Sr. Technology Center Scientist
EOG Resources
- Level
- Senior
- H-1B history
- 2 approvals (FY2023)
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Sr. Technology Center Scientist Weatherford, TX Posted: 8/6/2026
Job ID#
11255
Job Category
Engineering
Position Type
Full Time, Regular
Seeking an experienced Laboratory Professional to support advanced rock characterization and core analysis activities within our Weatherford Laboratory. Duties include operating a Scanning Electron Microscope (SEM) system while also supporting broader conventional and unconventional core analysis workflows. The ideal candidate will have strong laboratory experience, mechanical aptitude, analytical discipline, and hands-on familiarity with geological sample handling and core analysis procedures. This position will work closely with geologists, petrophysicists, engineers, alongside laboratory staff to generate high-quality analytical data supporting reservoir characterization, completion optimization, and field development programs across EOG's asset portfolio. The role will also support laboratory programs focused on Chemical Enhanced Oil Recovery (EOR), reservoir fluids characterization, fluid-rock interaction studies, and experimental testing of surfactant, polymer, and other chemical treatment technologies. This role requires both instrument operation and practical laboratory execution in a fast-paced applied research and operations environment.
Primary Responsibilities
SEM & Imaging Operations Operate and maintain Scanning Electron Microscope (SEM) and Energy Dispersive Spectroscopy (EDS) systems. Acquire high-quality secondary electron (SE) and backscatter electron (BSE) images of geological materials, including elemental analysis and mineral identification using EDS workflows. Assist with development and optimization of SEM imaging procedures for unconventional reservoir characterization. Prepare geological samples including core plugs, slabbed core, cuttings, polished mounts and Ion-milled samples including conductive coating and maintaining sample prep equipment Organize and archive analytical images and laboratory data. Core Analysis Support Support routine and specialized core analysis workflows on conventional and unconventional reservoir samples. Assist with laboratory testing including porosity and permeability measurements, fluid saturation analysis, extractions & drying, rock sample preparation, Special Core Analysis Testing Assist with laboratory measurement of reservoir rock properties including wettability, capillary pressure, relative permeability, fluid saturation, and fluid-rock interaction experiments. Support preparation, handling, and preservation of reservoir fluids, produced water, brines, and chemical solutions for laboratory testing. Maintain accurate sample tracking, chain-of-custody, and QA/QC documentation. Laboratory Operations Coordinate analytical priorities and sample workflows with technical staff and project teams. Assist in generating presentation-quality figures, photomicrographs, and laboratory summaries. Support continuous improvement of laboratory workflows, efficiency, and analytical consistency. Work effectively across multiple simultaneous projects and shifting operational priorities. Support laboratory testing programs associated with reservoir fluids characterization, fluid and rock properties, and fluid-rock interaction research initiatives. Assist with calibration, maintenance, troubleshooting, and operation of laboratory instruments used for rock and fluid property measurements. Desired Attributes Strong hands-on laboratory mindset. Willing / able to be on your feet most of the day. Detail-oriented and highly organized. Self-motivated with strong initiative. Ability to learn and adapt to new analytical technologies. Team-oriented with strong communication skills. Capable of