Profile Summary :

• Highly skilled Reservoir Engineer with more than 25 years of worldwide experience in all aspects of Classical and Dynamic Reservoir Engineering, field Coordination and management of complete project

• Working at the majors and leading industry players, performed conventional and unconventional reservoir engineering studies in USA, Canada, Europe, Russia, Latin America, Africa, Asia, and the Middle East

• Classical Reservoir Engineering Studies, and building complex Reservoir Simulation models worldwide

• Worked concurrently on multiple projects, Conventional and Unconventional, Compositional, Fractured Reservoirs, IOR/EOR, Black Oil, Heavy Oil, Shale gas, Tight Gas and Gas Condensate Reservoirs

• In 1990, I was awarded the Chevron-Texaco “Bottom Line Award”. This award was for my reservoir simulation of the Skjold Field (North Sea - Denmark), which resulted in a more profitable strategy Skills and Experience:

• Substantial experience with majors and leading industry players within USA and international

• Knowledge and experience with both Conventional and Unconventional reservoirs

• Shale gas, Tight gas, Gas Condensate Reservoirs, and Gas injection techniques

• Chemical flooding(ASP), Natural Gas injection, N2, CO2, light oil. heavy oil, Foamy Oil, and thermal EOR

• Classical Reservoir Engineering Studies, Integrated Production Modeling (IPM)-Production forecasting,

• Dynamic Reservoir Engineering Studies, using Eclipse, Petrel RE, and CMG suites of software

• Onshore/Offshore, Ultra deep water, Green and Brown fields experience

• IOR/EOR Recovery Schemes, Well Count, infill drilling, Workover, and Downstream Facilities

• Production forecasting, dynamic history matching, and EOR Field development planning

• PVT modeling, Equation Of States (EOS), Dual Porosity, Dual permeability dynamic models

• Integrated full Field Development Planning and production forecasting

• Maximize, optimum oil/gas production within company requirements and facility constraints

• IPM (GAP, MBal, Prosper) for Production Forecasting and facility concept screening

• Well performance, prediction, monitoring, Waterflood design and optimization

• Pressure Transient Analysis (PTA) and well testing using Saphir software

• Short term and medium term Reservoir Management and depletion planning

• Data Room experience for Evaluation and Acquisition of Producing Field

• Influencing joint Venture ( JV) partners on all aspects of reservoir management

• Frequently presented progress on field development to JV at Technical Committee Meeting(TCM) Key Motivation and Experiences:

• Utilize my technical and managerial skills with “hand-on” technical role

• Have skills and expertise to lead/manage multi-cultural and multi discipline teams

• Key technical contributor who identifies solutions that are clearly impact the business

• Proactive, key problem solver who has worked with a multidisciplinary teams

• Collaboration skills, able to work within a technical teams and with JV partners

• Achieved success while working in cross cultural and cross functional teams

• Pass on knowledge and experience to less experienced reservoir engineers

• Provided one-on-one user training, including more specialized reservoir engineering concepts

• Coached/mentored less experienced reservoir engineers and technical assistant

• I worked in many countries and have gained knowledge of the traditions of the countries I believe my practical and managerial work experience would significantly benefit your company and would like the opportunity to discuss the way that I can be a contributor to your organization Best regards,

Hossein ALI Dortaj

Hossein Ali Dortaj - Email: adh8ld@r.postjobfree.com

linkedin.com/in/hossein-ali-dortaj-a673a92

2300 Wilcrest Dr. Houston, Texas 77042, USA

Houston Mobile, WhatsApp, Viber +1-713-***-****

Hossein Ali Dortaj

NATIONALITY: USA Citizen

LANGUAGES: English, Spanish

EDUCATION:

M.S. Petroleum Engineering University of Houston, Houston Texas (1987) Ph.D. Software Engineering University of Houston, Houston Texas (1984) not completed M.S. Computer Science/Eng. University of Houston, Houston Texas (1982) B.S. Computer Science/Eng. University of Houston, Houston Texas (1979) SPECIALIZATION: Conventional/Unconventional Resources, Reservoir Engineering and Reservoir Simulation, Black Oil, Heavy Oil, light oil, Compositional, EOS, Fractured Reservoirs(Dual Porosity, Dual permeability ), Shale gas, Tight gas, Dry gas, Wet gas, and Gas Condensate Reservoirs, Steam Flood, Natural Gas Injection, THAI, SAGD, CSS, CCS, SD, CHOPS, Foamy Oil, Chemical flooding(ASP), N2, CO2, light oil, heavy oil, and thermal EOR

