Alder (HP/HT) Phase 2 & 3 Project
Client: Chevron UK (CPDEP)
Technical screening of a number of subsea development
options subject to hydraulic and system constraint;
Performed complete flow assurance studies involving steady state and
transient operations (cooldown, blow down and system restart), slugging
studies and Methanol requirement studies;
Performed pressure surge analysis following a number of possible choke
failure scenarios and recommend subsea tree spec and required valve
response times;
Top-of-line corrosion studies;
Performed dynamic simulation study to inform client on required
isolation valve and HIPPS response times and location required to
protect the pipeline from over-pressure;
Hydraulic study for the sizing of chemical injection and service lines;
Detailed well modelling of the production wells. Models applied to
investigate well instability during start-up and to evaluate the success
of possible stabilisation with gas recirculation. Aim was to prevent
possible well die-out due to high-water cut.
