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Subsea Sand Management – Path C: Removal With Disposal (B-FSM-179)

After separation reintroduce to production line (bypass method)

New flow stream

  • Put sand in dedicated transport line, pig container, or float to surface

Clean and discharge (see module FSM-M8)

  • Requires sea floor disposal

Inject into disposal well

  • Slurry fracture injection

Repackage

  • Compress or use adhesive/cement to make “brick” for disposal or pickup
  • Containerize – put into container for disposal or pickup

Disintegrate (Comminution)

  • Use grinding, ultrasonic pulse, electrical discharge or chemicals to reduce particle size and put back into flow line

References:

  1. Rawlins, C.H. and Ditria, J.C., 2019. “The Subsea Sand Management Challenge – What to do with the Sand?”. Offshore Technology Conference, Houston, TX, 6-9 May, OTC-29278-MS. https://doi.org/10.4043/29278-MS
  2. Rawlins, C.H. 2019. “Enhanced Production Through Surface Facilities Sand Management.” SPE Distinguished Lecturer presentation. Link here
  3. eprocess-training.com

Next week I will continue discussion recommendations for subsea sand management.

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