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major technology development

we adhered to problem-solving orientation and accelerated making breakthrough in key and frontier technologies. in e&p technology, we further developed enrichment theory and exploration technology for marine phase large and medium-sized gas fields in sichuan basin. the stable production technology for shale gas field supported the increasing production in fuling gas field. the ultra-deep drilling and well completion technology facilitated the construction work in shunbei ultra-deep well. in refining technology, we developed products such as low-sulfur bunker fuel, high-grade gasoline engine oil and diesel engine oil. in petrochemical technology, the industrial demonstration unit of the second generation highly-efficient environmental-friendly aromatics was successfully commissioned. the hydrogen peroxide production technology using anthraquinone method in slurry bed and the complete set technology of para-aramid were industrialized.