Agbami Discovery Well, Niger Delta, Nigeria
ChevronTexaco’s Agbami Field, which is due onstream in 2008, is a giant discovery off Nigeria. The Agbami field lies in OPL Block 216, approximately 220 miles south-east of Lagos and 70 miles offshore Nigeria, in the central Niger Delta. The field is operated by the Nigerian independent oil company Famfa, with Texaco serving as a technical advisor. It is owned by the terms of a deepwater production-sharing contract (PSC) between Texaco and Famfa. Texaco currently holds a 100% contractor's interest, subject to further provisions of the PSC.
In late 1996, Texaco and Famfa were granted exploration rights to the 617,000-acre OPL Block 216. They acquired 3D seismic data using Texaco's 3D visualisation technology. This is said to have reduced the cycle time for the well to approximately one-and-a-half years. DRILLING
The discovery well Agbami-1, completed in January 1999, encountered 420 net feet of pay, in multiple oil zones from 8,200ft to the total depth of 12,400ft. The well penetrated stacked reservoir sands saturated with oil, ranging in overall column thickness from 400 to over 1,000ft. The quality of the oil from these zones is 35-45 degree API gravity, with a very low sulphur content. Preliminary data indicates the reservoirs contain several hundred million barrels of recoverable oil.
The well spudded on 15 July 1999 in 4,700ft of water, making it the deepest water-depth well in Nigeria. It reached the total depth in late November 1999 and was temporarily suspended to allow for flow testing and possible production at a later date.
In 2001 the operator completed appraisal drilling. The successful four-well appraisal program confirmed that the Agbami structure has potential recoverable reserves of 1 Bboe, which ranked among the largest single finds to date in deepwater West Africa. The structure spans an area of 45,000 acres and extends from Block 216 into Block 217 in water depths of approximately 2,000 m (6,500 ft).
In 2005 ChevronTexaco chose FMC Technologies to supply subsea systems for the Agbami project. The contract with Star Deep Water Petroleum Ltd., an affiliate of ChevronTexaco Corp. has a value of approximately $276 million in revenue to FMC Technologies.
The Agbami Field is being developed using subsea wells tied back to an FPSO and a dry tree unit with drilling capabilities in about 1,341 m of water. Production will flow from the dry tree unit to the FPSO for processing. The operator expects 37 wells will be necessary to fully exploit the field.
FMC Technologies' initial scope of supply for the Agbami project included subsea trees and associated structures, manifolds, suction piles, subsea distribution, topsides controls, flying leads, and jumper connection systems. FMC Technologies also will provide project management, system engineering, quality assurance and control and building of a Subsea Service base in Nigeria to support installation and life of field activities. Deliveries began in Q3 2006 and will be completed over a multi-year period.
Agbami marks FMC Houston's first project to be executed in Nigeria. Thus, FMC will manufacture 12 manifolds and suction piles in Nigeria, transfer significant technology and skills to Nigeria with training and development of local personnel in engineering and management disciplines, and carry out sub supplier and supply chain development within Nigeria.