%0 Journal Article
%T Structural strain and structural heterogeneity of sandstone diagenesis: a case study for the Kuqa subbasin in the northern Tarim basin<br>构造应变与砂岩成岩的构造非均质性——以塔里木盆地库车坳陷研究为例
%A LI Zhong
%A ZHANG LiJuan
%A SHOU JianFeng
%A HAN DengLin
%A SHEN Yang
%A ZHANG HuiLiang
%A <br>李忠
%A 张丽娟
%A 寿建峰
%A 韩登林
%A 沈杨
%A 张惠良
%J 岩石学报
%D 2009
%I 
%X Structural strain of porous sandstones, evidently different from that of low porous limestones, will preferentially produce strain localization and form microscopic deformation bands. A case study shows that late structural deformation developed in the Kuqa subbasin in the northern Tarim basin, the southern foot of the Tianshan mountain and were characterized by north-southern zonation with east-western differentiation since Cretaceous. Based on structural deformation framework and sandstone physical features (porosity and permeability), six types of structural deformation patterns, controlling structural heterogeneity of sandstone reservoirs, are presented in this paper. The deep involved structural patterns (three types) and the shallow involved structural patterns principally occur in the western and eastern Kuqa subbasin respectively, which is controlled by basement blocks, salt-coal detachment beds, north-southern adjusting faults and basin-range boundary types as well as stress distribution. Except deformation bands of porous sandstones, the study also shows that structural strain properties of the Cretaceous tight sandstones buried bigger than 6500~7000m in depth are similar to that of limestones, which will easily produce more effective fractures accompanying late uplift and/or intense structural strain. This consideration is important for prediction of deep buried sandstone reservoirs in the study area.
%K Sandstone reservoir
%K Diagenesis
%K Structural strain
%K Deformation band
%K Structural heterogeneity
%K Kuqa subbasin<br>砂岩储层
%K 成岩作用
%K 构造应变
%K 变形条带
%K 构造非均质性
%K 库车坳陷
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=5172D968C8696388108BB15B9187CCB5&yid=DE12191FBD62783C&vid=C5154311167311FE&iid=F3090AE9B60B7ED1&sid=CD86F4EEA1B1928E&eid=48E05C7FFAD0392D&journal_id=1000-0569&journal_name=岩石学报&referenced_num=1&reference_num=44