Billions of tonnes of methane, carbon dioxide, heavy metals, naturally occurring radio-active materials, oil slops and hazardous chemicals are emitted from oil and gas installations and refineries. The management, process and safe disposal of these noxious wastes are central to our thoughts and actions.

In 2016 alone around 90,000 tonnes of waste from the UK’s offshore oil industry went to landfill, while 60,000 tonnes ended up in aqueous disposal and composting. There are about 93,000 tonnes of oil sludge, liquids and tank washing with a further 15,000 tonnes of oil & chemical waste produced.

Problems with oil & gas extraction

Additives, compounds, weighting & lubricating materials and stabilisation chemicals are deployed in virgin or brownfield environments. While we acknowledge that the industry and individual companies take as much care as possible, things can go wrong. These operations carry risks of spills, leaks, contamination and unintentional dumping. Once a well is in production there is a risk of unintentional hydrocarbon release. Additionally, operators face the problem of disposing the produced material and its waste at surface.

SEM can provide you with a tailor-made solution designed for your individual needs.

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"Energy companies used nearly 250 billion gallons of water to extract unconventional shale gas and oil from hydraulically fractured wells in the United States between 2005 and 2014" — Duke University.


SEM have a solution to combat the problem of waste oil, water and polymer from the rig, refinery and power generation sectors.

We extract heavy metals, cuttings, impurities and toxins and either return purified hydrocarbon back in to the supply chain, where it is of commercial value, or dispose of it. Our aim is zero discharge, zero landfill, zero emissions and carbon neutrality.

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