Project: Dongfang 13-2 Gas Fields Development Project

Time of completion: May 2019

Project introduction: The Dongfang 13-2 CEPB platform is located in Dongfang, 132km to the west of Dongfang City, Hainan, with water depth ranges from 64m to 98m. The scope of work includes the detailed design, procurement, onshore construction, and onshore and offshore commissioning of three jackets and two modules; the loadout, transportation and offshore installation of three platforms; the laying and pre-commissioning of four submarine pipelines with a total length of 224km, as well as the installation of expansion bends; the laying of two submarine cables with a total length of 27km.

Project highlights: The 24 inch submarine pipeline(195km) is the longest submarine pipeline independently laid by a Chinese company with up to 4.02km per day pipe-laying record. The CEPB platform is the largest, heaviest, and the most complex central platform fabricated in the western South China Sea. It is constructed with large quantities of 10,000 PSI duplex steel materials and the whole process of float-over installation was rehearsed using the virtual simulation technology.