图六、Petrel立体王国显示了FMI解释出来的裂缝的倾角和方位角。总的大类可以被分成四个小类：N_E:N, N_S:S, E_W:E, and E_W:W。包括钻井引起的裂缝也被排在自然裂缝中的一类中（E-W-黑点显示）
图七、微震图像和离散分布的裂缝网格模型建立的“自然”裂缝。E_W:W 显示微震去曲线和E_W:W 系列裂缝相对应; E_W:E 显示微震曲线和E_W:E 系列裂缝相对应; E_W:W & E_W:E s前两种系列的联系; 所有系列显示所有的DFN和MS曲线。注意在DFN裂缝和MS曲线的非常好的一致性。
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总结
开发出了一个非常好的方法和工作流程来进行Barnett页岩气藏的描述和模拟。为页岩气藏生产而进行的气藏描述中非常重要的一环已经被解决，并且整个建模过程被详细的叙述出来。这个流程中非常重要的部分已经在许多相关的领域被应用。3D倾角测井可以通过地震参数帮助的随机模拟来实现；FMI解释的裂缝系统可以通过DFN建模在3D空间实现分布。倾角和裂缝的方向对于水力压裂设计都非常重要。结合合适的微震数据，完井数据和水力压裂数据，射孔井段，长度和泵的使用计划，典型的生产历史，非常重要的裂缝网络敏感因素可以通过数值模拟得到。接下来可以进行油藏历史拟合，藉此，有效的动态预测已经可以完成。未来实现真正的裂缝造缝过程控制，必须进行地质力学建模和采用合适的操作方法。这个工作流程在研究领域已经得到非常广泛的关注，并且对Barnett页岩气藏提供了更加深刻的理解。
鸣谢
感谢作者非常感谢斯伦贝谢公司的经历承诺发表这篇文章。感谢Brad Hay在斯伦贝谢交叉的帮助和支持。非常感谢Marc Thiercelin, Wenyue Xu, Jack Liu 和 Ruhao Zhao提供的技术交流。
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