Technical Operations | Houston, TX | Full Time, Contract, and Temporary
Interpretation Geophysicist 9011931
The Interpretation Geophysicist is defined as a geoscientist who is working in the area of geophysics primarily but has applied knowledge in geology, geomechanics, and petrophysics. The Interpretation Geophysicist is mainly involved in the structural and stratigraphic interpretation of 3D and 2D seismic data in order to delineate complex subsurface geobodies and to provide geological constraints to the earth model used for depth imaging. He or She is also involved and is expected to lead in the definition of Localized Seismic Imaging workflows aimed at resolving complex difficult to image areas in the subsurface. Leadership in this area of scenario-driven workflows also takes the form of front-facing with clients, driving the collaboration cycle in all areas that involve seismic interpretation though leveraging an established strong understanding of the geophysical processes behind the imaging workflow. The Interpretation Geophysicist is expected to advise the client and team accordingly to offer options to the best possible solutions for superior imaging. He or She will also integrate as many measurements as possible to consolidate that aim, this may include various well data, velocity data, Inversion, lithoclast, CSEM, MT, and Simultaneous Joint Inversion.
Essential Responsibilities and Duties (Technical):
- High competency level in complex 3D structural interpretation at the workstation with “a proven” ability to produce top and base geobodies fit for depth imaging workflows.
- Has a technical grasp on the concepts and purposes of sediment tomography.
- Understands and has a working knowledge of supra-salt tomography, thru-salt tomography, and sub-salt tomography and how it affects seismic imaging.
- Good working knowledge of Full Waveform Inversion and it impacts on seismic imaging.
- Has a clear understanding of how technology can be used to further develop the earth model.
- Advises technical team on the inference of lithology and shallow hazards by setting observed velocity in its proper context.
- Needs to understand the core depth imaging workflow in its entirety. Is an expert at interpreting the intermediate seismic volumes that are produced and clearly understands what they are used for.
- Can explain to a very good level of detail the difference between “flood” migrations i.e. a sediment flood, salt flood or carbonate flood etc. as they contribute to the strategic direction of the imaging project.
- Localized Seismic Imaging: understands the implementation of scenario-driven workflow for reducing imaging uncertainties and increasing confidence in sub-surface events.
- Understands the impact of illumination on event imaging.
- Aware of and capable of driving ray tracing experiments to compliment scenario driven workflow.
- High technical competence in the area of salt tectonics.
- These concepts are to include geomechanics, diapir initiation, 3D structures associated with diapirs and diapir reactivation.
- Knows the difference between passive and reactive diapirism.
- Demonstrates advanced knowledge of the features associated with allochthonous salt tectonics and associated structures.
- Able to describe and articulate the trapping elements of these structures within the context of the petroleum system.
- Understands the interrelationship of structural provinces associated with passive salt margins (i.e. compressive, translation and extensional zones).
- Good grasp of sedimentological processes and able to define likely depositional environments through interpretation of well data, 2D and 3D seismic and individual research.
- Understands basic concepts of stratigraphy and how it relates to the project area.
- Sets the appropriate context of the depositional history regionally for the project area that is under study.
- Able to condition well data for integration within seismic imaging projects. For example, able to represent well logs in a standard way to assess the plausibility of seismic velocity. Uses this knowledge to contribute to rock physics modeling and help control sensible 3D extrapolation away from well locations with horizon constraints. • 2D and 3D Well tie analysis to validate velocity modeling kinematics.
- Understands the value of integrating non-seismic measurements such as regional potential field data and Full Tensor Gradiometry (FTG) – z (vertical) component in the seismic imaging workflow.
- Understands the value of forward modeling of FTG and density data to demonstrate convergence between the field (observed) model and the predicted model (inferred from velocity).
- Is equally above to articulate the meaning of the measurements while accounting for complex 3D structure.
- Bachelors degree in Geology or Geophysics
- 10+ years oil/gas industry.
$45-$55 per Hour Houston TX 77042 6 Month Assignment