高灵敏度流体因子的构建原则及影响因素分析  

Analysis of influence factors and construction for high sensitivity fluid factor

作　　者：何玲[1] 马林[1] 贾艳雨[2] 

机构地区：[1]中国石油化工股份有限公司中原油田分公司,濮阳457000 [2]中国石油化工股份有限公司河南油田分公司,南阳473132

出　　处：《物探化探计算技术》2015年第2期203-207,共5页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：随着油气勘探和开发的深入,油气储集体越来越复杂,希望从地震资料中提取更多的反映储层及流体特征的信息,这对叠前反演技术和流体识别技术都提出了较高的要求。基于Gassmann方程构建的流体因子可较好地指示储层及流体,得到了较为广泛地应用,但因子构建的多样化、调节参数取值的主观化,以及单一追求流体识别因子的高敏感度等因素,制约了流体识别在实际应用中的实效性。通过对常用的流体识别因子进行解构,得到影响其敏感度的因素,结合叠前反演的参数进行新的流体因子构建,并与常用的流体因子进行对比分析。分析结果表明,新构建的流体因子具有较高的灵敏度和较好的有效性。With the exploration and development of oil and gas in depth,oil and gas reservoirs become complex increasing-ly,people want to extract more information of layer and fluid characteristics to reflect the reservoir from seismic data,the pres-tack inversion technology and fluid identification technology have been put forward to higher requirements than before.At pres-ent,fluid factor constructed on the Gassmann equation can indicate the reservoir and fluid better,so it has been widely used. But some factors restricts the effectiveness of fluid identification in practical application,which includes diversity of constructed factor,subjectivity of adjusting parameters,single subjective pursuit for the high sensitivity of fluid identification and other fac-tors.Based on the deconstruction of the fluid identification factor which commonly used,get the factors influencing the sensi-tivity of parameters.Combined with the parameters of prestack inversion to build new fluid factor,and compared with the fluid factor commonly used.Analysis results show that the new fluid factor has the higher sensitivity and better effectiveness.

关 键 词：高灵敏度 流体因子 GASSMANN方程 

分 类 号：P631.4[天文地球—地质矿产勘探]