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
雷朝阳1
作者信息
- 1. 中石化石油物探技术研究院有限公司 江苏 南京 211103
- 折叠
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.
Abstract
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 pre-stack 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Key words
Mechanism of overpressure formation/Eaton method/Pressure prediction model/Pre-drilling prediction引用本文复制引用
出版年
2024
NETL
NSTL
万方数据