Department of Geology，Northwest University, Xian，Shaanxi710069,China;2Research Institute of Petroleum Exploration and
Development, PetroChina, Beijing100083,China;3School of Energy Resources, China University of Geosciences, Beijing100083,China

Received:2009-03-30 Revised:2009-09-14 Online:2009-10-20 Published:2012-02-16

Abstract

Abstract:

On the basis of core analysis，well logging interpretation and well test analysis, the characteristics of logging attributes of Upper Palaeozoic sandstone reservoirs are analyzed in Yanchang gas field,east of northern Shaanxi. There have two kinds of reservoirs: quartz sandstone and lithic sandstone. The reservoirs have different well logging attributes, different relations among their physical parameters and well logging interpretation models. The results show that the differential amplitude of overlap by acoustic curve and spontaneous potential curve and the differential amplitude of overlap by resistivity curves with different prospecting range can reveal the reservoir physical properties and their variation. Furthermore, the gasbearing characteristics of reservoirs and their logging attributes are analyzed.

Key words: reservoir, low porosity and low permeability, heterogeneity, well logging attribute, Yanchang gas field

CLC Number:

TE122.2

HAN Pin-Long, Zhang Xiao-Li, Zhang-Li-Xin, Guo Lan,Sun Pei, Shen Yi-Bo. Analysis on logging attributes of Upper Palaeozoic Sandstone Reservoirs in Yanchang Gas Field, East of Northern Shaanxi[J]. Geoscience, 2009, 23(5): 952-956.

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Analysis on logging attributes of Upper Palaeozoic Sandstone Reservoirs in Yanchang Gas Field, East of Northern Shaanxi

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