2001年-世界发展银行全球_Africa_Gas_Initiative___Volume_2_Angola_66页_3mb

Africa Gas Initiative Summary: Angola

Core Content

The Africa Gas Initiative (AGI) is a study conducted by the Joint UNDP/World Bank Energy Sector Management Assistance Programme (ESMAP) to explore the potential for reducing gas flaring and utilizing natural gas in Angola's energy sector. The report outlines the current state of Angola's oil and gas industry, its infrastructure, and the opportunities for commercial development of natural gas for power generation and other uses.

Main Points

1. Overview of the Gas and Oil Sector

• Angola's petroleum industry began in 1955 with the discovery of oil in the Kwanza Valley by Petrofina.
• The industry became a major economic driver after independence in 1975, with oil accounting for 40% of GDP by 1995.
• Crude oil now makes up 90% of total exports, 80% of government revenues, and 42% of GDP.
• Oil production increased from 359,000 bpd in 1987 to nearly 800,000 bpd in 1999.
• Most of the oil is produced offshore, particularly in the Cabinda and northern coastal areas.

2. Oil and Gas Potential

• Sonangol is the national oil company, and CABGOC (a Chevron subsidiary) is the main operator of offshore oil production.
• The CABGOC has discovered significant reserves in deepwater Block 14, including the Kuito field.
• The Kuito field is expected to produce 75,000 bpd during Phase One and reach peak production of 100,000 bpd by 2002.
• Chevron's Nemba and Lomba fields are also zero-gas flared, indicating progress in gas utilization.

3. Gas Reserves and Production

• Natural gas reserves in Angola are estimated at 1.6 tcf as of early 1999, potentially higher due to recent discoveries.
• The majority of gas production comes from offshore fields, particularly Cabinda, which accounts for about 70% of the total gas production.
• Gas flaring is a significant issue, with over 70% of gas being flared or vented in 1998, and about 20% re-injected to aid oil production.
• Domestic use of gas is minimal, and the lack of infrastructure hinders development and usage of natural gas.

4. Power Generation

• Angola has three main electrical systems: Northern, Central, and Southern, each associated with different river basins.
• The Northern system, centered around Luanda, accounts for nearly 80% of electricity consumption.
• Despite high hydro potential, the cost and time required to develop hydroelectric schemes make natural gas a more attractive option for power generation.
• The Capanda hydroelectric project (520 MW) is under construction and expected to be commissioned by 2002, but its rehabilitation is not as cost-effective as building gas-fired power plants.

5. Gas Utilization for Power Generation

• The AGI has assessed the use of natural gas for both converting existing oil-fired power plants and developing new gas-fired power plants.
• Existing gas turbines in Luanda currently use Jet B fuel but could be converted to natural gas, reducing costs and environmental impact.
• Natural gas could also serve as a cost-effective alternative to expensive and slow hydroelectric development.
• The report suggests that cost-effective gas supplies in the Luanda area are critical for the success of gas-based power generation.

Key Information

• Flaring is a major issue in Angola, with nearly 140 bcf of gas flared in 1998, contributing to environmental pollution and resource waste.
• The national oil company (Sonangol) and foreign oil companies (IOCs) operate under production sharing agreements (PSAs), which allow foreign partners to finance exploration and production.
• Angola's gas reserves are substantial, with the offshore areas (particularly Cabinda) holding most of the reserves.
• The gas-to-power initiative is seen as a way to improve energy access, reduce flaring, and support economic development.
• The refinery in Luanda is a joint venture between Sonangol, Fina, and private investors, with current capacity of 1.9 mty (38,000 bpd) and actual throughput of 1.6 mty.
• A second refinery is planned for Lobito, but its success depends on securing USD 2 billion in funding and ensuring political stability.

Major Challenges

• War and political instability have severely damaged infrastructure and slowed economic development.
• Limited domestic and regional markets for gas hinder its commercial utilization.
• High costs and long timelines for hydroelectric development make gas a more viable option.
• Lack of gas pipeline infrastructure limits the ability to transport and utilize natural gas effectively.

Conclusion

The Africa Gas Initiative highlights the potential for reducing gas flaring and utilizing natural gas in Angola's energy sector. It emphasizes the need for sector reform, improved infrastructure, and commercial development of gas reserves to support economic growth, energy access, and environmental sustainability. The report suggests that natural gas can be a cost-effective and efficient alternative to hydroelectric power, especially in the Luanda area, and recommends prioritizing its development to meet the country's growing energy needs.