Patent ID: 11892584
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  E  Y | IPC E  G

Claim 11:
12. An apparatus comprising:
a marine electromagnetic source immersed in marine water above a seabed, wherein the marine electromagnetic source is configured to generate electromagnetic waves;
one or more borehole receivers dispersed in one or more borehole locations to measure one or more borehole signal measurements, wherein the one or more borehole signal measurements comprise propagations of the electromagnetic waves received at respective borehole receivers;
one or more marine receivers dispersed in one or more seabed locations to measure one or more seabed signal measurements, wherein the one or more seabed signal measurements comprise reflections of the electromagnetic waves from earth subsurface strata of the seabed received at respective marine receivers; and
a processor configured to calculate a three-dimensional property distribution of a reservoir of interest by:
using the one or more seabed signal measurements to determine electromagnetic parameters of the earth subsurface strata intervening between the seabed and the reservoir of interest via a first inversion operation;
using the one or more borehole signal measurements and the electromagnetic parameters of the earth subsurface strata to generate inverted one or more borehole signal measurements via a second inversion operation; and
determining the three-dimensional property distribution of the reservoir of interest based on the inverted one or more borehole signal measurements.