02441nmc a2200277 4500 20260520005607.0 260224s2001 xxu ing Inglés Designing a Mobility Control Foam for Western Venezuela Reservoirs: Experimental Studies SPE 69543 Dallas, Texas Society of Petroleum Engineers 2001 12/09/06 ; 17/07/01 This paper presents the results of laboratory tests, performed in a mobility control foam design for Western Venezuelan Reservoirs. In this operational area, two Water Alternate Gas (WAG) injection projects are currently under way using natural gas, but they are expected to change to nitrogen. The tests presented in this paper were performed mainly with nitrogen, although a final displacement test was designed using fluids that are currently under use in the Lagocinco VLE WAG injection project. The final goal was to achieve a mobility control foam, for gas profile modification in WAG injector wells. The experimental work was divided in several steps: (1) preliminary screening tests for adequate surfactant selection; (2) mobility reduction tests at average Western Venezuelan conditions; (3) adsorption tests; and (4) a final displacement test in a composite reservoir core using fluids and conditions for the Lagocinco VLE Field. The selected surfactant for the foam was an alpha oleofinsulfonate (AOS) combined with a fluorinated surfactant for added stability to oil. Surfactant-gas co-injection was used in all core displacement tests as injection scheme. The foam achieved a Mobility Reduction Factor (MRF) of 100 at average Western Venezuelan conditions, while at Lagocinco VLE conditions the MRF values were as high as 800. CONGTP Romero, C. 6233 Valero, E.M. 6234 Alvarez, J.M. 6235 Romero, O.M. 6236 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Valero, E.M. 6234 Alvarez, J.M. 6235 Romero, O.M. 6236 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Romero, C. 6233 131052 131052 https://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69543.pdf 0 0 0 0 201974 BVIAPG BVIAPG 2026-03-03 200003107 0 200003107 2026-03-03 01:41:11 2026-03-03 ARCHIVO