South West Ampa gas field
| South West Ampa | |
|---|---|
.jpg) | |
| Country | Brunei |
| Region | Belait |
| Offshore/onshore | Offshore |
| Coordinates | 4°45′01″N 114°06′45″E / 4.75041°N 114.11245°E |
| Operator | Brunei Shell Petroleum |
| Owner |
|
| Field history | |
| Discovery | 1963 |
| Start of production | 1965 |
| Peak year | 1973 |
| Production | |
| Current production of oil | 9,500 m3/d (60,000 bbl/d) |
| Peak of production (oil) | 125,796 barrels per day (~6.268×106 t/a) |
| Recoverable oil | 128,000,000 million barrels (~1.75×1013 t) |
South West Ampa (SWA) gas field,[1] also known as Ampa Field or Southwest Ampa,[2] is a conventional gas field 13 kilometres (8.1 mi)[3] off Kuala Belait and near to Fairley and Gannet gas fields.[4] It is managed by Brunei Shell Petroleum (BSP) Company that is situated in the shallow sea. The gas field is owned by the government of Brunei and BSP.[5] The field contains more than half of BSP's gas reserves,[6] with over 400 oil rim reservoirs and 380 non-associated gas reservoirs.[7]
Overview[edit]
The complex geology, faulting, and internal reservoir cross-flow of the Ampa Field provide challenges despite its well-understood reservoirs.These problems are addressed by research employing 3D models and analytical calculations.[7] Gas from the field is transported 39 kilometres (24 mi) kilometers to the Brunei LNG plant, accounting for more than half of Brunei's gas output and reserves. Significant oil reserves from 164 oil-producing wells are also present in the area.[4] The main field, the southern region, and the 21 area are the three primary hydrocarbon-bearing areas of the field.[8]
The SWA field has a history of producing sand and is made up of several thin, piled sand layers. The sand control completions were difficult because of the problems with shale stability and the many sand layers. The field saw the installation of many openhole gravel packs, all of which failed since the shale collapsed as soon as the openhole was relocated to brine. As a result, expandable sand screen (ESS) was installed in the SWA-290 well as the first sand control technique, replacing gravel packing.[1]
History[edit]
The South West Ampa gas field was found in July 1963 and is situated 25 kilometres (16 mi) west of Seria at sea depths of 10–40 metres (33–131 ft).[8][7] SWA-1 was used for the discovery, which revealed a shallow reservoir with a fluctuating condensate percentage, a relatively high solution gas–oil ratio, an API gravity of 40°, and an initial oil viscosity of 0.35 cp.[1] In order to generate revenue from these deposits, Brunei had to surmount significant obstacles including vast distances to prospective markets, an untested technology for gas liquefaction, and a lack of expertise in LNG transportation.[9]
The main field's oil production began in 1965 and peaked in 1973 at 20,000 cubic metres per day (710,000 cu ft/d). In 1968 and 1970, it reached 9,500 cubic metres per day (340,000 cu ft/d), and the same year, LNG production started.[8] With a peak production year, the South West Ampa recovered 99.79% of its net viable reserves.[5] As of 1996, 161 of the 279 wells that had been drilled in the field were producing, according to BSP. 345,109 cubic centimetres (21,059.8 cu in) of gas, 128,000,000 cubic centimetres (7,800,000 cu in) of oil, and 35,000,000 cubic centimetres (2,100,000 cu in) of condensate are predicted to be the field's ultimate recoveries.[8]
Pehin Dato Abdul Rahman formally inaugurated the Ampa Fairley Rationalization Project in May 2000.[6] BSP granted a three-year contract to McDermott International to transport and build pipelines and umbilicals for the Champion and Ampa Fields offshore Brunei.[10] The work is expected to be completed by 2017.[11] Drilling two distinct campaigns of development wells at the SWA field in 2018 using the jack-up drilling rig Maersk Convincer. On 13 June 2019, BSP plans to begin a 150-day development drilling phase in the shallow-water SWA region.[12]
Production will go on until the field hits its economic limit in 2027, according to economic projections. As of 2021, the field produces around 2% of the nation's daily output.[5]
Platforms[edit]
The Ampa-6 and Ampa-9 complexes underwent major offshore upgrades in 2001. These included the installation of two new pipelines, a centralised crude stabilisation facility, and an upgraded distributed control system—all of which had negligible impact on the delivery of oil and gas.[5] Several disused buildings, including SWA-7, SWA-8, SWA-9, SWA-18, SWA-35, SWA-150, AMVJ-2, and AMPP-2, were dismantled in June 2012.[13]
References[edit]
- ^ a b c Nur Aqilah Ahad; Morteza Jami; Stephen Tyson (1 April 2020). "A review of experimental studies on sand screen selection for unconsolidated sandstone reservoirs". Journal of Petroleum Exploration and Production Technology. 10 (4): 1675–1688. doi:10.1007/s13202-019-00826-y. ISSN 2190-0566.
- ^ Abdul Kani Hj. Mohd. Salleh (1 March 1985). "Offshore exploration in Brunei". Energy. Proceedings of the Second EAPI/CCOP Workshop. 10 (3): 487–491. doi:10.1016/0360-5442(85)90063-5. ISSN 0360-5442.
- ^ "ENERGY COUNTRY REVIEW - Brunei" (PDF). www.keyfactsenergy.com. Retrieved 22 May 2024.
- ^ a b Swan, Eddy (20 July 2009). "Brunei Share: Brunei Darussalam History of Oil & Gas". Brunei Share. Archived from the original on 20 July 2009. Retrieved 22 May 2024.
- ^ a b c d "Oil & gas field profile: South West Ampa Conventional Gas Field, Brunei". www.offshore-technology.com. 23 November 2021. Retrieved 22 May 2024.
- ^ a b Mohd Jaini Hj Ibrahim. "AMPA FAIRLEY RATIONALISATION PROJECT" (PDF). members.igu.org. pp. 3, 7–8. Retrieved 22 May 2024.
- ^ a b c Peacock, A. W.; Ibrahim, M. I. B. (14 April 1997). "Infill Oil Development in South West Ampa Field". SPE Asia Pacific Oil and Gas Conference and Exhibition. OnePetro. doi:10.2118/38063-MS.
- ^ a b c d "Public and private sector spearhead initiatives in Brunei Darussalam's energy sector". oxfordbusinessgroup.com. 26 June 2016. Retrieved 22 May 2024.
- ^ "Brunei LNG". www.mechademy.com. 26 November 2018. Archived from the original on 26 November 2018. Retrieved 22 May 2024.
- ^ Russell Searancke (31 May 2017). "McDermott starts Brunei pipeline installation job". upstreamonline.com. Retrieved 22 May 2024.
- ^ OE Staff (11 November 2014). "McDermott gets Brunei Shell subsea work". Offshore Engineer Magazine. Retrieved 22 May 2024.
- ^ "BSP busy at SW Ampa". upstreamonline.com. 16 May 2019. Retrieved 22 May 2024.
- ^ Dr. Brian Twomey (June 2012). "Artificial Reefs" (PDF). www.ccop.or.th. Retrieved 22 May 2024.
