Siemens Subsea. Aravinda Perera, Edson Federighi 2nd May 2017

Transcription

1 Siemens Subsea Aravinda Perera, Edson Federighi 2nd May

2 Subsea future is electrical Page 2

3 Agenda Introduction to Siemens Subsea Technology Subsea Power Grid Siemens Qualification Process Next Steps and Deployment Example Conclusion and Q&A Page 3

4 Part I Introduction to Siemens Subsea Technology Subsea Power Grid Siemens Qualification Process Next Steps and Deployment Example Concluding Remarks Page 4

5 Why Subsea Power Grid? Enable exploration of remote fields Longer reach & distances Deepwater applications Rough weather - no longer an operational risk Less equipment installed on the topside platforms Space and weight restrictions on topside Present offshore hubs to cover larger areas Distributed oilfields requires more subsea processing Multiple subsea processing units at one location Page 5

6 Increased oil recovery largest asset for the operators Chevron: 1% increased recovery in GoM à 3 billion EUR Statoil: 1% increased recovery on NCS à 40 billion EUR Courtesy of Statoil Page 6

7 Subsea Power Grid Where are the markets Page 7

8 Application Subsea Processing A suite of tools Separation Reduced volumeà lower resistance in transport Boosting Reduced inflow pressure à more volume produced Subsea Well(s) Subsea Separation Subsea Boosting ESP Subsea ESP Subsea Water Injection Step-out (km) Water Injection Host (Tieback) Reduced inflow pressureà more volume produced Increased driving pressure in reservoir à increased flow from well Courtesy of Statoil Page 8

9 Field Development Technologies Available Subsea Power Consumers Electrical Pipeline heating Pumping Subsea Power Grid Separation Compression Water Injection Subsea Production System Page 9

10 Siemens Subsea Portfolio Mapping Sensors Pipe Line Heating Systems Connectors Flow Meter Connector Service (LCM): Commissioning, Installation Supervision, Spare Parts Sensors Subsea Power, Control & CommunicationSystems (VSD, Transformer, Switchgear & Control systems) UTAs/SDU s Connectors Jumpers (Distribution) Cobra Head (Distribution) Page 10

11 Part II Introduction to Siemens Subsea Technology Subsea Power Grid Siemens Qualification Process Next Steps and Deployment Example Concluding Remarks Page 11

12 The Siemens Subsea Power Grid Key features of main building blocks Power Grid Scalable Designed and qualified for 3,000 meters water depth Oil-filled Pressurized Cooling by natural convection No differential pressure on penetrations/connectors Condition monitoring Universal and redundant control system Subsea Transformer Subsea Switchgear Subsea VSD Large power range MVA High efficiency Environmentally-friendly 38 kv, 500 A feeders Integrated auxiliary supply SIPROTEC protection system 6 MVA, 6,6 kv, 525 A Multi cell topology Built-in redundancy Advanced cell bypass Page 12

13 Subsea Power Grid - plug & play Page 13

14 Variable Speed Drive A1 Example includes 15 Cells B1 C1 Three Phases (Phase A, B, C) with 5 Cells in Series A2 B2 C2 A3 B3 C3 Input from transformer Secondary Power output of cell A4 B4 C4 A5 B5 C5 M Page 14

15 VSD / SWGR Page 15

16 Subsea Switchgear Electrical Relay Power Unit Protection and fault handling Monitoring of consumer (over current, ground fault etc.) Redundancy Connectivity Standard interfaces Communication to various subsea consumers and to topside Page 16

17 Integration of control & communication Control & communication Protection Condition monitoring Redundancy EPCU A Topside Control system EPCU B Top level control redundancy Subsea network redundancy Control resource redundancy Transf. RTU A Transf. RTU B SSU RTU A SSU RTU B VSD RTU A VSD RTU B Protective devices A Protective devices B Transformer Switchgear unit VSD Page 17

18 Part III Introduction to Siemens Subsea Technology Subsea Power Grid Siemens Qualification Process Next Steps and Deployment Example Concluding Remarks Page 18

19 Qualification Program Main Goal Provide a fit for purpose technology Identify, define and perform tests to assure the products developed will meet the aplication requirements Page 19

20 Qualification Program Key challenges for subsea power distribution Cost and time to repair è Reliability Lack of acknowledged standards Ambient conditions Water and high pressure Long life time with lowest intervention Thermal management Page 20

21 Demonstrated reliability through qualification System (in shallow water) System Modules Modules Subassemblies Subassemblies ~ Components Function test dry Function under pressure Page 21 Hyperbaric Function under pressure Material compatibility Long term endurance

22 Part IV Introduction to Siemens Subsea Technology Subsea Power Grid Siemens Qualification Process Next Steps and Deployment Example Concluding Remarks Page 22

23 Subsea Power Grid Development Status in a nutshell Subsea Transformer Qualified Subsea VSD and SWGR tested in air Subsea VSD and SWGR being prepared for shallow water tests Integrated shallow water tests planned to start next Autumn Subsea Power Grid qualified Page 23

24 Field Layout Example Typical Layout includes Connection to host power plant Umbilical cables Pipelines Manifolds Pumps Valves, sensors Electrical consumers Page 24

25 Part V Introduction to Siemens Subsea Technology Subsea Power Grid Siemens Qualification Process Next Steps and Deployment Example Concluding Remarks Page 25

26 Summary Subsea Power Grid Subsea Power Grid Subsea Power Grid Highest power quality Input & output Enables large scale subsea processing Modular philosophy Other develpments ongoing Subsea DEH Control System Technology In cooperation with SAIPEM Pressure compensated Fluid filled Natural cooling Power control and CM Page 26

27 Other Applications of Subsea Power Grid Direct Electrical Heating Siemens SAIPEM Partnership for Subsea Control System Page 27

28 Questions & Answers We are happy to answer your questions! Edson Federighi Subsea Conceptual Group Aravinda Perera Subsea Systems Engineering Page 28