• Maintenance and Support Engineering of Chengdao Oilfield Offshore Platform

    Technology Inspection Center, Shengli Oilfield Branch, Sinopec Corp.

    Maintenance and Support Engineering of Chengdao Oilfield Offshore Platforms

    Dongying, Shandong, China

Project Summary

Project

In the Chengdoa oilfield in Bohai bay a number of offshore platforms have reached the end of their design life, and needed to be reassessed for extended life considering the security of the platform structures and maintenance processes to ensure safe operation. Sinopec had to perform underwater inspection of the platforms, evaluate their structural security, and determine maintenance feasibility.  Sinopec needed integrated, collaborative software to analyze, manage, and share the assessment data among the project team for an optimal project solution.

Solution

Sinopec relied on Bentley SACS to evaluate the structural integrity of the platforms and consider the maintenance alternatives based on the analytical data required for safe operation of the marine platform lifecycle and integrity management. As a result of the reassessment, Sinopec determined that 90 percent of the platforms could be extended for about 10 years though simple maintenance reinforcement.

Outcome

Extending the life of these aging assets through simple maintenance processes will save Sinopec billions of dollars in new asset costs and provide an annual return of 3 million tons in oil and gas production by extending the life of these existing assets. Using Bentley SACS to reach this conclusion, Sinopec reduced project costs, accelerated deliverables, and increased the quality of the analytical data required for safe operation of the marine platform lifecycle and integrity management. The increased collaboration and information mobility provided by SACS streamlined the team’s communications between site detection and maintenance evaluation activities.

Software

Sinopec used Bentley SACS to assess the structural integrity of the existing platforms and determine whether repairs were necessary, economically feasible, and could be completed effectively.
Bentley SACS enhanced the quality of the analytical data and accelerated accurate communication among the project team, saving time and reducing project costs. Sinopec relied on the comprehensive analysis and information mobility offered by SACS to thoroughly evaluate safe platform operation and determine a feasible maintenance process to extend platform service life. This resulted in an annual return of 3 million tons in oil and gas production and billions of dollars in savings. 

Outcome/Facts
  • Sinopec used Bentley SACS to reassess offshore platforms in China’s Chengdao oilfield, concluding that 90 percent of the platforms could be extended for about 10 years, saving billions of dollars and returning an annual 3 million tons in oil and gas production.
  • Using SACS, Sinopec reduced project costs, accelerated deliverables, and increased the quality of the analytical data required for safe operation of the marine platform lifecycle and integrity management.
  • The increased collaboration and information mobility provided by SACS streamlined communications between site detection and maintenance evaluation activities by the project team.