环保局工作人员很快到达现场，他们发现很多街道的树木、花草、建筑物都覆盖着灰黑色的泥浆。
The environmental protection bureau staff rushed to the area, and found that trees, flowers and buildings in many streets were covered with gray, black slurry.
文中阐述了所研制水泥浆体系的设计原理，介绍了现场应用情况，并讨论了应用中有待进一步完善的问题。
The paper describes the design principle of the cement slurry system, introduces the field application case, and discusses the issues that should be further improved.
现场应用3口井表明，该水泥浆体系基本解决了薄油层、薄隔层的封固难题，有利于提高固井质量，节约固井成本。
Applications of 3 Wells direct that this system can solve downhole problems of cementing in thin oil reservoir and thin intercalated reservoir and save cementing cost.
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