收稿日期: 2011-08-17
修回日期: 2011-10-23
网络出版日期: 2011-12-10
基金资助
国家科技重大专项大型油气田及煤层气开发项目“海相碳酸盐岩储层地震预测、油气藏描述技术研究”(编号：2011ZX05004-003)资助.
Types and Causes of “None string Beads” Fracture-cavity Reservoirs in Ordovician Carbonate of Tarim Basin
Received date: 2011-08-17
Revised date: 2011-10-23
Online published: 2011-12-10
塔里木盆地奥陶系碳酸盐岩中“非串珠状”缝洞型储层经钻探已取得较好效果，但目前针对其储层类型及成因的研究较少。根据碳酸盐岩缝洞储集体发育程度及受风化壳和裂缝的影响程度，将在地震剖面上表现为“非串珠状”反射的缝洞型储层划分为3种类型，分别是内幕缝洞体规模较小的缝洞型储层、距风化壳较近的缝洞型储层以及裂缝型储层，进行正演模拟，并与实钻资料结合，详细探讨各自的地震反射特征和地质成因。
关键词： 碳酸盐岩; “非串珠状”缝洞型储层; 裂缝; 古河道; 塔里木盆地
王洪求, 刘伟方, 郑多明, 敬兵, 董瑞霞, 张喜梅, 李胜军 . 塔里木盆地奥陶系碳酸盐岩“非串珠状”缝洞型储层类型及成因[J]. 天然气地球科学, 2011 , 22(6) : 982 -988 . DOI: 10.11764/j.issn.1672-1926.2011.06.982
Drilling of “none-string beads” fracture\|cavity reservoir has got a good effect in the Ordovician carbonate of Tarim basin, but the research about type and cause of the reservoir is not yet enough till now. Based on developing degree of cave-cleft bodies and influence of weathering crust and fracture, “none-string beads” fracture-cavity reservoirs in seismic section reflection are divided into three types, including reservoir with small scale inner cave\|cleft bodies, reservoir closer to weathering crust and fracture reservoir. Combining forward modeling with real drilling data, this paper discusses seismic reflection feature and geological genesis of each reservoir type in detail.
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