Canada Keli is a technology-based enterprise, mainly focusing on oilfield-related chemical research and application, energy c ... onservation, and environmental protection services. We have strong R&D capabilities and strong collaboration with research institutes and universities in China and Canada. In the past 30 years, our company has developed innovative and proprietary technologies and products in the upstream, midstream, and downstream of the oil and gas production, especially in crude oil dehydration, sewage/wastewater treatment, and sludge treatment. read more