Chemical injection system

摘要

A technique facilitates controlling fluid flows, such as fluid flows in a downhole well zone or zones. A flow control valve is employed to control a fluid flow and is operationally linked with an injection valve. Actuation of the flow control valve is used to automatically actuate the injection valve between corresponding positions allowing or blocking fluid injection. Closing or opening of the flow control valve thus results in a desired corresponding action of the injection valve, such as blocking flow or allowing flow through the injection valve.

主权项

1. A system for controlling flow, comprising:
a flow control valve having a housing with a flow port, the flow control valve further comprising a mandrel slidably mounted in the housing for movement between positions blocking flow and allowing flow through the flow port; and an injection valve coupled to an injection line, the injection valve having an injection port and a flow control member movable between positions blocking flow and allowing flow through the injection port, the injection valve being positioned in cooperation with the flow control valve such that movement of the mandrel to a given position automatically actuates the injection valve by mechanically moving the flow control member.