Drill Pipe API Specifications, Thread Types &Tables

The longest & major section of the Drill String Components is the Drill Pipe. Each joint of drill pipe consists of the tube body and the Tool Joint (connection). Therefore, in this article we shall discuss API drill pipe specifications (specs), description, classification & drill pipe connection thread types. 1 OD Specifications (specs) 2 Drill Pipe Nominal Weight Specifications 3 The Drill Pipe Grade Specifications 4 Type Of Tool Joint Upset 5 API & Non-API Connection Thread Types 5.1 API Drill Pipe Connection Thread Types 5.1.1 Numbered Connections 5.1.2 Regular Connections 5.1.3 Full Hole Connections 5.2 Non-API Drill Pipe Connection Thread Types 5.2.1 H-90 Connections 5.2.2 PAC Connections 5.2.3 SST Connections 5.2.4 Hi Torque Connections 6 The Classification Based on Wear. 6.1 API Drill Pipes Wear Classifications 7 API Connection Sizes Specifications & Thread Types Table