US 9,810,803 B2
Method for subsurface mapping using seismic emissions
Jan Meredith Vermilye, Lyons, CO (US); Charles John Sicking, Plano, TX (US); Ross G. Peebles, Houston, TX (US); Laird Berry Thompson, Lake Oswego, OR (US); Amanda Jean Klaus, Boulder, CO (US); and Peter Anderson Geiser, Lyons, CO (US)
Assigned to Seismic Global Ambient, LLC, Missouri City, TX (US)
Filed by Jan Meredith Vermilye, Lyons, CO (US); Charles John Sicking, Plano, TX (US); Ross G. Peebles, Houston, TX (US); Laird Berry Thompson, Lake Oswego, OR (US); Amanda Jean Klaus, Boulder, CO (US); and Peter Anderson Geiser, Lyons, CO (US)
Filed on Jun. 5, 2014, as Appl. No. 14/297,394.
Application 14/297,394 is a continuation in part of application No. 13/831,591, filed on Mar. 15, 2013, granted, now 9,389,326.
Application 13/831,591 is a continuation in part of application No. 13/070,442, filed on Mar. 23, 2011.
Application 13/831,591 is a continuation in part of application No. 14/297,394.
Application 14/297,394 is a continuation in part of application No. 13/831,619, filed on Mar. 15, 2013, granted, now 9,442,205.
Application 13/831,619 is a continuation in part of application No. 13/070,442, filed on Mar. 23, 2011.
Claims priority of provisional application 61/778,358, filed on Mar. 12, 2013.
Prior Publication US 2014/0288840 A1, Sep. 25, 2014
Int. Cl. G01V 1/06 (2006.01); G01V 1/42 (2006.01); G01V 1/28 (2006.01); G01V 1/34 (2006.01)
CPC G01V 1/42 (2013.01) [G01V 1/288 (2013.01); G01V 1/345 (2013.01); G01V 2210/1234 (2013.01); G01V 2210/65 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for determining the reservoir fluid production volume within a selected volume of the Earth's subsurface encompassing a selected path when no induced fracturing is occurring along said selected path, comprising:
detecting seismic signals with seismic sensors arranged proximate the Earth's surface in proximity to said selected path when no induced fracturing is occurring along said selected path, said detected seismic signals representing seismic energy being emitted from said selected volume of the Earth's subsurface, said seismic sensors generating at least one of electrical, magnetic or optical signals;
recording said detected seismic signals in a recording unit;
dividing said selected volume of the Earth's subsurface into a three-dimensional grid of voxels;
processing said recorded seismic signals to determine a first subset of voxels included within said grid of voxels, said first subset of voxels including voxels from which the detected seismic energy originating therefrom exceeds a selected magnitude and that are adjacent said selected path, said determined first subset of voxels identifying potential flow paths for reservoir fluids through said selected volume of the Earth's subsurface to said selected path; and
processing said recorded seismic signals to determine additional voxels included within said grid of voxels that are more distant from the selected path than said first subset of voxels and from which seismic energy originating therefrom exceeds a selected magnitude and that are adjacent to voxels in said determined first subset of voxels or to other determined additional voxels, said determined additional voxels identifying potential flow paths for reservoir fluids through said selected volume of the Earth's subsurface to said selected path; and
generating a map comprising said first subset of voxels and said additional voxels, thereby generating a map of spatially continuous flow paths for reservoir fluids through said selected volume of the Earth's subsurface to said selected path during a time when no induced fracturing is occurring along said selected path, the portion of said selected volume of the Earth's subsurface substantially filled with said spatially continuous flow paths being the reservoir fluid production volume.