Highly effective utilization of vinyl copolymer as filtrate reducer of water‐bentonite drilling fluid under ultrasonic oscillations

2021 ◽  
pp. 51831
Author(s):  
Wen‐Yu Guo ◽  
Bo Peng
Keyword(s):  
Drilling Fluid ◽  
Effective Utilization ◽  
Ultrasonic Oscillations ◽  
Highly Effective

scholarly journals Ultrasonic oscillations induced property development of water-bentonite suspension containing sulfonated wood coal

2021 ◽  
Vol 11 (5) ◽  
pp. 2179-2190
Author(s):  
Wen-Yu Guo ◽  
Bo Peng
Keyword(s):  
Drilling Fluid ◽  
Particle Diameter ◽  
Particle Size Analysis ◽  
Clay Particle ◽  
Size Analysis ◽  
Fluid Loss ◽  
Drilling Fluids ◽  
Ultrasonic Oscillations ◽  
Ultrasonic Time ◽  
Bentonite Suspension

AbstractDuring drilling fluid preparation, ultrasonic oscillations were introduced into water-bentonite suspension incorporating sulfonated wood coal (SMC) by a specially designed device. The influences of ultrasonic oscillations on fluid loss and rheological performances of the drilling fluid as well as mechanism of ultrasonic action were investigated. The experimental results showed that the filtrate volume decreased with the increase of ultrasonic time till a certain extent and then leveled off. In the presence of ultrasound, shorter time of 15 min and mild intensity of 250 W could lead to a satisfactory result in fluid loss properties, including the reasonable filtrate volume and thin and compact filter cakes. With increasing ultrasonic intensity, the fluid loss properties changed relatively little but various rheological data of the drilling fluids always increased. Adsorption tests through total organic carbon, infrared spectrum and thermogravimetic analyses as well as clay particle size analysis confirmed that as compared with the conventional agitation, ultrasound-assisted mud preparation could not only increase adsorbed amount of SMC on bentonite but also decrease average clay particle diameter attributed to acoustic cavitation. A plausible mechanism based on sonochemical thermodynamics is proposed to explain the improvement of the colloidal structure and performances of drilling fluid.

Highly effective utilization of ethylene tar for mesophase development via a molecular fractionation process

RSC Advances ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 796-804 ◽  
Author(s):  
Chuanzhang Ge ◽  
Haixiao Yang ◽  
Jitong Wang ◽  
Wenming Qiao ◽  
Donghui Long ◽  
...  
Keyword(s):  
High Purity ◽  
Vacuum Distillation ◽  
Carbon Materials ◽  
Distillation Process ◽  
Fractionation Process ◽  
Effective Utilization ◽  
Potential Market ◽  
Highly Effective ◽  
Utilization Potential ◽  
Molecular Fractionation

A facile vacuum distillation process is proposed for the fractionation of ethylene tar to realize its highly effective utilization. Potential market can be stimulated by the developing of high-purity chemicals and high value carbon materials.

Oral budenosid is highly effective in the treatment of collagenous colitis: A randomized, double-blind, placebo-controlled, multicenter trial

2001 ◽  
Vol 120 (5) ◽  
pp. A40-A40 ◽  
Author(s):  
S MIEHLKE ◽  
P HEYMER ◽  
T OCHSENKUEHN ◽  
E BAESTLEIN ◽  
G YARIAN ◽  
...  
Keyword(s):  
Collagenous Colitis ◽  
Multicenter Trial ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Highly Effective

Novel Drugs Highly Effective in Resistant HIV

2007 ◽  
Vol 38 (4) ◽  
pp. 9
Author(s):  
TIMOTHY F. KIRN
Keyword(s):  
Novel Drugs ◽  
Highly Effective

Panel discussion: Future challenges for the effective utilization of robotic assets in military environments

2010 ◽  
Author(s):  
A. William Evans ◽  
Michael J. Barnes ◽  
Keryl A. Cosenzo ◽  
Tal Oron-Gilad ◽  
Troy Kelley ◽  
...  
Keyword(s):  
Panel Discussion ◽  
Effective Utilization ◽  
Future Challenges

Downhole pressure gauge of drilling fluid

2020 ◽  
pp. 9-12
Author(s):  
V.N. Esaulenko ◽  
◽  
S.S. Malov ◽  
I.V. Pavlova ◽  
◽  
...  
Keyword(s):  
Drilling Fluid ◽  
Pressure Gauge
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