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US 10,294,773 B2Granted
Method and system for magnetic ranging and geosteering
AssigneeHalliburton Energy Services, Inc.
InventorsBurkay Donderici, Clinton James Moss
Life of this patent
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Abstract
A magnetic ranging system utilizes the natural shape of magnetic fields for steering and/or landing of one wellbore in relation to another wellbore.
Claims25
A method for downhole ranging, the method comprising:
- placing a first magnetic dipole in a first wellbore;
- placing a triaxial magnetic beacon in a second wellbore;
- obtaining a first measurement of a magnetic field propagating between the first and second wellbores, wherein the first magnetic field has a natural shape;
- calculating a direction of the first magnetic field measurement based upon the natural shape of the magnetic field;
- determining a path of approach based on the natural shape of the magnetic field;
- and
- steering a bottom hole assembly based upon the path of approach.
4 more elements
A non-transitory computer readable medium comprising instructions configured to cause a downhole ranging system to perform operations comprising:
- obtaining, from a triaxial magnetic beacon disposed within a second wellbore, a first measurement of a magnetic field generated by a first magnetic dipole disposed within a first wellbore and propagating between the first wellbore and the second wellbore;
- calculating a direction of the first magnetic field measurement based upon the natural shape of the magnetic field;
- determining a path of approach based on the natural shape of the magnetic field;
- and
- generating signals to steer a bottom hole assembly based upon the path of approach.
2 more elements
Dependencies are inferred from the claim text.