Sonam Field & Escravos Export System Surveys

TCO Marine / Chevron Nigeria have commissioned the development and eventual monetization of the Non-Associated Gas (NAG) reserves in the Sonam Field.

PROJECT SUMMARY
Project start: Aug 2015
Project completion: Aug 2019
Sectors: Oil & Gas, Maritime
Project location:Delta State, Nigeria

TCO Marine / Chevron Nigeria have commissioned the development and eventual monetization of the Non-Associated Gas (NAG) reserves in the Sonam Field.

To support this development, CARES has been engaged by TCO Marine / Chevron Nigeria Limited to perform an offshore geotechnical survey.

The geotechnical survey was conducted by CARES for the acquisition of site specific geotechnical conditions and engineering parameters for Okan and EERP infrastructure.

CARES constructed boreholes with push, piston and percussion sampling with provisions for wireline coring and perform in-situ piezocone penetration testing (PCPT) in the boreholes.

The overall project effort covers the 20” pipeline scope to Okan Non-associated gas reserve Wellhead Platform (NWP), including a Pig Receiver Platform (PRP) required near Okan NWP that will be bridge-linked to the existing facility.

The survey provided quality data for the detailed design of the Sonam and EESP pipelines, EESP PLEM, SPM anchors and Okan PRP.

SERVICES PROVIDED:
  • Geotechnical investigation
  • Sample collection
  • Data analysis
  • Final geotechnical report
  • Field report
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