Average Gas-Oil Rel Perm

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InstructionsPrinted: August 31, 2014 10:12 PM

OBJECTIVES:

This application can be used to calculate average gas-oil relative permeability curapplication can also be used to re-normalize an existing relative permeability curvSgc, Krg@Sorg, Krog@Sg=0 and preserve the same general curve shape.

MAJORASSUMPTIONS- Krog is normalized between Sg = 0 and Sg = (1 - Sorg - Swir)- Krg is normalized the same way as Krog for the individual relative permeability- The final average Krg curve is re-normalized between Sg = Sgc_avg and Sg = (1- Individual rock curves are linearly interpolated from the de-normalized curves atwith the average rock curve.- User defined weighting factors are also normalized between 0 and 1 prior to mul


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es for use in the CHEARS or ECLIPSE simulator. Thise where you want to change end points such as Sorg,

urves.- Sorg_avg - Swir_avg)

the Sg values defined by the user and plotted along

tiplying the Kr values from individual curves.


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Gas-Oil Rel. Perm DataPrinted: August 31, 2014 10:12 PM

SampleID Sg Krg Krog Sgn Krgn Krogn

1 0.0000 0.0000 0.7981 0.0000 0.0000 1.0000

1 0.0200 0.0000 0.6640 0.0391 0.0000 0.8320

1 0.5120 0.1800 0.0000 1.0000 1.0000 0.0000

1 0.7900 0.4000 0.0000

1 1.0000 1.0000 0.0000


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SampleID Weighting factor Swir

1 1 0.21


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Comment


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Gas-Oil Rel. Perm End Pts.Printed: August 31, 2014 10:12 PM

SampleID Sgc Krog@Sg=0 Sorg Krg@Sorg Swir 1-Sorg-Swir

1 0.0000 0.7981 0.2780 0.1800 0.2100 0.5120

Average 0.0000 0.7981 0.2780 0.1800 0.2100 0.5120


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Weighting factor Comments

1


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0.0000

0.1000

0.2000

0.3000

0.4000

0.5000

0.6000

0.7000

0.8000

0.9000

1.0000

0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 0.900 1.000

Kr

Sgn

Normalized Kr

Krg_

Krog_

Krg_a

Krog_


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0.0000

0.1000

0.2000

0.3000

0.4000

0.5000

0.6000

0.7000

0.8000

0.9000

1.0000

0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 0.900 1.000

Kr

Sg

De-Normalized Rock Kr

Krg_ 1

Krog_

Krg_Av

Krog_A


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Gas-Oil Rel. Perm ResultsPrinted: August 31, 2014 10:12 PM

Normalized Curves:

Sgn Krg_ 1 Krog_ 1 Krg_avg Krog_avg0.000 0.0000 1.0000 0.0000 1.0000

0.100 0.0634 0.7792 0.0634 0.7792

0.200 0.1675 0.6926 0.1675 0.6926

0.300 0.2715 0.6061 0.2715 0.6061

0.400 0.3756 0.5195 0.3756 0.5195

0.500 0.4797 0.4329 0.4797 0.4329

0.600 0.5837 0.3463 0.5837 0.3463

0.700 0.6878 0.2597 0.6878 0.2597

0.800 0.7919 0.1732 0.7919 0.1732

0.900 0.8959 0.0866 0.8959 0.0866

1.000 1.0000 0.0000 1.0000 0.0000

Rock Curves: (Interpolated)

Sg Krg_ 1 Krog_ 1 Krg_Avg Krog_Avg

0.000 0.0000 0.7981 0.0000 0.7981

0.100 0.0293 0.5560 0.0293 0.5560

0.200 0.0659 0.4211 0.0659 0.4211

0.300 0.1024 0.2861 0.1024 0.2861

0.400 0.1390 0.1512 0.1390 0.1512

0.500 0.1756 0.0162 0.1756 0.0162

0.512 0.1800 0.0000 0.1800 0.0000

0.600 0.2496 0.0000 0.3279 0.0000

0.700 0.3288 0.0000 0.4959 0.0000

0.800 0.4286 0.0000 0.6639 0.0000

0.900 0.7143 0.0000 0.8320 0.0000

1.000 1.0000 0.0000 1.0000 0.0000


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Export Options:


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Kr CorrelationsPrinted: August 31, 2014 10:12 PM

Kr region CommentSgc 0.03

Sorg 0.2000

Krog at Sg = 0 0.856 Krow at Swir

Krg at Sg=1-Sorg-Swir 0.5000

gexp 2.00

ogexp 3.28

Swir 0.2300

1-Sorg-Swir 0.5700

Input Kr curves Calculated Kr curves

Sg Krg Krog Sg Krg calc. Krog calc.

