Industry expert Keith Leewis says that the term ‘unpiggable’ suggests one of several perceptions. The simplest explanation considers the obvious barriers to pigging a single pipeline:
- Access – a free swimming tool can’t be introduced or removed
- Low pressure, low flow – there is insufficient flow to overcome friction and drive a pig
- Multi-diameter – making high velocity excursions and the accompanying loss of data normal
- Physical barriers – the tool can’t navigate past internal obstacles or barriers
- Inconvenience – the customers can’t tolerate any reduced product flow and access is curtailed.
The Forum will focus on existing technologies as well as those in research and development.
Advances and best practices in above-ground remote assessments, guided wave technologies, and internal corrosion direct assessment methods will form a significant part of the programme.