复杂断层数值建模及程序接口实现  

The modeling methods of complex faults and the output file for Adina program

作　　者：郭颖星[1] 祝爱玉[1] 孙丰成[2] 张东宁[1] 

机构地区：[1]中国地震局地球物理研究所,中国北京100081 [2]中国海洋石油总公司研究总院,中国北京100028

出　　处：《地震地磁观测与研究》2016年第2期90-97,共8页Seismological and Geomagnetic Observation and Research

基　　金：中国地震局地球物理研究所中央级公益性科研院所基本科研业务专项(DQJB14B07);地震行业专项--芦山7.0级地震孕育发生机理及其影响研究(201408014)共同资助

摘　　要：数值模拟计算是地学研究领域一个不可缺少的分支,其中一个重点和难点为如何精确快速地建立研究对象的数值模型,常用数值计算软件或者建模能力较弱,或者建模方法较为困难,制约着数值计算的准确度和精确性。本研究中,利用油藏地质研究中常用的Petrel软件,针对南北地震带鲜水河断裂带、龙门山断裂带及周边复杂地质构造进行建模研究,解决复杂断层(如倾斜断层甚至铲状断层)之间连接、切割等建模难点,并考虑地形及地层对网格构建过程的影响,实现复杂地质构造的快速建模。同时,构建Petrel与Adina等软件网格数据之间的接口程序,实现网格数据的相互移植,为进一步进行模型有限元模拟计算创造条件。以龙门山—鲜水河断裂带的三维地质模型构建为例,通过Petrel软件的快速建模及Adina软件的有限元计算,提供一种模型快速构建与大型有限元计算相结合的新途径。Numerical simulation is an indispensable branch of geo-scientiifc research, in which, modeling of the research object is a key and difficult point. The common numerical calculation software has shortcomings such as having weak data modeling capabilities or being complex in modeling, which greatly limit the accuracy and precision of the results of calculations. In this study, we modeled the complex geological structure of Xianshuihe, Anninghe and longmenshan fault zone and its surrounding area in North-South seismic belt with the Petrel software. We solved the difficulties of connection, cutting between complex faults （such as tilted faults or listric faults） with considering the inlfuence of terrain. Furthermore, data interface between Petrel and Adina was built to realize mutual transplantation of grid data. Taking the 3D geological model of Xianshuihe and Longmenshan faults for example, we provide a new way of combining the quickly model and ifnite element calculation by the Petrel and Adina software sets.

关 键 词：复杂地质模型 PETREL ADINA 软件接口 

分 类 号：P315.8[天文地球—地震学]