The combination probability,the possibility that at least one segment contains hydrocarbons,can be used to assess the discovery probability of a trap.Obviously,‘at least one segment containing oil/gas’ reflects all possibilities of trap combinations.However,some traps should not be treated as one combination due to the constraint of special geo-logical conditions.The trap combinations have direct influences on the estimation of geological resource .In order to cal-culate trap combination probability under the constraint of geologic models,this paper first cleared geological meaning of current evaluation model for segment and demystified its mysterious hype .It is in fact a classical Bayes mathematical model consisting of marginal and conditional probability ,which quantifies separately the overall accumulation conditions or play-level and local accumulation conditions .Geological correlations do exist among different traps when hydrocar-bons accumulate in them,thus the evaluation of single trap should be based on the prerequisite of possibility of overall hydrocarbon accumulation.Secondly, corresponding to the value range of marginal probability , this paper recognizes three geological risk dependence types including full independence,partial dependence and full dependence.These de-pendence types can directly determine which traps are concordant with current geologic knowledge .Finally, an im-proved probability tree technique was designed for the petroleum integrated assessment software ( PetroV) .When inte-grated with the non-deterministic volumetric method , it can realize resource volume estimation through ‘summation of probability combinations based on geological risk dependency ’ .Case study shows that geological risk dependence types play a key role in quantitative evaluation of traps and mapping of uncertain petroleum resource distribution correspond-ing to reasonable geologic model interpretations.%“至少有一个次级圈闭含有油气”的组合概率分析技术可评价圈闭的含油气性,评价结果反映了所有可能同时含有油气的圈闭组合形式。但受限于客观地质条件约束,有些圈闭是不应该同时出现的———不同圈闭组合形式对资源量计算有直接影响。为了计算符合地质模型约束的圈闭组合概率,界定了次级圈闭的含油气性定量评价模型的地质涵义,指出次级圈闭含油气性评价本质上是遵循贝叶斯分析原则,包括边际概率和条件概率两部分评价内容,分别体现全局成藏和局部成藏的可能性。首先,强调不同圈闭成藏时会存在明显的地质相关性,单个层圈闭的评价是以全局成藏可能性为前提进行评价;其次,通过对应边际概率的可能取值范围,区分了“完全独立”、“部分决定”和“完全决定”3种不同含油气性风险依赖类型,而不同依赖类型直接决定了到底哪些圈闭组合才符合当前地质认识;最后,为油气资源一体化评价软件平台( PetroV)设计了一种改进的概率树分析技术,与不确定性体积法有机结合,实现了“基于含油气性风险依赖的概率组合加和”资源量计算方法。实例证明,要想获得较为客观的圈闭定量评价结果,需要充分考虑其所属不同次级圈闭间的含油气性风险依赖类型,并依此为基础才能给出对应合理地质模型解释的不确定性油气资源量分布结果。
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机译:通过系统的教学方法设计讲座,(saTL)方法论概念概念在使化学家能够实现方面发挥着至关重要的作用。最近开发的基于概念的教学方法可能在促进理解化学概念和吸收化学重要理论基础的努力中发挥关键作用。 a. F. m. Fahmy和J. J. Lagowski是世界范围内通过这种新颖的教学模式建立年轻一代概念的主要人物。然而,他们的努力,直到最近已经大多是有机化学特定的。然而,saLTC教学方法同样适用于化学中的其他各个学科。因此,saTLC方法也可用于克服学生在理解任何化学实体对特定和所需化学作用的功效方面所面临的问题。本演示文稿概述了saTLC技术可能应用于与物理化学的许多方面相关的概念,这些概念将被整合在一个单元中,以促进化合物在任何研究人员所需的任何化学变化中的应用。