Storage Tanks
Our capabilities in storage tank technology encompass the following areas, among others:
- Development of inspection and maintenance guidelines and procedures
- Review of new tank designs for compliance with API 650 or API 620 requirements
- Evaluation of existing atmospheric storage tank condition for compliance with API 653 requirements
- Analysis of locally corroded regions of tank shell for suitability
- Evaluation of shell and bottom differential settlement
- Evaluation of fixed and floating roof systems
Here are a few examples of assignments related to storage tank technology that we have successfully completed:
- Evaluated the design of an API 620 tank intended for hazardous waste storage. Found fundamental error in vendor's nozzle design computer program which directly affected the required reinforcement.
- Analyzed 50-year-old pressurized storage spheres for continued operation. Identified fill height limitations based on measured thicknesses.
- Developed fill height limitations for API 650 tanks based on corroded shell measurements.
- Demonstrated by stress analysis that severe local shell corrosion at the bottom-to-shell junction did not require downrating of an API 650 tank.
- Developed design and installation details for adding new nozzles to existing storage tanks.
- Prepared design and installation specification for a double bottom, secondary containment system for retrofit into atmospheric storage tanks.
- Prepared inspection and maintenance checklists for use by field personnel.
- Performed bid conditioning review and later engineering follow-up for two new crude oil storage tanks.
- Evaluated the condition of storage tank bottoms to determine their suitability for continued service in accordance with API 653 criteria. Developed repair recommendations as required.
- Performed beta testing of new tank analysis computer program.
