borerørs

Borerør, also known as drill pipe, are hollow tubes that form the threaded connection of the drill string in drilling operations. Their primary function is to transmit rotational force and hydraulic power from the surface to the drill bit located at the bottom of the well. Borerør are designed to withstand significant torsional stress, tensile loads, and external pressures encountered during drilling. They are typically manufactured from high-strength steel alloys to ensure durability and resistance to wear and corrosion.

The length of individual borerør sections, commonly referred to as "stands," varies but is typically around 90 feet (27 meters). These stands are connected together using specialized tool joints, which are robust threaded couplings that allow for rapid assembly and disassembly of the drill string. The internal diameter of the borerør also plays a role, influencing the flow rate of drilling fluid pumped through the string. Different sizes and weights of borerør are available to suit various drilling conditions, depths, and formation types. Maintaining the integrity and proper connection of borerør is crucial for the safety and efficiency of the drilling process.