TY - JOUR
T1 - Surface-borehole electric potential survey in layered media and its applications
AU - Su, Ben Yu
AU - Fujimitsu, Y.
AU - Song, Jian Yong
N1 - Funding Information:
Foundation item: Project supported by Global Center of Excellence in Novel Carbon Resource Sciences, Kyushu University, Japan Received date: 2011−08−19; Accepted date: 2011−10−28 Corresponding author: SU Ben-yu, PhD; Tel: +80−3906−5518; E-mail: subenyu@yahoo.cn
PY - 2012/4
Y1 - 2012/4
N2 - The method in which a source is set on the surface and electric potential is received in the borehole is called surface-borehole electric potential technique. Technique of surface-borehole electric potential was employed to study electric response of layered formation. The electric potential was obtained by solving Poisson equation with finite difference method. In the course of calculation, forward modeling with finite difference method was realized by adopting bandwidth non-zero storage technique and the incomplete Cholesky conjugate gradient method. The results show that method of surface-borehole can acquire anomalous electric potential corresponding to geo-electric layers. In addition, application of appropriate mathematical operator can improve the resolution. Moreover, overburden low resistivity layers have severe influence on measuring results of surface-borehole electric potential. However, bottom low resistivity layers play a positive role in the measurement.
AB - The method in which a source is set on the surface and electric potential is received in the borehole is called surface-borehole electric potential technique. Technique of surface-borehole electric potential was employed to study electric response of layered formation. The electric potential was obtained by solving Poisson equation with finite difference method. In the course of calculation, forward modeling with finite difference method was realized by adopting bandwidth non-zero storage technique and the incomplete Cholesky conjugate gradient method. The results show that method of surface-borehole can acquire anomalous electric potential corresponding to geo-electric layers. In addition, application of appropriate mathematical operator can improve the resolution. Moreover, overburden low resistivity layers have severe influence on measuring results of surface-borehole electric potential. However, bottom low resistivity layers play a positive role in the measurement.
UR - http://www.scopus.com/inward/record.url?scp=84862691993&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862691993&partnerID=8YFLogxK
U2 - 10.1007/s11771-012-1116-0
DO - 10.1007/s11771-012-1116-0
M3 - Article
AN - SCOPUS:84862691993
SN - 1005-9784
VL - 19
SP - 1109
EP - 1115
JO - Journal of Central South University of Technology (English Edition)
JF - Journal of Central South University of Technology (English Edition)
IS - 4
ER -