Oil and gas developments in central and southern Africa in 1986

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)

OSTI ID:5867252

Hartman, J B

Fewer wells and less footage were drilled in 1986 compared to 1985. Total drilling decreased by 23% as 217 wells were completed compared to 289 in 1985. Footage drilled during 1986 declined by 52%; about 1.3 million ft were drilled compared to about 2.7 million feet in 1985. The success rate for exploration wells of 34% during 1986 is due to considerably higher success rates in Nigeria and Gabon compared to 1985. Significant discoveries were made in Nigeria, Angola, Congo, and Gabon. Seismic acquisition was the major geophysical activity during 1986. Seismic activity (2-D and 3-D) decreased by 12% to about 230 crew-months. Total 2-D seismic kilometers recorded increased by 26% to about 82,000 km due to significant 2-D marine seismic activity in Nigeria and Angola. Surface geology, photogeology, geochemistry, gravimetry, and aeromagnetic surveys decreased compared to 1985. Total oil production in 1986 was 834 million bbl (about 2.2 million BOPD), an increase of 2%, with the most significant increased in Cameroon and Angola. The production share of OPEC countries (Nigeria and Gabon) versus non-OPEC countries increased to 72% in 1986 compared to 67% in 1985. 32 figures, 5 tables.

• Research Organization: Chevron Overseas Petroleum Inc., San Raman, CA
• OSTI ID: 5867252
• Journal Information: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States), Journal Name: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States) Vol. 71:10B; ISSN AABUD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
020300 -- Petroleum-- Drilling & Production
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
030300 -- Natural Gas-- Drilling
Production
& Processing
AFRICA
ANGOLA
CAMEROON
DEVELOPING COUNTRIES
DRILLING
EXPLORATION
EXPLORATORY WELLS
GABON
NATURAL GAS WELLS
NIGERIA
OIL WELLS
WELL DRILLING
WELLS