International drilling equipment standards are primarily based on API (American Petroleum Institute) specifications, covering indicators such as material strength, safety factor, and environmental adaptability. For example, drill pipe must meet API 5D standards, with a yield strength of at least 758 MPa; mud pumps must comply with API 7K specifications to ensure continuous operation under high pressure (e.g., 52 MPa). Selection requires comprehensive consideration of formation lithology (e.g., PDC drill bits for soft rock, roller cone drill bits for hard rock), well depth (deep wells require high-power drive heads), environmental requirements (low-toxicity mud systems), and budget constraints.