What is BS EN 1918-1 - Underground gas storage - Functional recommendations for storage in aquifers about?
BS EN 1918-1 covers the functional recommendations for design, construction, testing, commissioning, operation, maintenance and abandonment of underground gas storage (UGS) facilities in aquifers up to and including the wellhead.
BS EN 1918-1 specifies practices, which are safe and environmentally acceptable.
In this context, "gas" is any hydrocarbon fuel:
- Which is in a gaseous state at a temperature of 15 °C and under a pressure of 0,1 MPa (this includes natural gas, compressed natural gas (CNG) and liquefied petroleum gas (LPG). The stored product is also named fluid
- Which meets specific quality requirements in order to maintain underground storage integrity, performance, environmental compatibility and fulfils contractual requirements.
BS EN 1918-1 specifies common basic principles for underground gas storage facilities.
Note 1: Users of this European Standard should be aware that more detailed standards and/or codes of practice exist. A non-exhaustive list of relevant standards can be found in Annex A.
Note 2: For necessary surface facilities for underground gas storage, EN 1918-5 applies.
Who is BS EN 1918-1 - Underground gas storage - Functional recommendations for storage in aquifers for?
BS EN 1918-1 on Underground gas storage - Functional recommendations for storage in aquifers is useful for:
- Petroleum and natural gas industry
- UGS plants
- Designers and constructor units aquifer gas storage facilities
- Environmental safety agencies
- Disaster management departments
Why should you use BS EN 1918-1 - Underground gas storage - Functional recommendations for storage in aquifers?
The primary function of UGS is to ensure that supply is adjusted for peak and seasonal demand. Apart from this, the storage facilities can provide stand-by reserves in case of interruption of the planned supply. Increasingly UGS is applied for commercial storage services.
Thus, in summary, underground gas storage facilities can be used for:
- Security of supply
- Providing flexibilities
- Balancing of seasonal demand variabilities
Storage of gas in aquifers is a proven technology and is mainly used for the storage of large gas volumes. UGS in aquifers (see Figure 2), in which gas reservoirs are built up artificially in originally water bearing structures, require an extended exploration phase in order to prove its ability for the storage of gas.
BS EN 1918-1 provides guidance on design, construction, operation and maintenance of the facility to ensure safety and reliability.
Storage of gas in oil and gas fields in accordance with BS EN 1918-2 will help you ensure:
- Satisfactory containment of the gas-filled zone
- Prevent gas leakage at anticipated operating pressures
What’s changed since the last update? .
BS EN 1918-1 supersedes EN 1918-1:1998. BS EN 1918-1 includes some technical changes with respect to EN 1918-1:1998. These include:
- More details on function and technology of underground storage, including figures
- Addition of activities and reviews related to safety
- More details on maximum operating pressure determination
- Additional elements to take into account in well design
- HSE - Addition of this new chapter