Results 41 to 50 of about 974,451 (233)
Optimization of Hole Cleaning In Iraqi Directional Oil Wells
Journal of Engineering, 2016 Efficient cuttings transport and hole cleaning are very important factors for obtaining an effective drilling operation. In an inclined and horizontal drilling, hole cleaning issue is a common and complex problem.
Ayad A. Al-Haleem Abd Al-Razzaq, Ass. Prof. Dr. +2 more
doaj +2 more sources
Horizontal directional drilling [PDF]
, 2015 Zapoczątkowana w latach 60. XX w. technologia przewiertów sterowanych (Horizontal Directional Drilling) początkowo stała się praktyczną alternatywą dla konwencjonalnych metod wykopowych.
Szruba, M.
core
Horizontal Directional Drilling
, 2021 Horizontal directional drilling (HDD) is a trenchless construction process for drilling boreholes and installing pipe without disturbing the surface and area under which the pipeline is needed.
New Jersey. Department of Environmental Protection. Science Advisory Board. Water Quality & Quantity Standing Committee
core
Configuration‐Encoded Cell Alignment by Light‐Gated Silicon Photovoltaic Microcell Arrays
Advanced Functional Materials, EarlyView.Light‐gated silicon photovoltaic microcells convert pulsed illumination into localized electrical cues. Arranging otherwise similar microcells into four‐lobed, six‐lobed, or circular patterns directs fibroblasts into corresponding local arrangements without wired stimulation.
Yifan Tao +7 more
wiley +1 more source
Action recognition method for mine kilometer directional drilling rig
Gong-kuang zidonghua, 2022 At present, the walking and drilling operations of the mine kilometer directional drilling rig are all realized by the manual operation of drillers. The intelligence level is low.
XIANG Xueyi +5 more
doaj +1 more source
Biohybrid Crawling Robot With Spiral‐Spring Backbone and Inclined Legs for Enhanced Locomotion
Advanced Materials, EarlyView.We present a biohybrid crawling robot integrating a muscle ring with a flexible skeleton combining two complementary structural elements. The spiral‐spring backbone enables large‐amplitude bending without compromising axial stability, while outward‐inclined legs with unequal front–rear lengths effectively convert deformation into directional strides ...
Tomohiro Morita +2 more
wiley +1 more source
, 1999 The Environmental Measurement-While-Drilling (EMWD) system and Horizontal Directional Drilling (HDD) were successfully demonstrated at the Mock Tank Leak Simulation Site and the Drilling Technology Test Site, Hanford, Washington.
Williams, C. V. +6 more
core +1 more source
XeraBorg: Neural Control of Tail‐Flick Escape for Backward Propulsion in Cyborg Crayfish
Advanced Robotics Research, EarlyView.This work presents the first controlled tail‐flick propulsion method for the cyborg Cherax quadricarinatus. Comprehensive experiments establish a foundational framework for using the crayfish's natural escape mechanism as a locomotion strategy, expanding its potential as an underwater and amphibious mobile robot.
H. Nhan Le +7 more
wiley +1 more source
, 2018 Schematic diagram of the fluid kinematics of a jet actuator in horizontal directional well drilling with hydro-hammers.
Jiang-fu He (5227361) +3 more
core +1 more source
Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices
Advanced Science, EarlyView.Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang +14 more
wiley +1 more source