论文部分内容阅读
目前油田的油、气、水输送管线已进入中、后期，相当一部分管线因腐蚀严重而不能使用，而管线的预制、铺设和更新费用又相当昂贵。因此，如何延长老管线的使用寿命已引起人们的关注。本文着重讨论用于管道内修复方面的一种涂衬方法，即管道内挤压涂村工艺的基本概念、挤压涂衬过程及其优缺点，尤其介绍了一种新型的双球行走器挤压涂村法，以便于管道工程人员在进行管道内修复时有所借鉴。
At present, the oil, gas and water transmission pipelines of the oilfields have entered the middle and late stages. A considerable part of the pipelines can not be used due to serious corrosion and the cost of prefabrication, laying and renewing of pipelines is quite expensive. Therefore, how to extend the service life of the old pipeline has drawn people’s attention. This article focuses on a coating method for in-pipe repair, the basic concept of extrusion coating in the pipeline, the process of extrusion coating and its advantages and disadvantages, especially the introduction of a new type of double-ball walker squeeze Press the village law, in order to facilitate the pipeline engineers in the repair of the pipeline for reference.