Land EM survey feasibility study
With our many years of experiences in land TEM technology development and wide applications, we can provide oil or service companies the land EM modeling/survey feasibility studies they require. The following study areas of land EM modeling/survey feasibility are available for clients to choose from:
1. 1-D Time Domain Modeling and Survey Design Feasibility Study
We can use the LOTEM (Long Offset Transient EM) survey configurations to model the electrical field and magnetic field responses from the 1-D reservoir isotropic or anisotropic resistivity model. The source will be a ground wire dipole current source, and receiver will be electrical dipole and magnetometers along the survey line. The modeling study will produce the optimum source offset distance and source moment, optimum receiver dipole moment and spacing along the survey profile as well as the time window for the data acquisition to meet the survey objectives.
2. 3-D Time Domain Modeling and Survey Design Feasibility Study
Using the reservoir information provided by clients, we can build a 3D reservoir resistivity model. We will then use our 3D TEM modeling software to model the responses of the three electrical components and three magnetic components over the 3-D reservoir resistivity model. The 3-D modeling study will use the Magnitude Versus Offset (MVO) concept to analyze the anomaly amplitude and optimum source and receiver offset distance. The survey geometry will be the LOTEM survey configurations. The source will be a ground wire dipole current source, and receiver will be electrical dipole and magnetometers along the survey line. The 3-D modeling results will give us a realistic anomaly magnitude on the surface across the reservoir and produce the optimum source offset distance and source moment, the time window for the data acquisition, and the optimum receiver dipole moment and spacing along the survey profile.
3. Field Noise Evaluation
Visit survey site to inspect noise sources
Background noise measurement and analysis on proposed survey lines/area
Background noise measurement and analysis of the target area