elver-1 petrophysical summary interpretation based on memory lwd data at td 12 jan. 2009

Elver-1 Petrophysical Summary

Interpretation based on Memory LWD Data at TD

12 Jan. 2009

Elver-1

0 200GR

6 16Cali

6 16BITSIZE

1.950 2.950Dens

45 -15NPHI140 40DT 0.20 20.0Res_D

0.20 20.0Res_M

0.20 20.0RES_RING

0 200GR

MD1:11000

METRESMD

TVD1:11000

METRESTVD

GURNARDVOLADOR

CAMP_A_SILT

CAMP_B

37003800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

4900

5000

5100

5200

5300

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

Small Scale plot over all zones of interest

1,2 Two sandy packages separated by -3- thick silty interval . The upper sands have been divided into four reservoir units based on log character. The sand at TD is treated as a single unit

1

2

3

Elver-1 Memory Data Composite Logs over reservoir

Small scale plot from top Gurnard to Campanian Siltstones• Caliper and density correction show hole is generally in good

condition. Log quality is good• Sands show typical density-neutron responses. Densities of

2.15g/c3 show porosities are high.• Resistivities overlay and are uniformly low in sands (1 Ohmm).

Slightly higher in claystones (3-4Ohmm).

Elver-1Gamma Resistivity Nuclear Sonic TVDss

0 200GR_RT

6 16BITSIZE

0 200GRMA

6 16UCAV

0.20 2000RES_RING

0.20 2000P16H

0.20 2000P40H

0.20 2000A40H

0 20PEB

-0.750 0.250DRHB

0.450 -0.150BPHI

1.950 2.950ROBB

140 40DTCO

MD1:4999METRES

MD

TVD1:4999METRES

TVD

GURNARD

VOLADOR

CAMP_A_SILT

3700

3800

3900

4000

4100

4200

4300

4400

2800

2900

3000

3100

3200

1

2

3

Elver-1 Memory Data Composite Logs at TD

Larger scale plot showing Campanian-B sand at TD.Log quality good: caliper shows good hole conditions.1. Memory GR drops to zero2. Resistivity curves overlay in sand and are low (1Ohmm). In the overlaying

siltstone some separation is seen between phase (red), attenuation (blue) and ‘at-bit’ black. This is a result of the measurement physics and not invasion.

3. Classic sandstone response on density-neutron. Density correction small


6 16BITSIZE

0 200GRMA

6 16UCAV

0.20 20.0RES_RING

0.20 20.0P16H

0.20 20.0P40H

0.20 20.0P34H

0.20 20.0A40H

0 20PEB

-0.750 0.250DRHB

0.450 -0.150BPHI

1.950 2.950ROBB

140 40DTCO

MD1:500METRES

MD

TVD1:500METRES

TVD

CAMP_B

5200

5186

5225

5250

5261

3850

3875

3900

1

2

3

Elver-1 Memory Data Composite Logs from 4175 – 4325m illustrating log responses in upper sandy interval.

Log quality good: caliper shows good hole conditions.1. Generally high GR (minimum of 60) probably caused by KCl mud.2. Very high GR (185api) but density-neutron still showing sandstone like

separation.3. Relatively high and varying Gamma but resistivity and density-neutron

suggest clean sand with uniform porosity


6 16BITSIZE

0 200GRMA

6 16UCAV

0.20 20.0RES_RING

0.20 20.0P16H

0.20 20.0P40H

0.20 20.0P34H

0.20 20.0A40H

0 20PEB

-0.750 0.250DRHB

0.450 -0.150BPHI

1.950 2.950ROBB

140 40DTCO

MD1:1000METRES

MD

TVD1:1000METRES

TVD4175

4200

4225

4250

4275

4300

4322

3125

3150

3175

3200

1

2

3

Elver-1 Interpreted memory Logs at Top Latrobe (3760-3825m)

Elver-1Gamma Saturation Porosity CPI TVDSS

Net/Pay

6 16BITSIZE [in]

0 200GRMA [gapi]

6 16UCAV

1 0SXO [fr]

