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SUNMONTUEWEDTHUFRISAT
Events for October 28, 2005
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On Campus Freshmen Admission Interviews continue...
Fri, Oct 28, 2005
Viterbi School of Engineering Undergraduate Admission
Receptions & Special Events
Admission Interviews are available to freshman applicants throughout the Fall until December 16, 2005. Freshman applicant interviews are not required as part of the admission process, however we would like to meet as many of our applicants as possible. All interview appointments are scheduled online.http://viterbi.usc.edu/admission/freshman/interviews/
Audiences: Freshmen Applicants for Fall 2006
Contact: Viterbi Admission
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On Campus Freshmen Admission Interviews continue...
Fri, Oct 28, 2005
Viterbi School of Engineering Undergraduate Admission
Receptions & Special Events
Admission Interviews are available to freshman applicants throughout the Fall until December 16, 2005. Freshman applicant interviews are not required as part of the admission process, however we would like to meet as many of our applicants as possible. All interview appointments are scheduled online.http://viterbi.usc.edu/admission/freshman/interviews/
Audiences: Freshmen Applicants for Fall 2006
Contact: Viterbi Admission
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Graduate Seminar
Fri, Oct 28, 2005 @ 01:45 AM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Mork Family Department of Chemical Engineering and Materials Science
Graduate Seminar“Integration of Laboratory, Modeling and Field Studies to Evaluate a Waterflooded Vuggy Carbonate Reservoir for Application of Improved Oil Recovery Methodsâ€ÂDr. Kaveh Dehghani
ChevronAbstract A waterflooded vuggy carbonate reservoir in Permian Basin was considered for application of Improved Oil Recovery (IOR) methods. An integrated laboratory, modeling and field study was used for the evaluation process. The following shows different parts of the evaluation process: A methodology was developed to model and successfully history match the primary and waterflood phases in a 15 well, 100 acre vuggy portion of the field. This method is based on a derived log trace of secondary porosity calculated by subtracting sonic porosity (matrix only) from a core calibrated total porosity transformed from Density and Neutron-logs. Log signatures of vugular intervals were developed recognizing significant differences in matrix and total porosity. A detailed geostatistical distribution of total porosity was first generated and permeability was assigned using a cloud transform of core data from nearby wells. Two geostatistical distributions of secondary porosity with different correlation lengths were then generated using the developed secondary porosity trace. Vugular zones were assumed to have a secondary porosity of 8% or greater. These models were superimposed on the permeability cube by assigning exceptional high permeability values to the vuggy zones. Using a general scale up method, the detailed permeability cubes were scaled-up for simulation studies. The models incorporating vuggy permeability distributions showed a far superior history match of primary and waterflood performance than those without vuggy permeability distributions. Good history match was also obtained on individual well basis. Sensitivity of the match to vuggy zone permeability and correlation length was analyzed. Results from these simulation runs provide insight into the spatial distribution and permeabilities of the vuggy zones. During the process of this examination it was recognized that this reservoir was a potential candidate for the steam injection process. Thin zones of vuggy high porosity and high permeability within the main pay interval have threatened the effectiveness of waterflood, leaving a major portion of oil by-passed in the lower permeability matrix. Feasibility of increasing recovery by steam injection in this part of the field was investigated using thermal compositional models. The analysis of the results from this modeling practice showed that primary recovery produced 14% of OOIP and waterflood added a 12% incremental recovery. The results also showed that combining a short steamflood cycle followed by a blow-down cycle from all wells (including the injectors) resulted in a big kick in both oil production rate and cumulative oil production curves (e.g., 2.5 years of flood followed by 2.5 years of production). The best scenario of well configuration was 10 acre 5 spots with incremental oil recovery of 18% of OOIP. A preliminary economic calculation showed steam injection to be economically feasible. We also conducted laboratory experiments on a core sample from this reservoir in order to quantify the recovery mechanisms. These comprise thermal expansion, thermally enhanced solution gas drive, vaporization, and in-situ steam drive. Computed Tomography (CT) imaging of a miscible flood was used to characterize the connectivity of the vugs and matrix rock. A series of blow-down tests were then conducted by heating the core to 300 â—â¹ F. The backpressure regulator on the system was set just above the bubble point of the oil at 300 â—â¹ F. The pore pressure was then reduced at a constant rate from one end of the core sample. The first blow-down test was with the core at initial oil saturation with pressure reduction from the top of the sample; the second at initial oil saturation with pressure reduction from the bottom; and the third at residual oil saturation to water with pressure reduction from the top. The volumes and compositions of the produced fluids were measured in all the blow-down tests. The initial and final oil saturation distribution for the second blow-down experiment was also CT imaged. The CT images reveal that the core sample contains vugs, high permeability matrix, and low permeability matrix rock; and that the vugs are connected through the high permeability matrix. The blow-down experiments show that 50-68% of the oil is recovered; with 8-20% due to thermal expansion, 20-24% due to thermally enhanced solution gas drive, 12-16% due to dry distillation, and 8-10% due to in-situ steam drive.Friday, October 28, 2005
Refreshments at 1:30 p.m. â€" HED Lobby
Seminar at 1:45 p.m.
