Experimental Study of Gas Rise Velocity and Its Effect on Bottomhole Pressure in a Vertical Well

1991 ◽  
Author(s):  
P. Skalle ◽  
A.L. Podio ◽  
J. Tronvoll
Keyword(s):  
Experimental Study ◽  
Rise Velocity ◽  
Vertical Well ◽  
Bottomhole Pressure

Experimental Study of Bubble Motion in Mercury With and Without a Magnetic Field

1977 ◽  
Vol 99 (3) ◽  
pp. 404-410 ◽  
Author(s):  
Y. Mori ◽  
K. Hijikata ◽  
I. Kuriyama
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Experimental Results ◽  
New Method ◽  
Single Bubble ◽  
Rise Velocity ◽  
Bubble Motion ◽  
Spherical Cap ◽  
Equivalent Radius ◽  
Bubble Rising

The behavior and hydrodynamical performance of a single bubble rising through mercury with and without magnetic field has been studied experimentally. A new method to measure the rise velocity and the shape of bubble with an electrical triple probe is proposed. When there is no magnetic field, a bubble changes its shape from spherical to elliptic and then to a spherical cap shape, as its equivalent radius Rm changes from 0.1 to 3 mm. The experimental results are found to agree well with the theories reported so far. In the case of a magnetic field, it is found that the effect of intensity of magnetic field B on the rise velocity depends largely on the radius of a bubble. When Rm = 3 mm, the rise velocity decreases monotonically with the increase of B. However, when Rm = 1 mm, the rise velocity increases once but it then starts to decrease afterwards with the increase of B.

An experimental study examining the relationship between bubble shape and rise velocity

2013 ◽  
Vol 98 ◽  
pp. 7-11 ◽  
Author(s):  
M. Maldonado ◽  
J.J. Quinn ◽  
C.O. Gomez ◽  
J.A. Finch
Keyword(s):  
Experimental Study ◽  
Bubble Shape ◽  
Rise Velocity ◽  
The Relationship

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

An Experimental Study of Some Properties of Stuttered Words

1962 ◽  
Vol 5 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Bruce Quarrington ◽  
Jerome Conway ◽  
Nathan Siegel
Keyword(s):  
Experimental Study

Experimental study of total body washout employing extracorporeal circulation and hypothermia

1974 ◽  
Vol 126 (2) ◽  
pp. 243-248
Author(s):  
A WAKABAYASHI ◽  
T KUBO ◽  
K CHARNEY ◽  
Y NAKAMURA ◽  
J CONNOLLY
Keyword(s):  
Experimental Study ◽  
Extracorporeal Circulation ◽  
Total Body

Gastric Freezing: An Experimental Study

1963 ◽  
Vol 45 (3) ◽  
pp. 374-383 ◽  
Author(s):  
Donald C. McIlrath ◽  
George A. Hallenbeck ◽  
Hubert A. Allen ◽  
Charles V. Mann ◽  
Edward J. Baldes ◽  
...  
Keyword(s):  
Experimental Study
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