Some routine and special core analysis

1. A New Approach to Hydraulic Flow
Unit Determination and its Application
in Prediction of Petrophysical
Properties of Hydrocarbon Reservoirs
By:
Mohammad Izadi
Supervisor: Dr Ali Ghalambor

2. Contents:
1) Quick Review
2) Experimental Work
3) Future Work

3. Quick Review:
- Reservoir Characterization
- Rock Typing
- Hydraulic Flow Unit

4. Quick Review (Cont.):
- Mathematical models:
1 1
(1 ) (1 ). gr
w s V
k
S F S
φ
φ φτ
× = ×
− −
3
2
2 2 2
1
(1 )
(1 )gr
w
s V
k S
F S
φ
τ φ
= × × −
−
Porosity-permeability relationship:
Approach 1:
Approach 2:
(1 )1
(1 ). gr
w
s V
Sk
F S
φ
φ φτ
−
= ×
−

5. Experimental Work:
Routine and Special
Core Analysis
Berea Sandstone
- exposures near Berea, Cuyahoga County, Ohio
-Traditionally, Mississippian age but recently, Late Devonian age.
-The Berea formed when sand was carried by streams into the
Ohio sea from the Canadian Shield to the north and from the
Catskill Delta to the east.
-Small grain and composed of quartz sand
held together by silica.
Wampakoneta Courthouse, www.ohiohistorycentral.org

6. 1) Selection of Sandstone
Blocks in the lab
2) Cutting plugs
with 1 inch x 1 inch
3) Drying 4) Weighting and labeling
Experimental Work (Cont.):

7. 5) Measuring porosity
Boyles Law: 1 1 2 2PV PV=
Porosity Distribution
0.00
5.00
10.00
15.00
20.00
25.00
30.00
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Samples
Porosity,%

8. 6) Measuring permeability (liquid)
14700 QL
k
A P
µ
=
∆
Permeability Distribution
0
50
100
150
200
250
300
350
400
450
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Samples
Permeability,md

9. 7) Measuring capillary pressure
2 cos
c non wetting wettingP P P
r
σ θ
−= − =
Capillary Pressure Distribution
0
5
10
15
20
25
0 10 20 30 40 50 60 70 80 90 100
Sw, %
Pc,psi

10. 8) XRD Test
Core Laboratories. Inc
Samples are divided into:
- No lamination,
-Two layers lamination,
- Shale
Samples Quartz, % Clay, % Others, %
sample 1 86.00 8.00 6.00
sample 2 87.00 8.00 5.00
sample 3 41.00 37.00 22.00
sample 4 97.00 3.00 0.00
sample 5 96.00 3.00 1.00
sample 6 95.00 4.00 1.00
sample 7 59.00 6.00
35
(calcit
e)

11. Future Work
1) Interpreting experimental data
2) Comparison of the two models
3) Field data evaluation

12. Thank you!
Questions??????