Effect of steel-cased wells on EM wave propagation for hydrocarbon detection

Effect of steel-cased wells on EM wave propagation for hydrocarbon detection

Citation Author(s):
Rong
Liu
School of Computer Science and Engineering, Central South University, Changsha, 410083, China.
Submitted by:
Rong Liu
Last updated:
Thu, 10/03/2019 - 10:09
DOI:
10.21227/k9ek-3253
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Abstract: 

In controlled source electromagnetic (CSEM) modeling with well casings, it is common to assume that the current is flowing vertically in each casing, due to the large conductivity contrast between casings and their host media. This assumption makes the integration of the tensor Green's function relating the induced fields to source currents simple, since only the z-z component of the tensor needs to be considered. However, in practice, it can be improper to neglect the horizontal current effects in the casing without a close examination.

Instructions: 

we developed a 3D forward modeling algorithm with the ability to include the effects of horizontal currents. In our algorithm, the casings are subdivided into small segment, with each treated as an electric dipole source, and the induced secondary electric fields can be calculated through the integration of entire tensor Green's function of uniform half space over volumes of each segment.

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[1] Rong Liu, "Effect of steel-cased wells on EM wave propagation for hydrocarbon detection", IEEE Dataport, 2019. [Online]. Available: http://dx.doi.org/10.21227/k9ek-3253. Accessed: Apr. 03, 2020.
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doi = {10.21227/k9ek-3253},
url = {http://dx.doi.org/10.21227/k9ek-3253},
author = {Rong Liu },
publisher = {IEEE Dataport},
title = {Effect of steel-cased wells on EM wave propagation for hydrocarbon detection},
year = {2019} }
TY - DATA
T1 - Effect of steel-cased wells on EM wave propagation for hydrocarbon detection
AU - Rong Liu
PY - 2019
PB - IEEE Dataport
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Rong Liu. (2019). Effect of steel-cased wells on EM wave propagation for hydrocarbon detection. IEEE Dataport. http://dx.doi.org/10.21227/k9ek-3253
Rong Liu, 2019. Effect of steel-cased wells on EM wave propagation for hydrocarbon detection. Available at: http://dx.doi.org/10.21227/k9ek-3253.
Rong Liu. (2019). "Effect of steel-cased wells on EM wave propagation for hydrocarbon detection." Web.
1. Rong Liu. Effect of steel-cased wells on EM wave propagation for hydrocarbon detection [Internet]. IEEE Dataport; 2019. Available from : http://dx.doi.org/10.21227/k9ek-3253
Rong Liu. "Effect of steel-cased wells on EM wave propagation for hydrocarbon detection." doi: 10.21227/k9ek-3253