Electrode logging as known in the oil industry is a method for determining the electrical conductivity distribution around a borehole or between two boreholes from the static-field (dc) measurements in the borehole. In this paper , we discuss the reconstruction of the three-dimensional (3-D) conductivity around a borehole in a highly deviated formation with invasion. At this moment, we have not...

Intermittent operation can improve the coefficient of performance (COP) of a ground source heat pump (GSHP) system. In this paper, an analytical solution to analyze the geo-temperature restoration performance under intermittent operation of borehole heat exchanger (BHE) fields is established. For this purpose, the moving finite line source model is combined with the g-function and the superposi...

We describe a new method to simulate 3D borehole resistivity measurements at zero frequency (DC). The method combines the use of a Fourier series expansion in a non-orthogonal system of coordinates with an existing 2D goal-oriented higher-order self-adaptive hpfinite element algorithm. The new method is suitable for simulating measurements acquired with borehole logging instruments in deviated ...

Influenza is an acute respiratory illness that occurs virtually every year and results in substantial disease, death and expense. Detection of Influenza in its earliest stage would facilitate timely action that could reduce the spread of the illness. Existing systems such as CDC and EISS which try to collect diagnosis data, are almost entirely manual, resulting in about two-week delays for clin...

This paper describes the design and implementation of “3D BlockBreaker”, an augmented reality game in the vein of the arcade classic Breakout. Author

Geophysical logs collected from a deep borehole drilled into the North American Craton in Northeastern Alberta shed valuable light on state of stress stable cratons. Observed breakout azimuths rotate between three depth intervals, ranging 100° at 1650-2000 m to 173° 2000-2210 m, and finally 145° bottom. No apparent fractures that might have disturbed field were found. Two potential causes these...

This workshop will be conducted by members of the Exploring Ethical Decision-making in Engineering (E3) Team. The workshop will be an interactive exploration of the meaning of “ethical development” for engineering students. We will introduce participants to a variety of teaching strategies and co-curricular activities that may enhance a students’ ethical development as identified through the Su...

In this paper, an analytical method based on the multiple signal classification (MUSIC) algorithm is applied to three-dimensional (3-D) estimation of target positions using a directional borehole radar. A cylindrical conformal array on a conducting cylinder in a borehole was used for experimental measurements estimating the position of targets. It is also shown that the algorithm provides much ...

This paper presents a theoretical study of the discharge characteristics of slim holes compared to production wells. Assuming that (1) the boreholes feed from an all-liquid zone, and (2) the feedzone pressure and temperature are independent of borehole diameter, calculations have been carried out for a variety of borehole diameters. The wellhead pressurelflowrate relationships for the various b...