Design Analysis of Wellhead Safety Control System Applied in High-Sour Gas Field

The cooperative development of CDB high-sour gas field has lasted for more than 1 year. Currently, it is in the stage of Detailed Design (DD). According to the design discussion in the phase of preliminary design, the design of CDB wellhead control system is of great differences from oversea design philosophy, and resulting in great disagreement. The typical wellhead safety control system design proposals both oversea and domestical are presented, meanwhile, the current wellhead control design is compared with the conventional ones. The optimal design proposal fitting for this program is recommended.