BIDI inspection of unloading lines

 Pipeline Description:

6″ Jet – A1 & 8″ Gasoline / Gasoil unloading pipelines connecting subsea CBM (Conventional Buoy Mooring System) with onshore storage terminal located in Antalya, Turkey. Water depth at CBM between 12 m – 14 m located in the Mediterranean Sea. The pipeline system has never been inspected before by using high resolution ILI tools. Only very limited pipeline information and drawings were available in preparation of this project. 

Why is it challenging?

There are no possibilities to install pig traps at the subsea end of both pipelines to perform a “standard” uni-directional ILI from trap to trap. 

Target of the inspection:

Determine the presence of internal and external metal loss, geometric anomalies and other features that may affect the pipeline integrity.