穿越非均质致密碳酸盐岩气储层的水平井轨迹布置是影响油井产能成功的重要因素之一。正确的放置可以产生良好的产量，不正确的放置可能导致油井产能低下。研究了如何通过实施鱼骨完井技术来提高最初位于次优位置的现有单口水平井的井产能。

在本研究中，选择模拟机会指数（SOI）作为指示储层中剩余气体甜点的方法。 SOI 集成了从静态和动态参数中提取的三个独立分量：储层渗透率厚度、可动气体以及来自历史匹配动态模型的储层压力。通过使用 SOI，可以创建预期天然气甜点图；因此，低性能的现有井被用来利用鱼骨完井来开采周围潜在的最佳点，鱼骨完井由沿着水平部分放置的最大有效长度为 32 英尺的微小短针组成。

研究表明，现有低产量水平井的鱼骨式完井除了显着提高产量外，还可以使多层油藏环境中的井产能成倍增加。使用辅助历史匹配来探索鱼骨特征的最佳组合，例如容纳针的容器室所需的接头数量、最佳针长度以及放置接头和针的最佳侧向排水部分。同时运行许多变量的敏感性，并进行分析以确定最有效的参数以带来最高的油井采收率。

使用 SOI 方法来审查鱼骨完井的最佳候选井以及所需的接头和针放置不仅有助于恢复有问题的井的性能，而且还可以帮助节省资本支出和有效的项目调度，以适当的方式制造鱼骨。与盲鱼骨技术安装相比，接头和针的数量减少。

在这里找到完整的论文。

The trajectory placement of a horizontal well that crosses a heterogeneous tight gas carbonate reservoir is one of the important elements that contribute to the success of well productivity. Proper placement can yield good production, and improper placement may lead to low well productivity. An effort was studied to improve the well productivity from an existing single horizontal well that was initially placed in suboptimal location by implementing the fishbone completion technology.

For this study, the simulation opportunity index (SOI) was selected as a method to indicate the remaining gas sweet spot in the reservoir. SOI integrates three independent components extracted from static and dynamic parameters: reservoir permeability thickness, movable gas, and reservoir pressure from a historically matched dynamic model. By using SOI, a map of the prospective gas sweet spots can be created; hence, low-performance existing wells are used to exploit the surrounding potential sweet spots using fishbone completion, which consists of tiny short needles with a maximum effective length of 32 ft placed along the horizontal section.

The study revealed that the fishbone completion in an existing low-production horizontal well can multiply the well productivity in a multilayer reservoir environment in addition to the significant production gain. Assisted history matching was used to explore the best combination of fishbone features, such as the number of subs required as the container room to hold the needles, optimal needle length, and optimal lateral drain section in which to place the subs and needles. Many sensitivities with the variables were run at once, and an analysis was conducted to identify the most-effective parameter to bring the highest well recovery.

Using the SOI method to scrutinize the best well candidates for fishbone completion and the required sub and needle placement not only helps rejuvenate the performance of the problematic well but also can aid in generating capital-expenditure savings and efficient project scheduling to manufacture fishbones with a proper number of subs and needles compared with blind fishbone technology installation.

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