深层地震钻前压力预测研究及应用  

Research and application of pre-drilling seismic pressure prediction in deep strata

作　　者：雷朝阳 Lei Chaoyang(Sinopec Geophysical Research Institute Co.,Ltd.,Nanjing 211103)

机构地区：[1]中石化石油物探技术研究院有限公司,江苏南京211103

出　　处：《石化技术》2024年第4期116-118,共3页Petrochemical Industry Technology

摘　　要：高精度钻前压力预测是地震-地质-工程一体化的关键技术之一。针对深层某工区钻前压力预测难题,通过测井曲线组合、Bowers法等方法实现超压成因的定量判别。通过层析建模速度与叠前反演速度的对比分析,证实叠前反演速度的精度满足研究区压力预测的要求。实际应用表明基于三维地震的钻前压力预测较准确地表征了研究区的超压特征,可为后续钻井工程设计与风险评价提供指导。High precision pre-drilling pressure prediction is one of the key technologies in the integration of seismic-geology-engineering.In response to the difficulty of predicting pre-drilling pressure in a certain work area of deep strata,quantitative identification of the cause of overpressure is achieved through methods such as well logging curve combination and Bowers method.Through comparative analysis of tomographic modeling velocity and prestack inversion velocity,it is confirmed that the accuracy of pre-stack inversion velocity meets the requirements of pressure prediction in the study area.Practical applications have shown that pre-drilling pressure prediction based on 3D seismic data accurately characterizes the overpressure characteristics of the study area,and can provide guidance for subsequent drilling engineering design and risk assessment.

关 键 词：超压成因机制 Eaton法 压力预测模型 钻前预测 

分 类 号：TE21[石油与天然气工程—油气井工程] P631.4[天文地球—地质矿产勘探]