1 0SW [fr]0.50 0VW

0.50 0PHIE

0.50 0PHIE_DEN_2

0.50 0PHIE_SON_3

1 0VW [fr]

1 0VXO [fr]

1 0PHIE [fr]

0 1VCL [fr]

0 1VCL_GR

0 1VCL_DN

Data Error

MD1:500METRES

MD

TVD1:500METRES

TVD

3775

3759

3800

3825

2825

2850

2875

GURNARD

VOLADOR


Net/Pay

6 16BITSIZE [in]

0 200GRMA [gapi]

6 16UCAV

1 0SXO [fr]

1 0SW [fr]0.50 0VW

0.50 0PHIE

0.50 0PHIE_DEN_2

0.50 0PHIE_SON_3

1 0VW [fr]

1 0VXO [fr]

1 0PHIE [fr]

0 1VCL [fr]

0 1VCL_GR

0 1VCL_DN

Data Error

MD1:2000METRES

MD

TVD1:2000METRES

TVD3825

3850

3875

3900

3925

3950

3975

4000

4025

4050

4075

4100

2875

2900

2925

2950

2975

3000

3025

3050

VOLADOR

Elver-1 Interpreted memory Logs at Top Latrobe (3825-4100m)

Excellent quality sand packages separated by thin silts and shales.

Elver-1 Interpreted memory Logs at TD: Campanian-B


Net/Pay

6 16BITSIZE [in]

0 200GRMA [gapi]

6 16UCAV

1 0SXO [fr]

1 0SW [fr]0.50 0VW

0.50 0PHIE

0.50 0PHIE_DEN_2

0.50 0PHIE_SON_3

1 0VW [fr]

1 0VXO [fr]

1 0PHIE [fr]

0 1VCL [fr]

0 1VCL_GR

0 1VCL_DN

Data Error

MD1:500METRES

MD

TVD1:500METRES

TVD

5200

5184

5225

5250

3850

3875

3900

CAMP_B

1

Notes:1. Data gaps counted as non-reservoir in averages (in this case caused by missing neutron data.

Elver -1 Averages (to top of thick siltstone)

Formation Gross Net Avg Sand Net Avg HC AvgNo: / Interval / Zone From To Vclay Phi Sw Interval Sand Porosity HC Pay Porosity Sw

metres metres % % % metres metres percent metres percent percent

1 gurnard 2,826.4 2,866.5 50 % 10 % 70 % 40.1 38.1 26.1 % - 0.0 % 0.0 %2 A1 2,866.5 2,982.3 50 % 10 % 70 % 115.8 82.1 20.9 % - 0.0 % 0.0 %3 A2 2,982.3 3,188.3 50 % 10 % 70 % 206.0 183.2 24.1 % - 0.0 % 0.0 %4 A3 3,188.3 3,223.6 50 % 10 % 70 % 35.3 19.9 20.9 % - 0.0 % 0.0 %5 Formation5 9,999.0 9,999.0 50 % 10 % 70 % - - 0.0 % - 0.0 % 0.0 %6 Formation6 9,999.0 9,999.0 50 % 10 % 70 % - - 0.0 % - 0.0 % 0.0 %

Total / Averages 397.2 323.4 23.3 % - 0.0 % 0.0 %Net/Gross Ratio 81.4 % 0.0 %

Log Analysis Summary for Elver-1

Depth - TVD SS Log Cutoffs

Formation Gross Net Avg Sand Net Avg HC AvgNo: / Interval / Zone From To Vclay Phi Sw Interval Sand Porosity HC Pay Porosity Sw

metres metres % % % metres metres percent metres percent percent

1 silt 3,849.5 3,866.9 50 % 10 % 70 % 17.4 - 0.0 % - 0.0 % 0.0 %2 B-sand 3,866.9 3,905.0 50 % 10 % 70 % 38.1 36.1 22.7 % - 0.0 % 0.0 %3 Formation3 9,999.0 9,999.0 50 % 10 % 70 % - - 0.0 % - 0.0 % 0.0 %4 Formation4 9,999.0 9,999.0 50 % 10 % 70 % - - 0.0 % - 0.0 % 0.0 %5 Formation5 9,999.0 9,999.0 50 % 10 % 70 % - - 0.0 % - 0.0 % 0.0 %6 Formation6 9,999.0 9,999.0 50 % 10 % 70 % - - 0.0 % - 0.0 % 0.0 %


