爪哇盆地东北部baruna - jaya线二维地震反射剖面地震相分析

T. Wiguna, Rahadian Rahadian, S. Ardhyastuti, S. Rahmah, T. Zera
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引用次数: 1

摘要

爪哇盆地东北部Baruna线和Jaya线的二维地震剖面显示了地震反射特征,可以用来解释沉积物厚度和连续性。这些反射体特征可用于地震相分析,代表沉积环境。本研究从地震资料处理入手,采用Kirchhoff叠后时间偏移方法,得到二维地震剖面。对两个2D剖面进行了地震反射体表征。地震反射器的特征分为(i)单个反射,(ii)反射配置,(iii)反射终止,(iv)外部形式。个体反射特征表现为高中幅、中低频、连续。配置反射有连续型平行型和次平行型。反射终止显示覆盖,外部形式显示床单褶皱。局部土丘外观可解释为古礁。研究区相地震分析结果为陆架。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SEISMIC FACIES ANALYSIS ON 2D SEISMIC REFLECTION PROFILE IN BARUNA AND JAYA LINE AT NORTH EAST JAVA BASIN
Two dimension (2D) seismic profile of Baruna and Jaya lines at North-East Java Basin show seismic reflector characteristics that can be used to interpret sediment thickness and continuity. Those reflector characteristics that can be applied for seismic facies analysis that represent depositional environment. This study starts from seismic data processing that using Kirchhoff Post Stack Time Migration method which is 2D seismic profile as result. Seismic reflector characterization has been done to both 2D profiles. Seismic reflector characterization was grouped as (i) individual reflection, (ii) reflection  configuration, (iii) reflection termination, (iv) external form. Individual reflection characteristics show high and medium amplitude, medium and low frequency, and continuous. Configuration reflection is continuous with parallel and subparallel type. Reflection termination shows onlap, and external form shows sheet drape. Local mound appearance can be interpreted as paleo-reef. Facies seismic anlysis result for this study area is shelf.
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