| 塔中奥陶系碳酸盐岩储层缝洞特征 |
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| 引用本文： | 唐洪,谢琳,苏波,韩涛.塔中奥陶系碳酸盐岩储层缝洞特征[J].中国石油大学学报(自然科学版),2013(2):7-13. |
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| 作者姓名： | 唐洪 谢琳 苏波 韩涛 |
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| 作者单位： | 西南石油大学资源与环境学院;四川省高校天然气地质重点实验室;中国石油测井有限公司油气评价中心;塔里木油田开发事业部油藏部 |
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| 基金项目： | 油气藏地质及开发工程国家重点实验室开放项目(国重科研G2) |
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| 摘 要： | 利用岩心、FMI成像和常规测井资料,采用统计分析和随机建模的方法对塔中奥陶系碳酸盐岩储层缝洞特征进行分析、定量计算和预测。结果表明:研究区奥陶系碳酸盐岩缝洞发育层段,电阻率出现明显低值,深浅幅度差最大,声波时差增大,密度降低;鹰山组裂缝比较发育,其储层裂缝渗透率远高于基质渗透率,表明缝洞对于改善奥陶系储层渗流特性非常明显。
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| 关 键 词： | 储层 裂缝描述 随机建模 碳酸盐岩储层 奥陶系 |
| 收稿时间： | 2012/9/6 0:00:00 |
Fracture and vug character of Ordovician carbonate reservoir in Tazhong Oilfield |
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| TANG Hong,XIE Lin,SU Bo and HAN Tao.Fracture and vug character of Ordovician carbonate reservoir in Tazhong Oilfield[J].Journal of China University of Petroleum,2013(2):7-13. |
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| Authors: | TANG Hong XIE Lin SU Bo and HAN Tao |
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| Institution: | 1.School of Resource and Environment,Southwest Petroleum University,Chengdu 610500,China; 2.Sichuan Province University Key Laboratory of Natural Gas Geology,Chengdu 610500,China; 3.Oil & Gas Evaluation Center of CPL,Xi’an 710054,China; 4.Reservoir Section of Exploitation Department of Tarim Oilfiled,Kuerle 841000,China) |
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| Abstract: | Statistical and stochastic modeling methods were adopted to analyze, quantitatively calculate and predict carbonate reservoir fracture and vug character of Ordovician reservoir in Tazhong Oilfield based on core, FMI and normal wireline logging data. The results show that fractures and vugs developed intervals are characterized by obvious low resistivity and maximum amplitude difference, high interval transit time and low logging density. Fractures are developed in Yingshan formation, which makes fracture permeability become largely higher than matrix permeability. Fractures and vugs have obvious effects on reservoir reconstruction and flowing proterties. |
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