Takula Oil Field and the Greater Takula Area, Cabinda, Angola
The Greater Takula area comprises four offshore fields that produce oil predominantly from Upper Cretaceous reservoirs. They are located approximately 40 km (25 mi) west-northwest of the Malongo terminal, Cabinda, Angola, in water depths between 50 and 75 m (165 and 230 ft). Current total production level is approximately 200,000 bbl of 32° API oil per day. The largest field is Takula, where oil was first discovered in rocks of Barremian age in 1971. However, it was not until 1979 that the giant oil accumulation in the Cenomanian section was tested. An estimated 2060 MMSTB of OOIP (original oil in place) was present in Takula field. By 1983, appraisal and exploratory drilling had found the prolific Greater Takula trend of rollover anticlinal structures striking northwest to southeast through Takula. These structures host Wamba, Takula, Numbi, and Vuko fields. Over 80% of the original oil in place is held in the Cenomanian Vermelha sandstone reservoirs. These reservoirs are a stacked sequence of nearshore sandstones deposited in a coastal environment. The Greater Takula area is now in a mature stage of development, having produced over 250 MMSTB from an OOIP of 3450 MMSTB.
Figures & Tables
The success of Memoir 14 and the worldwide interest shown for data on giant fields prompted AAPG to schedule a symposium on giant fields at the end of each subsequent decade. The 1968-78 symposium was held in Houston, Texas, April 1-4, 1979, and the papers were published in AAPG Memoir 30, December 1980.
The Stavanger Conference "Giant Oil and Gas Fields of the Decade: 1978-1988" was held in Stavanger, Norway, September 9-12, 1990, and is a continuation of the Giants of the Decade series.
Scientific studies and projections of future world energy demand indicate that although alternative-energy fuel sources must be actively pursued and developed, there also must be adequate petroleum supplies to bridge the gap. For the international petroleum industry, the years covered by this conference, 1978-88, were complex. They were years of boom and bust. The world's energy consciousness was boosted sharply by the effects of the 1979 Iranian revolution and the resulting embargo, which sent world oil prices to record heights. Global petroleum exploration soon surged, leading to the industry's all-time drilling high in 1981. Then came the oil price collapse in 1985, and the following years were characterized by falling oil prices and drastic budget cuts for exploration and development.
Although exploration dropped sharply during the latter part of the decade, there was a steady flow of giant oil and gas field discoveries. Using the giant field designation criteria of 500 million bbl of oil recoverable for fields in Asiatic Russia, North Africa, and the Middle East,