裂缝性孔隙介质储层参数全波形反演的高效计算  

High efficient calculation of reservoir parameter full waveform inversion in fractured porous medium

作　　者：张生强 李才 闫涛 王明臣 熊煜 韩立国[2] 

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300452 [2]吉林大学地球探测科学与技术学院,长春130026

出　　处：《地球物理学进展》2015年第5期2312-2323,共12页Progress in Geophysics

基　　金：国家科技重大专项(2011ZX05025-001-07)资助

摘　　要：基于BISQ机制的裂缝孔隙介质储层参数(孔隙度、固相密度和流相密度)全波形反演对于BISQ理论的推广应用以解决油气勘探和开发的实际问题具有重要意义.然而,庞大的计算量将限制其发展和应用.本文提出了将小生境主从式并行遗传算法与多震源混合激发采集技术相结合的方法来改善这一问题.最后,以双层的基于BISQ机制的二维裂缝孔隙介质模型为例,进行了储层参数反演的数值分析.数值反演算例结果表明:基于小生境主从式并行遗传算法和多震源混合激发采集技术的储层参数反演方法极大地提高了原小生境遗传算法储层参数反演的计算效率,为利用孔隙介质储层参数反演进行油气预测和油藏监测奠定了理论基础.The implementation of the reservoir parameter（including the porosity,solid phase density and fluid phase density）full waveform inversion in fractured porous medium based on BISQ mechanism has important significance to the extension of the BISQ theory application and the solution of practical problems in oil and gas exploration and development.However,its development and application will be confined by huge calculating amount.This paper proposes a combined method of niche master-slave parallel genetic algorithm and multi-source blended shooting technology to ameliorate this problem.Finally,we take the two-dimensional two-layered fractured porous medium model based on BISQ mechanism as an example,and carry out the numerical analysis of reservoir parameter inversion. Numerical results indicate that the proposed reservoir parameter inversion method based on niche master-slave parallel genetic algorithm and multi-source blended shooting technology greatly improves the computational efficiency of reservoir parameter inversion based on niche genetic algorithm,and lays the foundation for using reservoir parameter inversion in porous medium to implement petroleumgas prediction and reservoir monitoring.

关 键 词：储层参数全波形反演 裂缝孔隙介质 小生境主从式并行遗传算法 多震源混合激发 BISQ机制 

分 类 号：P631[天文地球—地质矿产勘探]