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As most of the main oil fields in the Bohai Oilfield enter the stage of low production, high water content and high recovery, more advanced technology must be adopted to ensure that the Bohai oil fields produce 40 million tons. Based on such a situation, the long horizontal section horizontal well technology came into being, which can achieve a wider range of oilfield exploration, thus greatly enhancing the production of China's oilfields and better serving the people. Although the longdoi:10.53469/jissr.2021.08(06).28 fatcat:qdfzkwwoozhyhn55mlu5euyco4