salt cavity

The number of large-scale salt cavity and depleted reservoir stores is expected to increase.

The operator of the salt cavity or depleted field storage facility may not have control of the land between the wellheads.

Salt cavities are used for high pressure gas storage because their physical properties mean that they are particularly well suited for this purpose.

HSE regulates safety at salt cavity natural gas storage sites using legislation covering four separate areas:

This seasonal storage includes the cavity of the depleted Rough field in the North Sea and underground salt cavities.

Great Britain's gas supply infrastructure includes facilities for natural gas storage in salt cavities and depleted hydrocarbon reservoirs.

The application of PSR to the storage of natural gas at depleted reservoir and salt cavity sites.

The salt cavities or depleted reservoir, import and export processing facility and pipework of the storage site are all integrated with each other.

Here we describe the legal framework and HSE's role in ensuring safety at Great Britain's salt cavity natural gas storage sites.

The deliverability rate of Hornsea, an onshore salt cavity installation, is 620 million cubic feet per day (195 GWh/day).

Depleted reservoir or salt cavity storage sites meet the definition of an installation under COMAH. '

These include a mixture of salt cavity and LNG storage sites (onshore) and the depleted oil field at Rough (offshore).

The schematic below shows how COMAH and PSR apply to a depleted reservoir or salt cavity storage site.

For depleted reservoir and salt cavity gas storage sites, the SR should consider risks associated with gas pipes running within the establishment and the interface between the site and external pipelines.

This refers to recoverable natural gas stored in special storage facilities (depleted gas and/or oil field, aquifer, salt cavity, mixed caverns, or other) as well as liquefied natural gas storage.

The onshore storage of natural gas in underground natural strata, such as depleted reservoirs and salt cavities, is subject to the Control of Major Hazards (COMAH) Regulations 1999 as amended.

During the 20th century the extraction of salt on the north bank of the River Tees by aqueous hydraulic means, has resulted in a number of underground salt cavities that are completely impervious to gas and liquids.

HSE is inviting tenders from individuals or organisations to assess the safety standards at boreholes associated with underground salt cavity and naturally occurring reservoir gas storage developments and to assess the wider geological issues affecting safety at these developments.

In Great Britain natural gas is injected into storage in salt cavities from a high pressure pipeline connected to the national transmission system (NTS) and returned to the NTS at a later date, typically at times of high demand.