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Title: Atalaia Multiphase Flow Test Facility: Description, Recent Works And Future Tests
Author: Ibere Nascentes Alves, Paulo Jose Pinto Ribeiro, Valdir Estevam
Source: Flomeko 2000
Year Published: 2000
Abstract: This work presents the facilities of the Sitio de Teste de Atalaia (Atalaia test site) from Petrobras, located in Aracaju, Brazil. It was installed in 1994 to investigate the performance and endurance of different equipments related to artificial lift systems or multiphase flow installations, such as gas lift valves, meters, boosters and pumps. A large scale flow loop, 220-meters long and 6-inches of internal diameter, was designed to conduct two and three-phase flow tests. The multiphase flow loop is capable of flowing natural gas, crude oil and water simultaneously, at pressures up to 45 bar. Maximum flow rates are 400 STD m3/h of gas, 120 m3/h of oil and 76 m3/h of water. With these flow rates and pressure ranges, all multiphase flow patterns encountered in operating pipelines can be obtained. A control & data acquisition system is used to acquire data from any equipment under test and from several resident measurement devices. It also provides the necessary control for the flow loop. Experience shows that a very good control of all the flow variables is achieved with this system. The following equipment were tested in the last four years at Atalaia: multiphase flowmeters from Fluenta, Framo and Mixmeter two-phase flowmeter from ITT Barton Bornemanns multiphase pumping system and VASPS separation system (using both Agip and Petrobras-Unicamp designs). The following activities are scheduled for the year 2000: drilling and completion of a testing well 300- meters deep testing of a WEMD-Leistritz subsea multiphase pumping system testing of multiphase flowmeters from Framo, DUET and MFI and phase II of the gas lift valves performance tests. Keywords: Test Site, Multiphase Flow, Artificial Lift, and Meters

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