Geographical Experience: USA, Canada, Europe, Russia, Latin America, Middle-East, Asia, Africa Reservoir Simulation Software: Petrel-RE, Eclipse-100, Eclipse-300, CMG STARS, Fractured reservoirs, Compositional reservoirs, EOS

Classical Reservoir Engineering: production forecasting Reservoir analysis, using IPM (Gap, Prosper, MBal, DCA, PTA, KAPPA Saphir, Monte-Carlo Simulation)

Computer Skills: UNIX Operation System, Microsoft Office Suite WORK EXPERIENCE (with majors and leading oil and gas industry) Chevron-Texaco(Staff) Houston, Texas - Advanced Research Scientist/Sr. Reservoir Engineer ExxonMobil (Staff) Houston, Texas - Sr. Staff Reservoir Engineer Shell International E&P Houston, Texas - Sr. Reservoir Engineering Advisor Contract Positions Worldwide - Short/long term positions with various companies

• I have more than 25 years of experience working in multidisciplinary environment performing Classical Reservoir Engineering Studies and building complex dynamic Reservoir Simulation models worldwide

• Data Room Evaluation and Acquisition of producing field, oil and gas reserves evaluation under various drive mechanisms, water flood design and optimization and helped and developed an exploitation plan for new and mature oil and gas fields

• Short term and medium-term reservoir management activities such as: Updating and maintaining existing dynamic reservoir simulation models, Developing and constructing new fit-for-purpose sector models, and Utilizing industry software for optimization of Production/Injection within surface facility and pipeline constraints

• Computer Skills: UNIX Operation System, Microsoft Office Suite, and industry standard dynamic simulation modeling packages Petrel-RE, ECLIPSE 100/300, CMG, Fractured and Compositional using EOS modeling. Reservoir engineering software KAPPA Saphir and Integrated Production Modeling (GAP, PROSPER, MBal), Classical Reservoir Engineering Studies, DCA, PTA, Monte-Carlo Simulation PUBLICATIONS

• "An Automatic Translation from RPG to COBOL", May 1981, copy at University of Houston Library

• Many ChevronTexaco internal publications for teaching numerous reservoir engineering, reservoir simulation, and computer courses for 14 years to engineers and geoscientist in US and worldwide WORK EXPERIENCE TIMELINE:

HOCOL (Shell International E&P Colombia) and JV Eco-Petrol, Bogota Colombia Jan 2014 to Present

Sr. Reservoir Engineering Advisor

• CPO-17, Dorcas, and Merlin Fields - Designed and Constructed full field reservoir simulation models of several fields using CMG STARTS reservoir simulation software

• Thermal Heavy Oil, Hybrid, Polymer and explored other IOR/EOR studies to optimize oil recovery

• History Matching, Sensitivity Analysis, Prediction, infill drilling, and production optimization

• Benchmarking, Injection Pattern, IOR/EOR Screening Criteria leading to optimal FDP

• IOR/EOR pilot studies, Short and long term reservoir depletion planning

• Classical reservoir engineering studies and complex reservoir simulation of both conventional and unconventional reservoirs for different development scenarios

• Keep abreast of technological advancements in the IOR/EOR area Shell International E&P, Houston Texas (Contractor) June 2012 to Jan 2014

Sr. Reservoir Engineering Advisor

• Carmon Creek / Peace River Alberta, Canada - Heavy oil / bitumen projects, SAGD, CSS, SD, CP, CHOPS

• Screening studies to evaluate EOR/IOR opportunities and optimal development strategies

• Design/development of many SAGD Thermal reservoir EOR models for major producing assets in Canada

• Performed EOR/IOR pilot studies

• Classical reservoir engineering studies and complex reservoir simulation of both conventional and unconventional reservoirs for different development strategies

• History Matching, Sensitivity Analysis, Prediction, infill drilling, to optimize field recoveries

• Screening and fit-for-purpose application verification/health check of EOR projects

• Natural Gas Injection, N2, CO2, Steam flood, light/heavy oil, and thermal EOR

• GOM - LSW/LSF - Low Salinity Waterflood

PDVSA, Venezuela, (Contractor)

June 2011 to June 2012

Reservoir Engineering Manager

• Working in Venezuela and managing several teams of geosciences and engineers

• Field Development of six EOR heavy oil fields with degree API ranging from 8 to 17, Orinoco Belt (Faja)

(El Salto, Temblador, Isleno, Uracoa, Bomblal, and Tucupita)

• Chemical flooding(ASP), N2, CO2, Natural Gas, Steam flood, light/heavy oil, and thermal EOR

• Low-Mid-High estimates of OOIP, production/recoveries for six unconventional heavy oil reservoirs

