UNMANNED VEHICLE-BASED SEISMIC SURVEYING

• US 20140362661A1
• Filed: 04/11/2014
• Published: 12/11/2014
• Est. Priority Date: 04/23/2013
• Status: Abandoned Application

• Current Assignee: WesternGeco LLC
• Original Assignee: WesternGeco LLC
• Inventors: MUIJZERT, EVERHARD JOHAN, WELKER, KENNETH E., MOLDOVEANU, NICOLAE, COOPER, IAIN, LIEN, OLAV, PAI, SUDHIR, MENKITI, HENRY
• Application Number:
  US14/251,338
• Publication Number:
  US 20140362661A1
• Time in Patent Office: Days
• US Class Current: 367/15
• CPC Class Codes: B63B 2035/008 remotely controlled
• CPC Class Codes: G01V 1/3808 Seismic data acquisition, e.g. survey design
• CPC Class Codes: G01V 1/3817 Positioning of seismic devices

Abstract

A technique includes a technique includes providing a plurality of acquisition components for performing a survey of a geologic region of interest, where the plurality of acquisition components comprising receivers and at least one source. The technique includes using at least one marine unmanned vehicle to position at least one of the receivers in the survey; and deploying at least at one of the acquisition components in a well or on land.

Claims

1. A method comprising:

providing a plurality of acquisition components for performing a survey of a geologic region of interest, the plurality of acquisition components comprising receivers and at least one source;

using at least one marine unmanned vehicle to position at least one of the receivers in the survey; and

deploying at least at one of the acquisition components in a well or on land.

2. The method of claim 1, wherein the at least one source comprises a land-based source or a marine-based source.

3. The method of claim 1, further comprising conducting operations as part of a survey of the geologic region of interest in a transition zone, the transition zone comprising at least a first region submerged below water and a second region extending above water.

4. The method of claim 3, wherein the at least one source is one source of a plurality of land-based sources disposed on the second region, the method further comprising:

activating the plurality of land-based sources;

using a plurality of receivers disposed on the second region to acquire data representing energy attributable at least in part to the activation of the plurality of land-based sources; and

using the at least one receiver positioned by the at least one unmanned marine vehicle to acquire data representing energy attributable at least in part to the activation of the plurality of land-based sources.

5. The method of claim 3, further comprising:

activating at least one marine-based source in the first region;

using a plurality of receivers disposed on the second region to acquire data representing energy attributable at least in part to the activation of the at least one marine-based source; and

using the at least one receiver positioned by the at least one unmanned marine vehicle to acquire data representing energy attributable at least in part to the activation of the plurality of land-based sources.

6. The method of claim 3, wherein the at least one source comprises one source of a plurality of land-based sources disposed on the second region, the method further comprising:

activating the plurality of land-based sources; and

using the at least one receiver positioned by the at least one unmanned marine vehicle to acquire data representing energy attributable at least in part to the activation of the plurality of land-based sources.

7. The method of claim 3, wherein the first region comprises a relatively shallow water region and a relatively deeper water region, the method further comprising:

using at least one unmanned vehicle in the shallow water region to transport the at least one receiver;

using a surface vessel in the relatively deeper water region, wherein the surface vessel has a draft that is incompatible with a minimum depth of the shallow region; and

using the surface vessel to the at least one source.

8. The method of claim 1, wherein the receivers comprise receivers selected from the set consisting essentially of seismic sensors, gravity sensors, electromagnetic sensors and magneto telluric sensors.

9. A system comprising:

at least one source disposed on land;

at least one sensor;

at least one marine unmanned vehicle connected to the at least one geophysical sensor to acquire data representing energy attributable at least in part to the activation of the at least one source disposed on land.

10. The system of claim 9, wherein the unmanned vehicle comprises a remotely operable vehicle (ROV) or an autonomous vehicle (AUV).

11. The system of claim 9, further comprising:

a streamer adapted to be towed by the at least one unmanned vehicle, at least one sensor of the at least one sensor being disposed on the streamer.

