To enhance the efficiency of heavy oil reservoir development in the Bohai Sea, an approach rooted in reservoir characteristics and offshore production conditions has been conceived. This is founded on research concerning the limitations of cold production artificial water injection, thermal production transfer drive or SAGD, as well as the fluid property constraints of conventional water drive and steam injection development, coupled with the constraints of oil layer thickness or oil column height affecting well deployment areas. The understanding gleaned from pilot tests and industry classification standards have also been factored in. Consequently, the proposed classification criteria for heavy oil reservoirs in the Bohai Sea are as follows: General Class Ⅰ-1 heavy oil (50*～150* mPa·s)

will be developed utilizing conventional water flooding and chemical flooding techniques. General Class Ⅰ-2a heavy oil(150*～350* mPa·s)will be developed through the conventional water drive and hot water drive. General Class I-2b heavy oil(350*～10 000 mPa·s)and weak water oil reservoirs will be developed using steam hubbing and steam flooding, whereas medium and strong water reservoirs will be developed using natural energy or artificial water flooding. Low oil column reservoirs will be developed using fire drive. Extra heavy oil with blocky bottom-water heavy oil(10 000～50 000 mPa·s)will follow a development strategy and technical path distinct to the types of heavy oil reservoirs in the Bohai Sea, utilizing steam huff and puff and SAGD. This research provides a solid foundation for the development, deployment, and technical research of Bohai's heavy oil fields.