Two companies – Trident Resources LLC and the Harrison Truck Centers – are working together to help reduce flaring in the Bakken shale formation, while also lowering fuel costs for trucking companies and reducing diesel emissions, Trident’s Tom Arnold told Rigzone.
Trident provides small liquid natural gas (LNG) plants to operators to develop gas capture systems. The captured natural gas (CNG) and LNG are then used to power large freight trucks, reducing diesel costs by as much as 60 percent, and total fuel costs by 35 percent.
“Trident resources captures flare gas on well sites that are stranded or the pipeline is pressured up. We remove the y-grade from the stream and compress the methane, creating a consistent Btu value CNG fuel for the dual fuel gliders. Trident reached out to Harrison to bring the dual-fuel Gliders to the Bakken because they are the leaders in that field,” Arnold said.
There is a real benefit for dual-fuel trucks that can burn CNG and LNG, Arnold noted. New diesels have expensive emissions systems, and when the diesel engine idles for prolonged periods in cold weather that is common in the Bakken, fuel collects in the emissions system due to incomplete combustion. When the truck accelerates, the rise in temperatures can ignite the unburned diesel fuel in the emissions system, burning out the exhaust sensors.
“The benefits of switching to dual fuel trucks is that they save logistics companies money by offsetting expensive diesel costs with cheaper CNG. There is no loss of power or torque and they don't have to deal with the new emission trucks,” Arnold said.
The rapid growth in fossil fuel production in the Bakken shale formation in North Dakota has far outstripped the existing infrastructure’s ability to transport natural gas to other areas, resulting in a significant amount of flaring. Containment boxes and a number of other solutions have been used to bring flaring under control after the North Dakota Industrial Commission – the entity in the state that regulates the oil and gas industry – imposed more restrictive flaring regulations on companies drilling in the state.
The Commission policy, which was announced in July, has a goal of reducing flaring to 26 percent by the 4Q 2014, 23 percent by 1Q 2015, 15 percent by 1Q 2016, and 10 percent by Q4 2020, according to the U.S. Energy Information Administration (EIA).
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