US 12,436,310 B2
Reservoir properties derived using ultra-deep resistivity inversion data
Paolo Primiero, Stavanger (NO)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jul. 15, 2022, as Appl. No. 17/866,340.
Prior Publication US 2024/0019599 A1, Jan. 18, 2024
Int. Cl. G01V 3/20 (2006.01); E21B 7/04 (2006.01); E21B 44/02 (2006.01); E21B 49/00 (2006.01)
CPC G01V 3/20 (2013.01) [E21B 7/04 (2013.01); E21B 44/02 (2013.01); E21B 49/00 (2013.01); E21B 2200/20 (2020.05)] 24 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving input parameters, a set of resistivity data, and sensor measurements of a subterranean formation at a location, downhole a borehole, wherein a seismic while drilling operation is in progress in the borehole, at least one measurement in the set of resistivity data is collected from an ultra-deep resistivity tool, and at least one sensor measurement in the sensor measurements is from a vertical seismic profile (VSP);
determining a prior rock physics forward model (RPFM), and identifying constitutive equations to be used with the RPFM;
applying an inversion algorithm, through at least two iterations, using a resistivity processor, to the set of resistivity data and the sensor measurements, using the RPFM and the input parameters, and generating an inversion output from an output of the inversion algorithm, wherein at least two different inversion algorithms are applied through the at least two iterations;
generating results using the inversion output, wherein the results include one or more of a porosity parameter, a water saturation parameter, or a hydrocarbon saturation parameter; and
directing a geo-steering system of a drilling assembly to alter a drilling path through interpretation of the porosity parameter, the water saturation parameter, or the hydrocarbon saturation parameter.