Key demand and risk analysis of deepwater oil and gas engineering technology and equipment in the South China Sea can help construct our country's deepwater oil and gas engineering independent innovation system. Through reviewing the current status of deepwater oil and gas engineering technology and equipment, this paper divides the technologies into four major fields: exploration, modes, drilling and completion, and production and transportation, and presents a four-level hierarchical evaluation model for deepwater oil and gas engineering. By means of Delphi expert investigation method and the weight factor judgment method. the technologies and equipment are quantitatively analyzed and their importances are ranked, and a risk analysis of the key equipment system is given. The results show that deepwater oil and gas exploration technology, advanced well type technology for efficient oil and gas development, semi-submersible drilling platform/drillship structure design and manufacturing technology, and so on are relatively important, and that the complex composition of deepwater oil and gas engineering equipment system and the harsh operating environment may lead to the high risk of drilling mud circulation system, riser system, subsea wellhead and X-tree system, etc. So it is necessary to control and reduce the probability of equipment failure through optimized design to ensure a safe and efficient development of deepwater oil and gas.

South China Sea  /  deepwater oil and gas engineering  /  key technologies and equipment  /  technology foresight