tailieunhanh - Reservoir Formation Damage Episode 2 Part 8

Tham khảo tài liệu 'reservoir formation damage episode 2 part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Formation Damage by Organic Deposition 407 ĩ o fl- A 1000 2000 o BEREA SANDSTONE 100 MESH Ô DICKITE WISCONSIN DOLOMITE DOLOCRON V OTTAWA SAND SUPER X. 325 MESH O CALCITE DOVER CHALK KAOLIN MINERAL ILLITE BEAVER S BEND o ALUMINA Ô 0 EQUILIBRIUM ASPHALTENE CONCENTRATION ppm Figure 14-33. Adsorption isotherms for asphaltenes on clay and mineral surfaces from toluene Dubey and Waxman 1991 SPE reprinted by permission of the Society of Petroleum Engineers . Then assuming that all oil is in contact with the porous media the surface excess of species i can be expressed as n- n x - x i asphaltene or oil 14-8 They assume that the theory is applicable for both mono- and multi-layer adsorption. A balance of the oil and asphaltene adsorbed over the pore surface yields 1 _ x x x 2 n mx m2 14-9 408 Reservoir Formation Damage Figure 14-34. Hysteresis of adsorption desorption isotherms for asphaltenes on kaolin from toluene Dubey and Waxman 1991 SPE reprinted by permission of the Society of Petroleum Engineers . Equilibrium concentration of asphaltenes mg 1 Figure 14-35. Adsorption isotherm for Cerro Negro asphaltenes on inorganic material surface from toluene at 26 c reprinted from Journal of Fuel Vol. 74 Acevedo s. Ranaudo M. A. Escobar G. Gutierrez L. Ortega p Adsorption of Asphaltenes and Resins on Organic and Inorganic Substrates and Their Correlation with Precipitation Problems in Production Well Tubing pp. 595-598 1995 with permission from Elsevier Science . Formation Damage by Organic Deposition 409 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 Equilibrium concentration of asphaltenes mg L Figure 14-36. Adsorption isotherm for Ceuta asphaltenes on inorganic material surface from toluene at 26 c reprinted from Journal of Fuel Vol. 74 Acevedo s. Ranaudo M. A. Escobar G. Gutierrez L. Ortega p. Adsorption of Asphaltenes and Resins on Organic and Inorganic Substrates and Their Correlation with Precipitation Problems in Production Well Tubing pp. 595-598 1995 .

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