Fall Pipe Rock Dumping Technology For Protection Of Subsea Pipeline In Deepwater

Hou, Jing (Research Institute of CNOOC) | Wei, Weirong (Shenzhen Branch of CNOOC) | Liang, Yu (Shenzhen Branch of CNOOC) | Sun, Qiwei (Shenzhen Branch of CNOOC) | Chang, Shijun (Shenzhen Branch of CNOOC) | Gao, Yuan (Shenzhen COOEC Subsea Technology Co.)



This paper is to summarize the challenges for Liwan gas field export pipeline during the rock dumping engineering design and fall pipe rock dumping execution, corresponding measures and acceptable criteria. The success of the project provides excellent experience for resolving pipeline free span and subsea infrastructure protection issues, which would be beneficial and used as reference for future deep water oil and gas development.

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