scholarly journals Ferrocyanide Safety Program: Data interpretation report for tank 241-T-107 core samples

1994 ◽  
Author(s):  
L.M. Sasaki ◽  
B.D. Valenzuela
SPE Journal ◽  
2012 ◽  
Vol 17 (03) ◽  
pp. 717-726 ◽  
Author(s):  
F.. Civan ◽  
C.S.. S. Rai ◽  
C.H.. H. Sondergeld

Summary A model-assisted analysis is presented of pressure-pulse-transmission data obtained under different pressure conditions with core plugs of shale-gas formations. Applications and validations for steady-state and transient-state laboratory tests are provided. Best-estimate values of the intrinsic permeability and tortuosity at a reference condition and the Langmuir volume and pressure are determined by matching the solution of a modified Darcy model to several pressure-pulse-transmission flow tests with core samples simultaneously. The data-interpretation model considers the prevailing characteristics of the apparent permeability under the various flow regimes involving gas flow through extremely low-permeability core samples. Further, the present fully pressure-dependent shale-and gas-property formulation allows for model-assisted extrapolation from the reference conditions to field conditions once the unknown model parameters have been estimated under laboratory conditions. The improved method provides a better match to the measurements of the pressure tests than previous models, which assume only Darcy flow.


1993 ◽  
Author(s):  
J.W. Buck ◽  
C.M. Anderson ◽  
B.A. Pulsipher ◽  
J.J. Toth ◽  
P.J. Turner ◽  
...  

Author(s):  
H.A. Cohen ◽  
T.W. Jeng ◽  
W. Chiu

This tutorial will discuss the methodology of low dose electron diffraction and imaging of crystalline biological objects, the problems of data interpretation for two-dimensional projected density maps of glucose embedded protein crystals, the factors to be considered in combining tilt data from three-dimensional crystals, and finally, the prospects of achieving a high resolution three-dimensional density map of a biological crystal. This methodology will be illustrated using two proteins under investigation in our laboratory, the T4 DNA helix destabilizing protein gp32*I and the crotoxin complex crystal.


2005 ◽  
Vol 36 (1) ◽  
pp. 43
Author(s):  
ELIZABETH MECHCATIE
Keyword(s):  

2012 ◽  
Vol 5 (10) ◽  
pp. 28-29
Author(s):  
SHARON WORCESTER

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