Abstract: A method and system includes acquiring a seismic dataset while fluids are injected into the subsurface with seismic data recorded at multiple sensor locations. Seismic travel times are computed between sensors and subsurface locations using a velocity model. Travel times and travel time delays between pairs of sensors may be used as input to determine a similarity coefficient associated with subsurface positions. The similarity coefficients are determined using cross correlation, semblance calculations or eigenstructure decomposition. The coefficient values are related to the acoustic response at each subsurface position and may be summed together for each position for comparison with other subsurface positions to determine the position of a fluid front moving through the subsurface. The values may be displayed to illustrate the position of fluids in the subsurface and displayed to show the time variance of the fluid position.
Type:
Grant
Filed:
July 7, 2010
Date of Patent:
November 19, 2019
Assignee:
Sigma Cubed Inc.
Inventors:
Brian Fuller, John Marcus Sterling, Les G. Engelbrecht
Abstract: The disclosure teaches an interactive 3 dimensional microseismic event color visual display method comprising the steps of displaying an interactive 3D visual image of 3 dimensional data of microseismic event data occurring from geologic stimulation and manipulating the visual display by changing a blend mode of microseismic event data among alpha blending, additive blending, and opacity by factors comprising color, size, event location, and translucency wherein such factors correlate to amplitude, location, depth, probability, direction, time, distance from wellbore and combinations thereof.
Type:
Application
Filed:
May 10, 2015
Publication date:
May 5, 2016
Applicant:
SIGMA Cubed Inc.
Inventors:
Sean Spicer, Marc Hildebrand, Chris Deeb
Abstract: A method and system includes determining a subsurface fluid seismic attribute comprising recording a signal at a wellhead related to pumping fracture stimulation fluid to obtain a pressure pulse pump signal. A deconvolution operator is determined from the obtained pressure pulse pump signal. Seismic data are acquired from a plurality of sensors. Travel time differences are computed for the seismic data between the plurality of sensor locations and the subsurface position. Seismic data are deconvolved with the deconvolution operator to obtain a plurality of deconvolution coefficients associated with the subsurface position. The computed travel time differences are used to sum the plurality of deconvolution coefficients associated with the subsurface position to obtain a subsurface fluid seismic attribute at the subsurface position.
Type:
Grant
Filed:
June 10, 2011
Date of Patent:
April 12, 2016
Assignee:
Sigma Cubed, Inc.
Inventors:
Brian Fuller, John Marcus Sterling, Les G. Engelbrecht
Abstract: The disclosure teaches an interactive 3 dimensional microseismic event color visual display method comprising the steps of displaying an interactive 3D visual image of 3 dimensional data of microseismic event data occurring from geologic stimulation and manipulating the visual display by changing a blend mode of microseismic event data among alpha blending, additive blending, and opacity by factors comprising color, size, event location, and translucency wherein such factors correlate to amplitude, location, depth, probability, direction, time, distance from wellbore and combinations thereof.
Type:
Application
Filed:
March 30, 2015
Publication date:
December 24, 2015
Applicant:
SIGMA Cubed Inc.
Inventors:
Sean Spicer, Marc Hildebrand, Chris Deeb