HED 116
The Scientific Community is Cordially Invited
Location: Hedco Pertroleum and Chemical Engineering Building (HED) - 116
Audiences: Everyone Is Invited
Contact: Petra Pearce
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USC Transfer Day
Fri, Oct 28, 2005 @ 09:00 AM
Viterbi School of Engineering Undergraduate Admission
Workshops & Infosessions
Comprehensive, half-day programs that provide information about financial aid and transfer admission at USC. These include a campus tour and the opportunity to learn specific details about engineering at USC. Viterbi transfer counselors will be available for individual coursework advisement on a first-come, first-serve basis in the afternoon following the program (transcripts required for advisement).RSVP: Please call the Admission Center at (213) 740-6616
Location: USC Admission Center
Audiences: Prospective transfer students and transfer advisors
Contact: Undergraduate Admission
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Congestion Control in Differentiated Services Networks Using Fuzzy Logic
Fri, Oct 28, 2005 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
CONTROLS SEMINAR"Congestion Control in Differentiated Services Networks Using Fuzzy Logic"Andreas Pitsillides Associate Professor of Computer ScienceUniversity of CyprusAbstract:Network management and control is a complex problem that requires robust, possibly intelligent, control methodologies to obtain satisfactory performance. Active Queue Management (AQM) mechanisms have been introduced to assist the TCP congestion control. We briefly discuss the modelling and control approach followed by a number of representative AQM schemes, and address possible limitations to meet the diverse needs of today's Internet. Fuzzy Logic Control is adopted due to its reported strength in controlling non-linear systems using linguistic information. Emphasis is given towards the ability of effectively controlling the congestion in TCP/IP networks. The talk will mainly focus on differentiated services. The provision of quality of service (QoS) in a differentiated services (Diff-Serv) environment requires an adequate differentiation between high-priority/assured and low-priority/best-effort classes of service in the presence of congestion, giving priority/preference to assured-tagged traffic. For this purpose, a new active queue management scheme, implemented within the Diff-Serv framework, is presented that provides congestion control in TCP/IP networks using a fuzzy logic control approach. The proposed fuzzy logic approach for congestion control allows the use of linguistic knowledge to capture the dynamics of nonlinear probability marking functions, uses multiple inputs to capture the dynamic state of the network more accurately, and can offer effective implementation. A simulation study over a wide range of traffic conditions - considering multiple bottleneck links - shows that the fuzzy logic based controller outperforms the Random Early Detection (RED) implementation for Diff-Serv in terms of link utilization, packet losses, and queue fluctuations and delays. Also, the proposed scheme can offer better differentiation among assured and best-effort traffic, thus it can provide better QoS to different types of data streams, such as TCP/FTP traffic or TCP/Web-like traffic, whilst maintaining high utilization.Bio:Andreas Pitsillides, Associate Professor of Computer Science, University of Cyprus (UCY), spent 6 years in industry and 18 years in academia (7 with Swinburne University of Technology, Melbourne, Australia). Serves as Chairman of the Cyprus Research and Academic Network (CYNET). Andreas heads the Networks Group. His research interests include fixed and mobile/wireless networks, Internet technologies and their application in Mobile e-Services, especially e-health. He has a particular interest in adapting tools from various fields of applied mathematics such as control theory, and computational intelligence to solve problems in computer networks. Published over 120 referred journal, conference papers and book chapters, participates in numerous EC and locally funded research projects, presented invited lectures at major research organisations, short courses at international conferences and short courses to industry. Regularly serves on international conference executive committees (e.g. INFOCOM 2001-2003, and ICT98), general chair, technical committees, guest co-editor, invited speaker, and as a regular reviewer for conference and journal submissions. Andreas is also a member of the International Federation of Automatic Control (IFAC) Technical Committee (TC) on Networked Systems and the IFIP working group WG 6.3. (http://www.cs.ucy.ac.cy/networksgroup)Host: Prof. Petros Ioannou, x04452
Location: Hughes Aircraft Electrical Engineering Center (EEB) - -248
Audiences: Everyone Is Invited
Contact: Rosine Sarafian
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EE 201L Supplemental Instruction
Fri, Oct 28, 2005 @ 12:00 PM - 01:00 PM
Center for Engineering Diversity
Workshops & Infosessions
Supplemental Instruction is four hours/week of workshops that will review lecture, homeworks, and key concepts from the material and conduct midterm review and final reviews. Our workshop leader for this semester will be Christina Carter-Brown, a CECS major who has excelled in the course and many other EE courses. This semester, workshop hours, days, and locations will be:Mondays 3:30-5:30pm RTH 222
Wednesdays 3:30-5:30pm RTH 222
Fridays 12:00-1:00pm RTH 222 (HW review session)Location: Ronald Tutor Hall of Engineering (RTH) - 222
Audiences: Undergraduates
Contact: Center for Engineering Diversity
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Origins of CO2 and Its Accumulation in Sedimentary Basins
Fri, Oct 28, 2005 @ 01:00 PM - 02:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker:
Tongwei Zhang, Ph.D.
