| 蚀变火山岩储层特征及气水层识别方法 |
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| 作者姓名： | 王春燕 张雷 金雪英 |
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| 作者单位： | 1. 大庆油田有限责任公司勘探开发研究院,黑龙江大庆,163712
2. 东北石油大学地球科学学院,黑龙江大庆,163318 |
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| 基金项目： | 国家"973"重点基础研究发展计划项目，黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 为满足徐深气田火山岩精细评价的需求,以蚀变性火山岩为对象,研究蚀变作用对储层物性、孔隙结构、测井响应特征的影响;利用岩性指数和蚀变指数建立火山岩蚀变判别方法,并通过对电阻率进行蚀变影响校正,利用校后电阻率与孔隙度建立蚀变火山岩气水层识别方法,较好地解决蚀变火山岩测井解释难题,为有效勘探、合理开发提供技术支持.利用该方法对研究区18口验证井进行气水层解释,经试气资料验证,解释符合率达到85.7%,具有良好的应用前景.
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| 关 键 词： | 徐深气田 火山岩 蚀变 测井响应特征 气水层识别 |
Characteristics and fluid identification of altered volcanic reservoirs |
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| Institution: | WANG Chunyan1,ZHANG Lei2,JIN Yueying1(1.Exploration and Development Institute of Daqing Oilfield Company Ltd.,Daqing,Heilongjiang 163712,China;2.Geosciences College,Northeast Petroleum University,Daqing,Heilongjiang 163318,China) |
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| Abstract: | Alteration of volcanic rock exerts a decisive effect on pore structure of reservoir and log response,and has affected seriously precision of log interpretation,but domestic and international research seldom focuses on altered volcanic rock.In order to meet fine evaluation of volcanic rock of Xushen Gas Field,this paper takes altered volcanic rock for example,analyzes the impact of alteration on physical properties and pore structure of reservoir and log response,applies index of lithology and index of alteration to identify altered volcanic rock,and applies the plot of corrected resistivity and porosity to identify fluid properties after correction of alteration on resistivity,with better solution to log interpretation problems and more profound understanding of altered volcanic reservoir,and provides technical support for effective exploration and rational development.Applying this method to interpretation of 18 wells of study area,through the comparison of interpretation result and test data,the accuracy of interpretation is 85.7% with favorable application future. |
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| Keywords: | Xushen gas field volcanic rock alteration log response feature gas-water layer identification |
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