The behavior of enclosed-type connection of drill pipes during percussive drilling

The behavior of enclosed-type connection of drill pipes during percussive drilling

Bibliographic Details
Parent link:IOP Conference Series: Earth and Environmental Science
Vol. 27 : Problems of Geology and Subsurface Development.— 2015.— [012057, 5 p.]
Main Author: Shadrina A. V. Anastasiya Viktorovna
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра транспорта и хранения нефти и газа (ТХНГ)
Other Authors: Saruev L. A. Lev Alekseevich
Summary:Title screen
Percussion drilling is the efficient method to drill small holes (>= 70 mm) in medium-hard and harder rocks. The existing types of drill strings for geological explorations are not intended for strain wave energy transfer. The description of the improved design of the drill string having enclosed-type nipple connections is given in this paper presents. This nipple connection is designed to be used in drilling small exploration wells with formation sampling. Experimental findings prove the effectiveness of the enclosed nipple connection in relation to the load distribution in operation. The paper presents research results of the connection behavior under quasistatic loading (compression-tension). Loop diagrams are constructed and analyzed in force-displacement coordinates. Research results are obtained for shear stresses occurred in the nipple connection. A mechanism of shear stress distribution is described for the wave strain propagation over the connecting element. It is shown that in the course of operation the drill pipe tightening reduces the shear stress three times.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2015
Series:Latest Technology of Oil and Gas Driling
Subjects:
электронный ресурс
труды учёных ТПУ
бурильные трубы
ударное бурение
породы
бурильные колонны
Online Access:http://dx.doi.org/10.1088/1755-1315/27/1/012057
http://earchive.tpu.ru/handle/11683/19958
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645146

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