Results 31 to 40 of about 68,928 (314)

Premiminary tests on modified clays for electrolyte contaminated drilling fluids [PDF]

, 2015
The quality of a bentonite suspension declines in aggressive systems like brackish or saline pore water. An engineered clay (HYPER clay) was developed for sealing materials with enhanced resistance to aggressive conditions.
Bezuijen, Adam, den Hamer, Davina, Di Emidio, Gemmina, Verastegui Flores, Daniel   +3 more
core   +1 more source

Diagnostic Utility of Testing for Novel Murine Autoantibodies for Sjögren's Disease in the Rheumatology Outpatient Setting

Arthritis Care &Research, Accepted Article.
Objective The goal was to assess the diagnostic performance of three novel autoantibodies (NA) for Sjögren's disease (SjD) by comparing NA prevalence in patients with SjD, other autoimmune rheumatic diseases (ARDs), nonspecific chronic sialadenitis (CS), and controls.
Chadwick R. Johr, Michael D. George, Vatinee Y. Bunya, Nora Sandorfi, Mina Massaro‐Giordano, Frederick B. Vivino   +5 more
wiley   +1 more source

Stabilizing biopolymers in water-based drilling fluids at high temperature using antioxidants, a formate salt, and polyglycol [PDF]

, 2018
Biopolymers degrade in water-based drilling fluids when exposed to high temperatures for some time, thus leading to hole-cleaning problems such as stuck pipe.
Akpan, EU, Enyi, GC, Nasr, GG, Yahaya, AA   +3 more
core  

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Experimental Evaluation of the Treatment Effect of High Viscosity Drilling Fluid and Floating Oil Using Ozone Fine Bubble Technology

Nanomaterials
Drilling fluid plays a critical role in drilling engineering. With the deepening implementation of clean production concepts and increasingly stringent environmental regulations, the treatment standards for drilling wastewater at operational sites have ...
Xiaoxuan Guo, Lei Liu, Nannan Liu, Fulong Hu, Lijuan Zhang   +4 more
doaj   +1 more source

Змащувальні добавки та їх вплив на функціональні властивості бурових рідин [PDF]

, 2011
Наведена коротка характеристика різного виду змащувальних добавок до бурових рідин, описано їх властивості, вплив на фізико-хімічні та функціональні властивості бурових рідин, шляхи їх розвитку та області використання.
Бакулін, Є. М., Драганчук, О. Т., Процишин, В. Т.   +2 more
core  

Sulfur loss from subducted altered oceanic crust and implications for mantle oxidation [PDF]

, 2020
© The Author(s), [year]. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Walters, J. B., Cruz-Uribe, A. M., & Marschall, H. R.
Cruz‐Uribe, Alicia M., Marschall, Horst R., Walters, Jesse B.   +2 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Measurement of Drilling Fluid Rheology and Modeling of Thixotropic Behavior

Applied Rheology, 2019
Drilling fluids perform a number of important functions during a drilling operation, including that of lifting drilled cuttings to the surface and balancing formation pressures.
Skadsem Hans Joakim, Leulseged Amare, Cayeux Eric   +2 more
doaj   +1 more source

An Improvement in Thermal and Rheological Properties of Water-based Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT) [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2012
Designing drilling fluids for drilling in deep gas reservoirs and geothermal wells is a major challenge. Cooling drilling fluids and preparing stable mud with high thermal conductivity are of great concern. Drilling nanofluids, i.e.
Mostafa Sedaghatzadeh, Abbasali Khodadadi, Mohammad reza Tahmasebi birgani   +2 more
doaj   +1 more source