Title:
SEISMIC ROCK PROPERTY PREDICTION IN FORWARD TIME BASED ON 4D SEISMIC ANALYSIS
Document Type and Number:
WIPO Patent Application WO/2019/139578
Kind Code:
A1
Abstract:
System and methods for predicting time-dependent rock properties are provided. Seismic data for a subsurface formation is acquired over a plurality of time intervals. A value of at least one rock property of the subsurface formation is calculated for each of the plurality of time intervals, based on the corresponding seismic data acquired for that time interval. At least one of a trend or a spatio-temporal relationship in the seismic data is determined based on the value of the at least one rock property calculated for each time interval. A value of the at least one rock property is estimated for a future time interval, based on the determination. The estimated value of the at least one rock property is used to select a location for a wellbore to be drilled within the subsurface formation. The wellbore is then drilled at the selected location.
Inventors:
RAMSAY TRAVIS ST GEORGE (US)
LOMASK JESSE M (US)
LOMASK JESSE M (US)
Application Number:
PCT/US2018/013187
Publication Date:
July 18, 2019
Filing Date:
January 10, 2018
Export Citation:
Assignee:
LANDMARK GRAPHICS CORP (US)
International Classes:
G01V1/52; E21B47/00; G01V1/38
Domestic Patent References:
| WO2017202637A1 | 2017-11-30 | |||
| WO2017105885A1 | 2017-06-22 |
Foreign References:
| US5737219A | 1998-04-07 | |||
| US20110188346A1 | 2011-08-04 | |||
| US20060219402A1 | 2006-10-05 |
Attorney, Agent or Firm:
RAJ, Vinu et al. (US)
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