Method and apparatus for controlling and optimizing seismic data acquisition

• US 6,590,831 B1
• Filed: 11/04/1999
• Issued: 07/08/2003
• Est. Priority Date: 12/30/1997
• Status: Expired due to Term

• Current Assignee: WesternGeco LLC (Schlumberger NV)
• Original Assignee: WesternGeco LLC (Schlumberger NV)
• Inventors: Bennett, Colin M., Zajac, Mark, Ambs, Loran D.
• Primary Examiner(s): Lefkowitz, Edward
• Assistant Examiner(s): Taylor, Victor J.
• Application Number:
  US09/433,666
• Time in Patent Office: 1,342 Days
• Field of Search: 702/14, 702/6, 367/16
• US Class Current: 367/16
• CPC Class Codes: B63B 21/66 Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables paravanes for dragging fishing nets A01K73/02; salvaging underwater vessels or objects B63C7/00; towed underwater vessels B63G8/42
• CPC Class Codes: G01V 1/38 specially adapted for water-covered areas G01V1/28 takes precedence
• CPC Class Codes: G01V 1/3808 Seismic data acquisition, e.g. survey design

Abstract

A system and method for coordinating the operation of multiple manned, remotely operated or autonomous marine vessels engaged in marine seismic data acquisition to direct cooperating vessels from one point to the next while minimizing deviations in the desired spatial configuration of assets, risk to vessels and seismic assets, and personnel and to obtain optimal midpoint coverage by evaluating inputs from subsystems providing positioning information for cooperating vessels, prospect coverage, vessel capabilities, environmental information, and navigation hazards.

Claims

1. A system for coordinating the operation of one or more marine vessels engaged in seismic data acquisition comprising:

at least one vessel for performing one or more of;

deploying a source of acoustic energy for generating acoustic waves;

deploying a receiver for receiving seismic data; and

a processor for monitoring a parameter of interest of the received seismic data and generating control commands for controlling the at least one vessel in response thereto thereby coordinating the operation of at least one vessel to maneuver for optimum a subsurface midpoint coverage .

2. The system of claim 1, wherein the at least one vessel further comprises:

A position sensor for determining a position of at least one or more of;

at least one vessel

a source of acoustic energy

a seismic receiver; and

a vessel maneuvering system comprising;

a receiver for receipt of vessel control commands;

a processor interpreting vessel control commands; and

an output for executing vessel control commands.

3. The system of claim 2 further comprising:

An environmental sensor for monitoring and transmitting environmental data to the processor for adjusting vessel control commands.

4. The system of claim 2, wherein the processor receives position information and sends a vessel control command to the vessel maneuvering system to minimize deviations in the desired spatial configuration of assets.

5. The system of claim 3, wherein the processor receives environmental data and further comprises a function that determines a best geometric configuration for seismic sources, receivers and tow vessels sends a vessel control command to the vessel maneuvering system.

6. The system of claim 2 further comprising:

A processor function for determining a predicted path and sending a vessel control command to the vessel maneuvering system.

7. The system of claim 6, wherein the processor receives legacy data to determine a best estimation of the behavior of streamer cables and sends a vessel control command to the vessel maneuvering system.

8. The system of claim 5, wherein the environmental data comprises at least one of:

wind speed, wind direction, wave height, wave direction, wave period, tidal stream, ocean current, and water depth.

9. The system of claim 8 further comprising:

a coverage optimization system wherein the coverage optimization system receives position information, and sends a path prediction to the Vehicle Management System.

10. The system of claim 9 further comprising:

a binning system we in the binning system provides seismic coverage data to the coverage optimization system.

11. The system of claim 9, wherein the coverage optimization system receives operator data, position data and environmental data.

12. The system of claim 11, wherein the position sensor monitors at least one of:

seismic source position, seismic receiver position, streamer head buoy position, streamer tail buoy position, seismic source depth, seismic receiver depth, vessel position, vessel ground speed, water speed, vessel track, and vessel heading.

13. The system of claim 12 further comprising an operator console for operator data input wherein the operator data comprises at least one of:

prospect coverage area definition, required midpoint coverage, operational constraints, and operator control.

14. The system of claim 10, wherein the binning system provides a current seismic midpoint coverage assessment to the coverage optimization system.

15. The system of claim 9, wherein the vessel control command comprises optimum locations for at least one of:

the seismic source, the receiver, the vessel, streamers, and tail buoys.

16. The system of claim 14, wherein the vessel control command comprises optimum locations for at least one of:

the seismic source, the receiver, and the vessel.