Log Analysis Summary for Elver-1

Depth - TVD SS Log Cutoffs

Elver -1 Averages (Sand at TD)

N.B Gaps in the interpretation caused by missing log values are counted as non-sand

Gross Net Avg Sand Net Avg HC AvgFrom To Interval Sand Porosity HC Pay Porosity Sw

metres metres metres metres percent metres percent percent

2,826.4 2,827.0 0.6 0.3 25.2 % - 0.0 % 0.0 %2,827.0 2,828.0 1.0 1.0 22.4 % - 0.0 % 0.0 %2,828.0 2,829.0 1.0 - 0.5 % - 0.0 % 0.0 %2,829.0 2,830.0 1.0 0.6 19.8 % - 0.0 % 0.0 %2,830.0 2,831.0 1.0 1.0 25.7 % - 0.0 % 0.0 %2,831.0 2,832.0 1.0 1.0 30.6 % - 0.0 % 0.0 %2,832.0 2,833.0 1.0 1.0 27.3 % - 0.0 % 0.0 %2,833.0 2,834.0 1.0 1.0 29.8 % - 0.0 % 0.0 %2,834.0 2,835.0 1.0 1.0 22.5 % - 0.0 % 0.0 %2,835.0 2,836.0 1.0 1.0 24.7 % - 0.0 % 0.0 %2,836.0 2,837.0 1.0 1.0 26.2 % - 0.0 % 0.0 %2,837.0 2,838.0 1.0 1.0 24.3 % - 0.0 % 0.0 %2,838.0 2,839.0 1.0 1.0 23.6 % - 0.0 % 0.0 %2,839.0 2,840.0 1.0 1.0 23.4 % - 0.0 % 0.0 %2,840.0 2,841.0 1.0 1.0 26.2 % - 0.0 % 0.0 %2,841.0 2,842.0 1.0 0.7 34.9 % - 0.0 % 0.0 %2,842.0 2,843.0 1.0 1.0 24.4 % - 0.0 % 0.0 %2,843.0 2,844.0 1.0 1.0 25.7 % - 0.0 % 0.0 %2,844.0 2,845.0 1.0 1.0 28.5 % - 0.0 % 0.0 %2,845.0 2,846.0 1.0 1.0 28.6 % - 0.0 % 0.0 %2,846.0 2,847.0 1.0 1.0 24.4 % - 0.0 % 0.0 %2,847.0 2,848.0 1.0 1.0 25.1 % - 0.0 % 0.0 %2,848.0 2,849.0 1.0 1.0 25.8 % - 0.0 % 0.0 %2,849.0 2,850.0 1.0 1.0 24.8 % - 0.0 % 0.0 %2,850.0 2,851.0 1.0 1.0 24.1 % - 0.0 % 0.0 %2,851.0 2,852.0 1.0 1.0 25.5 % - 0.0 % 0.0 %2,852.0 2,853.0 1.0 1.0 25.5 % - 0.0 % 0.0 %2,853.0 2,854.0 1.0 1.0 25.3 % - 0.0 % 0.0 %2,854.0 2,855.0 1.0 1.0 25.5 % - 0.0 % 0.0 %2,855.0 2,856.0 1.0 1.0 25.6 % - 0.0 % 0.0 %2,856.0 2,857.0 1.0 1.0 25.2 % - 0.0 % 0.0 %2,857.0 2,858.0 1.0 1.0 29.2 % - 0.0 % 0.0 %2,858.0 2,859.0 1.0 1.0 28.5 % - 0.0 % 0.0 %2,859.0 2,860.0 1.0 1.0 28.7 % - 0.0 % 0.0 %2,860.0 2,861.0 1.0 1.0 28.0 % - 0.0 % 0.0 %2,861.0 2,862.0 1.0 1.0 28.5 % - 0.0 % 0.0 %2,862.0 2,863.0 1.0 1.0 26.1 % - 0.0 % 0.0 %2,863.0 2,864.0 1.0 1.0 26.6 % - 0.0 % 0.0 %2,864.0 2,865.0 1.0 1.0 26.6 % - 0.0 % 0.0 %2,865.0 2,866.0 1.0 1.0 27.8 % - 0.0 % 0.0 %2,866.0 2,866.5 0.5 0.5 21.5 % - 0.0 % 0.0 %


