Specialists at TWI have designed and commissioned a high-pressure flow loop that
enables a greater range of tests to be carried out in an environment representative
of field conditions.
This unique facility allows the circulation of ISO 23936-1:2009 sour fluids containing
heptane, cyclohexane, toluene, carbon dioxide, hydrogen sulphide, methane and water
at pressures up to 89barg and temperatures up to 130°C. An important feature of
the test rig is the ability to conduct experiments under realistic field conditions
in terms of flow and mass transport.
During the operation of the rig, the fluid is conditioned in the bypass loop. This
fluid mixture can then be pumped through a pipe section or other component under
test and the temperature, pressure and flow rate monitored remotely.
Currently the rig is being used to test polymer-lined steel section for a joint
industry project: ‘Service performance and life prediction of polymer-lined steel
pipe – “polymer-lined pipe and OCTG”’. More information on this project can be found
on the project page on the TWI website.
Following completion of this work, TWI’s Members will have the opportunity to use
this facility for other applications, such as conditioning of sections of fibre-reinforced
composites, sealing assemblies and exposure testing of electronic components.
TWI’s established facilities for permeation monitoring of gas and liquid phases,
along with rapid gas decompression and fluid sampling facilities, can be used to
enhance these experiments.
More information about our work in this area can be found on the Environmental testing of polymers page.
To find out more about the high-pressure flow loop and discuss other potential applications,
TWI Training & Examination Services, TWI Ltd, Granta Park, Great Abington,
Cambridge CB21 6AL, United Kingdom
TWI Ltd. All rights reserved.
Tel: +44 (0)1223 899500