Results 11 to 20 of about 16,600 (166)

Smart Fluids and Their Applications in Drilling Fluids to Meet Drilling Technical Challenges

open access: yesAdvances in Materials Science and Engineering, 2022
This article presents extensive analysis and review on recent developments in smart fluids as well as future opportunities of smart drilling fluids utilization in oil and gas well drilling while focusing on the following smart fluids: smart nanoparticles, electrorheological, magnetorheological, and viscoelastic surfactant (VES) fluids.
Deng Jingen   +2 more
openaire   +3 more sources

Super-amphiphobic, strong self-cleaning and high-efficiency water-based drilling fluids

open access: yesPetroleum Exploration and Development, 2020
Based on the amphiphobic theory on underground rock surface, a super-amphiphobic agent is developed and evaluated which can form nano-micro papilla structure on rock, filter cake and metal surface, reduce surface free energy, prevent collapse, protect ...
Guancheng JIANG   +4 more
doaj   +1 more source

Drilling performance analysis of impregnated micro bit [PDF]

open access: yesMechanical Sciences, 2022
The cutting mechanical properties of impregnated diamond bit depend on the performance of its cutting elements. Aiming at the factors affecting the cutting element performance of impregnated diamond bit, the laboratory rock breaking experiment of ...
D. Song   +11 more
doaj   +1 more source

Effect of Nitric Acid on the Low Fluorescing Performance of Drilling Fluid Lubricant Based Animal and Vegetable Oils

open access: yesJournal of Spectroscopy, 2013
After synthesis of mixed fatty acid triethanolamine ester surfactant based on animal and vegetable mixed oils, the reaction solution was added into 4% (wt/wt) liquid nitric acid or 9% (wt/wt) solid nitric acid as eliminating fluorescent agent continuing ...
Feng-shan Zhou   +6 more
doaj   +1 more source

Effective Photocatalytic Degradation of Methyl Orange Using V2O5@ZnO Nanocomposite under UV and Visible Irradiations

open access: yesInternational Journal of Electrochemical Science, 2020
Today, reclamation and reuse of wastewater from textile, food and pharmaceutical industries are the big challenges for researchers to decrease the diseases and pollution in the world.
Dichen Tan   +6 more
doaj   +1 more source

Invasion Analysis of Oil-Based Drilling Fluid Based on NMR Experiment

open access: yesCejing jishu, 2023
In order to clarify the intrusion characteristics of deep and ultra-deep oil-based drilling fluids in the southern margin of Junggar basin and its influence on nuclear magnetic resonance (NMR) logging, NMR experiments are conducted to analyze the ...
LIN Jingqi   +5 more
doaj   +1 more source

Research of the pulsating flow of drilling fluid in the drill string

open access: yesTechnology audit and production reserves, 2022
The object of research is the pulsating flow of drilling fluid in the drill string. One of the most problematic places is pressure loss due to friction forces distributed along the length of the flow and concentrated in its nodes (threaded joints and pipe bends).
Viktor Svitlytskyi, Irina Boshkova
openaire   +2 more sources

An experimental drilling apparatus used for evaluating drilling risks related to natural gas hydrate

open access: yesMethodsX, 2020
Some countries are trying to drill and exploit natural gas hydrate (NGH). However, the disturbance effects of drilling on the stability of NGH-bearing sediments are unclear.
Tian-Jia Huang   +4 more
doaj   +1 more source

Research and Application of the Oil-absorbing Viscous Polymer for Oil-Based Drilling Fluid Plugging

open access: yesZuanjingye yu wanjingye
Lost circulation materials (LCMs), after being wetted by oil-based drilling fluids, have their sliding ability decreased and retention ability increased, causing them to be easy to flow back from the fractures through which the mud is lost and ...
Wentang LIU   +6 more
doaj   +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   +1 more source

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