US 11,754,746 B2
Systems and methods for creating 4D guided history matched models
Ali M. Al-Shahri, Doha (SA); Raheei R. Baig, Dhahran (SA); and Hasan A. Nooruddin, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Nov. 23, 2020, as Appl. No. 17/101,577.
Claims priority of provisional application 62/979,675, filed on Feb. 21, 2020.
Prior Publication US 2021/0263185 A1, Aug. 26, 2021
Int. Cl. G01V 99/00 (2009.01); G01V 9/02 (2006.01); G06F 30/20 (2020.01); G06F 113/08 (2020.01); G06F 111/10 (2020.01)
CPC G01V 99/005 (2013.01) [G01V 9/02 (2013.01); G06F 30/20 (2020.01); G06F 2111/10 (2020.01); G06F 2113/08 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A petroleum exploration environment comprising a plurality of reservoir wells, a network of saturation sensors, and a model processing hub, wherein:
individual saturation sensors of the network of saturation sensors are positioned at different ones of the plurality of reservoir wells in the petroleum exploration environment;
the individual saturation sensors are operable to generate 4D saturation data, S4D, at each of the plurality of reservoir wells in real time;
the model processing hub is in communication with the network of saturation sensors and comprises a reservoir simulation model and a processor;
the reservoir simulation model comprises simulated saturation data, SSIM, and initial permeability distribution data, kcurrent; and
the processor of the model processing hub is operable to
derive the 4D saturation data, S4D, from individual saturation sensors of the network of saturation sensors,
build a 4D saturation model comprising the 4D saturation data, S4D, derived from the network of saturation sensors,
compare the simulated saturation data, SSIM, of the reservoir simulation model and the 4D saturation data, S4D, of the 4D saturation model to generate a saturation Δ,
calculate updated permeability distribution data, knew, based on the saturation Δ using a permeability distribution transform function, the permeability distribution transformation function comprises a formation porosity coefficient, ϕ, a magnifying factor, C, a shaping factor, B,

OG Complex Work Unit Math
and minimizes a subsurface saturation difference between the reservoir simulation model and the 4D saturation model, and
update the initial permeability distribution data, kcurrent, of the reservoir simulation model with the updated permeability distribution data, knew, to create a 4D guided history matched model of the petroleum exploration environment.