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ZEIT A & C Asset Integrity

Project title: ZEIT A & C Asset Integrity
Project location: Suez, Offshore Egypt
Project Summary:

Longitude provided a range of services in facilities and subsea engineering, including:

  • Advanced simulation and analysis
  • Pipeline engineering
  • Metocean analysis
  • Structural and fatigue analysis
  • Fitness for service (FFS) analysis

About the project

ZEITCO operates two platforms in the Red Sea, Offshore Egypt.

  • East Zeit A, an 8-pile construction designed in 1985 and installed in 1986.
  • East Zeit X, a 4-pile double batter construction, designed in 2002 and installed in 2003.

The platforms are connected by two 1.6km long 8” pipelines.

There are also two pipelines running to a shore terminal, a 10” crude oil line and a 14” gas line.

Longitude was tasked with assessing the topsides, jackets, and the connected pipelines.

Model of Zeit-A Platform

Our scope of work 

Longitude provided a range of facilities and subsea engineering services to deliver on the following scope:

  • Modelling of jacket and topside of A and C platforms
  • Assessment of pipeline condition based on survey
  • Assessment of strength and fatigue in A’s inspected condition
  • Derive historic metocean conditions using wave model data
  • Preparation of fitness for service report

The results

Longitude was able to complete a detailed assessment of the Zeit A and C platforms and pipelines by making use of past and current survey data.

Through a structural assessment of the platform for in-place strength and fatigue based on the results of recent inspections, a fitness for service assessment was completed.

The value we delivered

Accurate Representation of Real-World Conditions 

Through combining as-built design data and the results of on-site inspections and surveys, Longitude’s Engineers were able to accurately model the platform and represent fatigue and structural strength.

Comprehensive Structural Analysis 

Completed detailed engineering checks for critical components including jackets, topside structures, and pipelines – assessing operational capability.

Asset Life Extension

Longitude was able to provide accurate assessments of strength and fatigue, to allow a fitness for service assessment to be performed, for use in future life extension works and strategies.

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