Cutoffs Applied Vclay = 50.0 % Porosity = 10.0 % Sw = 70.0 %

Log Analysis Summary for Elver-1 - gurnard

Depth - TVD SS



2,866.5 2,869.0 2.5 2.4 20.1 % - 0.0 % 0.0 %2,869.0 2,872.0 3.0 2.9 22.0 % - 0.0 % 0.0 %2,872.0 2,875.0 3.0 2.3 22.4 % - 0.0 % 0.0 %2,875.0 2,878.0 3.0 1.7 22.1 % - 0.0 % 0.0 %2,878.0 2,881.0 3.0 2.7 21.9 % - 0.0 % 0.0 %2,881.0 2,884.0 3.0 2.2 19.9 % - 0.0 % 0.0 %2,884.0 2,887.0 3.0 1.3 17.1 % - 0.0 % 0.0 %2,887.0 2,890.0 3.0 0.5 16.7 % - 0.0 % 0.0 %2,890.0 2,893.0 3.0 1.9 20.6 % - 0.0 % 0.0 %2,893.0 2,896.0 3.0 2.8 19.3 % - 0.0 % 0.0 %2,896.0 2,899.0 3.0 2.5 17.2 % - 0.0 % 0.0 %2,899.0 2,902.0 3.0 2.5 17.1 % - 0.0 % 0.0 %2,902.0 2,905.0 3.0 3.0 19.6 % - 0.0 % 0.0 %2,905.0 2,908.0 3.0 2.9 21.0 % - 0.0 % 0.0 %2,908.0 2,911.0 3.0 3.0 24.5 % - 0.0 % 0.0 %2,911.0 2,914.0 3.0 3.0 24.4 % - 0.0 % 0.0 %2,914.0 2,917.0 3.0 3.0 22.4 % - 0.0 % 0.0 %2,917.0 2,920.0 3.0 3.0 21.2 % - 0.0 % 0.0 %2,920.0 2,923.0 3.0 1.7 20.0 % - 0.0 % 0.0 %2,923.0 2,926.0 3.0 1.3 20.8 % - 0.0 % 0.0 %2,926.0 2,929.0 3.0 2.7 24.3 % - 0.0 % 0.0 %2,929.0 2,932.0 3.0 3.0 20.0 % - 0.0 % 0.0 %2,932.0 2,935.0 3.0 2.9 23.2 % - 0.0 % 0.0 %2,935.0 2,938.0 3.0 3.0 24.8 % - 0.0 % 0.0 %2,938.0 2,941.0 3.0 2.9 19.1 % - 0.0 % 0.0 %2,941.0 2,944.0 3.0 2.2 19.0 % - 0.0 % 0.0 %2,944.0 2,947.0 3.0 0.5 16.9 % - 0.0 % 0.0 %2,947.0 2,950.0 3.0 1.4 18.2 % - 0.0 % 0.0 %2,950.0 2,953.0 3.0 2.2 17.8 % - 0.0 % 0.0 %2,953.0 2,956.0 3.0 0.8 15.7 % - 0.0 % 0.0 %2,956.0 2,959.0 3.0 3.0 24.2 % - 0.0 % 0.0 %2,959.0 2,962.0 3.0 0.8 22.6 % - 0.0 % 0.0 %2,962.0 2,965.0 3.0 0.1 16.5 % - 0.0 % 0.0 %2,965.0 2,968.0 3.0 1.9 17.1 % - 0.0 % 0.0 %2,968.0 2,971.0 3.0 2.5 21.5 % - 0.0 % 0.0 %2,971.0 2,974.0 3.0 0.6 17.1 % - 0.0 % 0.0 %2,974.0 2,977.0 3.0 1.1 17.4 % - 0.0 % 0.0 %2,977.0 2,980.0 3.0 3.0 21.6 % - 0.0 % 0.0 %2,980.0 2,982.3 2.3 0.9 20.0 % - 0.0 % 0.0 %



