塔西南坳陷区域地震地层学研究

REGIONAL SEISMIC STRATIGRAPHY IN SOUTHWEST DEPRESSION OF TARIM BASIN.

在对地震反射资料进行品质分析的基础上，采用地震反射特征的“多参数法”划分地震相，用优势地震相来代表各层序的地震相类型，然后将单井相剖面和地面地质相剖面转换成时间域剖面，对地震剖面上的地震相进行标定，建立地震相与沉积相的关系，进而将地震相转换为沉积相。依据层速度、剩余层速度和钻井资料，建立岩性与速度量板，进行区域岩性预测。

On the basis of analysis of seismic data,this paper divided the seismic facies by using 'multi-parameter method' of seismic reflection,and represented seismic facies types of each sequence with superiority seismic facies,then converted single well facies section and outcrop section into time domain section to correlate seismic facies in seismic profile and establish the relation between seismic and sedimentary facies,and hence converted seismic facies into sedimentary facies regional lithology can be forecasted by establishing lithology-velocity crossplot based on the data of interval velocity and remaining interval velocity.