|Location||Houston, United States|
|Date Posted||April 6, 2019|
The Seismic Interpreter Geophysicist is defined as Geoscientist who is a key technical contributor working in the area of Geophysics primarily, but has also applied knowledge in geology, geomechanics and Petrophysics and belongs to the Schlumberger Technical Community. The Seismic Interpreter Geophysicist is mainly involved in structural and stratigraphic interpretation of 3D and 2D seismic data to delineate complex subsurface geobodies in order to provide geological constraint to the earth model used for depth migrations. He or She is also involved and is expected to lead in the definition of Localized Seismic Imaging work flows aimed at resolving complex difficult to image area in the sub-surface. 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 Seismic Interpreter 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, lithoclass, CSEM, MT and simultaneous Joint Inversion.
He/She reports to the Supervisor: Technical Team Lead /Geosolutions Project Manager/Center Manager
Roles and Responsibilities:
An Integral member of a multi-disciplinary team that operates within WesternGeco Geosolutions responsible for leading the incorporation of geological concepts into the depth imaging work flow.
Keeps the technical team lead / GSPM or Center manager appraised of progress to pre-planned time line and advises of risk points to achieving this time line.
Has a technical grasp on the concepts and purposes of Sediment depth Tomography. Understands and has a working knowledge of supra-salt tomography, thru-salt tomography and sub-salt tomography and how it effects seismic imaging.
A good working knowledge of Full Waveform inversion and it impacts on seismic imaging. Has a clear understanding of how the technology can be used to further develop the earth model. Advises technical team on 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 and is 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 such contributes to the strategic direction of the imaging project.
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 diapirsim. 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 the Petroleum system. Understands the inter relationship of structural provinces associated with passive salt margins i.e. compressive, translation and extensional zones).
Be able to practically describe the overall implications of salt to the petroleum system as well as setting the bar for associating of plausible velocities with lithology. Very much needs to be a leading element in this part of the project.
Good grasp of sedimentological processes and able to define likely depositional environments through interpretation of well data, 2D and 3D seismic and individual research.
Required to have a good working knowledge of the specific geological settings associated with salt dominated petroleum provinces from around the world.
Seismic data interpretation at the workstation to be used fundamentally for advanced isotropic or anisotropic velocity earth model building and seismic Imaging.
Required skill sets include:
Accurate three-dimensional high fidelity sub-surface mapping of complex sub-surface geobodies though iteration of successive images output from the depth imaging workflow.
Clear demonstration of competency in 3D surface generation and editing with a view specifically defined for depth imaging.
Fully understands the geo rules that underpins WesternGeco’s Seismic Velocity Modeling suite (SVM).
Able to identify and drive efficiencies in the workflow for continuous improvement as demanded by the unique aspects of the sub-surface imaging project.
Uses established best practice for independent QA and QC of completed 3D surfaces that describe such complex geobody boundaries (i.e. need little or no supervision)
Clearly demonstrates ability to independently build structural frameworks viable for velocity model population in SVM.
Understand and employs the best practice for localized editing of the structural framework.
Understands key responsibility to adhere to established best practice and conducts necessary peer reviews with entire team prior to submission for migration.
Regularly publishes work to Intouch to capture innovative workflow updates.
Able to condition well data for seismic integration within projects. Tasks may include data loading, well log editing to remove noise, petrophysical analysis (lithology identification and understands plausible velocity range through interpretation of well logs). Uses this knowledge to contribute to rock physics modeling and help control sensible 3D extrapolation away from well locations.
Well tie analysis to validate velocity modeling by integration of well derived and seismic derived velocity fields and trends, depth stretching to update horizons to latest velocity model.
Understands basic concepts of stratigraphy and how it relates to the project area. Sets the appropriate context of the project area regionally that is under study.
Localized Seismic Imaging – understands implementation of scenario driven workflow for reducing imaging obscuration and increasing confidence in sub-surface events.
Understand the impact of illumination on event imaging. Aware of and capable of driving ray tracing experiments to compliment scenario driven workflow.
Multi-measurements – Understands the value of integrating non-seismic measurements such as wells, regional potential field data, Full Tensor Gradiometry FTG) – Z (vertical) component, regional geographic and cultural data 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 meaning of the measurements while accounting for complex 3D structure.
Complies with applicable company policies, including Personnel, Quality System and Health, Safety and Environment standards and procedures.
Successfully completes required safety training and maintains 100% certification in Quest.
Employees may be assigned other duties, in addition to or in place of those described above, and any duties are subject to change at any time, according to the needs of the location or Company.
Qualifications and Experience:
Master's Degree or other higher Degree in Engineering or Pure or Applied Science. Preferred MSc or MA in Geoscience. If MS, minimum 1 year of related experience. If PhD with 0+ years of related experience. If not, a diploma with 9-16 years related work experience
Experience in the log acquisition/ processing /interpretation of Geophysics or Petrophysical data in a commercial environment is preferred.
Competencies to be kept current:
Can handle projects of medium-high complexity
Creative and innovative in providing quality solutions, advanced skills in analysis and design of solutions
Expert skill in techniques, tools, processes and practices within area of expertise
Advanced Decision Making: Involved in developing, modifying and executing company policies.
Strategic approach to identifying potential future problems. Acts consistently over the long term to create opportunities or avoid potential risks.
Contributes to the team/area to optimum performance levels through leadership abilities
Establishes goals in order to meet objectives.
Provides strategic direction and support to area.
Advanced mentoring skills
Manages the coordination of activities of defined area with responsibility for costs, methods and personnel.
Advanced oral and written communication skills: Frequently interacts with peer groups, subordinates and senior management within and externally from area advising on area of responsibilities. Interaction normally involves the ability to gain confidence, persuade and give complex presentations of information concerning specific projects/schedules etc.
Inspires belief in or commitment to an idea by confidently and articulately communicating a vision. An inspirational presenter who is able to cope with any audience and adapt presentation on the move.
Customer oriented, actively communicates with internal and/or external customers to ensure service level exceeds expectations.
Ensures that the organization understands and meets changing market needs, interpreting external influences and setting long-term customer strategy.
Multidisciplinary integration capabilities of information in the geosciences environment with other disciplines for synergy enhancement.
Good understanding of company strategy.
Ability to analyze area in the identification of risks and methods of applying company strategy.
Ability to build and implement strategic plans for a project.
Advanced understanding of and practice of the principles of Quality Management
Good understanding of own segment's range of services and products, and the relationship to other parts of OFS.
Knows strengths, competitive advantage and position in market place
Actively participates in Oil & Gas E&P; forums, symposiums, etc.
Promotes standards and develops procedures to improve quality
Is familiar with the way our customers work and can apply this to deliver improvements of commercial benefit to SLB
Focuses on efficient use of resources and facilities to achieve organizational goals from local business demands.
Managing the Assigned Tasks
Has advanced functional and technical skills required to do the job.
Capable of setting of own and team's objectives and identifies key requirements.
Balances priorities and interfaces with internal/external customers and stakeholders to ensure expectations are met.
Able to identify, assess and manage risk effectively in a project-based environment.
Develops plans and critical paths for complex projects.
Co-ordinates and liaises between projects which involve cross-disciplinary resources, monitoring a number of different projects at different stages of the project cycle, and checking achievements to key milestones. Ensures objectives are achieved within budget.