Lead Unconventional Reservoir Geoscientist

Ian Martin Group; Spring (TX); On-site; USD 150,000 - 230,000; Full time

Job summary

Ian Martin Group is seeking a Development & Production Geoscientist (Unconventional) to integrate subsurface data and guide development of shale and tight resources in Texas. The role spans seismic interpretation, petrophysics, and reservoir modeling to optimize well placement and recovery.

You will work with a multidisciplinary team to translate geological uncertainty into actionable plans, mentor junior staff, and communicate risks to leadership and stakeholders.

Qualifications

• Master's degree or equivalent advanced degree in geology, geophysics, petroleum geoscience, or a related discipline.
• 10+ years of oil and gas geoscience experience, including significant unconventional reservoir development experience.
• Proficiency in seismic interpretation, well correlation, mapping, volumetric assessment, uncertainty analysis, and well-development planning.
• Strong capability in sequence stratigraphy, sedimentology, structural interpretation, petrophysics, reservoir characterization, geological modelling, and resource evaluation.
• Demonstrated experience integrating subsurface interpretation with drilling, completions, reservoir engineering, and production data.
• Right to work in the USA

Responsibilities

• Integrate seismic, well-log, core, geological, geochemical, pressure, production, and completion data to build a coherent understanding of the reservoir and surrounding stratigraphic framework.
• Assess resource quality and producibility, including organic richness and maturity, hydrocarbon charge, mineralogy, porosity, permeability, fluid saturation, pore pressure, geomechanical properties, natural fractures, and reservoir continuity.
• Define and map reservoir-quality trends, landing-zone fairways, development constraints, and technically recoverable resource distributions.
• Construct and maintain regional, field-scale, and development-scale geological models that capture stratigraphic architecture, structural complexity, reservoir heterogeneity, and key uncertainties.
• Identify and recommend optimal landing zones, well trajectories, lateral lengths, spacing, stacking patterns, and development sequencing.
• Support well planning and execution through geosteering, offset-well analysis, pre-drill prognosis preparation, operational risk assessment, and post-well evaluation.
• Integrate geological interpretation with completion design and production performance to identify the subsurface controls on well productivity and decline behavior.
• Evaluate parent-child well interactions, pressure depletion, frac barriers, interwell communication, and the potential for bypassed or stranded resource.
• Perform volumetric and probabilistic resource assessments, uncertainty analysis, risking, development scenario evaluation, and inventory ranking.
• Provide subsurface input to business plans, reserves and resource evaluations, investment decisions, acreage assessments, and development optimization studies.
• Mentor junior geoscientists and communicate technical conclusions, uncertainties, and recommendations clearly to technical teams, leadership, and business stakeholders.

Skills

Geology

Geophysics

Seismic interpretation

Reservoir modeling

Geosteering

Hydraulic fracturing

Education

Master's degree

Job description

Ian Martin Group is seeking a Development & Production Geoscientist (Unconventional) to integrate subsurface data and guide development of shale and tight resources in Texas. The role spans seismic interpretation, petrophysics, and reservoir modeling to optimize well placement and recovery.

You will work with a multidisciplinary team to translate geological uncertainty into actionable plans, mentor junior staff, and communicate risks to leadership and stakeholders.