• Subsurface planning and well inventory to maximize production within cash flow constraint

• Provide technical foundation for assessing reservoir performance and field development planning Hunt Oil Company, Dallas Texas (Contractor)

Feb 2009 to March 2011

Sr. Reservoir Engineering Advisor

• Worked in Yemen, managed Classical Reservoir Engineering and simulation studies of several fields – Al-Nasr and Dhahab fields

• Worked in a multidisciplinary environment and constructed dynamic full-field reservoir simulation models

• History match, prediction, sensitivity analysis, and investigated future behavior of reservoirs

• Full Field Development Plans and reservoir management studies to optimize field recoveries

• Classical RE studies, MBal, DCA, PTA, Monte-Carlo Simulation and reserve calculation

• Presenting, discussing, and influencing JV partners on all aspects of field development

• Quarterly presented progress on field development to JV at Technical Committee Meeting(TCM)

• Supervised, coached, and mentored side by side less experienced reservoir engineers OMV/Petrom SA, Ploiesti, Romania (Contractor)

July 2007 to Feb 2009

Project Manager, Subsurface Team Lead, and Head of Gas department

• Unconventional onshore cluster Tight Gas-Condensate Reservoirs– Mamu field

• Worked in a multidisciplinary environment. Constructed dynamic full field compositional reservoir simulation models for several Gas-Condensate Reservoirs

• Worked closely with the surface facilities team to incorporate constraints and limitations into the reservoir simulator models and calculated recoveries under facility limitations and constraints

• Field Development Plan, reservoir management studies and full field production optimization

• Planned, scheduled and controlled the development study projects

• Conducted regular meetings, peer review meetings and presented the work to the management ENI (AGIP), Milan Italy (Contractor)

Nov 2006 to July 2007

Reservoir Engineering Manager, Africa Region Assets

• Coordinated and managed all reservoir engineering and modeling activities in the African Region

• Reported to Senior Management and liaison with international JV partners

• Classical reservoir engineering studies and complex reservoir simulation of both conventional and unconventional reservoirs for different development scenarios Shell International E&P, Houston Texas (Contractor) August 2005 to Nov 2006

Sr. Reservoir Engineering Advisor

• Unconventional ultra-deep-water tight gas, Gas Condensate Reservoirs - NEMed brown field

• I worked in a multidisciplinary team evaluating the development options for Shell Egypt ultra-deep-water tight gas cluster reservoirs

• Full field development planning including appraisal well test design, well count optimization for maximum ROI and concept screening of development options

• Concept selection subsea to beach, floating production systems and shallow water platforms

• Built full field dynamic models using Gap, Prosper and MBal for generating production profiles

• Used Saphir software for well test analysis and design

• Dynamic reservoir simulation sector models for parametric sensitivity analysis and management of uncertainties. QA/QC and peer assist initiatives were carried out Exxon Mobil, Houston, TX (Staff position)

2002 – Feb. 2004

Sr. Staff Reservoir Engineer

• Evaluated Eclipse fractured reservoir simulation models performed by partners and delivered several presentations to management and provided the necessary information for decision-making on field development

• Converted older proprietary reservoir simulation models (Pegasus and Mars) to EMpower most recent in- house reservoir simulation software

• Classical reservoir engineering studies and complex reservoir simulation of both conventional and unconventional reservoirs for different development scenarios

• Helped to select new infill wells location in order to maximize oil recovery from North Triumph field

• Provided one-on-one user training, including more specialized reservoir engineering concepts

• Helped engineers to build and optimize their reservoir simulation models in order to maximize the ultimate recovery from the fields

Qatar Petroleum (QP), Doha Qatar (Contractor) 2001 to 2002 Head of Development and Production Sharing Agreement - PSA Head of both MM & BH fields Development

• Supervised a team of multi-disciplinary professionals that acts as a regulatory body administering various Western multinational companies in operating Qatar Petroleum fields

• Was responsible for approving Production Sharing Contractors field development plan and reservoir management strategies

• Provide input, which confirm sound reservoir engineering and environmental practices to potentially achieve a greater operational efficiency and assure appropriate exploitation of country’s petroleum resources PDVSA, Venezuela, (Contractor) 1998 to 2001 and Feb. 2004 – July 2005 Reservoir Engineering Team Lead

Classical reservoir engineering studies and complex reservoir simulation of both conventional and unconventional reservoirs for different development scenarios Puerto La Cruz –Tight Gas and Gas Condensate Cluster Reservoirs - San Joaquin, Guario, and El Ruble fields