12. The system of claim 9, wherein the at least one unmanned vehicle is adapted to remain within a first marine region to acquire the data in a survey of a geologic structure and the first marine region being associated with a minimum depth, the system further comprising:

a surface vessel having a draft incompatible with the minimum depth of the first marine region, wherein the vessel is adapted to transport a source fired in a second marine region associated with a deeper minimum depth compatible with the draft of the surface vessel.

13. The system of claim 9, further comprising:

at least one additional sensor disposed on land to acquire data representing energy attributable at least in part to the at least one source disposed on land.

14. A method comprising:

acquiring first data by at least one geophysical receiver inside a well, the first data representing energy attributable at least in part to at least one source; and

acquiring second data by at least one marine unmanned vehicle-based receiver outside of the well, the second data representing energy attributable at least in part to the activation of the at least one source.

15. The method of claim 14, wherein the at least one source comprises at least one active source or at least one passive source.

16. The method of claim 14, wherein the at last one source comprises at least one active source, the method further comprising:

moving the at least one active source; and

moving the at least one unmanned vehicle-based receiver in a coordinated manner with respect to the movement of the at least one active source.

17. The method of claim 16, further comprising performing a vertical incident vertical profile (VSP) survey or a walkaway VSP survey using the moving of the at least one active source and the moving of the at least one unmanned vehicle-based receiver.

18. The method of claim 17, wherein the at least one source comprises a plurality of active sources, and the at least one unmanned vehicle-based receiver comprises a plurality of unmanned vehicle-based receivers, the method further comprising:

performing a two-dimensional survey generally along a line; and

moving the plurality of active sources and the plurality of unmanned vehicle-based receivers along the line.

19. The method of claim 18, wherein moving the plurality of active sources and the plurality of unmanned vehicle-based receivers along the line comprises moving the plurality of active sources in a first direction along the line and moving the unmanned vehicle-based receivers in a second direction along the line, the second direction being opposed to the first direction.

20. The method of claim 17, wherein the at least one source comprises a plurality of active sources, and the at least one unmanned vehicle-based receiver comprises a plurality of unmanned vehicle-based receivers, the method further comprising:

performing a three-dimensional survey along different azimuthal directions; and

moving the plurality of active sources and the plurality of unmanned vehicle-based receivers along the azimuthal directions.

21. The method of claim 20, wherein moving the plurality of sources and the plurality of unmanned vehicle-based receivers in the azimuthal directions comprises:

designating a plurality of azimuthal lines;

selecting a pair of opposing azimuthal lines from the plurality of azimuthal lines, moving the plurality of sources along one of the selected azimuthal lines of the pair and moving the plurality of unmanned vehicle-based receivers along the other selected azimuthal line of the pair; and

selecting another pair of opposing azimuthal lines from the plurality of azimuthal lines and repeating the moving of the sources and receivers.

22. The method of claim 20, wherein moving the plurality of sources and the plurality of unmanned vehicle-based receivers in the azimuthal directions comprises:

designating a plurality of azimuthal sectors;

selecting an opposing pair of azimuthal sectors from the plurality of azimuthal sectors, moving the plurality of sources along one of the sectors of the selected pair and moving the plurality of unmanned vehicle-based receivers along the other sector of the selected pair; and

selecting another opposing pair of azimuthal sectors from the plurality of azimuthal sectors and repeating the moving of the sources and receivers.

23. The method of claim 14, further comprising:

moving the at least one receiver inside the well; and

moving the at least one of the unmanned vehicle-based receiver in a coordinated manner with respect to the movement of the at least one receiver inside the well.

24. A system comprising:

at least one seismic source;

at least one receiver disposed in a well, the at least one receiver adapted to acquire first data representing energy attributable at least in part to the activation of the at least one seismic source; and

at least one unmanned marine vehicle-based receiver outside of the well to acquire second data representing energy attributable at least in part to the activation of the at least one seismic source.

25. A method comprising:

activating at least one seismic source, the at least one seismic source being disposed in a well; and

acquiring data outside of the well by at least one unmanned marine vehicle-based receiver, the data acquired by the at least one unmanned marine vehicle-based receiver being attributable at least in part to the activation of the at least one seismic source.