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油、水井固井质量评价中 ,利用地层波的强弱进行固井 界面胶结评价存在一定缺陷。针对这种情况 ,利用声波变密度测井和伽马密度测井资料 ,同时考虑到反映岩性变化的自然伽马测井曲线与地层波衰减的一致性 ,对固井 界面胶结状态进行综合分析。编制了综合评价解释软件 ,在大庆油田西 2 - PX井等 4口井固井质量解释中应用 ,取得了较好的效果。
Oil and water well cementing quality evaluation, the use of stratigraphic wave strength cementing cementing interface evaluation there are some defects. In view of this situation, using acoustic variable density logging and gamma density logging data, considering the coincidence of natural gamma ray logging curves reflecting lithology changes and formation wave attenuation, the cementing interface cementation status is comprehensively analyzed . The comprehensive evaluation software was compiled and applied to explain the cementing quality of 4 wells in West 2 - PX well of Daqing Oilfield and achieved good results.