0.0000 0.0000 0.7080 0.0000 0.0000 0.8560

0.1000 0.0168 0.3276 0.1000 0.0084 0.4544

0.1468 0.0353 0.2264 0.2000 0.0496 0.2071

0.2000 0.0657 0.1384 0.3000 0.1250 0.0736

0.3000 0.1696 0.0483 0.4000 0.2347 0.0161

0.4000 0.3432 0.0131 0.5000 0.3788 0.0009

0.4855 0.5512 0.0000 0.6000 0.5349 0.0000

0.5000 0.5638 0.0000 0.7000 0.6512 0.0000

0.6000 0.6511 0.0000 0.8000 0.7674 0.0000

0.6515 0.6960 0.0000 0.9000 0.8837 0.0000

0.7000 0.7383 0.0000 1.0000 1.0000 0.0000

0.8000 0.8255 0.0000

0.9000 0.9128 0.00001.0000 1.0000 0.0000


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0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0.00 0.20 0.40 0.60 0.80 1.00

Sg (fraction)

Relative Permeability Curves - Power Law fit

Krg calc.

Krog calc.

Krg

Krog

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0.00

Kr


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y = -1.8184x3+ 2.6051x2+ 0.2041x - 0.0288

R = 0.9879

y = -2.9757x3+ 5.8306x2- 3.5483x + 0.6632R = 0.9814

0.20 0.40 0.60 0.80 1.00Sw (fraction)

Relative Permeability Curves - Poly fit

Krg

Krog

Poly. (Krg)

Poly. (Krog)


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Rel. Perm DatabasePrinted: August 31, 2014 10:12 PM

SampleID Sw Krw Krow SampleID Swir

1 0.0000 0.0000 0.7300 1 0.23

1 0.0150 0.0018 0.6587 2 0.231 0.0700 0.0099 0.4488

1 0.1140 0.0255 0.3198

1 0.1690 0.0556 0.2083

1 0.2060 0.0837 0.1470

1 0.2690 0.1439 0.0723

1 0.3090 0.1920 0.0430

1 0.3500 0.2474 0.0242

1 0.3750 0.2851 0.0170

1 0.4060 0.3373 0.0109

1 0.4400 0.4054 0.0058

1 0.4750 0.4448 0.0041

1 0.4960 0.5362 0.00001 1.0000 1.0000 0.0000

2 0.0000 0.0000 0.6860

2 0.0150 0.0017 0.6072

2 0.0600 0.0053 0.4152

2 0.1000 0.0115 0.2902

2 0.1740 0.0338 0.1475

2 0.2210 0.0605 0.0982

2 0.2470 0.0846 0.0759

2 0.2630 0.1028 0.0652

2 0.3100 0.1692 0.0402

2 0.3600 0.2629 0.0228

2 0.3740 0.2994 0.0183

2 0.4070 0.3751 0.0116

2 0.4390 0.4686 0.0066

2 0.4580 0.5206 0.0047

2 0.4750 0.5662 0.0000

2 1.0000 1.0000 0.0000


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Comment

Sample data from Model Construction Workshop (204 md)

Sample data from Model Construction Workshop (246 md)


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PreferencesPrinted: August 31, 2014 10:12 PM

Selection Export Options3 1 GASOILPERM

2 NORMGASOILPERM

3 SGOF (Eclipse format)

NOTE: The entries on this worksheet are used in thYou can review all your previous selections here bumake your changes back on the original worksheet


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e controls of other worksheets.t it is recommended that you.

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Average Gas-Oil Rel Perm