高勘探程度区储层描述技术的探索与思考  

Researching and thinking of reservoir description technology for high degree of prospecting area

作　　者：刘浩杰[1] 王延光[1] 孟宪军[1] 夏吉庄[1] 

机构地区：[1]胜利油田分公司物探研究院,山东东营257022

出　　处：《油气地球物理》2016年第1期1-11,共11页Petroleum Geophysics

摘　　要：高勘探程度区仍然有巨大的资源潜力,需要进一步发展储层描述技术来不断开拓新的油气勘探领域。本文首先介绍了在高勘探程度区储层描述技术研究中的两项探索性工作:一是针对高勘探程度区测井资料丰富的特点,创新提出了基于系统辨识提高地震资料分辨率方法,利用测井、地震资料的联合计算地层对地震波吸收特性,对地震资料衰减的高频进行补偿,拓宽地震资料优势频带10Hz左右,通过波阻抗反演能够更精确地刻画储层的空间展布特征;二是针对地震波吸收衰减属性反演这一难点,创建了地震频带岩石物理理论模型,分析了地震波吸收衰减性质与储层物性及孔隙流体特性的理论关系,提出了叠后地震资料吸收衰减参数计算方法和叠前纵、横波速度、密度和品质因子同步反演方法。对储层描述技术未来的发展做了思考,提出了储层描述技术可能的重要研究方向:基于数字岩心技术的岩石物理分析技术、地震动力学特征参数反演技术、地震、测井和油藏动静态资料的深度融合应用。The reservoir description technologies are still needed to be developed to constantly open up new oil-gas exploration domain as the high degree of prospecting area still has great potential for finding more resources. First- ly, the paper firstly introduces two exploratory jobs for the reservoir description technologies in the high degree of prospecting area： 1） Aimed at the rich logging information in the high degree of prospecting area, a new method has been proposed to improve the seismic data resolution based on the system identification. Then the absorption characteristics of the stratum for the seismic waves is calculated by the combination of the logging information and the seismic data, and the attenuated high frequencies are compensated in the seismic data, the dominant frequency bands of the seismic data are broadened about 10Hz, the features of the spatial distribution of the reservoir could be described more exactly by the wave impedance inversion. 2） Aimed at the difficulty of the attribute inversion of the seismic wave attenuation by absorption, the rock physical model of the seismic frequency band is proposed, the the- oretieal relations between the properties of the seismic wave attenuation by absorption and the reservoir physical property and the pore fluid characteristics are analyzed, the post-stack seismic data attenuation by absorption pa- rameter calculation method and the S wave and P wave velocity, density and Q are inversed simultaneously from pre-stack seismic data. By thinking about the development of the reservoir description technology in the future, the possible important research direction of the reservoir description are pointed out： the rock physics analysis based on the digital core technique, seismic dynamics characteristics parameter inversion and the application of the deep- ly integrated seismic data, logging information and reservoir dynamic/static state data.

关 键 词：高勘探程度区 储层描述 提高分辨率 吸收衰减 地震岩石物理 

分 类 号：TE122.2[石油与天然气工程—油气勘探]