This paper presents the first year of development of the Maureen field in the British sector of the North Sea. A steel platform gravity structure was used for development. The crude oil is tanker-loaded at an articulated loading column (ALC). Production, seawater injection, and gas lifting are discussed. Production covers well completions, wellhead tiebacks, process-plant performance, and downtime. In particular, the process-plant performance, and downtime. In particular, the performance of the ALC is detailed. At the column, successful performance of the ALC is detailed. At the column, successful modifications to the hawser system for tanker mooring were made, to reduce excessive hawser replacements. Seawater injection experiences are described, and details of the perforating techniques and stimulation treatments are given. Gas lifting of a well to test the surface and downhole facilities is described.
The Maureen field, located in Block 16/29a of the U.K. sector of the North Sea, lies 163 miles [262 km] northeast of Aberdeen in 314-ft [95.7-m] water depth. Discovered in 1973. Maureen field is a Paleocene sandstone oil reservoir at 8,300 ft [2530 m] subsea. The field is produced through 12 oil wells and has seven peripheral produced through 12 oil wells and has seven peripheral waterinjection wells. The production platform is a steel gravity structure. The crude is processed before storage in three storage tanks that are an integral part of the structure. Oil is transported 7,500 ft [2286 m] by a 24-in. [61-cm] oil line to an ALC for tanker loading (Fig. 1). Surplus gas, not used for fuel or process, is flared. The steel gravity structure was set over the Maureen seabed 24-slot template in June 1983. The predrilled wells were tied back to the platform and completed. Final commissioning of the process equipment was done offshore, and oil production began Sept. 14, 1983. production began Sept. 14, 1983. The design and setting of the platform has been reported previously. This paper describes the first year's performance beginning Sept. 1983, focusing on production performance beginning Sept. 1983, focusing on production and processing, seawater injection, and gas lifting.