At the pre-survey stage, we use 3D model builders to create as accurate and complex geo-models as the existing information allows. We simulate a full EM survey, and we evaluate the chances for a successful survey. A well-planned survey is the key to success.
Our inversion schemes can handle any survey layout and anisotropic media, enabling us to depth-convert any EM data set, acquired with any geometry - anywhere in the world. In 3D inversion of 3D EM data, we automatically include the broadside field, which provides valuable extra information compared withtraditional inline field inversions.
An important step in the analysis phase is the inclusion of constraints. We can use structural information from seismic data and resistivity information from well data to guide the inversions. Subsequently, we interpret the inverted model and build a geo-model hypothesis that we test using modelling. This important step ensures that we test the robustness of the inversion results and the subjectivity that lies in any interpretation.
Our 1800 node cluster ensures that we have the capacity to turn projects round quickly and with sufficient iterations to ensure a geologically meaningful result.
Technology and products
- Our 2.5D inversion is a quick and robust way to obtain resistivity images for the early stage interpretation and integration of EM data.
- Our 3D inversion reconstructs 3D resistivity cubes taking full advantage of the combined resolving power of inline and broadside data.
- Our inversion schemes allow integration through constraints from seismic and well logs.
- Our modelling schemes are quick and accurate. We can simulate the EM field over a 2D or 3D Earth model with any complexity.
- Together with inversion and pre-survey sensitivity study reports, we can provide all data and models in SEG-Y.