US 12,085,196 B2
Flexible pipe for hydraulic fracturing applications
Philippe Espinasse, Houston, TX (US); Gary Bernard, Houston, TX (US); Jean-Luc Streiff, Houston, TX (US); and Dan Fink, Porter, TX (US)
Assigned to FMC Technologies, Inc., Houston, TX (US)
Appl. No. 17/288,262
Filed by FMC Technologies, Inc., Houston, TX (US)
PCT Filed Oct. 18, 2019, PCT No. PCT/US2019/056987
§ 371(c)(1), (2) Date Apr. 23, 2021,
PCT Pub. No. WO2020/086404, PCT Pub. Date Apr. 30, 2020.
Claims priority of provisional application 62/751,248, filed on Oct. 26, 2018.
Prior Publication US 2021/0381627 A1, Dec. 9, 2021
Int. Cl. F16L 11/08 (2006.01)
CPC F16L 11/083 (2013.01) [F16L 2201/30 (2013.01)] 3 Claims
OG exemplary drawing
 
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.