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West Bay油田地处密西西比河三角洲上,介于环境变化大的沼泽地和开阔的海湾水域之间,水深0～30英尺。通常的二维勘探费用高且设备运移困难,由于存在地震信号的衰减,以前即便采用先进技术,采集的二维数据也达不到令人满意的质量。造成信号质量下降的因素有:浅层沉积的差异性(静电问题),浅层气储集,生产设备形成的强噪声,由于近处输油管的存在而造成的低叠加和近炮检距覆盖差等。
Located on the Mississippi Delta, the West Bay oil field is between 0 and 30 feet deep between a swampy environment and open bay waters. The usual two-dimensional exploration costs are high and the equipment is difficult to transport. Due to the attenuation of seismic signals, even two-dimensional data acquired before is not satisfactory even with advanced technologies. The factors contributing to the degradation of the signal quality are the differences in shallow sedimentation (electrostatic problems), shallow gas storage and strong noise generated by the production equipment, the low overlay due to the presence of the near pipeline and the near offset coverage difference Wait.