Results 61 to 70 of about 945,774 (394)
Natural Gas Industry BTo master changes in rock mechanical properties and the impact of high temperature on rock-breaking efficiency, the rock mechanical properties of granite, limestone, and sandstone under different temperatures and single-tooth static-pressure experiments ...
Dongdong Song +9 more
doaj +1 more source
Selection of a Suitable Rheological Model for Drilling Fluid Using Applied Numerical Methods
Energies, 2020 The accuracy of fitting the rheological model to the properties of actual drilling fluid minimises the errors of the calculated technological parameters applied while drilling oil wells.
R. Wiśniowski +2 more
semanticscholar +1 more source
Preliminary test on modified clays for seawater resistant drilling fluids [PDF]
, 2015 The quality of a drilling fluid declines in salt water conditions. An engineered clay (HYPER clay) was developed for geosynthetic clay liners with enhanced resistance to aggressive conditions.
Bezuijen, Adam +3 more
core
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Advanced Engineering Materials, EarlyView.Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli +5 more
wiley +1 more source
Metal drilling with portable hand drills [PDF]
, 1970 Study of metal drilling solves problems of excessive burring, oversized holes, and out-of-round holes. Recommendations deal with using the proper chemical coolants, applying the coolants effectively, employing cutting oils, and dissipating the heat ...
Edmiston, W. B. +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram +2 more
wiley +1 more source
Application of numerical simulation in the solid expandable tubular repair for casing damaged wells
Petroleum Exploration and Development, 2009 In order to analyze the stress, strain, and residual stress of the solid expandable tubular (SET) applied in repairing casing damaged wells and to analyze the internal tube changes, the SET finite element model is established by ANSYS; the boundary ...
Xu Binggui +4 more
doaj +1 more source
Proceedings of the National Academy of Sciences, 2013 For scientists who study subseafloor sediment, it’s not unusual to spend a lot of time at sea aboard a ship with a gaping hole in its hull. Known as a moon pool, the hole serves as a portal for the ship’s weighty drilling equipment to retrieve core samples of seafloor sediment thousands of meters below. Aboard …
openaire +3 more sources
Initial Reports of the Deep Sea Drilling Project, vol. 85 [PDF]
, 1985 Covering Leg 85 of the cruises of the Drilling Vessel Glomar Challenger Los Angeles, California, to Honolulu, Hawaii March-April 1982. Includes six chapters: 1.
Barron, John A. +14 more
core +1 more source
Advanced Engineering Materials, EarlyView.A new experimental setup, incorporating digital image correlation and infrared thermography in combination with inductive‐conductive heating for precise temperature control, is used to analyze the mechanical behavior and microstructural changes of sheet metal under complex thermomechanical test conditions that represent quench and partitioning ...
Christian Illgen +4 more
wiley +1 more source