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Speaker:   Ruud Weijermars
Harold Vance Department of Petroleum Engineering
Texas A&M University
Title: How Complex Analysis Enables Rapid Engineering of Flooding in Marginal Oil Fields and Fluid Circulation in Geothermal Reservoirs
Time / Date: 4-5 PM Monday, September 9
Location: Blocker 220
Abstract: Flooding operations in smaller oil fields frequently cannot afford (due to limited subsurface data and marginal cost production) the development of advanced numerical reservoir simulations. Complex analysis math tools can help fill this technology gap, providing fast solutions that require as inputs only actual well rate profiles (rate versus time) of injectors and producers. We apply an improved calculus based on conformal mapping to model the sweep pattern of waterfloods in bounded reservoirs. Solutions for streamlines and flood advancement obtained with the new calculus method are validated using an independent but more intricate numerical streamline simulation method. The benchmarked calculus is applied to the Quitman field, a tabular oil reservoir comprising an 18 ft thick payzone of Harris sand interfingering with shales of the Eagle Ford formation. Riemann’s mapping method in combination with the Schottky-Klein prime function is applied to find the complex potentials to describe the flow in the reservoir bound by impervious faults. The improved method can model waterflooding in marginal fields like the Quitman oil field more accurately than with previous calculus methods and can visualize the sweep pattern and compute time-of-flight contours in a simpler and faster fashion than with numerical streamline simulators. The new streamline methods developed are also applied in a reservoir study of the Neal Hot Springs Geothermal Power Plant (Vale, Oregon), history matching tracer test to inversely determine the average porosity and thickness of the geothermal reservoir.
BBQ and Sports Day!
Location: Tiffany Park
Time / Date: 3-7 PM, April 10
firstname.lastname@example.org. The deadline for applications is Feb. 1, 2016.