Gas Liquids Engineering Ltd. (GLE) is a recognized expert in the development of underground storage projects, including the geostorage of natural gas liquids (NGL) in salt caverns, natural gas storage, carbon sequestration, and acid gas injection (H2S and CO2). We have carried out grassroots storage projects, major facility expansions, and process optimizations for these types of facilities. GLE executes the complete EPCM (Engineering, Procurement, and Construction Management) activities on a variety of storage projects from conception to startup. We are accustomed to interfacing directly with reservoir engineering specialists at the outset of the project to ensure the design of the surface facilities will be a good match for the range of storage conditions that will occur. In the case of salt cavern storage projects, GLE will additionally EPCM the project associated with the cavern wash.
Natural gas and NGL storage is a vital component of an efficient energy network, and underground storage facilities are unique due to the very wide range of pressure and flow conditions that can occur throughout the storage cycle. It is necessary that the compression, pumping, dehydration, and separation systems all function throughout the entire wide range of conditions. For this reason, GLE has developed a specialized process simulator unit operation, which allows the process design to be modeled throughout the entire range of conditions encountered in the gas storage cycle. This system has a number of advantages:
- Link equipment selection to reservoir/cavern characteristics
- Determine optimum operating pressure range
- Select the best suited equipment using the actual cylinder selections or compressor maps
- Determine attainable storage volumes considering storage season duration and selected equipment
- Test ranges of injection and withdrawal conditions for effect on storage capability
- Avoid the common pitfalls of excessively simple models that overestimate
GLE designs underground storage systems with enough flexibility to meet your storage obligations while mitigating any uncertainty in the performance of the reservoir, cavern, or storage wells. We have experience in gas storage systems using reciprocating and centrifugal compression, and either TEG dehydration, or Joule-Thompson choke plant dehydration. We additionally have experience in propane, butane, and general NGL storage caverns.