Results 11 to 20 of about 945,774 (394)

Advances in Laser Drilling of Structural Ceramics

open access: yesNanomaterials, 2022
The high-quality, high-efficiency micro-hole drilling of structural ceramics to improve the thermal conductivity of hot-end parts or achieve high-density electronic packaging is still a technical challenge for conventional processing techniques. Recently,
Xianshi Jia   +4 more
semanticscholar   +1 more source

Drilling and completion technologies of coalbed methane exploitation: an overview

open access: yesInternational Journal of Coal Science & Technology, 2022
Coalbed methane (CBM) drilling and completion technologies (DCTs) are significant basis for achieving efficient CBM exploration and exploitation. Characteristics of CBM reservoirs vary in different regions around the world, thereby, it is crucial to ...
Tianshou Ma   +3 more
semanticscholar   +1 more source

Advanced developments in environmentally friendly lubricants for water-based drilling fluid: a review

open access: yesRSC Advances, 2022
The problem of high friction and high torque is one of the most troublesome problems for engineers in extended reach wells and long horizontal wells.
Xiangyang Zhao   +4 more
semanticscholar   +1 more source

Study on selective plugging characteristics and oil displacement mechanism of microsphere in porous media [PDF]

open access: yesMATEC Web of Conferences, 2022
Microspheres are widely used as profile control and water plugging products at present. However, the current research on microspheres is mainly focused on oil displacement experiments.
Yuan Bo   +7 more
doaj   +1 more source

Utilization of Eco-Friendly Waste Generated Nanomaterials in Water-Based Drilling Fluids; State of the Art Review

open access: yesMaterials, 2021
An important aspect of hydrocarbon drilling is the usage of drilling fluids, which remove drill cuttings and stabilize the wellbore to provide better filtration.
Rabia Ikram   +3 more
semanticscholar   +1 more source

Relationship between rock uniaxial compressive strength and digital core drilling parameters and its forecast method

open access: yesInternational Journal of Coal Science & Technology, 2021
The rock uniaxial compressive strength (UCS) is the basic parameter for support designs in underground engineering. In particular, the rock UCS should be obtained rapidly for underground engineering with complex geological conditions, such as soft rock ...
Hongke Gao   +5 more
semanticscholar   +1 more source

Synthesis and performance of a small molecular quaternary ammonium salt inhibitors [PDF]

open access: yesE3S Web of Conferences, 2022
In this work, the quaternary ammonium salt small molecule inhibitors with melamine and sodium chloroacetate as raw materials was synthesized and it has certain inhibition on the hydration swelling of bentonite. Through linear swelling test, mud ball test
Jia Jun   +3 more
doaj   +1 more source

Real-Time Measurement of Drilling Fluid Rheological Properties: A Review

open access: yesItalian National Conference on Sensors, 2021
The accurate and frequent measurement of the drilling fluid’s rheological properties is essential for proper hydraulic management. It is also important for intelligent drilling, providing drilling fluid data to establish the optimization model of the ...
Naipeng Liu   +4 more
semanticscholar   +1 more source

Femtosecond Laser Drilling of Cylindrical Holes for Carbon Fiber-Reinforced Polymer (CFRP) Composites

open access: yesMolecules, 2021
Ultrafast laser drilling has been proven to effectively reduce the heat-affected zone (HAZ) of carbon fiber-reinforced polymer (CFRP) composites. However, previous research mainly focused on the effects of picosecond laser parameters on CFRP drilling ...
Hao Jiang   +3 more
semanticscholar   +1 more source

Investigation of Drilling Process Parameters of Palmyra Based Composite

open access: yesAdvances in Materials Science and Engineering, 2021
The drilling process is the most essential in the final assembly of the mechanical parts. Natural fiber based composites replace traditional materials due to their advantages, such as strength to weight ratio, availability, and environmental hazards.
A. Mohan Kumar   +7 more
semanticscholar   +1 more source

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