®Copyright Expro 2014 WELL FLOW MANAGEMENT
Did you know? Global Training Course
• Adjustable choke and dynamic sealing
• When choke arrives offshore
• When should you check the adjustable choke?
• What to look out for on the adjustable
• Trouble shooting
• Feedback
®Copyright Expro 2014 WELL FLOW MANAGEMENT
Did you know?Global Training Course
“It is a good practice to turn the handle of the
adjustable stem during pressure testing whilst
it is under pressure”.
Why?
®Copyright Expro 2014 WELL FLOW MANAGEMENT
Arrival offshoreGlobal Training Course
• Right size, pressure rating and
service type
• Number of turns to open/close valve
• No instrumentation until all rigged up
®Copyright Expro 2014 WELL FLOW MANAGEMENT
When should you check the adjustable choke?
Global Training Course
• Before starting operation
• When able after having any problem with the
adjustable choke.
• After flowing any solid through choke
• During shut-ins in preparation for the next flow
®Copyright Expro 2014 WELL FLOW MANAGEMENT
What to look out forGlobal Training Course
• Wear on cone
• Pitting and damage to seat and
threads
• Erosion on the internals
®Copyright Expro 2014 WELL FLOW MANAGEMENT
Trouble shootingGlobal Training Course
• Ucp is rising and Dcp is falling
• Ucp is dropping and Dcp is rising
• Both Ucp and Dcp are rising
• Both Ucp and Dcp are falling