石油学报 ›› 2006, Vol. 27 ›› Issue (1): 30-33.DOI: 10.7623/syxb200601006

• 地质勘探 • 上一篇    下一篇

塔里木盆地志留系沥青砂岩储集性非常规评价

陈强路1,2, 范明2, 尤东华1,2   

  1. 1. 中国石化石油勘探开发研究院西部分院 新疆乌鲁木齐 830011;
    2. 中国石化石油勘探开发研究院无锡石油地质研究所 江苏无锡 214151
  • 收稿日期:2005-03-29 修回日期:2005-07-04 出版日期:2006-01-25 发布日期:2010-05-21
  • 作者简介:陈强路,男,1969年8月生,2004年获中国地质大学(武汉)硕士学位,现为中国石化石油勘探开发研究院无锡石油地质研究所高级工程师,主要从事储层地质及油气成藏方面的科研工作.E-mail:chql-111@vip.sina.com
  • 基金资助:
    中国石油化工股份有限公司科技项目(P03065)资助.

Non-traditional method for evaluating physical property of Silurian bitumen sandstone reservoirs in Tarim Basin

Chen Qianglu1,2, Fan Ming2, You Donghua1,2   

  1. 1. West Branch Institute for Research Institute of Petroleum Exploration and Development, Sinopec, Urumqi 830011, China;
    2. Wuxi Research Institute of Petroleum Geology, Sinopec, Wuxi 214151, China
  • Received:2005-03-29 Revised:2005-07-04 Online:2006-01-25 Published:2010-05-21

摘要: 塔里木盆地志留系沥青砂岩在宏观上以块状、顺层状、不均匀斑块状分布;在微观上,不同性质的沥青以充填状、侵染状充填于孔隙及胶结物中.实验表明,常规物性分析不能客观地表征被不同性质沥青充填的砂岩的储层物性及孔隙结构,因此在定量测算的基础上,提出了用残余孔隙度和残余渗透率来客观表征沥青砂岩储层物性及孔隙结构的方法.进一步的实验研究表明,低粘度原油可以再次充注残余孔隙度大于4%的沥青砂岩并溶解其中的有机质,使其残余孔隙度和残余渗透率大幅度提高,从而成为有效储层.

关键词: 塔里木盆地, 志留系, 沥青砂岩, 储层物性, 孔隙结构, 表征方法

Abstract: The Silurian bitumen sandstone in Tarim Basin is spread in the bulk-like,layer-like and heterogeneous spot-like styles in macroscopic scale,while different types of bitumen are filled in the pores and cementations with the filling-type and surrounding-type in microscopic scale.The experimental results show that the traditional analysis on physical properties of sandstone cannot describe the reservoir characteristics and porous structures of different sandstones filled with different types of bitumen.The quantitative measurements were made,and a new method for describing the reservoir characteristics by the use of residual porosity and resdidual permeability was proposed.The further experiment shows that the low-viscosity oil can fill the bitumen sandstone with the residual porosity higher than 4% and dissolve the organic matters,which greatly increase the residual porosity and residual permeability of bitumen sandstone.This kind of sandstone becomes the effective reservoir.

Key words: Tarim Basin, Silurian, bitumen sandstone, reservoir characteristics, porous structure, characterization method

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