Petroleum developments in central and southern Africa in 1971

Journal Article · Fri Sep 01 04:00:00 EDT 1972 · Am. Assoc. Pet. Geol. Bull.; (United States)

OSTI ID:6049027

Cortesini, A; Minner, J R

This review covers 44 African countries excluding Morocco, Algeria, Tunisia, Libya, Egypt, and Sudan. Party-months of surface exploration were surface geology 75.8; seismograph 334.3; gravimeter 25.8; magnetometer 24.4; photogeology 44.0; and structural drilling 10.6; for a total of 514.9. Exploratory drilling increased to 142 wildcats with 23.1% success. Discoveries were made in Angola (3 oil, 1 gas); Congo (Brazzaville) (1 gas); Gabon (3 oil, 1 gas); Nigeria (22 oil, 1 gas); and Zaire (1 oil). A total of 27 unsuccessful wildcats was drilled in 10 other countries. A total of 247 development wells, with a success of 81.8%, was drilled in Angola, Congo (Brazzaville), Gabon, Nigeria, and Zaire. Total footage drilled increased to 3,375,929 ft (1,028,977 m). As of Dec. 31, 1971, 52 rigs were operating. Total annual oil production increased about 36% to 641,621,514 bbl, with an average rate of 1,757,967 bpd. Nigeria increased production, 41.5%, but Angola and Gabon recorded only modest gains. Total annual gas production, after correction of previous reports, showed an increase in excess of 100% to 491,857 MMcf (1,346 MMcfd).

• Research Organization: Gulf Oil Corp.
• OSTI ID: 6049027
• Journal Information: Am. Assoc. Pet. Geol. Bull.; (United States), Journal Name: Am. Assoc. Pet. Geol. Bull.; (United States) Vol. 59:9; ISSN AAPGB
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
AFRICA
ANGOLA
BRAZZAVILLE
CONGO PEOPLES REPUBLIC
DEVELOPING COUNTRIES
DRILLING
ENERGY SOURCES
EXPLORATION
FOSSIL FUELS
FUELS
GABON
GEOLOGIC DEPOSITS
GEOLOGY
INDUSTRY
MINERAL RESOURCES
NIGERIA
OIL WELLS
PETROLEUM
PETROLEUM DEPOSITS
PETROLEUM INDUSTRY
PRODUCTION
RESOURCES
SEISMOLOGY
WELLS
ZAIRE REPUBLIC