Flow control apparatus

摘要

A flow control apparatus for use in a wellbore comprises a screen, a first inflow control device and a second inflow control device, wherein a fluid inflow path is provided through the screen and from an outer portion to an inner portion of each inflow control device. A method of cleaning a flow control apparatus such as that described above comprises providing in a wellbore a flow control apparatus comprising at least one screen and at least one inflow control device wherein a fluid inflow path is provided through the at least one screen and from an outer portion to an inner portion of the at least one inflow control device, targeting the at least one inflow control device with a treatment fluid and delivering the treatment fluid such that the fluid flows in a reverse direction along the fluid inflow path.

主权项

1. A method of cleaning a flow control apparatus in a wellbore comprising:
providing in a wellbore a flow control apparatus comprising a base pipe, at least one screen and at least one inflow control device, wherein a fluid inflow path is provided through the at least one screen and into and along a region between the base pipe and the screen and from an outer portion to an inner portion of the at least one inflow control device; targeting the at least one inflow control device with a treatment fluid; and delivering the treatment fluid such that the fluid flows in a reverse direction along the fluid inflow path, wherein the step of targeting the at least one inflow control device comprises inserting a treatment tool into the wellbore for the delivery of the treatment fluid, and further comprising locating the treatment tool on a locator provided by the flow control apparatus, wherein the locator is configurable to permit the treatment tool to pass beyond the inflow control device.