Power, Energy and Environmental Research Center Caltech
Covina, CA Abstract: The content of CO2 in natural gas is in a wide range from less than 0.1% to as high as 99.6%, and high CO2 concentrations (>20%) in natural gas are encountered in many sedimentary basins. The presence of CO2 would reduce the resource value by lowering methane content and increase the infrastructure to remove and dispose it from natural gas to prevent the corrosion. For the risk assessment of encountering high concentration of CO2 gases in natural gas accumulation in a specific sedimentary basin, gas geochemistry provides an effective tool to discriminate the different origins of CO2 in natural gas.
In general, there are four major sources for CO2 generation in sedimentary basins. They are organic matter decomposition (oil, kerogen ), thermal decomposition of carbonate minerals (calcite, dolomite and so on), mantle degassing/ exsolution from magmas and hydrocarbon oxidation by thermochemical sulfate reduction.
A successful model to identify different origins of CO2 in natural gas by means of gas geochemistry approach will be presented from the geological case study of Huanghua depression, China. CO2 content in natural gas has a so wide range from 30ppm to 99.6% in the depression that understanding high-content CO2 origin is of very significant importance both in economic and academic aspects. According to the characterization of gas geochemistry and the fault development, we have determined that CO2 in Huanghua depression has three kinds of origins, i.e. organic matter decomposition, carbonate decomposition and mantle degassing.
Also, it is the first time to successfully simulate petroleum-anhydrite reactions to generate H2S and CO2 in the laboratory and found that the presence of magnesium ions in solution is crucial for sulfate reduction. The complex formation of Mg(OH)2:MgSO4 in the co-existence of magnesium and sulfate ions results in increasing [H+] concentration of the solution at high temperature of laboratory's conditions. With Talc-silica as mineral buffering, we experimentally determined that the yield ratio of CO2/H2S in mole is about 1.33 while CaSO4 is almost totally reduced by octane in the presence of magnesium ion catalyst.Location: Kaprielian Hall (KAP) - 156
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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CSCI 101 Supplemental Instruction
Fri, Oct 28, 2005 @ 04:00 PM - 06:00 PM
Center for Engineering Diversity
Workshops & Infosessions
Supplemental Instruction is four hours/week of workshops that will review lecture, homeworks, and key concepts from the material and conduct midterm review and final reviews. Our workshop leader for this semester will be Jose Medrano, a CECS major who has excelled in the course and many other CSCI courses. This semester, workshop hours, days, and locations will be:Mondays 5:30-6:30pm RTH 222
Wednesdays 5:30-6:30pm RTH 222
Fridays 4:00-6:00pm RTH 222Location: Ronald Tutor Hall of Engineering (RTH) - 222
Audiences: Undergraduates
Contact: Center for Engineering Diversity
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EGSA General meeting
Fri, Oct 28, 2005 @ 06:30 PM - 09:15 PM
Viterbi School of Engineering Student Organizations
Receptions & Special Events
A fun filled Evening with Indian and Chinese food (FREE) followed by games like Bingo, Mini Pool Tournament, Twister, Mini golf and more than $300 worth of Book store Gift Certificate and Movie tickets to be won. SO join us to meet and greet your fellow Graduate Engineering students and your department senators.
Location: Norman Topping Student Activities Center (TSC) - Basement
Audiences: Engineering Graduate Students
Contact: Amit Desai