17. The system of claim 9, wherein the coverage optimization system generates a pre-plan and line selection based upon the available source and receiver assets, environmental data, past performance and operational constraints.

18. The system of claim 9, wherein the coverage optimization system generates real time optimum source and receiver locations using computed source, receiver and towing vessel coordinate, in-water asset dynamics, past midpoint coverage, midpoint coverage required, operational constraints and environmental data.

19. The system of claim 14, wherein the coverage optimization system generates a pre-plan and line selection based upon the available source and receiver assets, environmental data, past performance and operational constraints.

20. The system of claim 14, wherein the coverage optimization system generates real time optimum source and receiver locations using computed source, receiver and towing vessel coordinate, in-water asset dynamics, past midpoint coverage, midpoint coverage required, operational constraints and environmental data.

21. A method for coordinating the operation of one or more marine vessels engaged in seismic data acquisition comprising the steps of:

providing at least one vessel for performing one or more of;

deploying a source of acoustic energy for generating acoustic waves;

deploying a receiver for receiving seismic data; and

providing a processor for monitoring a parameter of interest of the received seismic data and generating control commands for controlling the at least one vessel in response thereto to maneuver for optimum subsurface midpoint coverage.

22. The method of claim 21 further comprising the steps of:

determining a position of at least one or more of;

at least one vessel

the source of acoustic energy

the seismic receivers, and

receiving a control command in a vessel maneuvering system, the vessel maneuvering system comprising;

a receiver for receipt of vessel control commands

a processor interpreting vessel control commands

an output for executing vessel control commands.

23. The method of claim 22 further comprising the steps of receiving and using the environmental data in the processor to adjust vessel control commands.

24. The method of claim 22 further comprising the step of:

sending a vessel control command to the vessel maneuvering system to minimize deviations in the desired spatial configuration of assets.

25. The method of claim 23 further comprising the steps of:

determining a best geometric configuration for seismic sources, receivers and tow vessels sending a vessel control command to the vessel maneuvering system.

26. The method of claim 25 further comprising the step of:

determining a predicted path and sending a vessel control command to the vessel maneuvering system.

27. The method of claim 26 further comprising the step of:

receiving legacy data to compute a best estimation of the behavior of streamer cables and sending a vessel control command to the vessel maneuvering system.

28. The method of claim 25 wherein the environmental data comprises at least one of:

wind speed, wind direction, wave height, wave direction, wave period,

tidal stream, ocean current, and water depth.

29. The method of claim 28 further comprising the steps of:

receiving position information in a coverage optimization system; and

sending optimum path predictions to a Vehicle Management System.

30. The method of claim 29 further comprising the step of:

providing seismic coverage data to the coverage optimization system from a binning system.

31. The method of claim 29 further comprising the seep of:

receiving operator position data, and environmental data in the coverage optimization system.

32. The method of claim 31, wherein the position sensor monitors at least one of:

seismic source position, seismic receive position, streamer head buoy position, streamer tail buoy position, seismic source depth, seismic receiver depth, vessel position, vessel ground speed, water speed, vessel track, and vessel heading.

33. The method of claim 32 further comprising the step of:

receiving operator data in the coverage optimization system wherein the operator data comprises at least one of;

prospect coverage area definition, required midpoint coverage, operational constraints, and operator control.

34. The method of claim 30 further comprising the step of:

providing a seismic midpoint coverage assessment to the coverage optimization system from the binning system.

35. The method of claim 29 further comprising the step of:

optimizing, via the vessel control command, optimum locations for at least one of;

the seismic source, the receiver, and the vessel.

36. The method of claim 34 further comprising the step of:

optimizing via the vessel control command, optimum locations for at least one of;

the seismic source, the receiver, and the vessel.

37. The method of claim 29 further comprising the step of:

generating a pre-plan and line selection based upon the available source and receiver assets, environmental data, past performance and operational constraints.

38. The method of claim 29 further comprising the step of:

generating real-time optimum source and receiver locations using computed source, receiver and towing vessel coordinate, in-water asset dynamics, past midpoint coverage, midpoint coverage required, operational constraints and environmental data.

39. The method of claim 34 further comprising the step of:

generating a pre-plan and line selection based upon the available source and receiver assets, environmental data, past performance and operational constraints.

40. The method of claim 34 further comprising the step of:

generating real-time optimum source and receiver locations using computed source, receiver and towing vessel coordinate, in-water asset dynamics, past midpoint coverage, midpoint coverage required, operational constraints and environmental data.