MECHANICALLY DEGRADABLE POLYMERS FOR WELLBORE WORK FLUID
申请人:Halliburton Energy Services Inc.
公开号:EP3486297A1
公开(公告)日:2019-05-22
A composition including a wellbore work fluid and a polymer having mechanically labile chemical bonds is injected downhole, and combines with fluid present downhole to yield a composite fluid. Mechanical energy (e.g., ultrasonic energy) is provided to the composite fluid downhole to cleave the mechanically labile chemical bonds in the polymer. The polymer may be used as a viscosifier, friction reducer, or fluid loss additive. Cleaving the mechanically labile chemical bonds with mechanical energy allows precise degradation downhole.
MECHANICALLY DEGRADABLE POLYMERS FOR WELLBORE WORK FLUID APPLICATIONS
申请人:Halliburton Energy Services, Inc.
公开号:EP2970749A1
公开(公告)日:2016-01-20
US20140262228A1
申请人:——
公开号:US20140262228A1
公开(公告)日:2014-09-18
[EN] MECHANICALLY DEGRADABLE POLYMERS FOR WELLBORE WORK FLUID APPLICATIONS<br/>[FR] POLYMÈRES MÉCANIQUEMENT DÉGRADABLES DESTINÉS À DES APPLICATIONS DE FLUIDE ACTIF DE PUITS DE FORAGE
申请人:HALLIBURTON ENERGY SERV INC
公开号:WO2014164022A1
公开(公告)日:2014-10-09
A composition including a wellbore work fluid and a polymer having mechanically labile chemical bonds is injected downhole, and combines with fluid present downhole to yield a composite fluid. Mechanical energy (e.g., ultrasonic energy) is provided to the composite fluid downhole to cleave the mechanically labile chemical bonds in the polymer. The polymer may be used as a viscosifier, friction reducer, or fluid loss additive. Cleaving the mechanically labile chemical bonds with mechanical energy allows precise degradation downhole.
Stabilized Copper(I) Oxide Nanoparticles Catalyze Azide-Alkyne Click Reactions in Water
作者:Zhenfang Zhang、Changming Dong、Cuihong Yang、Di Hu、Jing Long、Ling Wang、He Li、Yue Chen、Deling Kong
DOI:10.1002/adsc.201000206
日期:——
5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide (MTT) assay and its catalytic efficiency for azide‐alkyne click reactions was studied in water and organic solvents at physiological temperatures. Our results indicate that Cu2O‐NP is more efficient in catalytic reactions in water for both aliphatic and aromatic azides and alkynes and less toxic than the commonly used CuSO4/reductant catalyst systems