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徐春梅. 井控地震资料处理技术探讨[J]. 科学技术与工程, 2019, 19(33): 76-85.
xuchunmei.Discussion on Well-controlled Seismic Data Processing Technology[J].Science Technology and Engineering,2019,19(33):76-85.
井控地震资料处理技术探讨
Discussion on Well-controlled Seismic Data Processing Technology
投稿时间:2019-02-15  修订日期:2019-08-26
DOI:
中文关键词:  井控处理 速度建模 保真度 分辨率 成像精度 反演
英文关键词:well control processing velocity modelling fidelity resolution Imaging accuracy inversion
基金项目:
  
作者单位
徐春梅 中国石油化工股份有限公司石油物探技术研究院
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中文摘要:
      井控地震资料处理就是将有关井的信息引入到地震资料处理中,对相应的处理参数进行优化,提升地震资料处理成果的可解释性,解决好地下介质的构造成像和岩性参数的反演成像等基本问题。基于对前人利用微测井、测井、VSP信息进行井控地震资料处理的研究成果,归纳总结出了井控地震资料处理技术流程,分析了井数据介入地震资料处理的方式。将井控地震资料处理的作用概括为改善振幅的保真度、增强成果分辨率、提高成像的精度和提升反演的可信度四个方面,分别对井控振幅恢复、井控反Q滤波、井控反褶积、井控零相位化、井控近地表静校正、井控各向异性参数估算、井控速度建模及偏移、井控波阻抗反演等关键技术的实质和特点进行了介绍和评价,并归纳了井控地震资料处理量化质量控制方法。井控地震资料处理是一个强有力的井震结合的质量监控体系,弥补了无井控地震资料处理技术的不足,提高了地震资料处理成果的可信度和精度。
英文摘要:
      Well-control seismic processing incorporates well information into data processing procedure to optimize corresponding parameters,enhance the interpretability of processing outcomes and solve basic problems of structural imaging and lithological property inversion. The paper goes over previous studies on integrating micrologging, logging and VSP in well-control seismic data processing,summarizes typical well-control seismic data processing workflow, analyses methodologies. The study suggests that crucial stages in well-control seismic processing are wavelet estimation,removal of wavelet factor,velocity modelling,extraction anisotropic parameters and migration. The functions of well constraint in processing are generalized into 4 aspects:maintain amplitude fidelity,enhance resolution,boost imaging accuracy and improve impedance inversion reliability. The paper introduces and discusses on several aspects such as amplitude recovery,CRP gather data amplitude preservation evaluation, deconvolution, inverse Q filtering, zero phasing, impedance inversion, near-surface statics, well calibration, velocity modelling and anisotropy parameter estimation, providing well-control seismic data processing workflow, and also describes the quantitative QC methods related to the wavelet and phase of seismic data. The result indicates that well-control seismic processing is a vigorous quality monitoring system which combines well and seismic to complement deficiencies of conventional processing as well as to enhance the reliability and accuracy of processing outcomes.
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