Engineering Aspects of Unconventional Oil and Gas Reservoirs ...

Low k Tight Gas Sands: Petrophysics/Permeability
Gas Flow
v y
v x
SPE 107954
Improved Permeability-Prediction Relations
for in Low Permeability Sands
F.A. Florence, Occidental Petroleum Corp.,
J.A. Rushing, Anadarko Petroleum Corp., K.E.
Newsham, Apache Corp., and T.A.
Blasingame, Texas A&M U.
a. Gas Slippage — Kundt, A. and Warburg, E.: "Über Reibung
und Wärmeleitung verdünnter Gase, " Poggendorfs Annalen
der Physik und Che-mie (1875), 155, 337.
[TAB]
b. Knudsen "microflow" model (Modified from Karniadakis and
Beskok, 2002).
k
k
a
128
1
2
15
-1
tan 4a0
1
k
p
m
0.4
a
1 a2
a1
a2
1
11/
a
c. Microflow model and correlation, "fully implicit" formulation.
StrataGen Engineering — 2011 Workshop
Stimulation of Unconventional Oil and Natural Gas Liquid Reservoirs — 27 April 2011
Engineering Aspects of Unconventional Oil and Gas Reservoirs
Dilhan Ilk (DeGolyer & MacNaughton)/T.A. Blasingame (Texas A&M U.)
a
0
1
k
p
m
0
4
1
k
p
m
a1
a2
Slide — 16/37