JPDA PRODUCTION

JPDA: Monthly Production
Barrels of Oil Equivalent (BOE)

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MonthProduction (BOE)
May '173,251,086.98
Jun '173,881,110.84
Jul '173,579,747.04

Autoridade Nacional do Petróleo

LAFAEK, Well Description

Well: Sunset-1

click for full map


Region:

JPDA

Contact Area:

JPDA 03-19

Field Name:




Well Type:

Exploration

Classification:

Gas - Abandoned



Total depth (m):

2420

RKB (m):

25

Seabed (m):

238

Start:

22-September-97

Finish:

06-November-97

Well Data (release):

02/05/2000 10:00:00 PM

Status:

Draft


SUNSET-1

WELL SUMMARY

The Sunset-1 well was drilled by the semi-submersible MODU, Ocean Bounty in PSC ZOCA 95-19 in the Timor Sea, 450 km north west of Darwin, between Northern Australia and the island of Timor. Geologically the area lies within the northern portion of the Bonaparte Basin, one of the several major basins on the Australian North West Shelf. Sunset-1 was designed to test the fluvio-deltaic sandstones of the Upper and Middle Jurassic Plover Formation.

The well spudded on 22 Septermber 1997 and drilled at total depth of 2420 mDF, which was reached on 13 October 1997. After completion of final logging and testing the well was plugged and abandoned as a gas condensate discovery and the rig was released on 5 November 1997.

General Well Info

Well Name: Sunset-1

Well Classification/Type: Exploration

Operator: Shell Development (Australian) Pty Ltd

Participants/JV’s: Shell Development (Australian) Pty Ltd

Woodside Petroleum (Timor Sea 19) Pty Ltd

BHP Petroleum (95-19) Inc.

Permit: ZOCA 95-19

Field: N/A

Basin: Bonaparte

Sub-Basin: -

Well Location: Seismic Reference: Line 97-10, SP 633

Latitude: 009°38’36.369”S

Longitude: 127°58’34.759”E

Easting: 387 683.26 m E

Northing: 8 933 838.32 m S

Projection: UTM Zone 52, CM 129

Elevations:

Water Depth (m): 238.5m

Datum: Drill Floor (DF),

25 m above LAT

TD Depth: 2420 mDF

Rig Details:

Rig Name: Ocean Bounty

Contractor: Diamond Offshore

Rig Type: Semi-submersible MODU

Spud Date: 22 September 1997

TD Date: 13 October 1997

Rig Release: 5 November 1997

Well Status: Plugged & Abandoned

Stratigraphy
Formation
Seismic TWT (msec)
Tops
Thickness
(m)
Lithology
(m MDDF)
(m TVD DF)
(m TVD Subsea)
Sea floor
314
264
264
239
259
Returns to seabed
Oliver Fm
538
523
523
498
494
Return to seabed
Cartier Fm
919
1017
1017
992
127
Return to seabed
Hibernia Fm
1016
1144
1144
1119
299
Return to seabed
Johnson Fm
1204
1443
1443
1418
78
Return to seabed
Vee Fm
1250
1521
1521
1496
235
Return to seabed
Wangarlu Fm
1396
1756
1756
1731
335
Claystone
Darwin Radiolarite
1636
2091
2091
2066
31
Argilaceous Calcilutite
Echuca Shoals Fm
1650
2122
2122
2097
8
Claystone
Elang Fm
1655
2130
2130
2105
25
Claystone
Plover Fm
1670
2155
2155
2130
265+
Interbedded sandstone, Claystone and siltstone
TD
1800
2420
2420
2395
-

FORMATION EVALUATION

Formation Evaluation
Sampling
Cuttings
Sidewall Cores
Conventional Cores
Interval (mDF)
Sample Rate
Type
Shot/Cut
Recovered
Core No.
Interval (mDF)
Recovery (%)
1775-2420 m
3
MSCT
35
33
1
2
3
4
5
6
7
2094.0-2121.5
2121.5-2123.0
2154.0-2193.0
2193.0-2214.0
2201.0-2214.0
2214.0-2226.0
2226.0-2249.0
100
100
99.2
90.4
100
83.3
96.6

Cutting Distribution

Gas Measurements

Hydrocarbon Indications

Sidewall Cores

Percussion Sidewall Cores

No percussion sidewall cores were taken in Sunset-1.

Mechanical Sidewall Cores

A total of 35 mechanical sidewall cores (MSCT’s) were attempted in Sunset-1 over the interval 1790-2399 m with 33 cores recovered.

Conventional Cores


Micropalaleontology/Palynology

Palynological analyses were undertaken on sidewall cores and cutting samples from Sunset-1. There were 23 seidawall core samples and 43 core chip samples over the interval 1790 mDF to 2334

Geochemical Analysis

A total of 57 samples over the interval 1790 mDF to 2334 mDF were analyses by Geotechnical Services.

Measurement While Drilling

DIR-FE (Directional, gamma ray and electromagnetic wave resistivity) data in the 36” and 16” hole section from 239 to 1775 mDF.


DPR-VSS (Dual propagation resistivity resistivity, gamma, directional, temperature, vibration and stick slip) data in 12 ¼” hole from 1775-2420 mDF.


Wireline Logging


Testing

Formation pressures tests and smaples were taken in Sunset-1 using MDT (Modular Formation Dynamics Tester) tool.


MDT

DST Data











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