1 results about "Aliphatic amine" patented technology

The invention relates to a carbon dioxide drive oil reservoir production method capable of realizing stage control on fluidity. The method is characterized in that for an oil reservoir formed by homogeneous cores and heterogeneous cores with the permeability ratio not exceeding 30, a water and gas alternate injection method is adopted for production; for an oil reservoir formed by heterogeneous cores with the permeability ratio in a range of 30 to 100, a carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when gas channeling occurs in a production well, small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging; for an oil reservoir formed by heterogeneous cores with the permeability ratio being higher than 100, the carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when the gas channeling occurs in the production well for the first time, elastic strong glue is injected into the formation for sealing and plugging; and when the gas channeling occurs in the production well again, the small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging.