WELL START-UP SYSTEM AND PROCESS

摘要

A well start-up system consists of two boosting systems arranged in parallel. The system includes a fluid inlet line (4) for receiving inlet fluid from a well (1), a gas inlet line (8) connected to receive gas from the fluid inlet line (4), a multiphase inlet line (10) connected to receive multiphase fluid from the fluid inlet line (4), and a flow control system for controlling the flow of inlet fluid into the gas inlet line (8) and the multiphase inlet line (10). A gas-gas jet pump (16) is connected to receive inlet fluid from the gas inlet line (8), and high pressure gas from a supply (18). A multiphase pump (30) is connected to receive inlet fluid from the multiphase inlet line (10). A fluid outlet line (44) is connected to receive fluids from the gas pump outlet (24) and the multiphase pump outlet (38). The system is arranged such that during a first stage of a well start-up process when the inlet fluid is primarily gas, the inlet fluid is fed into the gas inlet line (8), and during a second stage of the well start-up process, when the inlet fluid is primarily multiphase fluid, the inlet fluid is fed into the multiphase inlet line (10).