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US 10,378,339 B2Granted
Method and apparatus for controlling wellbore operations
AssigneeSaudi Arabian Oil Company
InventorsVictor Carlos Costa De Oliveira, Ossama Sehsah, Mario Augusto Rivas Martinez
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Abstract
Method and apparatus for controlling wellbore operations include a wellbore communication system comprising: a control sub-assembly with a first control unit, a second control unit, one or more downhole sub-assemblies interchangeably mounted on and carried by a bottom hole assembly, each downhole sub-assembly configured to wirelessly send and receive signals from the second control unit.
Claims12
A wellbore communication system comprising:
- a control sub-assembly comprising
- a body configured to be attached to a drill string, the body including a first control unit and a second control unit;
- the first control unit comprising a first processor, a first transmitter, a first receiver and a first memory, the first control unit operable to send and receive wireless signals from the surface;
- the second control unit comprising a second processor, a second transmitter, a second receiver and a second memory, the second control unit operable to send and receive wireless signals from the first control unit;
- and
- one or more downhole sub-assemblies interchangeably mounted on and carried by a bottom hole assembly, each of the one or more downhole sub-assembly configured to wirelessly send and receive signals from the second control unit,
- wherein the first control unit is configured to organize information received from the one or more downhole sub-assemblies, organize the information in a standard telemetry sequence, and send it to the surface.
4 more elements
A method of controlling wellbore operations, the method comprising:
- receiving, by a first control unit deployed within a wellbore and mounted to a sub body and from a surface of the wellbore, instructions to perform operations within the wellbore;
- transmitting, by the first control assembly, at least a portion of the instructions to a second control unit downhole of the first control unit, the second control unit mounted to the sub body;
- receiving, by the second control unit, instructions to perform operations within the wellbore;
- selecting, by the second control unit, to which of a plurality of downhole tools a signal should be sent;
- and
- transmitting, by the second control assembly, at least a portion of the instructions to at least one of the plurality of downhole tools.
3 more elements
Dependencies are inferred from the claim text.