Engineer Engineering

NELLYS CHEK-YAN CHELHOD

Senior Associate Reservoir Simulation Engineer

Holder the Residence Permanent - Green Card in USA

CIV. 137.761 / SPE ID: 3235023

Phone: 058 412-***-****

I am a Petroleum Engineer with 16 years of experience in Reservoir Engineering and Reservoir Simulation Engineering. I am known for being a proactive professional and achievement oriented. I have strong skills in all the numerical simulation software provided by Schlumberger®, CMG® and Beicip-Franlab®, as well as standard applications of reservoir engineering such as OFM®, MatBAL®. Nowadays I have specialized by performing several workflows to simulate EOR and IOR by Conventional and Chemical Methods from the Lab Scale basis to a Full-field Reservoir Simulation.

I am a holder the Residence Permanent to live and work in The United States

Main Skills:

1.Design and perform reservoir engineering and reservoir simulation engineering to recommend the best exploitation strategies of complex reservoirs, with high uncertainty, long production data (100y+) and many completed wells (1000+): Gas Offshore reservoirs, HP/HT reservoirs, Natural Fractured Reservoirs, Heavy oil reservoirs, horizontal wells, deviated wells, smart completion modeling and integrated surface facility to subsurface modeling

2.Design and Perform reservoir simulation and carry out research of several EOR processes such as waterflooding, gas Injection and gas miscible injection, surfactant, alkali, polymer and their combinations, as well as IOR methods such as: Gels, DPR, MPR, by improving the workflows from the basis of Lab Scale to a full-field reservoir simulation by using the following suites: SUITE ECLIPSE (Schlumberger); STARS, IMEX, WINPROP, BUILDER (CMG); Athos or PUMAFLOW (Beicip Franlab); PVTi, SCAL, Pre-Postprocessors: SCHEDULE, GRID, SIMGRID, SIMVIEW, GRAF, OFM.

3.Received specialized training in reservoir simulation of thermal EOR methods (SAGD, HASD, CCS, CIS) and advanced wells modeling (FLEXWELL, FCD) using the CMG suite: STARS, IMEX, WINPROP, BUILDER and CMOST; as well as portfolio management and sensitivity analysis MERAK PEEP, CAPITAL PLANNING and TDK, PETREL RE (Schlumberger) and UTCHEM (Texas AM) which is the reservoir simulator of chemical processes in Lab Scale Basis.

4.Carry out R&D in reservoir simulation in order to evaluate new modeling techniques, tools or technologies (workflows such as history matching, run predictions and computational sciences such as solution methods, formulations and algorithms of: ECLIPSE (Schlumberger), IMEX (CMG), Semiya (PDVSA), PETREL RE (Schlumberger) and PUMAFLOW (Beicip Franlab).

EDUCATION

Universidad Central de Venezuela.

Degree in Petroleum Engineering (5 years). 1999

WORK EXPERIENCIE

Senior Associate Reservoir Simulation Engineer, PDVSA Intevep

November 2012 – to present: As employee in PDVSA, I am assigned to work into the academic project created by PDVSA in order to finish a master degree in Characterization and Exploitation of Reservoirs

Final I&D Study – Project (In progress):

“Waterflood optimization through water control chemical technologies to improve the production and injection profiles and the oil recovery in the east area of the SJN FUL 2 reservoir in the El Furrial Field”

Special I&D projects finished for PDVSA:

SWOT Analysis for PDVSA: Present and Future. Module Hydrocarbons Economy in charge of Msc. Eulogio Del Pino, CEO-PDVSA

Integrated management of the reservoir SJN FUL 2, El Furrial Field, onshore, Venezuela. Module Reservoir Integrated Management in charge of Msc. Claudio Martinez, advisor NeXT Schlumberger.

Drainage area estimation and productivity index from NFR pressure analysis. Module Characterization and Advanced Reservoir Simulation in charge of Phd. Marcelo Laprea, Director of Curriculum Reservoir Engineering of NeXT Scchlumberger

Asphaltenes flocculation / precipitation impact on the productivity oil wells in reservoirs close to the critical point. Description of stimulation methods. Module Characterization and Advanced Reservoir Simulation in charge of Phd. Gonzalo Rojas, Advisor NeXT Schlumberger

Evaluating the asphaltenes slugs in El Furrial Field, onshore, Venezuela. Módulo Organic Geochemistry in charge of Msc. Alejandro Martinez, Project Lider in Organic Geochemistry in PDVSA Intevep

Senior Reservoir Simulation Engineer, PDVSA Intevep

January 2012 – October 2012: Responsible for the numerical simulation of surfactant injection in the MUC-02 Reservoir, El Carito Field, Onshore, Venezuela as part of the activity into de the project: “Enhanced Oil Recovery in petroleum and gas condensates reservoirs”

Numerical simulation of the displacement test in berea and real core. Use of CMG and ECLIPSE suites (Chemical simulation – Black oil reservoir).

