大庆石油地质与开发2011，Vol.30Issue(1)：32-37,6.DOI:10.3969/J.ISSN.1000-3754.2011.01.007
基于高精度三维地震数据的碎屑岩沉积相精细研究——以松辽盆地北部齐家南地区四方台组为例
FINE STUDY OF CLASTIC SEDIMENTARY FACIES BASED ON HIGH-RESOLUTION 3D SEISMIC DATA -TAKING SIFANGTAI FORMATION OF SOUTH QIJIA IN NORTH SONGLIAO BASIN AS AN EXAMPLE
摘要
Abstract
With the continuous exploration and development of lithological-stratigraphic petroleum reservoirs, the fine studies on the sedimentary faeieses become more and more necessary to make clear of the time-space evolution characteristics of these sediments and moreover accurately identify the types and laws of the sandbodies. Taking Sifangtai Formation in South Qijia of North Songliao Basin as example, the method of recovering palaeo-geography environment changes is explored with the help of the fine studies of the sedimentary facieses by high-accuracy 3D seismic data. On the basis of grasping the sedimentary background of meandering river of the operation area, the seismic attributes of the coherent bodies that much better reflect the spread characteristics of the sediments are optimized, and furthermore the close sampling of the seismic data and attribute cut slices are gathered along Middle Sifangtai Formation. On the basis of the above, the changes of the sedimentary environment are interpreted. The studies show that the sandy sedimentary environment in river channels and so on continuously become less; but the muddy sedimentary environment in floodplain and so forth is on the contrary in this period, thus the process from lake progression to the rising of sedimentary base level is reflected. The results show that high-resolution 3 D seismic data can be directly used to finely study elastic sedimentary faeieses and analyze the evolution of the sediments and palaeo-environment with the help of taking the classified results of the sedimentary facieses for the region and single well as reference. This study method has the following features: good forecasting ability between wells; can realize continuous evaluation of 3D space and resume the evolution history of sedimentary environments; mapping the sedimentary facies figures from thin interval to big scale.关键词
三维地震/碎屑岩/古地理/沉积相/精细/松辽盆地Key words
3-D seismic exploration/ clastic rock/ palaeo-geography/ sedimentary facies/ fine/ Songliao Basin分类
能源科技引用本文复制引用
黄世伟,黄薇,林铁锋,吴海波,陈艳,陈果..基于高精度三维地震数据的碎屑岩沉积相精细研究——以松辽盆地北部齐家南地区四方台组为例[J].大庆石油地质与开发,2011,30(1):32-37,6.基金项目
国家重点基础研究发展计划"973"项目"火山岩储层及其油气藏识别与评价技术研究"(2009CB219307)和国家"十五"重大科技攻关项目(2003 BA613A)资助. （2009CB219307）
