Title:
REAL-TIME REFLECTION POINT DENSITY MAPPING DURING THREE-DIMENSIONAL (3D) VERTICAL SEISMIC PROFILE (VSP) SURVEYS
Document Type and Number:
WIPO Patent Application WO/2010/113013
Kind Code:
A3
Abstract:
Methods and apparatuses are disclosed for generating three dimensional (3D) vertical seismic profiles (VSPs) in a more time efficient manner. The methods and apparatuses enable faster and more efficient VSP surveys than previous techniques. In some embodiments, real- time updating of the velocity model and real-time reflection point density calculations are carried out, which are used to determine the location of the next seismic source firing. In the event the data of a particular bin has an insufficient fold, common image points (CIPs) or reflection point density, additional source firings may be carried out prior to moving the source. Further, in the event the data of a particular bin is excessive in terms of the fold, CIPs or reflection point density before the planned source firings for the bin are completed, remaining source firings for that bin may be skipped to save time and improve the efficiency of the data collection. In some embodiments, GPS positioning technology is used to place the seismic source for the next seismic source firing. In some embodiments, the seismic source firing is synchronized, based on a universal time (UTC) standard.
Inventors:
TULETT JOHN RICHARD (JP)
ARMSTRONG PHILIP NEVILLE (JP)
MENKITI HENRI (GB)
ARMSTRONG PHILIP NEVILLE (JP)
MENKITI HENRI (GB)
Application Number:
PCT/IB2010/000713
Publication Date:
November 03, 2011
Filing Date:
March 30, 2010
Export Citation:
Assignee:
SCHLUMBERGER TECHNOLOGY BV (NL)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER CA LTD (CA)
SCHLUMBERGER HOLDINGS
PRAD RES & DEV LTD
TULETT JOHN RICHARD (JP)
ARMSTRONG PHILIP NEVILLE (JP)
MENKITI HENRI (GB)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER CA LTD (CA)
SCHLUMBERGER HOLDINGS
PRAD RES & DEV LTD
TULETT JOHN RICHARD (JP)
ARMSTRONG PHILIP NEVILLE (JP)
MENKITI HENRI (GB)
International Classes:
G01V1/42
Domestic Patent References:
| WO2001059483A1 | 2001-08-16 |
Foreign References:
| US20050060097A1 | 2005-03-17 |
Other References:
ZHOU H: "FIRST-BREAK VERTICAL SEISMIC PROFILING TOMOGRAPHY FOR VINTON SALT DOME", GEOPHYSICS, SOCIETY OF EXPLORATION GEOPHYSICISTS, US, vol. 71, no. 3, 1 May 2006 (2006-05-01), pages U29 - U36, XP001243684, ISSN: 0016-8033, DOI: 10.1190/1.2192970
NICK MOLDOVEANU ET AL: "Onboard 3D & 4D subsurface target illumination: A tool to optimize streamer marine acquisition", EXPANDED ABSTRACTS WITH BIOGRAPHIES, vol. 22, 1 January 2003 (2003-01-01), pages 4 - 7, XP055004768, ISSN: 1052-3812, DOI: 10.1190/1.1817962
M. BRINK ET AL: "Infill decisions using simulated migration amplitudes", EXPANDED ABSTRACTS WITH BIOGRAPHIES, vol. 23, 1 January 2004 (2004-01-01), pages 57 - 60, XP055004769, ISSN: 1052-3812, DOI: 10.1190/1.1842412
HOFFMANN J, ET AL: "The value of subsurface coverage modeling for seismic acquisition analysis", EXPANDED ABSTRACTS WITH BIOGRAPHIES, vol. 21, 1 January 2002 (2002-01-01), pages 37 - 40, XP055004770, ISSN: 1052-3812, DOI: 10.1190/1.1817258
BEAR G ET AL: "The construction of subsurface illumination and amplitude maps via ray tracing", THE LEADING EDGE, SOCIETY OF EXPLORATION GEOPHYSICISTS, US, 1 July 2000 (2000-07-01), pages 726,728, XP002976126, ISSN: 1070-485X, DOI: 10.1190/1.1438700
NICK MOLDOVEANU ET AL: "Onboard 3D & 4D subsurface target illumination: A tool to optimize streamer marine acquisition", EXPANDED ABSTRACTS WITH BIOGRAPHIES, vol. 22, 1 January 2003 (2003-01-01), pages 4 - 7, XP055004768, ISSN: 1052-3812, DOI: 10.1190/1.1817962
M. BRINK ET AL: "Infill decisions using simulated migration amplitudes", EXPANDED ABSTRACTS WITH BIOGRAPHIES, vol. 23, 1 January 2004 (2004-01-01), pages 57 - 60, XP055004769, ISSN: 1052-3812, DOI: 10.1190/1.1842412
HOFFMANN J, ET AL: "The value of subsurface coverage modeling for seismic acquisition analysis", EXPANDED ABSTRACTS WITH BIOGRAPHIES, vol. 21, 1 January 2002 (2002-01-01), pages 37 - 40, XP055004770, ISSN: 1052-3812, DOI: 10.1190/1.1817258
BEAR G ET AL: "The construction of subsurface illumination and amplitude maps via ray tracing", THE LEADING EDGE, SOCIETY OF EXPLORATION GEOPHYSICISTS, US, 1 July 2000 (2000-07-01), pages 726,728, XP002976126, ISSN: 1070-485X, DOI: 10.1190/1.1438700
Attorney, Agent or Firm:
MATSUDA, Kiichiro (2-2-1 FuchinobeSagamihara-shi, Kanagawa-ken, JP)
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