Corrective scaling of interpreted fractures based on the microseismic detection range bias correction

A method for generating a fracture model of a reservoir, the method comprising:

• receiving a seismic signal having a magnitude from each seismic event in a plurality of seismic events that are in a plurality of stimulated stages in the reservoir to provide detected seismic event information in each of the stages, the seismic signal being received by an array of seismic receivers;
• selecting a stage in the plurality of stages as a reference stage according to a selection criterion;
• estimating a number of undetected seismic events and a magnitude for each of the undetected seismic events to provide undetected seismic event information for each stage in the plurality of stages, the number of undetected seismic events and corresponding magnitudes for each stage in the plurality of stages being estimated using each of the detected seismic events and corresponding magnitudes for the corresponding stage, wherein the detected seismic event information and the undetected seismic event information provide corrected seismic event information for each stage in the plurality of stages;
• determining a scalar property that is a measure of energy released by the seismic events for each stage in the plurality of stages, the scalar property being determined from the detected seismic event information provided by each received seismic signal for each stage;
• calculating a scaling factor for each stage using the scalar property of the corresponding stage and the scalar property of the reference stage, the scaling factor relating the scalar property of the corresponding stage to the scalar property of the reference stage, wherein the scaling factor comprises a ratio of the scalar property of the corresponding stage to the scalar property of the reference stage;
• applying the scaling factor for each stage to the corrected seismic event information for the corresponding stage to provide scaled seismic event information for each stage in the plurality of stages;
• generating the fracture model with the scaled seismic event information for each stage in the plurality of stages to provide a corrected fracture model;
• and
• calculating a change a stimulated reservoir volume using the corrected fracture model;
• transmitting, using an output interface, a signal comprising the stimulated reservoir volume to a controller;
• and
• controlling at least one of drilling equipment, completion equipment, and hydrocarbon extraction equipment based on the stimulated reservoir volume using the controller;
• wherein the receiving, selecting, estimating, determining, calculating a scaling factor, applying, correcting, and calculating a stimulated reservoir volume are implemented by an algorithm executed by a processor.

A non-transitory computer readable medium comprising computer executable instructions for correcting a fracture model of a reservoir that when executed by a computer causes apparatus to implement a method comprising:

• receiving a seismic signal having a magnitude from each seismic event in a plurality of seismic events that are in a plurality of stimulated stages in the reservoir to provide detected seismic event information in each of the stages, the seismic signal being received by an array of seismic receivers;
• selecting a stage in the plurality of stages as a reference stage according to a selection criterion;
• estimating a number of undetected seismic events and a magnitude for each of the undetected seismic events to provide undetected seismic event information for each stage in the plurality of stages, the number of undetected seismic events and corresponding magnitudes for each stage in the plurality of stages being estimated using each of the detected seismic events and corresponding magnitudes for the corresponding stage, wherein the detected seismic event information and the undetected seismic event information provide corrected seismic event information for each stage in the plurality of stages;
• determining a scalar property that is a measure of energy released by the seismic events for each stage in the plurality of stages, the scalar property being determined from the detected seismic event information provided by each received seismic signal for each stage;
• calculating a scaling factor for each stage using the scalar property of the corresponding stage and the scalar property of the reference stage, the scaling factor relating the scalar property of the corresponding stage to the scalar property of the reference stage, wherein the scaling factor comprises a ratio of the scalar property of the corresponding stage to the scalar property of the reference stage;
• applying the scaling factor for each stage to the corrected seismic event information for the corresponding stage to provide scaled seismic event information for each stage in the plurality of stages;
• correcting the fracture model with the scaled seismic event information for each stage in the plurality of stages to provide a corrected fracture model;
• calculating a stimulated reservoir volume using the corrected fracture model;
• transmitting, using an output interface, a signal comprising the corrected fracture model to a controller;
• and
• controlling at least one of drilling equipment, completion equipment, and hydrocarbon extraction equipment based on the stimulated reservoir volume using the controller.