Log Analysis Summary for Elver-1 - A1

Depth - TVD SS



2,982.3 2,987.0 4.7 4.6 27.4 % - 0.0 % 0.0 %2,987.0 2,992.0 5.0 4.9 23.8 % - 0.0 % 0.0 %2,992.0 2,997.0 5.0 5.0 20.4 % - 0.0 % 0.0 %2,997.0 3,002.0 5.0 5.0 25.3 % - 0.0 % 0.0 %3,002.0 3,007.0 5.0 3.8 24.2 % - 0.0 % 0.0 %3,007.0 3,012.0 5.0 5.0 20.4 % - 0.0 % 0.0 %3,012.0 3,017.0 5.0 5.0 24.2 % - 0.0 % 0.0 %3,017.0 3,022.0 5.0 5.0 23.1 % - 0.0 % 0.0 %3,022.0 3,027.0 5.0 2.4 19.5 % - 0.0 % 0.0 %3,027.0 3,032.0 5.0 2.3 17.1 % - 0.0 % 0.0 %3,032.0 3,037.0 5.0 5.0 24.4 % - 0.0 % 0.0 %3,037.0 3,042.0 5.0 5.0 27.6 % - 0.0 % 0.0 %3,042.0 3,047.0 5.0 5.0 26.7 % - 0.0 % 0.0 %3,047.0 3,052.0 5.0 2.4 26.9 % - 0.0 % 0.0 %3,052.0 3,057.0 5.0 2.0 24.3 % - 0.0 % 0.0 %3,057.0 3,062.0 5.0 1.3 19.5 % - 0.0 % 0.0 %3,062.0 3,067.0 5.0 4.4 24.2 % - 0.0 % 0.0 %3,067.0 3,072.0 5.0 5.0 23.5 % - 0.0 % 0.0 %3,072.0 3,077.0 5.0 4.6 18.3 % - 0.0 % 0.0 %3,077.0 3,082.0 5.0 4.7 21.2 % - 0.0 % 0.0 %3,082.0 3,087.0 5.0 5.0 22.0 % - 0.0 % 0.0 %3,087.0 3,092.0 5.0 0.1 13.1 % - 0.0 % 0.0 %3,092.0 3,097.0 5.0 4.7 21.9 % - 0.0 % 0.0 %3,097.0 3,102.0 5.0 5.0 27.9 % - 0.0 % 0.0 %3,102.0 3,107.0 5.0 4.9 27.4 % - 0.0 % 0.0 %3,107.0 3,112.0 5.0 5.0 22.2 % - 0.0 % 0.0 %3,112.0 3,117.0 5.0 5.0 22.4 % - 0.0 % 0.0 %3,117.0 3,122.0 5.0 5.0 28.2 % - 0.0 % 0.0 %3,122.0 3,127.0 5.0 5.0 25.2 % - 0.0 % 0.0 %3,127.0 3,132.0 5.0 5.0 27.1 % - 0.0 % 0.0 %3,132.0 3,137.0 5.0 5.0 25.4 % - 0.0 % 0.0 %3,137.0 3,142.0 5.0 5.0 27.2 % - 0.0 % 0.0 %3,142.0 3,147.0 5.0 5.0 28.7 % - 0.0 % 0.0 %3,147.0 3,152.0 5.0 5.0 26.4 % - 0.0 % 0.0 %3,152.0 3,157.0 5.0 5.0 18.0 % - 0.0 % 0.0 %3,157.0 3,162.0 5.0 5.0 22.1 % - 0.0 % 0.0 %3,162.0 3,167.0 5.0 5.0 25.8 % - 0.0 % 0.0 %3,167.0 3,172.0 5.0 5.0 25.3 % - 0.0 % 0.0 %3,172.0 3,177.0 5.0 5.0 24.8 % - 0.0 % 0.0 %3,177.0 3,182.0 5.0 5.0 22.2 % - 0.0 % 0.0 %3,182.0 3,187.0 5.0 5.0 22.8 % - 0.0 % 0.0 %3,187.0 3,188.3 1.3 1.2 21.8 % - 0.0 % 0.0 %




