Method for implementing drilling machine accurate butt-joint

Abstract

The present invention discloses a method for implementing drilling machine accurate butt-joint, belonging to information science field. The method includes: detecting magnetic induction of the magnet via the sensor to judge relative position of the magnetic rod and the measuring rod; changing the tool face angle of the measuring rod to obtain the flat that the magnetic rod and the measuring rod co-located on; and according to the reference flat to obtain angle of the flat and the reference flat; obtaining the distance between shafts of the magnetic rod and the measuring rod according to the magnetic induction of the magnet when the magnetic rod moves axially; implementing the butt-joint of the magnetic rod and the measuring rod according to the angle obtained and the distance between shafts. The invention implements accurate butt-joint of two drilling machines in long-distance or complex geological conditions that satisfies the requirements of accuracy in drilling machine butt-joint procedure and the method is easy.

Description

technical field [0001] The invention relates to the field of information science, in particular to a method for realizing precise docking of drilling rigs. Background technique [0002] In horizontal drilling technology, drilling at different formations and depths can reach the design position through monitoring and control means. With the development of science and technology and specific construction requirements, such as the laying of long-distance oil and natural gas pipelines for the "West-to-East Gas Pipeline", the limitations of the traditional one-way crossing technology in terms of transmission distance can no longer meet the needs of long-distance crossings. requirements. [0003] In order to achieve long-distance traversal, the prior art provides a parallel tracking docking technology (also known as cross-penetration technology): two drilling rigs are located on both sides of the entry point and the exit point, and then the pilot hole is traversed at the same tim...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that in the process of realizing long-distance traversing, due to the long traversing distance, how to realize the precise docking of two drilling rigs is the focus and difficulty of research in traversing technology, but in the prior art , the ideal docking model and algorithm can never be found, or the docking accuracy provided by the existing technology is far from meeting the requirements of the construction party for equipment under modern technical conditions, and cannot meet the requirements for docking accuracy

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