<p>A method of conducting a seismic survey of an area including a region of high seismic velocity regimes in a shallow overburden. According to the method, a zone is identified in which the boundary of the high seismic velocity region has a substantially constant critical angle and a course is plotted through the identified zone. A zone based directional seismic source is applied sequentially, with a directivity angle equal to or close to the measured critical angle. The response is detected using receivers.</p>
申请公布号
WO2007091041(A1)
申请公布日期
2007.08.16
申请号
WO2007GB00399
申请日期
2007.02.06
申请人
STATOIL ASA;REES, DAVID, CHRISTOPHER;HOGSTAD, KAI;FOTLAND, BENTE;GEREA, CONSTANTIN