Numerical simulation study on emergency chain condition of gas field surface system

Gas field development blocks are generally divided into three systems such as nature gas gathering and transmission system, purification system and export system, among which accidents in any link will directly threaten the overall production safety of gas field. As an important part of security system, emergency chain system is worth studying. In this paper, a method for analyzing the emergency chain condition of gas field system is developed by clarifying the emergency chain shutdown logic, identifying the main risks, conducting numerical simulation, analyzing the result data and proposing the problem. This method has been successfully applied to the system of a gas reservoir, which provides a theoretical support for the safe production and operation of the production unit surface system.