4/20/2023 0 Comments Directional drilling machine![]() ![]() Horizontal directional drilling (HDD) technology is widely used in underground pipeline installation and horizontal oil and gas wells to drill horizontal boreholes. ![]() A combined test demonstrated the feasibility of the entire drilling-length detection system. The host-computer software processes, displays, and saves the drilling-length data, whereas the slave microprocessor software operates the hardware system. The software subsystem is composed of a visual software running on the host computer and a software running in the slave microprocessor. Their responses are used to judge whether the drill-stem joint is passing through the clamping unit then, the order of their responses is used to judge the movement direction. A current coil is installed in front of the clamping unit, and two magneto resistive sensors are installed on the sides of the coil symmetrically and perpendicular to the direction of movement of the drill pipe. The hardware subsystem employs a single-chip microprocessor as the main controller. The detection system consists of a hardware subsystem and a software subsystem. The basic principle is to detect the change in the magnetic-field strength near a current coil while the drill stem and drill-stem joint successively pass through the current coil forward or backward. ![]() Herein, a technique for real-time HDD length detection and a management system based on the electromagnetic detection method with a microprocessor and two magnetoresistive sensors employing the software LabVIEW are proposed. The drilling length is an important parameter in the process of horizontal directional drilling (HDD) exploration and recovery, but there has been a lack of accurate, automatically obtained statistics regarding this parameter. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |