STUDY OF THE SURFACTANT EFFECT ON THE STABILIZED OIL-WATER EMULSIONS (LABORATORY STUDIES)

• Main Author: PRICILIA MINARIA NIM: 222 10 022, SYLVIA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/20565
• Institution: Institut Teknologi Bandung

One of the problems that often occur in the field is the appearance of a stable emulsion from the production process. Emulsion is a mixture of liquid particles <br /> <br /> <br /> (the dispersed phase) and other liquids (the dispersing phase). The existence of an emulsion from the production process has an influence on a production in the field. This research will attempt demulsification process against emulsion sample from field X using surfactant as a demulsifier. This process is expected to help improve <br /> <br /> <br /> oil production at field X. This research aim to determine the effect of surfactant on oil-water emulsions stabilized. In this research also determine the oil volume can be separated from the emulsions using surfactant as a demulsifier. Demulsification process was conducted by a laboratory studies with a trial and <br /> <br /> <br /> error in surfactant type, concentration of surfactant and volume of surfactant mixed with the emulsions sample. Surfactant used was a local surfactant, i.e. <br /> <br /> <br /> surfactant S7A, S7A, S12A, S13A*, S14A*, S15A, S15B, and S16A, which are a non-ionic surfactants. The surfactant used has been applied for Enhanced Oil Recovery (EOR) process for surfactant flooding in some field. The trial and error conducted to determine the surfactant type that optimum work to the emulsions sample. As the results of the laboratory studies can be concluded that the tested surfactant able to separate the oil from the emulsion. The surfactant which has the best performance profile of the emulsion sample from field X was surfactant S13A* and S15A. The surfactant S13A* and S15A have a low optimum concentration compared with the others surfactant that is 0.5% (wt/wt). Surfactant S13A* is able to separate oil from the sample to 70%, whereas the S15A surfactant able to separate oil from the sample at 75%. Surfactants S13A* will work at optimum <br /> <br /> <br /> volume ratio of 1:4 emulsions of surfactant, while the optimum surfactant S15A work on 1:2 ratio. The lowest emulsion viscosity value after mixed with the surfactant S13A* is 3.41 cp, whereas the surfactant S15A is 2.01 cp.