Base for two-in-one drilling technology

The utility model discloses a base for two-in-one drilling technology. The base comprises a main body (1), wherein a first wellhead (2) and a second wellhead (3) are arranged on the main body (1); the wall surface of the main body (1) is provided with two injection molding-free seal rings (4) and two pressure test holes (5); plugs (6) are mounted in the pressure test holes (5); a drilling riser (7) is mounted on the main body (1) through the seal rings (4); the drilling riser (7) is welded at the lowest end of the main body (1) through a welding groove; a raised stand pipe (8) is mounted at the upper end of the first wellhead (2). Therefore, the base is formed integrally. The base provided by the utility model has a simple structure, is used for sealing a drill conductor to seal hallow gas, and applies a space occupying drilling tool to facilitate off-angle drilling of a directional well.