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Principal Petrophysicist

Job in Houston, Harris County, Texas, 77246, USA
Listing for: Tallgrass
Full Time position
Listed on 2026-05-16
Job specializations:
  • Engineering
    Environmental Engineer, Oil & Gas, Geology / Geoscience
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below

The Principal Petrophysicist will apply subject matter expertise to carbon sequestration projects in feasibility and development stages. Additionally, acts as a subject matter expert in rock mechanics. This role supports and collaborates with a multidisciplinary subsurface sequestration development team.

Responsibilities
  • Expertise in core retrieval/handling and design/evaluation of conventional and special core analysis programs including routine core analysis, capillary pressure, relative permeability, geomechanics, formation damage, etc.
  • Support exploration and development teams in efforts to evaluate new strategic assets.
  • Proactively collaborate to progress subsurface characterization of prospective intervals, develop subsurface appraisal plans, and support advanced development optimization reservoir studies, in support of corporate and departmental objectives.
  • Execute feasibility studies, technology evaluations, and conceptual designs as required to support client projects or initiatives.
  • Support efforts within the multidisciplinary subsurface teams, projects team and operations personnel to ensure compliance.
  • Mentor staff by providing guidance, instructions and expert level technical advice.
  • Foster a positive open work environment, systems approaches and disciplined execution of all assigned tasks.
  • Conduct bids for services as required.
  • Create petrophysical and geomechanics workflows to develop petrophysical models and integrate core data analysis.
  • Collaborate with a wide variety of people with tact, courtesy, and professionalism.
  • Speak clearly, both in person and by telephone, using a high level of verbal skills and listen carefully.
  • Maintain a regular, dependable attendance and a consistently high level of performance.
  • Will work non-traditional hours as needed.
  • Maintain a high regard for personal safety, for the safety of company assets and employees, and the public.
  • Other daily, weekly, monthly or special project duties as identified and defined.
  • Other duties as assigned.
Education
  • Bachelor's degree in Geophysical Sciences, Geology, Mathematics, Physics, or Engineering
Experience / Specific Knowledge
  • Requires a minimum of 7-10 years of related industry experience in Petrophysics.
  • Experience worked in multiple basins.
  • Expert knowledge of conventional rock petrophysical workflows including calculating clay volumes, lithologies, saturations, porosities, permeabilities, flow units, etc.
  • Expert knowledge of seal rock evaluation including lithologies, threshold entry pressures, clay volumetrics, fracture analyses, seal integrity, etc.
  • Expert knowledge of petrophysical workflows including deterministic and multi-mineral models with the ability to critically think and appropriately apply workflows for the rock and data.
  • Expert level knowledge of old log and core data reports and comfort producing petrophysical models with vintage data sets.
  • Expert level knowledge and interpretation methods of advanced logging tools including NMR, Dielectric, Dipole Sonic, Image Logs, Neutron Spectroscopy, etc.
  • Expert level knowledge of cased hole logs, including pulsed neutron logs, saturation logs, cement bond logs, etc.
  • Expert knowledge of image logs including resistivity and acoustic with the ability to process, interpret, and integrate the logs.
  • Expert level knowledge of formation testing including design of the tests and interpretation; experience running fluid sampling tools.
  • Rock mechanics, fluid substitution, and pore pressure subject matter expertise is required.
  • Mud Logging expertise is required.
  • Experience working with a reservoir management team including geoscientists, reservoir engineers, geophysicists, operations engineers, drilling engineers, and other technical staff.
  • Experience working fields on injection such as water floods and steam floods; experience with CO₂ floods is a plus.
  • Experience with well operations and making quick decisions including recommending tool changes; experience with Thru-Bit, Shuttle, Cased Hole, and Cordax a plus.
  • Experience working with vendors to design well log programs including tool selection, placement, and operating parameters.
  • Experience developing and managing budget.
  • Intermediate…
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