Results 101 to 110 of about 53,263 (253)

Composite Coiled Tubing for Extended Reach in Horizontal Oil Wells

open access: yes, 2017
Conventional steel coiled tubing cannot reach along the entire length of very long horizontal oil wells. A lighter and more buoyant coiled tube is made possible using composite materials.
Berggreen, Christian   +7 more
core   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

open access: yesAdvanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su   +13 more
wiley   +1 more source

Research on the Behavior of Coiled Tubing Running Based on Experiment

open access: yesShiyou jixie, 2018
The coiled tubing is subject to complex forces in downhole condition. The loads like gravity, liquid resistance, bending moment and torque, and environmental factors such as temperature and pressure make the coiled tubing prone to buckling during running.
Qin Hua   +5 more
doaj  

Spoolable Coiled Tubing Spears: Recovering Subsea Wells After Emergency Shutdowns

open access: yes, 2011
A UK North Sea operator presented a challenging opportunity for the development of a contingency recovery system to be designed for deployment from an intervention vessel.
G.. Kelbie, C.. Guidry, A.. MacDonald
core   +1 more source

Hyperpolarization of [1‐13C]Ketoisocaproate‐d2 by Reversible Exchange with Parahydrogen Enables Profiling of Branched‐Chain‐Amino‐Acid Metabolism in Cellulo and in Vivo

open access: yesAdvanced Science, EarlyView.
We report the fast generation of biocompatible solutions of highly 13C‐hyperpolarized (≈11%) partially‐deuterated ketoisocaproate within <6 min using spin‐lock‐induced crossing and reversible exchange with parahydrogen (SLIC‐SABRE). This enables rapid detection of branched‐chain‐amino‐acid transferase 1 (BCAT1) protein expression and investigation of ...
Stefan Petersen   +18 more
wiley   +1 more source

Effects of Buckled Tubing on Coiled Tubing Passibility

open access: yes, 2017
Many coiled tubing(CT) operations involve passage through the production tubing. However, due to the adverse wellbore trajectory or tubing geometries, especially in helically buckled tubing, the CT operations are still encountering various bottlenecks ...
Deli Gao, Xing Qin
core   +1 more source

A Machine Vision‐Guided Microphysiological Platform With Automated Microfluidics Enables Longitudinal Biomarker Monitoring and Emulation of Translationally Relevant Exposure Scenarios

open access: yesAdvanced Science, EarlyView.
A pneumatically actuated multi‐tissue microphysiological system is integrated with AI‐based machine vision and automatic sampling and replenishment systems. The platform allows for the emulation of translationally relevant long‐term pharmacokinetic exposure scenarios for multiple weeks while enabling longitudinal monitoring of response biomarkers ...
Jibbe Keulen   +15 more
wiley   +1 more source

A Universal Protein Ladder for Standardization of Diverse FRET Assays

open access: yesAdvanced Science, EarlyView.
Translating FRET measurements from in vitro to intracellular environments requires universal benchmarks. We present a modular protein ladder using TPR motifs to harmonize data across diverse platforms. This predictable calibration curve bridges single molecule FRET measurements, with cell based measurements including FLIM‐FRET.
Evelyn R. Smith   +5 more
wiley   +1 more source

Application of E-line Coiled Tubing Drilling System in Sidetracking Horizontal Wells

open access: yesShiyou jixie, 2018
The development history of coiled tubing drilling was introduced, which mainly focused on the application of the coiled tubing drilling system in sidetracking horizontal wells and the important role of key tools.
Liu Shoujun   +4 more
doaj  

Coiled tubing in an inclined wellbore (side view).

open access: yes, 2016
Coiled tubing in an inclined wellbore (side view).
Biwei Fu (3129141)   +3 more
core   +1 more source

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