Flow Control System for Use in a Well
AssigneeSchlumberger Technology Corporation
InventorsPierre Hosatte, Thomas MacDougall, Stephane Hiron, Michael Bertoja
Life of this patent
Estimating the term…
Abstract
A technique is provided to control flow in a well. A well completion comprises one or more flow control valve systems coupled by an electric line and a hydraulic line. Each flow control valve system comprises a flow control valve responsive to hydraulic input via the hydraulic line and an electro-mechanical device. The electro-mechanical device is responsive to inputs via the electric line and is used to control hydraulic input to the corresponding flow control valve.
Claims26
A well system, comprising:
- a well completion comprising a plurality of flow control valve systems coupled by an electric line and a single hydraulic line, each flow control valve system having at least three choke positions, wherein the unique selection of choke positions may be controlled for each flow control valve system solely through inputs via the electric line and the single hydraulic line.
A method of controlling flow at a plurality of locations along a wellbore, comprising:
- deploying a plurality of variable choke position, flow control valve systems along a wellbore completion;
- connecting the plurality of variable choke position, flow control valve systems with a single hydraulic line and an electric control line;
- and
- adjusting individual variable choke position, flow control valve systems to selected choke positions solely with inputs from the single hydraulic line and the electric control line.
A valve system for use in a well, comprising:
- a flow control valve having a variable choke, a position adjustment mechanism to set the variable choke at selected positions, and a dual line actuator to adjust the position adjustment mechanism to a desired position;
- and
- an electro-hydraulic servo valve coupled to a single hydraulic line and an electric line, wherein electrical input via the electric line enables adjustment of the electro-hydraulic servo valve to a first position, such that hydraulic input from the single hydraulic line moves the dual line actuator in a first direction, and to a second position, such that hydraulic input from the single hydraulic line moves the dual line actuator in a second direction.
A well system, comprising:
- a well completion having a plurality of flow control valves, each flow control valve having a choke adjustable between an open position, a closed position and at least one intermediate position, the plurality of flow control valves being individually controllable via inputs from an electric line and a single hydraulic line.
Dependencies are inferred from the claim text.