System and method for performing microseismic fracture operations
AssigneeSchlumberger Technology Corporation
InventorsEfejera Akpodiate Ejofodomi, Xiaowei Weng
Life of this patent
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Abstract
A system and method of performing a microseismic fracture operation for a wellsite having a subterranean formation with a complex fracture network therein are provided. The method involves describing a relationship between microseismic events to determine the complex fracture network of the subterranean formation, generating a fault volume by extracting faults from the fracture network based on the relationship between the microseismic events, generating a discrete fracture network comprising discrete fractures from the complex fracture network by extracting fracture planes from the obtained fault volume, and simulating fracture geometry and proppant placement.
Claims31
A method of performing a microseismic fracture operation for a wellsite having a subterranean formation with a complex fracture network therein, comprising:
- performing the microseismic fracture operation with a fracture unit;
- obtaining oilfield data from the microseismic fracture operation, the oilfield data comprising a plurality of microseismic events;
- describing a relationship between microseismic events of the complex fracture network of the subterranean formation;
- generating a fault volume by extracting faults from the fracture network based on the relationship between the microseismic events;
- generating a discrete fracture network comprising discrete fractures from the complex fracture network by extracting fracture planes from the obtained fault volume;
- determining fracture attributes of the discrete fractures of the fracture planes;
- and
- determining fracture permeability from a correlation between dynamic wellsite parameters and the fracture attributes.
A method of performing a microseismic fracture operation for a wellsite having a subterranean formation with a fracture network therein, comprising:
- performing the microseismic fracture operation with a fracture unit to generate a plurality of microseismic events in the subterranean formation;
- describing a relationship between microseismic events of the complex fracture network of the subterranean formation;
- generating a fault volume by extracting faults from the fracture network based on the relationship between the microseismic events;
- generating a discrete fracture network comprising discrete fractures from the complex fracture network by extracting fracture planes from the obtained fault volume;
- determining fracture attributes of the discrete fractures of the fracture planes;
- determining permeability from a correlation between dynamic wellsite parameters and the fracture attributes;
- and
- determining an estimated production rate based on the fracture attributes.
A system for performing a microseismic fracture operation for a wellsite having a subterranean formation with a fracture network therein, comprising:
- a fracture unit, comprising:
- a microseismic tool that generates fault volumes by describing a relationship between microseismic events of the fracture network and extracting faults in the fracture network based on the relationship between the microseismic events;
- a fracture tool that generates discrete fractures from the fracture network by extracting fracture planes from the obtained fault volumes and determines fracture attributes of the discrete fractures of the fracture planes;
- a wellsite tool that simulates fracture geometry and proppant placement;
- and
- an optimizer that adjusts the fracture attributes based on dynamic modeling.
Dependencies are inferred from the claim text.