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摘要:
在滩浅海地区地震勘探中,一般采用多种类型的震源和检波器交叉施工。因震源、检波器和地表条件不同,造成地震记录在能量、频率和相位方面存在较大差异,严重影响了叠加效果。在对滩浅海地区地震资料的差异性分析基础上,利用子波匹配方法,采用激发一致性校正和接收一致性校正联合的双一致性处理技术,较好地解决了不同激发和不同接收条件造成的子波差异问题。在国外某区块勘探资料的实际处理过程中,双一致性处理技术有效消除了滩浅海资料在能量、频率及相位等方面的不一致性,取得了较好的成像效果。
Abstract:In the seismic exploration in coastal zone, several kinds of sources and receivers are common in use. Differences in shooting, receiving and surface conditions may result in different energy, frequency and phase of the record which seriously influence the stacking effect. Based on the difference analysis of seismic data in a coastal zone, with wavelet matching, using dual-consistency processing technique, combined with shooting consistency correction and receiving consistency correction, the problem of wavelet difference caused by different shooting and receiving conditions has been well solved. Taking the daily seismic data processing of a 3D Project in a foreign country as a case, we performed the dual-consistency processing and it has brought out good imaging results by eliminating the inconsistency of energy, frequency and phase.
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Key words:
- coastal zone /
- wavelet difference /
- dual-consistency /
- wavelet matching
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