二维地震偏移剖面对比解释作图新方法
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摘要
在前人研究的基础上,提出了一种既可用于工作站又可用于人工解释的作图方法。本方法的基本要点是:①纵、横向剖面都用,不丢弃任何资料;②偏移剖面标定层位,无论是在水平地层、构造高点、构造低点还是倾斜地层部位,都无须校正,可直接用t0=2H／vα进行标定;③采用常规对比法和不等时对比法相结合的方法对比闭合剖面;④经过沿测线反向偏移或垂直测线作分量偏移解决平面图交点t0值闭合问题,然后再作等t0图和等深度图(也可不作等t0图而直接作等深度图)。实际应用结果表明本方法效果很好。
It is presented the interpreting construction method using workstation and handwork. This new method is simple and convenient in the abstract. The key point is ① It used to Vertically and horizontally direction, not reject any data; ② Migration section is demarcate stratum,using to t0 =2 H/vα directly not have to correction, Whether are level stratum, construction highness and lowness or dip stratum position; ③ Comparison close section using to routine contrasting and not time; ④Solving plan point to close to survey reverse migration or vertical survey act as migration weight, then do to map and fathom map (or do fathom map directly). Actual application and validation, the method has received good effect.
It is presented the interpreting construction method using workstation and handwork. This new method is simple and convenient in the abstract. The key point is ① It used to Vertically and horizontally direction, not reject any data; ② Migration section is demarcate stratum,using to t0 =2 H/vα directly not have to correction, Whether are level stratum, construction highness and lowness or dip stratum position; ③ Comparison close section using to routine contrasting and not time; ④Solving plan point to close to survey reverse migration or vertical survey act as migration weight, then do to map and fathom map (or do fathom map directly). Actual application and validation, the method has received good effect.
引文
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4祝伟业,张权.二维叠偏剖面作图中值得注意的问题[J].石油物探,2000,39(3):100-107
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6王彦辉,秦月霜,牛彦良.叠偏剖面三维偏移归位成构造图方法[J].大庆石油地质与开发,1997,16(2):59-61
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2 Whitcombe D N,Carroll R J.时间构造图偏移对二维偏移数据的应用[J].国外油气勘探,1995,7(4):451-463
3祝伟业,张天霞.三维补偿法在二维剖面作图中的应用[J].石油物探,1997,36(4):57-65
4祝伟业,张权.二维叠偏剖面作图中值得注意的问题[J].石油物探,2000,39(3):100-107
5顾先觉.速度多用曲线模型及其应用[J].西安石油学院学报,1995,10(2):14-18,21
6王彦辉,秦月霜,牛彦良.叠偏剖面三维偏移归位成构造图方法[J].大庆石油地质与开发,1997,16(2):59-61
7顾先觉.坐标平移分段拟合变V0、β的实际应用[J].河南石油,1993,7(1):10~19
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