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裂缝预测技术在钻井漏失风险中的应用

Application of fracture prediction technology in mitigating drilling loss risks
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摘要 在钻井易漏地区开展裂缝预测至关重要。通过不同尺度裂缝预测方法介绍,在地震资料品质分析和构造导向滤波处理的基础上,针对中石化MHS地区采用了地震相干属性结合地震解释成果对大尺度断层进行预测,小尺度断层采用最大似然方法进行预测,通过不同尺度断层的融合,综合预测该地区的裂缝发育程度,在后期的D1钻井跟踪应用中,钻井地质风险预测符合率达到97%,钻井周期比预期天数缩短11%。 Fracture prediction is crucial in areas prone to drilling loss.This study introduces prediction methods at various scales of fractures,incorporating seismic data quality analysis and structurally guided filtering.For the MHS region of Sinopec,seismic coherence attributes combined with interpretation results were used to predict large-scale faults,while the maximum likelihood method was applied for small-scale fault prediction.By integrating these results of multi-scale faults,the fracture development in the region was comprehensively predicted.During subsequent D1 well drilling,the prediction achieved a geological risk coincidence rate of 97%,shortening the drilling period by 11%compared to expectations.
作者 雷海飞 郝龙 刘勇江 陶守斌 LEI Haifei;HAO Long;LIU Yongjiang;TAO Shoubin(Technical Service Company for Shale Gas Production,Sinopec Jianghan Petroleum Engineering Corporation,Wuhan,Hubei 430206,China)
出处 《江汉石油职工大学学报》 2024年第6期24-26,29,共4页 Journal of Jianghan Petroleum University of Staff and Workers
关键词 裂缝漏失 最大似然 构造导向滤波 裂缝融合 drilling loss maximum likelihood structurally guided filtering fracture integration
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