Transient calculation of pressure waves in a well induced by tubular expansion

Shell has developed a novel mono-diameter well concept for oil and gas wells as opposed to the traditional telescopic well design. A Mono- diameter well contains multiple casing sections with the same internal diameter. This is achieved by expansion of the casing sections concerned using an expansion cone. Since the well is drilled in stages and...

Injectivity errors in simulation of foam EOR

Injectivity is a key factor in the economics of foam enhanced oil recovery (EOR) processes. Poor injectivity of low-mobility foam slows the production of oil and allows more time for gravity segregation of injected gas. The conventional Peaceman equation (1978), when applied in a large grid block, makes two substantial errors in estimating foam...

Foam for Enhanced Oil Recovery: Modeling and Analytical Solutions

Foam increases sweep in miscible- and immiscible-gas enhanced oil recovery by decreasing the mobility of gas enormously. This thesis is concerned with the simulations and analytical solutions for foam flow for the purpose of modeling foam EOR in a reservoir. For the ultimate goal of upscaling our modeling results to foam EOR in reservoir, it is...

Simulation and Optimization of Foam EOR Processes

Chemical enhanced oil recovery (EOR) is relatively expensive due to the high cost of the injected chemicals such as surfactants. Excessive use of these chemicals leads to processes that are not economically feasible. Therefore, optimizing the volume of these injected chemicals is of extreme importance. We intend to maximize the long-term...

Program for the computation of axisymmetric supersonic flow around launch type vehicles, based on the method of characteristics

In this report a program in ALGOL (CDC-3300, MBOS (3,2) operating system) is described for the computation of the supersonic flow of a thermally and calorically perfect gas around axisymnetric bodies. Computational details are given and some numerical results are presented. Emphasis is placed on the organization of the program. For a specific...

Propagation of tides and similar waves

Development of mathematical methods (digital and analog) for the computation of tides in seas and estuaries. This work is the basis for the numerical tidal computations, as well as the development of the analog computer DELTAR to predict tides in estuaries.