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Property

Symbols

Value

Unit

Comment


Summary Date16.03.2004
Geology

Deposit structureAnticline

Rock typeCarbonate Rockmostly packstone

Geological periodCretaceous

Depositional environmentDeltaic / Tidal
Depths

Surface ElevationZalt125m (above sea) 

Average Formation Top

Ztop

1,457

m TVDSS



Gas-Oil ContactGOC1,460m TVDSS

Oil-Water ContactOWC1,475m TVDSS

DatumZdat1,475m TVDSS= OWC
Thicknesses

Average formation thicknessH30m

Net-To-Gross ThicknessNTG0.56


Oil column thickness

ho

15

m

field average


Gas column thicknesshg2mfield average

Water column thicknesshw0mfield average
Areas

Net Oil Pay AreaAO20106 m2

Net Gas Pay AreaAG3106 m2
Volumes

Total pore volumeVΦ> 300106 m3

Oil pore volumeVΦO180106 m3

Gas pore volumeVΦG20106 m3

Aquifer volumeVaqf> 100106 m3
Pressure & Temperature

Initial reservoir pressure

Pi

14,300

kPa

@ Datum


Initial reservoir temperatureTi67°C@ Datum
Porosity and Shaliness

Effective formation porosity

ϕe

25

p.u. (%)

median average


ShalinessVsh4%
Compressibility

Pore compressibilitycr1.0GPa-1

Total compressibility in oil area

cto

2.1

GPa-1



Total compressibility in gas areactg71GPa-1

Total compressibility in aquiferctw1.45GPa-1
Permeability

Absolute permeabilityka150mdmedian average

Vertical-to-horizontal perm ratiokv/kh0.1


Oil relative permeabilitykro0.8


Gas relative permeabilitykrg0.9


Water relative permeabilitykrw0.3

Mobility

Relative oil mobilityMro0.2cp-1kroo at maximum

Relative gas mobilityMrg58cp-1krgg at maximum

Relative water mobilityMrw0.6cp-1krww at maximum
Saturation

initial water saturationswi0.21


Residual oil saturation to watersorw0.15


Residual oil saturation to gassorg0.05


Residual gas saturation to water sweepsgrw0.2

Displacement

Water→Oil Displacement EfficiencyEDow0.81


GasOil Displacement EfficiencyEDog0.94

See also


Petroleum Industry (Oil & Gas Industry) / Petroleum Asset / Petroleum Asset Summary / Field Summary



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