The technology improvement and development of the new design-engineering principles of pilot bore directional drilling

20th International Scientific Symposium of Students, Postgraduates and Young Scientists on "Problems of Geology and Subsurface Development"

Shadrina, A.^1 ; Saruev, L.^1 ; Vasenin, S.^1

National Research Tomsk Polytechnic University, Tomsk, Russia^1

关键词: Bending stress;    Design Engineering;    Directional drilling technologies;    Engineering design;    Impact energy;    Strain waves;    Technology improvement;    Test benches;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/43/1/012068/pdf
DOI  :  10.1088/1755-1315/43/1/012068

来源: IOP

【 摘 要 】

This paper addresses the effectiveness of impact energy use in pilot bore directional drilling at pipe driving. We establish and develop new design-engineering principles for this method. These principles are based on a drill string construction with a new nipple thread connection and a generator construction of strain waves transferred through the drill string. The experiment was conducted on a test bench. Strain measurement is used to estimate compression, tensile, shear and bending stresses in the drill string during the propagation of elastic waves. Finally, the main directions of pilot bore directional drilling improvement during pipe driving are determinated. The new engineering design, as components of the pilot bore directional drilling technology are presented.