模拟退火随机反演技术在苏德尔特油田贝14工区兴安岭群储层预测中的应用
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摘要
Jason模拟退火随机地震反演方法是一项用于油田开发区块和提高储层描述精度及油气识别的重要技术。为了解决苏德尔特油田贝14工区兴安岭群储层空间变化,通过建立地质模型,综合地震、测井及地质等信息对贝14工区开展了模拟退火地震反演工作,利用本区反演成果,并综合多种资料进行分析,阐明了主力油层的分布范围、空间展布形态,纵向上为多套砂岩叠置,平面上表现为多期的特点,物源以东北向为主,反演剖面上呈条带状发育或透镜状的砂体表现为垂直物源或斜交物源方向,呈前积结构的反演剖面表现为顺物源方向。利用模拟退火随机反演有利于指导开发后期对储层特征的认识,为以后部署井位提供强有力的佐证。
Jason stochastic seismic invertion method of simulated anneal is applied in developing oilfield blocks,improving reservoir description precision and oil-gas identification.In order to understand the spatial changes of Xing'anling group reservoir in Suderte oilfield Bei14 block,this paper,according to seismic,logging and geological information,applies the stochastic seismic invertion method of simulated anneal on Bei14 block,illustrates the distribution and spatial morphology of major reservoirs,occurring as overlapped sandstones vertically,multi-stages in plan,and NE sources.On invertion section the ribbon-like or lenticular sandstones are vertical or inclined to source orientation,while on invertion section with progradation configuration parallel to source orientation.This method is useful to understand the reservoir character during late development period and to allocate boreholes.
Jason stochastic seismic invertion method of simulated anneal is applied in developing oilfield blocks,improving reservoir description precision and oil-gas identification.In order to understand the spatial changes of Xing'anling group reservoir in Suderte oilfield Bei14 block,this paper,according to seismic,logging and geological information,applies the stochastic seismic invertion method of simulated anneal on Bei14 block,illustrates the distribution and spatial morphology of major reservoirs,occurring as overlapped sandstones vertically,multi-stages in plan,and NE sources.On invertion section the ribbon-like or lenticular sandstones are vertical or inclined to source orientation,while on invertion section with progradation configuration parallel to source orientation.This method is useful to understand the reservoir character during late development period and to allocate boreholes.
引文
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[5]周建宇.埕岛油田埕北246井区储层反演方法与效果[J].油气地质与采收率,2005,6(27):45-48
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[8]康德权.大庆三肇地区开发地震连片处理技术研究[J].资源与产业,2009,11(1):82-85
[9]高兴有,李颖.应用开发地震技术进行徐家围子储层构造和岩性反演[J].资源与产业,2006,8(6):98-101
[10]慎国强,孟宪军,王玉梅,等.随机地震反演方法及其在埕北35井区的应用[J].石油地球物理勘探,2004,2(1):75-83
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