Abstract The thickening effectiveness of two commercially available herding agents (OP40 and TS6535) was investigated parametrically in small-scale laboratory experiments with two different crude oils (ANS - Alaska North Slope and Grane). Both fresh and emulsified in cold water conditions were used in order to provide further information for in-situ burning operations in an Arctic context. Two application procedures for the herder, as well as variations in the duration of the tests, were other variations in the study. Both herding agents demonstrated the ability to obtain the minimum oil slick thickness (1–5 mm) required for successful in-situ burning. OP40 was more efficient for short periods than TS6535, whereas TS6535 remained active for long periods (up to 400 h). Both herders were more efficient in pre-spill application than post-spill application of the herder. The herder monolayer was not affected during burning and was still active once the burning ceased. Nonetheless, some contradictory results were found over a range of parameters, but are still in line with previously reported findings. Further systematic studies study based on physical/chemical characteristics of the oils and herders are required to fully establish the physical dependencies.

中文翻译：

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两个牧人在水上原地燃烧原油增稠效果的实验研究

摘要 在使用两种不同原油（ANS - 阿拉斯加北坡和 Grane）的小规模实验室实验中，通过参数研究了两种市售的驱赶剂（OP40 和 TS6535）的增稠效果。新鲜的和在冷水条件下乳化的都被使用，以便为北极环境中的原位燃烧操作提供进一步的信息。牧民的两个应用程序以及测试持续时间的变化是研究中的其他变化。两种驱赶剂都展示了获得成功原位燃烧所需的最小浮油厚度（1-5 毫米）的能力。OP40 在短期内比 TS6535 更有效，而 TS6535 长时间保持活跃（长达 400 小时）。与牧民的泄漏后应用相比，这两个牧民在泄漏前施药的效率更高。在燃烧过程中，牧民单层不受影响，一旦燃烧停止，它仍然活跃。尽管如此，在一系列参数上发现了一些相互矛盾的结果，但仍与先前报告的结果一致。需要根据油料和牧草的物理/化学特性进行进一步的系统研究，以完全确定物理依赖性。