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为保证管道焊缝处内补口涂层质量,自2011年起,塔中油田引进管道内防腐补口车技术,采用100%固含量无溶剂双组分液体环氧涂料,有效保证了管道焊缝内补口质量。管道内防腐补口车主要由行走、定位、供料、旋喷和控制等五个部分组成。施工工艺及控制要点包括焊缝表面处理,焊缝端部预处理,清理管道内沙尘,装料及试喷,补口定位,喷涂,固化,检测。目前,该技术在塔中油田被广泛应用,与传统的人工涂刷相比,施工效率和质量大大提高。
In order to ensure the quality of the bead coating in the pipe welds, since 2011, Tazhong Oilfield has introduced the technology of anticorrosive plugging pipes in pipes and adopted 100% solid solvent-free two-component liquid epoxy coating to effectively ensure the pipe welding Fill the quality of the mouth. The anticorrosive mouthpiece in the pipeline mainly consists of five parts: walking, positioning, feeding, rotating jetting and control. Construction techniques and control points include the weld surface treatment, weld end pretreatment, clean up the dust in the pipeline, loading and test spray, nozzle positioning, spraying, curing, testing. At present, the technology is widely used in the oil fields in Tazhong. Compared with the traditional manual brushing, the construction efficiency and quality are greatly improved.