Depositional facies analysis and modeling of the Judy Creek reef complex of the Upper Devonian Swan Hills, Alberta, Canada
Depositional facies analysis and modeling of the Judy Creek reef complex of the Upper Devonian Swan Hills, Alberta, Canada
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DOI：
10.1306/05220908103
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发表时间：
2009-09
期刊：
影响因子：
3.5
通讯作者：
Y. Z. Ma;A. Seto;E. Gomez
中科院分区：
文献类型：
--
作者：
Y. Z. Ma;A. Seto;E. Gomez
朱迪溪位于阿尔伯塔中西部，是天鹅山油田最大的油藏之一。Judy Creek是上泥盆统天鹅山组的一个孤立的珊瑚礁复合体。该成熟油田已钻探约350口威尔斯井，岩心近6000米（19，685英尺），因此为沉积相分析和测试方法提供了良好的数据库，用于在相建模中整合描述性和定量数据。Judy Creek的一般沉积相和层序地层学研究已经相当广泛。然而，目前还没有建立三维数值相模型来指导油田开发。为这项研究建立这样一个模型的目的之一是建立一个紧密的联系相沉积分析和建模。事实上，在勘探和生产过程中，描述性分析和数值模拟之间存在着明显的脱节。沉积相分析的重点是概念上的理解前景生成和油藏描绘，而相建模强调数据挖掘油田开发。在这项研究中，一种方法，集成的空间倾向从沉积概念模型和相数据从威尔斯是用来弥合差距之间的沉积分析和随机建模。这种集成已被证明是至关重要的，在朱迪溪建立现实的地下模型，因为它有助于提高地下资源的估计。
Judy Creek, located in west-central Alberta, is one of the largest reservoirs in the Swan Hills oil field. Judy Creek is an isolated reef complex of the Upper Devonian Swan Hills Formation. This mature field has about 350 wells drilled and nearly 6000 m (19,685 ft) of cores and thus provides a good database for depositional facies analysis and testing methods for integrating descriptive and quantitative data in facies modeling. General depositional facies and sequence stratigraphy of Judy Creek have been studied quite extensively. However, no three-dimensional numeric facies model has been built to guide the field development. One of the objectives in constructing such a model for this study was to establish a close linkage between the facies depositional analysis and modeling. As a matter of fact, there have been significant disconnects between descriptive analysis and numeric modeling in the exploration and production. Depositional facies analysis has focused on conceptual understanding for prospect generation and reservoir delineation, whereas facies modeling has emphasized data mining for field development. In this study, a method that integrates the spatial propensity from the depositional conceptual models and facies data from the wells is used to bridge the gap between the depositional analysis and stochastic modeling. Such integration has proven to be critical in building realistic subsurface models in Judy Creek because it helped improve the estimation of subsurface resources.