Flexible pipe for hydraulic fracturing applications
A flexible pipe includes one or more outer layers, a primary liner disposed internal to the one or more outer layers, and a removable liner disposed internal to the primary liner. Additionally, a flexible piping system includes the flexible pipe with a first end and a second end. Further, an annulus is disposed between the primary liner and the removable liner. Furthermore, a pressure port is provided and extends from the annulus to an outer surface of the flexible piping system. An end fitting is disposed at the first end of the flexible pipe.
1. A method comprising:
injecting an erosive fluid through a flexible piping system connected to a downstream component and an upstream component, the flexible piping system comprising:
a primary liner;
a removable liner; and
an annulus disposed between the primary liner and the removable liner;
monitoring an integrity of the removable liner via one or more sensors disposed within or fluidly connected to the annulus; and
replacing the removable liner, wherein replacing the removable liner comprises:
stopping injection of the erosive fluid through the flexible piping system;
purging the erosive fluid from the flexible piping system;
disconnecting the flexible piping system from the upstream and downstream components;
removing the removable liner from the flexible piping system;
positioning a new removable liner internal to the primary liner;
reconnecting the flexible piping system to the upstream and downstream components; and
resuming injection of an erosive fluid through the flexible piping system.
2. The method of claim 1 , further comprising visually inspecting the removable liner.
3. The method of claim 1 , wherein removing the removable liner further comprises stretching the removable liner, and extending the removable liner through the primary liner.