砂岩薄互层AVO正演模型研究
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摘要
由于薄互层单个含气砂体厚度较小,较难直接分析出含气结果,可利用AVO技术进行正演模拟,以达到识别油气的目的。为此,以苏里格某工区A井和B井为研究对象,根据实际测井资料及分层数据,进行了砂岩体薄互层介质AVO正演模拟,并与实际地震剖面进行了对比分析。结果表明,AVO正演模拟与实际地震资料特征基本一致。
Because of the small thickness of thin interlayers of single gas-bearing sand,it was hard to directly analyze the result,AVO technology could be used to distinguish oil and gas by forward simulation.Therefore,Well A and Well B of a operation area in Sulige Gas-field were used as object of study,based on actual logging and zoning data,the AVO forward modeling of thin interbeded sandstone was carried out by using AVO forward model,and the result was compared with earthquake profile data.The results show that the result of AVO forward modeling is consistent with actual seismic data.
Because of the small thickness of thin interlayers of single gas-bearing sand,it was hard to directly analyze the result,AVO technology could be used to distinguish oil and gas by forward simulation.Therefore,Well A and Well B of a operation area in Sulige Gas-field were used as object of study,based on actual logging and zoning data,the AVO forward modeling of thin interbeded sandstone was carried out by using AVO forward model,and the result was compared with earthquake profile data.The results show that the result of AVO forward modeling is consistent with actual seismic data.
引文
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[5]马中高,管路平,贺振华,等.利用模型正演优选地震属性进行储层预测[J].石油学报,2003,24(6):35～39.
[6]程冰洁,张玉芬.AVO简化方程的物理意义及其在油气识别中的应用[J].物探化探计算技术,2003,25(1):89～93.
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