Pasir Perco.docx

4.5.2. Perhitungan Permeabilitas Gas : 𝑄. μ. 𝐿

K0,25 atm =

𝐴 . ∆𝑃 3,5 . 0,0178 . 2,5

=

4 . 0,25

= 0,15575 Darcy 𝑄. μ. 𝐿

K0,5 atm =

𝐴 . ∆𝑃 4,5 . 0,0178 . 2,5

=

4 . 0,5

= 0,100125 Darcy 𝑄. μ. 𝐿

K1 atm =

𝐴 . ∆𝑃 5,8 . 0,0178 . 2,5

=

4. 1

= 0,064525 Darcy Pm1 = Pm2 = Pm3 =

1 +P 2

=

1+P

2 1 + 0,5

=

2 1+P

2 1 +1

=

2

a = tan 𝛼 =

1 +0,25

2

Δy Δx

=

a

0,0815

c

−0,0903

b= =

K* = Ka [1 +

b ΔP

= 0,625 atm = 0,75 atm

= 1 atm

0,15575 + 0,100125 +0,064525 1,6 + 1,33 +1

= -0,90 ] = -0,0903 [1 +

−0,90 0,25

] = 0,234

Permeabilitas Air Q= K=

v t

=

50 cc 19 s

𝑄. μ. 𝐿 𝐴 . ∆𝑃

=

= 2,63 cm3/s 2,63 . 1 . 2,5 4. 1

= 1,64 Darcy

= 0,0815

Chart Title 0.18 0.16

y = 0.1504x - 0.0903 R² = 0.9666

Axis Title

0.14 0.12 0.1 0.08

Series1

0.06

Linear (Series1)

0.04 0.02 0 0

0.5

1

Axis Title

1.5

2