Mary L. Borrero

Detail-oriented geologist with an M.Sc in geology and proven experience in fast-paced multidisciplinary teams to deliver exceptional results. Looking for a position as a professional geologist to make a strong contribution within an organization that offers opportunities for professional development

Geologist - Stantec - Chattanooga, Tennessee

(2025-09)

• Rorex South, Pump Storage for Federal Entity. Alabama
• Leading core logging, QA/QC, and sampling of Devonian, Mississippian and Cretaceous rocks at Appalachian-foothill site (Field 95% office 5%). Project is on hold indefinitely by client- starting end of September 2026
• Geological support for mining teams within Stantec, technical reports

Sci. Geologist III - Tetratech-Ardaman & Associates - Polk County, Florida

(2022-08 - 2025-08)

Field geologist.

• Supervising and coordinating geotechnical field activities at various sites in Mosaic properties-phosphogypsum Stacks in central Florida (Polk County).
• Scheduling, coordinating drilling rig crews; geotechnical investigations of potential dissolution (sinkhole and cavities) using core logging, sampling and classification of soils and rocks.
• Supervising well drilling, coring, piezometer, geophones, and vibrating wires installations, deep monitoring water wells.
• Documented daily field data.
• Facilitating office-drilling crew communications to improve production and efficiency in the field

Physical Geologist, Scientific Research - Natural Resources Canada - Calgary, Alberta, Canada

(2018 - 2022-06)

Geological Survey of Canada

• Artic/NWT core logging- stratigraphy, sedimentology and geochemistry outcrops and samples to understand the regional and local extension and distribution of critical minerals
• Alberta/BC: Sedimentology, core logging/sampling of Cretaceous-Barremian; Sampling and core description of Cretaceous/Tertiary boundary-extinction cores. Interpretation of environmental deposition and extinction events. Sampling for Hg analyses, geochemistry; geothermal projects in Devonian carbonates, sulfur sampling and mapping of batholites in British Columbia-Canada
• Northwest Territories. Regional core logging, created sedimentological and stratigraphic framework (map, cross sections and geochemical distribution and oil architecture schemes) in Devonian carbonates/Rampart Fm and Canol shales in a regional and local scale

Geologist - Parens Oil - New venture - Calgary, Alberta, Canada

(2017 - 2019)

Part of a start-up company.

• Responsible for geological evaluation of assets, subsurface play and prospect risks; preparation of development plans in Saskatchewan and SW Manitoba; engagement of stakeholders to bid and invest in the projects; and interactions with divesting companies.
• Parens Oil closed its business, Jan. 2020

Senior Geologist-Petroleum Geologist - Husky Energy - Calgary office. Calgary, Alberta, Canada

(2011 - 2016)

• Worked in a team preparing divestiture of assets in SE Saskatchewan for sale of properties. Presented information to prospective buyers
• Team Lead Geologist
• Regional evaluation of SE Saskatchewan. Lead exploration team of 10 people working in subsurface interpretation and integration of geo-seismic and engineering data with the intent to expand reserves and create new fairway play maps
• Geologist - Exploration and Development. SE Saskatchewan Team. Carbonates
• Focused on providing asset evaluation working closely with geophysicists, engineers and landmen to generate drilling prospects and identify new well locations and to reduce exploration and development risks
• Created regional frameworks based on integration of geological, seismic, petrophysical and reservoir data; and generated subsurface mapping, cross sections and reserve calculations
• Evaluated farm-in, farm-out opportunities (bidding and divesting for land and assets). Developed new drilling prospects as well as better recovery schemes
• Coordinated drilling activities, including well planning, licensing applications and execution of drilling programs for 4 exploratory and 40 horizontal wells (1300-1800 m depth, and up to 1000m horizontally). Followed up with hourly/daily drilling budget and made decisions maximizing budget efficiency
• In charge of team -drilling operations and core activities for SE Saskatchewan exploratory and development wells; budget of wells between $800K to $1.8M (each); followed up with safety training and field protocols for monthly visits to field operations/ and as input on decisions during field activities
• Prepared and presented technical recommendations to management for budget approval
• Maintained an open communication with the field team and office management for daily drilling and completion activities; recommended appropriate follow-up actions
• Weekly, monthly reporting; quarterly - annual budget approval / technical presentations to management

Sedimentologist-Geologist - NEXEN INC. - Calgary, Alberta, Canada

(2011 - 2011)

• Long Lake Project. Oil Sands, sedimentological and stratigraphic descriptions of core and interpretation of depositional environments

Researcher / Teaching Assistant - University of Alberta - Edmonton, Alberta, Canada

(2006 - 2010)

• Research Assistant: U of A and ENI (Italian Oil & Gas Company)
• Latemar Project. Carbonates. Sampling for isotopes, laboratory work, petrography, diagenetic interpretations
• Teaching Assistant for course Earth Through Time, EAS 210
• Prepared, conducted lectures and laboratories; graded assignments and marked exams
• Researcher - Graduate Student
• Sedimentology and Stratigraphy of Hondo Evaporites-Carbonates in the Heavy Oil Grosmont Platform. Awarded best M.Sc. thesis in Canada in 2011 by the Canadian Society of Petroleum Geologist CSPG.
• https://era.library.ualberta.ca/items/a79b0daa-3312-45db-aad9-688e2f3ebc83/view/58a70e44-d541-41cd-9cc8-589e11f623e6/Borrero_Mary_Fall-202010.pdf

Geologist-Internship - Shell E&P - Houston, Texas

(2007 - 2007)

• Grosmont Project-Devonian Carbonate System. Sedimentology, stratigraphy, core logging and petrography. Petrel, 3D modeling for reservoir architecture

Environmental Management - University of Calgary

M.Sc. - Earth and Atmospheric Sciences - University of Alberta

Honours - B.Sc. - Geology - Universidad Industrial de Santander