System and Method for Downhole Communication
AssigneeHalliburton Energy Services, Inc.
InventorsMichael L. FRIPP, Donald KYLE, Pete DAGENAIS
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Abstract
A method of servicing a wellbore extending from a surface and penetrating a subterranean formation is provided. The method comprises placing an assembly in the wellbore, wherein the assembly comprises at least a first downhole tool, a signal receiver subassembly, and a conveyance between the first downhole tool and the surface. The method further comprises the signal receiver subassembly receiving a first signal generated by contact between the wellbore and the assembly and initiating a first function of the first downhole tool based on the first signal.
Claims20
A method of communicating within a wellbore extending from a surface and penetrating a subterranean formation, comprising:
- placing a assembly in the wellbore, wherein the assembly comprises at least one downhole tool, a trigger unit subassembly, and a conveyance between the downhole tool and the surface;
- analyzing an indication of a speed of the assembly in the wellbore as it changes over time to decode a discrete signal encoded by the motion of the assembly in the wellbore;
- and
- when the discrete signal matches a preprogrammed number, triggering a function of the downhole tool by the trigger unit subassembly.
A method of servicing a wellbore extending from a surface and penetrating a subterranean formation, comprising:
- placing a assembly in the wellbore, wherein the assembly comprises at least a downhole tool, a signal receiver subassembly, and a conveyance between the downhole tool and the surface;
- receiving by the signal receiver subassembly an acoustic signal generated by motion of the assembly relative to the wellbore;
- and
- initiating a function of the downhole tool based on the acoustic signal.
A method of servicing a wellbore extending from a surface and penetrating a subterranean formation, comprising:
- placing an assembly in the wellbore, wherein the assembly comprises at least a first downhole tool, a signal receiver subassembly, and a conveyance between the first downhole tool and the surface;
- transmitting a first signal by manipulating the assembly in the wellbore proximate to the surface, wherein transmitting the first signal comprises moving the assembly to transmit a first discrete value and maintaining the assembly stationary to transmit a second discrete value and wherein the first signal encodes a first discrete number as a sequence of discrete values;
- receiving by the signal receiver subassembly the first signal generated by contact between the wellbore and the assembly;
- and
- initiating a first function of the first downhole tool based on the first signal.
Dependencies are inferred from the claim text.