More than 50 basins worldwide are identified as “super basins,” defined as a basin with cumulative production of at least 5 billion BOE (∼0.8 billion m3) and with future production potential of more than 5 billion BOE. By this definition, the Anadarko Basin is a super basin; cumulative production is close to 50 billion BOE (∼7.9 billion m3) and unconventional reservoirs have the potential to produce another 50 billion BOE. At least 10 characteristics justify classification of the Anadarko Basin as “super,” namely, 8 key geologic elements and 2 technical and surface characteristics. First, the most important characteristic of a super basin is its source rocks. The Woodford Shale is the dominant source rock in the Anadarko Basin. It has generated and expelled more than 300 billion BOE (more than 47.7 billion m3). Second, the basin was initiated by a failed rift in the late Precambrian–middle Cambrian. Third, the basin was filled with 40,000 ft of Paleozoic strata and multiple reservoirs. Fourth, because of the absence of significant structural inversion in the basin proper, source rocks and migrated oil and gas are mostly mature and relatively predictable with regard to depth of generation. Fifth, a critically important attribute is the left-lateral, north-south basement strike-slip fault system. Sixth, these faults and related fractures along with unconformities and laterally continuous reservoirs provide abundant migration pathways to good regional and local seals. Consequently, the number of accumulations of petroleum is very large and the styles of traps are numerous and varied. Seventh, among the attributes that make the basin productive are numerous cells of overpressured strata and, eighth, an overall paragenetic history that resulted in the development of porous reservoirs. The ninth and tenth features are technological advances and surface conditions, respectively. As a result, the Anadarko Basin has a history of significant conventional oil and gas production and a bright promise of significant nonconventional production.

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阿纳达科“超级”盆地：了解其生产力的 10 个关键特征

全球有 50 多个盆地被确定为“超级盆地”，其定义为累积产量至少为 50 亿桶油当量（约 8 亿立方米）且未来生产潜力超过 50 亿桶油当量的盆地。根据这个定义，阿纳达科盆地是一个超级盆地；累计产量接近 500 亿桶油当量（约 79 亿立方米），非常规油藏有可能再生产 500 亿桶油当量。至少有 10 个特征证明阿纳达科盆地被归类为“超级”，即 8 个关键地质要素和 2 个技术和表面特征。首先，超级盆地最重要的特征是其烃源岩。伍德福德页岩是阿纳达科盆地的主要烃源岩。已产生和排出超过3000亿桶油（超过477亿立方米）。第二，盆地起源于前寒武纪晚期—中寒武纪的断裂裂谷。第三，盆地充满了 40,000 英尺的古生界地层和多个储层。第四，由于盆地本身没有明显的构造反转，烃源岩和运移的油气大多成熟，生成深度相对可预测。第五，一个极其重要的属性是左旋、南北走向的基底走滑断层系统。第六，这些断层和相关裂缝以及不整合面和横向连续储层为良好的区域和局部密封提供了丰富的运移通道。因此，石油聚集的数量非常多，圈闭的类型也多种多样。第七，在使盆地富有生产力的属性中，有许多超压地层单元，第八是导致多孔储层发育的整体共生历史。第九个和第十个特征分别是技术进步和表面状况。因此，阿纳达科盆地拥有大量常规石油和天然气生产的历史，以及大量非常规生产的光明前景。