Deepwater Field Development - Flow Assurance - Dynamic ...

More documents

Recommendations

Info

Black Oil System: Cooldown • Unplanned shutdown Procedure • Determine minimum cooldown times • “No-Touch Time” • ~2-4 hours / no action taken subsea • “Light Touch Time” • ~2-4 hours / treat critical components • Time is a function of chemical injection philosophy / number of wells • “Preservation Time” • Time required to depressurize or displace flowlines with non-hydrate forming fluid Time=0 Time=4 Time=8 “No-Touch” “Light Touch” “Preservation”
Black Oil System: Cooldown • Insulation selection • Cooldown time determined by: • U-Value • Thermal mass (ρ, Cp) • Measure of heat storage • Line size impacts • Bigger = More Thermal Mass • Gas / liquid interface typically controlling point • Gas = low thermal mass • Highest pressure • Coldest temperature Temperature (F) 150 Pipe-in-Pipe (0.20 BTU/hr-ft²-F) 140 Wet Insulation (0.75 BTU/hr-ft²-F) 130 Flexible Pipe (1.00 BTU/hr-ft²-F) 120 110 100 90 80 70 60 HYDRATE FORMATION (PURE WATER) 50 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 Time (hours)
Page 1 and 2: DP Conference MTS Symposium Flow As
Page 3 and 4: Flow Assurance Overview
Page 5 and 6: Key Flow Assurance Issues •Wax (P
Page 7 and 8: Key Flow Assurance Issues Example W
Page 9 and 10: Key Flow Assurance Issues •Wax De
Page 11 and 12: Key Flow Assurance Issues •Hydrat
Page 13 and 14: Key Flow Assurance Issues •Hydrat
Page 15 and 16: Key Flow Assurance Issues •Sluggi
Page 17 and 18: Key Flow Assurance Issues •Other
Page 19 and 20: Deepwater: Temperature Losses • P
Page 21 and 22: Deepwater: Temperature Losses Flowl
Page 23 and 24: Transient Temperature Loss 110 100
Page 25 and 26: Deepwater: Pressure Losses Flowline
Page 27 and 28: Dry Tree: Conduction / Convection /
Page 29 and 30: Dry Tree: Concentric vs. Non-Concen
Page 31 and 32: Design for Expansion • Transient
Page 33 and 34: Emerging Technologies • Artificia
Page 35 and 36: Design Considerations: Black Oil an
Page 37 and 38: Black Oil System: Transient Design
Page 39 and 40: Black Oil System: Steady State Hydr
Page 41 and 42: Black Oil System: Slugging • Slug
Page 43 and 44: Black Oil System: Steady State Ther
Page 45 and 46: Black Oil System: Steady State Ther
Page 47 and 48: Black Oil Systems: Cooldown Design
Page 49: Black Oil System: Cooldown • Plan
Page 53 and 54: Black Oil System: Cooldown 6000 550
Page 55 and 56: Black Oil System: Cooldown 60 WELLH
Page 57 and 58: Black Oil Systems: Depressurization
Page 59 and 60: Depressurization:Subsea Tieback 450
Page 61 and 62: Black Oil System: Depressurization
Page 63 and 64: • During “Prevention” time, d
Page 65 and 66: Black Oil System: Displacement Hydr
Page 67 and 68: Black Oil System: Displacement Hydr
Page 69 and 70: Black Oil Systems: Restart Design C
Page 71 and 72: Black Oil System: Cold Restart 0.60
Page 73 and 74: Black Oil System: Cold Restart •
Page 75 and 76: Black Oil System: Cold Restart
Page 77 and 78: Cold Restart: Case Study 15 Mile Ti
Page 79 and 80: • Is there sufficient hydrate inh

Deepwater Field Development - Flow Assurance - Dynamic ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?