Depth - TVD SS



3,188.3 3,189.0 0.7 0.2 27.8 % - 0.0 % 0.0 %3,189.0 3,190.0 1.0 0.7 17.8 % - 0.0 % 0.0 %3,190.0 3,191.0 1.0 - 8.0 % - 0.0 % 0.0 %3,191.0 3,192.0 1.0 0.3 15.9 % - 0.0 % 0.0 %3,192.0 3,193.0 1.0 0.1 13.1 % - 0.0 % 0.0 %3,193.0 3,194.0 1.0 - 4.3 % - 0.0 % 0.0 %3,194.0 3,195.0 1.0 - 8.8 % - 0.0 % 0.0 %3,195.0 3,196.0 1.0 0.5 18.2 % - 0.0 % 0.0 %3,196.0 3,197.0 1.0 0.9 27.0 % - 0.0 % 0.0 %3,197.0 3,198.0 1.0 1.0 25.8 % - 0.0 % 0.0 %3,198.0 3,199.0 1.0 0.3 20.3 % - 0.0 % 0.0 %3,199.0 3,200.0 1.0 - 0.3 % - 0.0 % 0.0 %3,200.0 3,201.0 1.0 - 4.6 % - 0.0 % 0.0 %3,201.0 3,202.0 1.0 - 8.4 % - 0.0 % 0.0 %3,202.0 3,203.0 1.0 0.1 15.0 % - 0.0 % 0.0 %3,203.0 3,204.0 1.0 - 6.4 % - 0.0 % 0.0 %3,204.0 3,205.0 1.0 0.3 15.1 % - 0.0 % 0.0 %3,205.0 3,206.0 1.0 1.0 18.6 % - 0.0 % 0.0 %3,206.0 3,207.0 1.0 0.9 27.1 % - 0.0 % 0.0 %3,207.0 3,208.0 1.0 0.9 26.5 % - 0.0 % 0.0 %3,208.0 3,209.0 1.0 1.0 29.7 % - 0.0 % 0.0 %3,209.0 3,210.0 1.0 0.7 22.2 % - 0.0 % 0.0 %3,210.0 3,211.0 1.0 1.0 19.2 % - 0.0 % 0.0 %3,211.0 3,212.0 1.0 1.0 17.2 % - 0.0 % 0.0 %3,212.0 3,213.0 1.0 1.0 21.7 % - 0.0 % 0.0 %3,213.0 3,214.0 1.0 1.0 20.3 % - 0.0 % 0.0 %3,214.0 3,215.0 1.0 0.8 14.9 % - 0.0 % 0.0 %3,215.0 3,216.0 1.0 0.4 13.9 % - 0.0 % 0.0 %3,216.0 3,217.0 1.0 1.0 22.8 % - 0.0 % 0.0 %3,217.0 3,218.0 1.0 0.2 19.2 % - 0.0 % 0.0 %3,218.0 3,219.0 1.0 0.9 16.3 % - 0.0 % 0.0 %3,219.0 3,220.0 1.0 1.0 19.2 % - 0.0 % 0.0 %3,220.0 3,221.0 1.0 0.6 21.8 % - 0.0 % 0.0 %3,221.0 3,222.0 1.0 0.5 15.3 % - 0.0 % 0.0 %3,222.0 3,223.0 1.0 0.9 17.0 % - 0.0 % 0.0 %3,223.0 3,223.6 0.6 0.6 24.1 % - 0.0 % 0.0 %




Depth - TVD SS

elver-1 petrophysical summary interpretation based on memory lwd data at td 12 jan. 2009

Documents