Fatigue crack growth analysis of drill pipes during rotary drilling operations by the multiple reference state weight function approach
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Failure Analysis"
DOI: 10.1016/j.engfailanal.2016.12.013
Abstract: Abstract Drill-string fatigue failures are the most common and costly type of failures in Oil & Gas and Geothermal drilling operations. However, the drilling industry currently does not have a means of quantitatively evaluating drill-pipe… read more here.
Keywords: drill pipe; drilling operations; multiple reference; geometry ... See more keywords
Failure analysis on aluminum alloy drill pipe with pits and parallel transverse cracks
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Failure Analysis"
DOI: 10.1016/j.engfailanal.2021.105809
Abstract: Abstract In recent years, aluminum alloy drill pipe are used more and more frequently in the exploration and development of the deep wells, ultra-deep wells and sour gas wells due to the high strength, light… read more here.
Keywords: analysis; aluminum alloy; alloy drill; drill pipe ... See more keywords
Effect of orbital motion of drill pipe on the transport of non-Newtonian fluid-cuttings mixture in horizontal drilling annulus
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2018.11.009
Abstract: Abstract The effect of orbital motion of drill pipe on the transport of non-Newtonian fluid and cuttings is simulated by means of the two-fluid model in combination with the kinetic theory of granular flow in… read more here.
Keywords: effect; orbital motion; drill pipe; drill ... See more keywords
Research on the fatigue properties of S135 drill pipe steel under a variety of conditions
Sign Up to like & getrecommendations! Published in 2019 at "Materials Research Express"
DOI: 10.1088/2053-1591/ab3ffc
Abstract: Through rotating bending fatigue test, the fatigue properties of S135 drill pipe steel were investigated under various conditions (a): the smooth specimens; (b): the notched specimens; (c): the notched specimens with H2S corrosion). The experimental… read more here.
Keywords: pipe steel; drill pipe; s135 drill; fatigue ... See more keywords
Natural Frequencies and Mode Shapes of Drill Pipe in Subsea Xmas Tree Installation
Sign Up to like & getrecommendations! Published in 2020 at "Mathematical Problems in Engineering"
DOI: 10.1155/2020/5634194
Abstract: In this study, experimental and numerical investigations on the vibration characteristics of a drill pipe during the lowering of a subsea Xmas tree were presented. A fourth-order partial differential equation with variable coefficients was established… read more here.
Keywords: frequencies mode; drill pipe; xmas tree; mode shapes ... See more keywords
Numerical Analysis of the Stress Distribution and Concentration Factors of the Tool Joint of the Directional Drill Pipe
Sign Up to like & getrecommendations! Published in 2023 at "Mathematical Problems in Engineering"
DOI: 10.1155/2023/8106535
Abstract: With the wide application of directional drilling technology in coal mine predraining boreholes, the failure problem of the tool joint of the directional drill pipe has become one of the main factors restricting the drilling… read more here.
Keywords: drill pipe; tool joint; joint directional; directional drill ... See more keywords
Effect of tungsten doping on the performance of MAO coatings on a Ti6Al4V drill pipe
Sign Up to like & getrecommendations! Published in 2020 at "Surface Innovations"
DOI: 10.1680/jsuin.20.00002
Abstract: A tungsten (W)-doped microarc oxidation (MAO) coating on a TC4 titanium (Ti) alloy drill pipe was prepared by adding sodium tungstate (Na2WO4) into electrolytes. The effects of adding different con... read more here.
Keywords: drill pipe; tungsten doping; mao; effect tungsten ... See more keywords