Results 61 to 70 of about 118,861 (336)

Optimization of the Feldspar Usage in High Temperature Drilling Fluid [PDF]

open access: yes, 2012
This report basically discusses the overall element of the project which is entitled, Optimization of the Feldspar Usage in High Temperature Drilling Fluid.
Wan Mahmood, Wan Abdullah
core   +1 more source

A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?

open access: yesAdvanced 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

Impact of the drilling fluid system on the effectiveness of a high pressure jetting assisted rotary drilling system

open access: yesHeliyon, 2020
An enhanced drill bit combining high pressure fluid jetting with a conventional rotary drilling system incorporating a tailored drilling fluid was designed to improve drilling performance in hard crystalline rock.
Timon Echt   +2 more
doaj  

Numerical Simulation of the Effects of Slurry Properties on Displacement Efficiency [PDF]

open access: yes, 2014
In the course of cementing, improving the displacement efficiency in the annular is a basic premise to prevent drilling fluid channeling, guarantee the bonding strength of set cement and improve the sealing property of cement sheath.
Duoyuan, ZHANG
core   +2 more sources

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong   +11 more
wiley   +1 more source

Polymer Drilling Fluid with Micron-Grade Cenosphere for Deep Coal Seam

open access: yesJournal of Chemistry, 2015
Traditional shallow coal seam uses clean water, solid-free system, and foam system as drilling fluid, while they are not suitable for deep coal seam drilling due to mismatching density, insufficient bearing capacity, and poor reservoir protection effect.
Peng Xu   +4 more
doaj   +1 more source

Recent Progress on 2D‐Material‐Based Smart Textiles: Materials, Methods, and Multifunctionality

open access: yesAdvanced Engineering Materials, EarlyView.
Advancements in 2D‐material‐integrated smart textiles are reviewed, with a focus on materials, fabrication methods, and multifunctional applications, including energy harvesting, monitoring, EMI shielding, energy storage, and thermal management. The discussion addresses key challenges and provides insights into the future development of next‐generation
Yong Choi   +5 more
wiley   +1 more source

Improvement in filtration properties of water-based drilling fluid by nanocarboxymethyl cellulose/polystyrene core–shell nanocomposite

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
Since almost all drilling problems directly or indirectly relate to drilling fluid, improvement in drilling fluid significantly enhances drilling operations. Drilling fluid contains base fluid, suspended solid particles and chemicals.
Rahmatallah Saboori   +3 more
doaj   +1 more source

Experimental study on the influence of coal powders on the performance of water-based polymer drilling fluid

open access: yesEnergy Exploration & Exploitation, 2020
Coal powders, as cuttings, invade the drilling fluid along a coal seam during coalbed methane development, thereby changing the properties of the drilling fluid.
Lei Zhang   +6 more
doaj   +1 more source

Improve Performance of Water-based Drilling Fluids [PDF]

open access: yes, 2014
The significant of exploring deep wells is increasing rapidly to fulfill the global oil and gas demand. Deepwater drilling in offshore operations found negative impact on the drilling fluids rheological properties when exposed to high pressure high ...
Ismail, Abdul Razak
core   +1 more source

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