Ormen Lange Utbyggingen - NTNU

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Preface This project work has been done in connection with my in-depth study of petroleum production at NTNU, Trondheim. The work was carried out from September to December 2004. I would like to thank Professor Jón Steinar Gudmundsson, of the Department of Petroleum Engineering and Applied Geophysics at NTNU, and Jon Rønnevig of Markland AS, who has been very helpful and cooperative. Deposits Detection Using Pressure Pulse Technology Ormen Lange Pipelines Case Study Using Process Simulation Tools ii
Abstract The subject of this work is a presentation of deposits detection on the Ormen Lange multiphase pipelines, using pressure pulse technology. The work has been conducted with the use of the process simulation tool, HYSYS. Special attention is paid to comparison of full and highly reduced multiphase production on the Ormen Lange field. A simulation process that is similar to the Ormen Lange field has been accounted for by the use of real data. The results from simulation without deposits have been checked by analytical methods. Deposits of 10, 50 and 100 millimetres thick, 100 and 1000 metres long have subject to investigation. As a quality check, simulations have also been performed by expert Jon Rønnevig at Markland AS. Pressure pulse is introduced as a deposit detection and leakage detection method. Discussion of the results obtained have been performed with emphasize on the pressure pulse technology. Deposits Detection Using Pressure Pulse Technology Ormen Lange Pipelines Case Study Using Process Simulation Tools iii
Page 1: Faculty of Engineering Science and
Page 5 and 6: Table list Table 1 Overview of pipe
Page 7 and 8: 2 Ormen Lange The Ormen Lange field
Page 9 and 10: The 6’’ MEG pipelines will be i
Page 11 and 12: As the flow is brought to rest; lin
Page 13 and 14: L max = 2⋅ a⋅ di f ⋅u Equatio
Page 15 and 16: 4 Simulation program HYSYS The proc
Page 17 and 18: 5 Simulation of production without
Page 19 and 20: The HTFS Homogenous Flow [16] has b
Page 21 and 22: pressure pulse can travel at least
Page 23 and 24: 6.5 Conclusion The use of pressure
Page 25 and 26: [13] Reinertsen, Temadag Utmatting
Page 27 and 28: Table 2 Pipelines corrosion coating
Page 29 and 30: Table 5 Flow regime in the producti
Page 31 and 32: 9 Figures Figure 1 Graphical view o
Page 33 and 34: D change in pressure C time Figure
Page 35 and 36: Figure 9 Shows the pressure drop in
Page 37 and 38: Figure 13 Water content of hydrocar
Page 39 and 40: 510 Sound Velocity (m/s) 500 490 48
Page 41 and 42: A. Calculations a. Temperature Calc
Page 43 and 44: c. Pressure pulse Calculations perf
Page 45 and 46: 90 % reduction in flow: 0,90 0,0020
Page 47 and 48: Calculations performed with PPSim T

Ormen Lange Utbyggingen - NTNU

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