Electric completion system and methodology
AssigneeSchlumberger Technology Corporation
InventorsOguzhan Guven, David Lardy, Robert Krush
Life of this patent
Estimating the term…
Abstract
A technique facilitates construction and operation of electric completion systems which may be used in the oil and gas industry. The technique is able to eliminate some or all hydraulic lines and replace them with electric lines. Depending on the application, the electric power may be provided via a surface-based power source and/or a downhole power storage/generation source. Corresponding completion components, such as control valves, subsurface safety valves, gauges, and/or other completion tools, are electrically operated via power and communication provided through the electric lines and/or wireless telemetry without the cost and complexity of hydraulic control lines and downhole hydraulic components.
Claims20
A system for use in a borehole, comprising:
- an electric completion system having:
- an upper completion including a production packer and a wireless system disposed above the production packer, the wireless system configured to provide communication of data between the electric completion system and a surface facility;
- a lower completion coupled with the upper completion below the production packer of the upper completion by a coupling system that includes an inductive coupler and a hydraulic wet mate connection, the lower completion including a plurality of electric flow control valves positioned to control inflow and outflow of fluid with respect to the lower completion;
- an electric line system deployed along the upper completion and along the lower completion to the plurality of electric flow control valves;
- and
- an electric subsurface safety valve, wherein the electric subsurface safety valve and the plurality of electric flow control valves are operable via power supplied downhole by the electric line system.
A method, comprising:
- assembling an electric completion system having inflow and outflow of fluid controlled by a plurality of electric flow control valves, wherein the electric completion system comprises a lower completion coupled with an upper completion below a production packer of the upper completion by a coupling system that includes an inductive coupler and a hydraulic wet mate connection, and wherein the plurality of electric valves is disposed in the lower completion;
- deploying the electric completion system in a borehole;
- utilizing a wireless system disposed above the production packer of the upper completion to provide communication of data between the electric completion system and a surface facility;
- and
- utilizing an electric line system deployed along the upper completion and along the lower completion to provide electric power to the plurality of electric valves.
A system for use in a borehole, comprising:
- a well system utilizing at least one electric power source to provide power for actuating each of a plurality of electronically controlled devices downhole, the well system comprising:
- an electric completion system located in a wellbore, the electric completion system having:
- a lower completion coupled with an upper completion below a production packer of the upper completion by a coupling system that includes an inductive coupler and a hydraulic wet mate connection, wherein a portion of the inductive coupler is mounted to a running tool extending through the production packer;
- a plurality of electric valves positioned to control inflow of fluid from the wellbore and outflow of fluid to the wellbore, wherein the plurality of electric valves is disposed in the lower completion;
- a plurality of pressure and temperature sensors disposed along the electric completion system;
- and
- a wireless system located along the electric completion system to provide wireless transmission of at least one of communication data and power with respect to at least one of the plurality of pressure and temperature sensors or the plurality of electric valves;
- and
- an electric line system disposed along the upper completion and along the lower completion to the plurality of electric valves.
Dependencies are inferred from the claim text.