| 摘要 |
<p>First seismic data is collected from a plurality of points on a reflecting feature in the formation by emitting a first seismic signal from a first array of source locations in a deviated portion of a first borehole drilled through a formation and receiving first reflections of the first seismic signal from the reflecting feature by a first array of receiver locations in a deviated portion of a second borehole drilled through the formation. Second seismic data is collected from the plurality of points by emitting a second seismic signal from a second array of source locations in the first borehole deviated portion, different from the first array of source locations, and receiving second reflections of the second seismic signal from the plurality of points on the reflecting feature by a second array of receiver locations in the deviated portion of the second borehole.</p> |
