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Casing Gas Recovery Compressor
Casing gas, which comprises natural gas within the casing during oil extraction, can hinder the production process if not managed due to its high pressure. Historically, it was simply released into the atmosphere, causing environmental harm and energy wastage. Employing compressors for pressurized reclamation is not just advantageous for boosting oil output and protecting the environment—it's also an effective strategy for enhancing economic efficiency.
This gas primarily consists of methane, ethane, propane, butane, and other hydrocarbons, along with impurities such as hydrogen sulfide and water vapor, rendering its composition quite complex. To prepare for compression, the gas typically undergoes purification to remove contaminants and free-standing water. Subsequent to purification, the pressure is elevated to cater to varying user requirements:
- For direct injection into oil pipelines, the pressure is increased to about 15-20 kilograms, aligning with pipeline pressure standards.
- For medium-pressure tanker transport, it's compressed to approximately 45 kilograms.
- For high-pressure tanker transport, the gas is pressurized to 250 kilograms.
These last two methods are particularly relevant for collection and transportation hubs. On account of their smaller volume and dispersed nature, single wells aren't well-suited for speedy loading and transportation via tank trucks.
Casing gas recovery compressors also effectively manage associated gas from oilfields, as well as wellhead gas and other analogous operational scenarios.
pipeline natural gas pressurization
When transporting natural gas through pipelines, various elements like the length of the pipeline, its diameter, and the presence of bends can lead to wear and potentially reduce the gas pressure. This can result in an insufficient supply at the point of use. To resolve this issue, it becomes essential to employ boosting systems to elevate the natural gas pressure to levels that satisfy user demands.
