Santos Indonesian drilling update
Thursday, August 4 2005 - 06:35 AM WIB
The following is excerpt from Santos Limited?s Weekly Drilling Report for week ending August 04, 2005:
| Delineation Well(Near Field Exploration/ Appraisal Well) | Jeruk 2 ST4 |
| Type | Oil Appraisal |
| Location | Offshore Indonesia |
| Sampang PSC, East Java Basin. 1.6km E of Jeruk 1, 35.0km SW of the Oyong Field, and some 40km SE of Surabaya. Jeruk 2 ST4 is an appraisal sidetrack drilled out of the existing Jeruk 2 wellbore. | |
| Status at 0300hrs -- 04/08/05 | Current operation is running wireline logs. The current depth is 5318m with 88m progress for the week. An 18.5m core was cut from 5270m-5288.5m during the week with 100% recovery. |
| Planned Total Depth | 5570m |
| Interest | Santos Group 45.0% |
| Singapore Petroleum Sampang Ltd 40.0% | |
| Cue Sampang Pty Ltd 15.0% | |
| Operator | Santos |
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| Development Well | Wunut 15 |
| Type | Gas Development |
| Location | Onshore Indonesia |
| Brantas PSC, East Java Basin. 0.5km N of Wunut 1, and some 30km S of Surabaya. | |
| Status at 0600hrs -- 04/08/05 | Wunut 15 has been cased and suspended as a future Gas Producer. The well reached a total depth of 930m with no progress for the week. Cased hole production testing was conducted with the following results. G20 zone flowed gas at 60,317 cubic meters per day through a 9.525mm choke. F20 zone flowed gas at 94,865 cubic meters per day through a 9.525mm choke. F10, E20, and E10 zones combined flowed gas at 62,809 cubic meters per day through a 9.525mm choke. The rig was released on 02/08/05. |
| Planned Total Depth | 945m |
| Interest | Lapindo Brantas 50% |
| Novus Indonesia Brantas Company 32% | |
| Santos Group 18% | |
| Operator | Lapindo Brantas |
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| Development Well | Oyong Development |
| Type | Oil Development |
| Location | Offshore Indonesia, East Java Basin |
| Sampang PSC, 40km E of Jeruk 1 and some 80km E of Surabaya. 7 Deviated Well Batch Drilling Program (Oyong 4 DW1 ? Oyong 10 DW1) | |
| Status at 1500hrs -- 04/08/05 | Fishing parted production screen in Oyong 4DW1. Oyong 4 DW1: 244mm casing set at 1019m. Current depth 1603m. Oyong 5 DW1: 244mm casing set at 965m. Current depth 1296m. PBTD 870m Oyong 6 DW1 Pilot: 244mm casing set at 1022m. Hole abandoned at 1200m. Oyong 7 DW1: 178mm casing set at 1189m. Current depth 1190m. Oyong 8 DW1:Pilot 244mm casing set at 1351m. TD 1652m. Temporary Abandoned Oyong 9 DW1/ST1: 178mm casing set at 1339m. Current depth 1340m. Oyong 10 DW1: 244mm casing set at 835m. Current depth 838m. |
| Planned Total Depth | 920m SS |
| Interest | Santos Group 45.0% |
| Singapore Petroleum Sampang Ltd 40.0% | |
| Cue Sampang Pty Ltd 15.0% | |
| Operator | Santos Group |