Results 91 to 100 of about 28,514,986 (248)

A Study on the Effects of Date Pit-Based Additive on the Performance of Water-Based Drilling Fluid

, 2017
This study investigates the effect of using date seed-based additive on the performance of water-based drilling fluids (WBDFs). Specifically, the effects of date pit (DP) fat content, particle size, and DP loading on the drilling fluids density ...
Jimoh K. Adewole, Musa O. Najimu
core   +1 more source

INVESTIGATION OF RHEOLOGICAL AND FILTRATION CHARACTERISTICS OF NIO NANOPARTICLES WATER-BASED DRILLING FLUID FOR HPHT DRILLING [PDF]

, 2023
The demand for drilling deeper wellbores to extract energy resources from deep reservoirs is growing rapidly. Drilling in formations where high temperatures and pressures are encountered is a challenging task. One important aspect of this challenge is to
Ismagul, Aigerim, Muratov, Alinur
core  

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

Advanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir, Muhammad A. Khalid, Manish Chauhan, Pietro Valdastri, James H. Chandler   +4 more
wiley   +1 more source

An experimental study to evaluate the use of oil to prevent differential stuck pipe in Nahr Umr oil field

Iraqi Journal of Chemical and Petroleum Engineering
   Differential pipe sticking (DSP) is a main challenge when using water-based drilling fluids developed with bentonite clay. This study employed a Fann VG meter, a self-fabricated tester, and a stickance tester to examine the effect of oil on water ...
Karrar Talib Alhisnawy, Ayad A. Alhaleem A. Alrazzaq, Hisham Ben Mahmud   +2 more
doaj   +1 more source

A Study of the Performance of Nanomaterials on Water Base Drilling Fluid

Journal of Petroleum Research and Studies, 2019
Abstract: This study is an attempt to investigate the effect of nanomaterials on the water base drilling mud properties. Two types of nano materials were investigated, are Multi Walled Carbone Nano Tube (MWCNT) and nano silicon oxide (SiO2).The investigated properties of drilling mud with the rheological properties (Plastic viscosity, yield point,
Dr. Hassan A. Abdul Hussien, Sarah Hakem Hamza   +1 more
openaire   +2 more sources

Magnetic Micro‐ and Nanorobots for Precision Thrombolysis: Design Strategies and Translational Challenges

Advanced Robotics Research, EarlyView.
Micro‐ and nanorobots for targeted thrombolysis. This perspective elaborates on the clinical indication of blood clot disorders and current limitations for treatment. As a novel, alternative solution, micro‐ and nanorobots can be used to treat and break down thrombi.
Joshua M. Mesfin, Yimo Yan, Nikola Cesarovic, Simone Schuerle   +3 more
wiley   +1 more source

Technical Feasibility Study of Autonomous Field Robot‐Based on‐the‐go Assessment of Soil Nutrients Using Ion‐Sensitive Field‐Effect Transistors

Advanced Robotics Research, EarlyView.
Autonomous field robots equipped with ISFET‐based sensors enable rapid, spatially resolved soil nutrient analysis directly in the field. An automated system based on the BoniRob platform is presented for standardized on‐site extraction and measurement of key macronutrients and soil pH.
Vadim Riedel, Stefan Hinck, Edgar Peiter, Arno Ruckelshausen   +3 more
wiley   +1 more source

Site U1335 [PDF]

, 2010
Integrated Ocean Drilling Program (IODP) Site U1335 (5°18.735?N, 126°17.002?W; 4327.5 meters below sea level [mbsl]) (Fig. F1; Table T1) is located in the central area drilled during the Pacific Equatorial Age Transect (PEAT) program (IODP Expedition 320/
Raffi, Isabella, null null, Klaus, Adam, Pälike, Heiko, Gamage, Kusali, Lyle, Mitchell, Nishi, Hiroshi   +6 more
core   +1 more source

Magnetically Actuated Microrobot for Drug Delivery: Current Progress and Challenges

Advanced Robotics Research, EarlyView.
Magnetically actuated microrobots are reshaping targeted drug delivery through wireless propulsion, programmable materials, and localized therapeutic release. This review examines how fabrication, body material selection, structural architecture, loading mechanisms, and imaging‐guided control converge to enable microrobotic therapies while identifying ...
Yang Yang, David J. Cappelleri
wiley   +1 more source

Numerical Simulation of NMR T2 Responses in Tight Gas Reservoirs with Drilling Fluid Invasion

Cejing jishu
Nuclear magnetic resonance (NMR) technology, detecting the relaxation decay signals of hydrogen nuclei in pore fluids, provides critical information about reservoir pore fluids, which has been widely applied in exploration and development of the ...
WAN Qiaosheng, WANG Yuexiang, PAN Keyu, MA Chao, PENG Xiao, WANG Tuofu, PENG Tingting, GUO Jiangfeng   +7 more
doaj   +1 more source