Crustal and disturbance field survey correction
AssigneeConocoPhillips Company
InventorsKhalid Soofi, Avinash Ramjit, Son V. Pham, Stefan Maus
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Abstract
A system and method for magnetic survey uses an autonomous vehicle configured to traverse over the area in a grid pattern with a magnetometer coupled to the autonomous vehicle and configured to obtain magnetic measurements at a controlled rate, the magnetometer obtaining a uniform sampling of the magnetic measurements in each grid of the grid pattern; and a processor configured to obtain the magnetic survey based on the magnetic measurements.
Claims20
A system to continuously control drilling in an area based on a real-time on-site magnetic survey of the area, the system comprising:
- an autonomous vehicle operable to traverse over a predetermined area;
- a magnetometer coupled to the autonomous vehicle and operable to obtain magnetic measurements at a controlled rate, the magnetometer obtaining a uniform sampling of the magnetic measurements over the predetermined area;
- a processor configured to obtain the magnetic survey from the magnetic measurements and determine the azimuth of a borehole formed within a subterranean formation;
- and
- a controller operably coupled with a drill string, the controller operable to continuously adjust a drill bit disposed on the drill string based on the azimuth of the borehole as determined by the magnetic survey, wherein the controller operably adjusts the drill bit to a predetermined well path.
A method of continuously controlling drilling in an area based on a real-time on-site magnetic survey of the area, the method comprising:
- coupling a magnetometer to an autonomous vehicle configured to traverse over a predetermined area;
- obtaining magnetic measurements at a controlled rate using the magnetometer, the obtaining including obtaining a uniform sampling of the magnetic measurements for the area;
- obtaining, using a processor, the magnetic survey from the magnetic measurements determining an azimuth of a borehole;
- and
- adjusting a drill bit based on the azimuth of the borehole as determined by the magnetic survey, wherein the controller is operably coupled with the drill bit and operable to continuously adjust the drill bit to a predetermined well path.
A system to obtain a magnetic survey for an area, the system comprising:
- an autonomous vehicle operable to traverse over a predetermined area in a grid pattern;
- a magnetometer coupled to the autonomous vehicle and operable to obtain magnetic measurements at a controlled rate, the magnetometer obtaining a uniform sampling of the magnetic measurements in each grid of the grid pattern;
- a processor operable to obtain the magnetic survey based on the magnetic measurements and determine the azimuth of a borehole formed within a subterranean formation;
- and
- a controller operably coupled with a drill string to continuously adjust a drill bit disposed on the drill string based on the azimuth of the borehole determined by the magnetic survey, wherein the controller operably adjust the drill string to a predetermined well path.
Dependencies are inferred from the claim text.