Gas networks - Import export

Other areas covered by our dedicated divisions may also be involved in the execution of public and private works. Examples include the treatment of the soil on site, the connection to energy or utilities networks (electricity, gas, water, telecommunications), the installation of linear elements, urban furniture or road signage, various plants and fences, public lighting or even road marks.

Analysing the gas quality in the gas network is essential to monitor technical specifications and ensure correct billing. The GasPro is a mobile gas sampler, with which cyclic sampling can be carried out easily and flexibly at any point from dry gas networks. The samples are collected in a sample cylinder in the GasPro and can then be analysed in a laboratory. The GasPro allows the separation of sampling and sample analysis and is therefore more cost effective and flexible than for example fixed installed gas chromatographs.

With the development of CHARM®, Open Grid Europe is providing an efficient leakage control method for natural gas pipeline networks and thus an alternative to the labour intensive practice of conducting on-site inspections of the pipelines with gas detection devices. CHARM® is a highly accurate infrared laser system integrated in a helicopter that is capable of precisely detecting even very low methane concentrations from the air. Even in the case of very complex pipeline topologies, the course of the pipeline can be detected consistently on a large scale during the flight by an automatic, highly precise scanning beam control system (autotracking), thus ensuring a reliable leak tightness inspection of the natural gas pipeline.

Maintenance and repair work on the natural gas network is generally carried out with the pipeline being gas-free, so the relevant pipe sections are isolated by installing valve assemblies and the gas in the isolated section is vented to atmosphere. By using our mobile compressors – individually or in highly efficient parallel operation – the network operator can transfer the gas from the isolated pipe section to another part of the system so it does not have to be vented to atmosphere. Connection points for the mobile compressors are available e.g. in the area of the main line valves or can generally be retrofitted. It makes economic sense to transfer the gas to another as this guarantees responsible handling of this primary energy source and makes a substantial contribution to protecting the environment. Services offered: Pipeline recompression until lowest residual pressure < 3bar Reduction of methane emissions by up to 95% Responsible handling with primary energy