地震属性技术在克拉玛依油田滑塌浊积岩圈闭勘探中的应用
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摘要
伴随着克拉玛依油田勘探开发程度的不断提高,可供钻探的构造圈闭数量不断减少,岩性圈闭逐渐成为主要的勘探目标。滑塌浊积岩岩性圈闭是克拉玛依油田五—八区重要的岩性圈闭勘探目标之一,同时也是储层预测的难点之一。地震属性分析技术可以从地震资料中提取隐含的有用信息,这些信息为解决复杂地质体的储层预测提供了一种有效的分析手段。本文在实践的基础上提出:结合区域地质概况、沉积相研究,在地震剖面上根据反射波同相轴的外部反射特征及内部反射结构识别浊积岩,再综合运用地震属性分析技术预测浊积岩岩性圈闭及确定其展布,是在无井地区预测浊积岩岩性圈闭的一种有效方法。
With the increasing development of Karamay oilfield exploration,the number of undrilled structural traps are decreasing gradually.Thus the lithologic traps become the main exploration target.The fluxoturbidite trap is one of the most important exploration targets from Zone 5 to Zone 8 in Karamay Oilfield,and is also one of the difficulties in reservoir prediction.The seismic attribution technique can be used to investigate the useful messages hidden in the seismic data.These messages provide an effective analytical means for reservoir prediction on complex geological bodies.Combined with the research on the general geology and sedimentary facies,this paper firstly recognizes the fluxoturbidite trap in light of the external resemblances and internal structures of the seismic cross-section,and then confirms the fluxoturbidite trap and forecasts its extension by means of the seismic attribution technique.
With the increasing development of Karamay oilfield exploration,the number of undrilled structural traps are decreasing gradually.Thus the lithologic traps become the main exploration target.The fluxoturbidite trap is one of the most important exploration targets from Zone 5 to Zone 8 in Karamay Oilfield,and is also one of the difficulties in reservoir prediction.The seismic attribution technique can be used to investigate the useful messages hidden in the seismic data.These messages provide an effective analytical means for reservoir prediction on complex geological bodies.Combined with the research on the general geology and sedimentary facies,this paper firstly recognizes the fluxoturbidite trap in light of the external resemblances and internal structures of the seismic cross-section,and then confirms the fluxoturbidite trap and forecasts its extension by means of the seismic attribution technique.
引文
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[2]姜在兴.沉积学[M].北京:石油工业出版社,2003.312～315.
[3]牛富玲.现河地区滑塌浊积岩油藏勘探技术[J].断块油气田,2005,12(1):16～19.
[4]罗红梅.地震属性技术在现河地区滑塌浊积岩油藏勘探中的应用[J].工程地球物理学报,2005,2(3):224～227.
[5]杨林.地震频谱分解技术应用中有关问题的讨论[J].石油物探,2008,47(4):405～409.
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