Results 131 to 140 of about 291 (154)

Application of Borehole Transient Electromagnetic System in Relief Well Drilling: a Case Study

2021 3rd International Conference on Intelligent Control, Measurement and Signal Processing and Intelligent Oil Field (ICMSP), 2021
In the process of offshore and land drilling, once the blowout out of accident occurs, oil and gas resources will be seriously damaged, which will be easy to cause catastrophic events such as casualties and environmental pollution. Drilling a relief well beyond a certain distance around the blowout well to achieve connection is an effective way to ...
Liu Changzan, Yang Ling, Zhang Chenlu, Dang Bo   +3 more
openaire   +1 more source

Novel Borehole System for Reservoir Monitoring Using Transient Electromagnetics

SPE Middle East Oil and Gas Show and Conference, 2011
Abstract In this paper, we describe a novel transient electromagnetic borehole technology for reservoir monitoring that has important advantages over existing borehole electromagnetic methods. This work is based on computer simulation of a waterflooded reservoir model that demonstrates the efficacy of this technique for reservoir ...
Sushant M. Dutta, Arcady Reiderman, Larry G. Schoonover, Michael B. Rabinovich   +3 more
openaire   +1 more source

Effect of conductive host rock on borehole transient electromagnetic responses

Geophysics, 1989
Abstract Transient electromagnetic (TEM) borehole responses of 3-D vertical and horizontal tabular bodies in a half-space are calculated to assess the effect of a conductive host. The transmitter is a large loop at the surface of the earth, and the receiver measures the time derivative of the vertical magnetic field.
Gregory A. Newman, Walter L. Anderson, Gerald W. Hohmann   +2 more
openaire   +1 more source

Borehole Transient Electromagnetics for Monitoring CO2 Sequestration in Saline Aquifers

Proceedings, 2011
We present a technique for monitoring CO2 migration in an underground gas storage by using a surface-to-borehole transient electromagnetic method (BTEM). As the targeted reservoir consists of a saline aquifer, the main idea is to detect the changes in the electric conductivity that go along with the resistive CO2 displacing the conductive pore fluid ...
K. Spitzer, J. Börner, M. Afanasjew, R. U. Börner, O. Ernst, M. Eiermann   +5 more
openaire   +1 more source

CO2 Injection Monitoring Using Transient Electromagnetic in Ground-borehole Configuration

Journal of Environmental and Engineering Geophysics, 2018
ABSTRACT Using geophysical methods, specifically transient electromagnetic (TEM), for CO2 monitoring is an effective way to detect CO2 diffusion. In this work, a multi-scale finite-difference time-domain (FDTD) algorithm was established to monitor CO2 by defining new iterative relations and approximating boundary conditions, which ...
Kai Li, Huaifeng Sun, Ming Cheng, Jianlei Guo   +3 more
openaire   +1 more source

The influence of a conductive host on two-dimensional borehole transient electromagnetic responses

Geophysics, 1984
Abstract We have computed transient borehole electromagnetic (EM) responses of two-dimensional (2-D) models using a direct and explicit finite-difference algorithm. The program computes the secondary electric field which is defined as the difference between the total field and the primary (half-space) field. The time derivative of the
Perry A. Eaton, Gerald W. Hohmann
openaire   +1 more source

Full Waveform Inversions of Borehole Transient Electromagnetic Virtual Wave Fields and Potential Applications

Journal of Environmental and Engineering Geophysics, 2020
ABSTRACT The transient electromagnetic method (TEM) for boreholes uses fixed source loops to launch at excavation faces, and is able to realize the mobile reception of secondary fields in the boreholes and detections of low-resistance hazards.
Fan Tao, Qi Zhipeng, Yan Bin, Zhao Zhao, Wang Bingchun, Shi Xianxin, Liu Lei, Zhao Rui, Wang Jikuang, Li Bofan, Fang Zhe   +10 more
openaire   +1 more source

The borehole transient electromagnetic response of a three-dimensional fracture zone in a conductive half-space

Geophysics, 1988
Abstract Borehole geophysical methods can be useful in detecting subsurface fracture zones and mineral deposits which are nearby, but not intersected by boreholes. One electrical borehole technique which can be applied to this problem is the surface-to-borehole transient electromagnetic (TEM) method. In this method a transmitting loop
Richard C. West, Stanley H. Ward
openaire   +1 more source

Borehole transient electromagnetic response calculation and experimental study in coal mine tunnels

Measurement Science and Technology
Abstract Water damage seriously threatens the safe production of coal mines, so it is necessary to carry out advanced detection to determine the hydrogeological situation, and the preliminary survey often involves the drilling of on-site drill holes in the tunnel.
Qidi Sun, Hao Ding, Yong Sun, Xiaofeng Yi   +3 more
openaire   +1 more source

Transient electromagnetic fields: their efficient three‐dimensional simulation and application to borehole‐based observation techniques

International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Beijing, China, October 10–13, 2011, 2011
GEM Beijing 2011: International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications Beijing, China. October 10-13, 2011. Transient electromagnetic fields: their efficient three-dimensional simulation and application to borehole-based observation techniques Martin Afanasjew, Jana Borner, Ralph-Uwe Borner, Michael Eiermann, Oliver ...
Martin Afanasjew, Jana Börner, Ralph‐Uwe Börner, Michael Eiermann, Oliver Ernst, Klaus Spitzer   +5 more
openaire   +1 more source