• Worked in a multidisciplinary environment and constructed dynamic full field compositional reservoir simulation of San Joaquin field. A tight gas condensate cluster reservoirs located in western Venezuela

• Dynamic compositional simulation models using several EOS formulations to capture specific compositional issues in the field, 64 years of history matched with 184 wells

• Prediction, sensitivity analysis, management of uncertainties and investigated future behavior of reservoirs under varying operating strategies using ECL-300 compositional simulation software Lake Maracaibo

• Constructed of full-field reservoir simulation of several fields using EC100/300-simulation software Caracas / Los Teques

• Evaluated infill opportunity in a cluster of mature fields in eastern Venezuela

• Assessment of water injection, pressure analysis; sweep efficiency and history of the wells

• presentation of selected infill wells to managements San Tome / El Tigre / Oritupano

• Reservoir simulation studies and constructed dynamic full-field models of several fields

• History matching, and prediction of field performance, sensitivity/uncertainty studies and evaluated different depletion strategies to develop Oritupano and Leona fields

• Taught reservoir engineering courses and trained engineers to perform reservoir simulation studies PEMEX, Mexico, (Contractor) 1996-1998

Reservoir Engineering Team Lead – Onshore/Offshore deep water Gulf of Mexico, GOM

• Extensive Classical Reservoir Engineering and Reservoir Simulation studies entailing, pressure transient analysis, water injection patterns analysis, material balance, water influx, sweep efficiency

• Production history analysis to achieve maximum profitable recovery from the reservoir by determining and developing the most efficient production methods

• Worked in a multidisciplinary environment and constructed full-field reservoir simulation models using ECLIPSE simulator

• History matched, prediction, sensitivity analysis, and investigated future behavior of reservoirs under varying operating strategies

• Estimated field recovery and provided the necessary information for decision making on field development

• Tampico - Arenque field off-shore

• Altamira - Tamaulipas/Constituciones fields on-shore

• Reynosa - Geminis gas field off-shore

• Cerro Azul - Tres-Hermanos off-shore - Fractured reservoir simulation Astra Capsa and Perez Companc, Argentina 1995-1996 Reservoir Engineering Team Lead

• Worked for 2 years in Buenos Aires, Mendoza, and Neuquén – Argentina

• Classical reservoir engineering studies and advanced reservoir simulation of both conventional and unconventional reservoirs for different development scenarios

• Coordination and management of complete project life cycle from initiation through close out phase

• Field Development Plan, reservoir management studies and full field production optimization

• Extensive Classical Reservoir Engineering and Reservoir Simulation studies of several fields

• Water flooding, infill drilling production enhancement and recovery Studies Chevron-Texaco, Houston, TX (Staff position) 1980 – 1995 Advanced Research Scientist / Sr. Reservoir Engineer

• Classical Reservoir Engineering and Reservoir simulation studies of several fields in the U.S. and worldwide

• Continuous reservoir engineering assistance, user telephones support, on-site support, engineering assistance, and technical training in the use of Chevron-Texaco fracture reservoir simulation software

• Taught numerous reservoir engineering and reservoir simulation courses to USA and International engineers and geoscientist

United Kingdom – (U.K.) Captain Field - North Sea

• Sensitivity/uncertainty study of Captain Field (heavy-oil) to perform waterflood and investigated the effects of key parameters on oil recovery

• The parameters include oil viscosity, horizontal well length, and vertical position of horizontal wells, production/water injection management and screening of future development scenarios Russia - Stokman gas condensate and Timan Pechora fields (Moscow and St. Petersburg) North Sea

• Evaluated development strategy of Stokman gas condensate field located in the central offshore part of the Russian sector of the Barents Sea, 250 km west of the Novaya Zemlya Archipelago, and 650 km of the Murmansk seaport.

• Reservoir simulation and production forecasting of Roman Trebsa, Toravoy, and Varandey, fields to evaluate different development strategies

• Optimize field development plan

Denmark - Skjold Field - North Sea

• Continuous simulation studies which lasted from 1986 to 1991

• Constructed full field fractured simulation models, performed history matching of pressure and free water level, and predicted future performance under different scenarios

• The simulation model was continuously updated to include new wells and geologic interpretation and predicted future performance, time of breakthrough, refinement of production/injection strategy, and screening of future development scenarios

Denmark - Gorm Field - North Sea

• Constructed full field simulation of “A-Block” reservoir and performed history matching

• Evaluated different operating strategies to develop the field Angola - Sulele South-2 Field Offshore

• Performed full field reservoir simulation studies

• history matched the performance of lower zone in Sulele South-2 well

• Used simulation models to predict future well behavior

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