---
title: "Aerosun assists in the successful repair of domestic subsea oil pipelines, with RTP pipe insertion technology achieving its first domestic application"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/256890681.md"
description: "Recently, the underwater oil pipeline repair project of 15.7 kilometers, in which Aerosun participated, was successfully completed. This repair innovatively adopted the \"pipe-in-pipe\" solution by inserting RTP pipes into the original carbon steel pipeline, marking the first application of this technology in the domestic underwater pipeline repair field"
datetime: "2025-09-11T09:59:22.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/256890681.md)
  - [en](https://longbridge.com/en/news/256890681.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/256890681.md)
---

# Aerosun assists in the successful repair of domestic subsea oil pipelines, with RTP pipe insertion technology achieving its first domestic application

Recently, the domestic 15.7-kilometer underwater oil pipeline repair project participated by Aerosun has been successfully completed. This repair innovatively adopted the "pipe-in-pipe" solution by inserting RTP pipes into the original carbon steel pipeline, marking the first application of this technology in the domestic underwater pipeline repair field

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