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Introduction to Quick-connect Spiral Drill Pipe
Release time:
2019-01-16
Author:
Source:
Definition of quick-connection spiral drill pipe: quick-connection spiral drill pipe is a spiral drill pipe that can be quickly connected by spring pin automatic locking or semicircular pin, straight bolt, U-shaped pin and oblong wedge pin for connection and positioning. The connection is convenient and quick, with the characteristics of light weight, high elasticity and not easy to bend. Compared with other drill pipes, it has obvious advantages of convenient operation and fast drilling speed, so it is called quick-connect spiral drill pipe. The broad range of quick-connection spiral drill pipes: in custom, quick-connection spiral drill pipes refer to Φ φ42mm, Φ φ69mm and Φ φ72mm, and we position them as square steel quick-connection drill pipes in sales. In a broad sense, it also includes other drill pipes with quick connection: such as water detection drill pipe, gas discharge drill pipe, calibration drill pipe, rattan and hemp drill pipe, and large-scale drill pipe overlapping with geological spiral drill pipe. Quick-connect spiral drill pipe connection: there are three types, namely, square, hexagonal and threaded connection of some models, of which the four-way connection is the most commonly used. Quick-connect spiral drill pipe executive standard: welding structure soft rock drill pipe and drill bit MT/T904-2002. The quick-connect spiral drill pipe manufactured by our company is largely higher than the industry implementation standard, which provides a guarantee for the actual drilling needs of customers. Quick connect type spiral drill pipe application scope: widely used in coal seam and near coal seam geological conditions of drilling, coal mine water exploration and gas discharge drilling construction, can also be used in geophysical exploration and water conservancy construction project anchoring, drilling construction and other fields. Definition of torque: Torque is a special moment that causes an object to rotate. The international unit is Nm N.m. The torque of the engine refers to the torque output by the engine from the crankshaft end. Under the condition of fixed power, it is inversely proportional to the engine speed. The faster the speed, the smaller the torque, and vice versa. The external torque is called torque or external torque, and the internal torque is called internal torque or torque. Factors affecting the torque value: the torque value of the drill pipe is mainly caused by the specifications, material and joint form of the drill pipe body and the change of the production process. Among them, the change value is due to the difference of materials and processes. The drilling depth of the drill pipe is related to the torque of the drill pipe, but not absolutely by the torque of the drill pipe. To determine the drilling depth, the drilling depth should be determined according to different geological conditions and the type of drill pipe selected.
Key words:
Spiral, drill pipe, torque, connection, borehole, depth, engine, geology
