Results 161 to 170 of about 118,861 (336)

Research progress and development of deep and ultra-deep drilling fluid technology

open access: yesPetroleum Exploration and Development
The research progress of deep and ultra-deep drilling fluid technology systematically reviewed, the key problems existing are analyzed, and the future development direction is proposed.
Jinsheng SUN   +4 more
doaj  

Understanding effect of high shear on oil based mud\u27s emulsion using Rheo-Confocal microscope [PDF]

open access: yes
Rheo-Confocal Microscopy is a cutting-edge technique that integrates rheometer and confocal microscope. This simultaneous measurement technique helps to study the behavior of drilling fluids under dynamic conditions. It’s very important to understand the
Baker Hughes Company
core   +1 more source

Formulation of New Drilling Fluids and Characterization in HPHT [PDF]

open access: yes, 2019
Master's thesis in Petroleum engineeringDuring the well construction process, a properly designed and formulated drilling fluid is vital in order to successfully drill a well.
Strømø, Simen Moe
core  

Biological and Mechanical Limitations for Chronic Fast‐Scan Cyclic Voltammetry Sensor Design

open access: yesAdvanced Materials Technologies, EarlyView.
Real‐time detection of neurochemicals has demonstrated value in the field of neuroscience. However, current methods have limitations for use in the chronic setting, which is often the ideal environment for research. This article discusses these limitations, as well as technologies that have been developed to overcome them, and provides recommendations ...
Mason L. Perillo   +6 more
wiley   +1 more source

A solids-free brine drilling fluid system for coiled tubing drilling

open access: yesPetroleum Exploration and Development, 2018
: There are many problems associated with coiled tubing drilling operations, such as great circulation pressure loss inside pipe, difficulties in weight on bit (WOB) transferring, and high probability of differential sticking.
Xiaojun WANG   +5 more
doaj  

Going from Inner‐Skinned to Outer‐Skinned Polyelectrolyte Multilayer Based Hollow Fiber Nanofiltration Membranes

open access: yesAdvanced Materials Technologies, EarlyView.
New negatively charged hollow fiber support membranes with an inverted porous structure are fabricated. These supports are coated with polyelectrolytes to form an outer‐skinned polyelectrolyte multilayer membrane. The membranes show a 3.8x increase in active membrane surface area compared to conventional inner‐skinned polyelectrolyte multilayer ...
Tjerk R. Watt   +4 more
wiley   +1 more source

Numerical and Experimental Study of High‐Speed Laser Cutting of Copper Current Collectors: Process Optimization for Quality Assessment

open access: yesAdvanced Materials Technologies, EarlyView.
This study employs a CFD model to simulate laser cutting of copper current collectors used for Li‐Ion battery production. This model predicts cut edge quality by assessing the influence of power, scanner speed, and foil thickness. Defects are classified and an optimal working area is found.
Caterina Angeloni   +3 more
wiley   +1 more source

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