Project Leader in Reservoir Simulation. PDVSA Intevep

January 2010 – April 2012: Project Leader and Reservoir Study Cordinator for the project: “Reservoir engineering study of the C-INF VLB-1180 Reservoir, Lagunillas Field, Maracaibo Lake, Venezuela in agreement between PDVSA and Belorusfnet

Team Results: • Conduct a multidisciplinary team, • Designed the 1st instrument for portfolios wells • Perform the reservoir study: rate-decline analysis, pressure-production analysis, generate a synthetic PVT, material balance, reserves estimation.

January 2008 – December 2011: Project Leader “Technologies in Reservoir Simulation”.

Team Results: • Two investigations carried out in workflows to simulate ASP as a EOR Scheme • Description of the algorithm and the solution method of the black oil simulator Semiya (Trademark of PDVSA) • Benchmarking study between Semiya (PDVSA), IMEX (CMG) and ECLIPSE 100 (Schlumberger) • Participation as a Consultant in the benchmarking study between PETREL RE ®, Schlumberger and FIRST ® Platform (Beicip Franlab) for PDVSA • Culminated three investigations carried out in oil reservoirs condition to be candidate for EOR-ASP.

R&D Engineer in Reservoir Simulation. PDVSA Intevep

January 2005 - December 2007: Research and Development Engineer in Reservoir Simulation

Built and perform the first reservoir simulation model for the VLG-3729 Reservoir, Moporo Field, Onshore, Venezuela, as a part of the activity into the project: “Well Intelligent Completions". Use of UNIX, ECLIPSE suites. Black oil model. On Shore Field.

Review of Alternated Vapour Injection on the single-well model for the Baghewala Field, India, Onshore Field and Naturally Fractured Reservoir in agreement between PDVSA and OIL INDIA Ltd. Use of CMG suite. (Thermal model).

Comparison of the results of the reservoir simulation study of the gas re-injection scheme in Rio Caribe Gas Field, Offshore, Venezuela as a part of the activtiy into the technical project "Optimization of the gas re-injection scheme in Rio Caribe Gas Field." Use of Unix. ECLIPSE suite. (Compositional modeling).

•Updated the reservoir simulation model of the Área O-16, Cerro Negro Field, Onshore, Extra heavy oil reservoir. Use of CMG (Thermal model).

Especialized Support in Reservoir Simulation. PDVSA AIT

January 2004 – December 2004: Specialized Support in Reservoir Simulation Software at PDVSA as a technical support, on-site support and License Administrator.

Reservoir Engineer for PDVSA Exploración y Producción

January 2000 - December 2003:

Reservoir engineer for the project: "Optimization of gas and water injection in the El Furrial Field", Onshore, Venezuela

•Perform the reservoir simulation of the anticlinal-crest section into the reservoir model in order to predict the response of the wells to the gels treatments. Use of Becip Franlab suites. (Black oil model).

•Reservoir analysis (pressure-production-injection data, select wells to conformance treatments)

Reservoir engineer for the LGINF-07 Reservoir, Lagunillas Field, Maracaibo Lake. Offshore, Venezuela

•Build and perform the first reservoir simulation model in ECLIPSE (black oil model). (1150 wells, 90 years of oil production). Extensive use of CPS-3 (mapping application) and OFM (Integrated Production Environment), Sclhumberger

•Established the methodology to split reservoir models with long oil production data into sections-reservoir models, applied later in the Cerro Negro Heavy Oil Field operated by Petrocedeño (agreement between PDVSA and Total-Fina).

•Established the methodology for re-build the oil production history between 1920 – 1954 (not available in the data base of pdvsa)

•Designed the instrument to portfolios Wells, reservoir analysis of pressure-production-injection data, reserves estimation.

CERTIFIED – COURSE TRAINING

Advanced well modeling - SAGD and FCD by using STARS, BUILDER. CMG. Caracas, April, 2015

Assisted history matching, Sensitivity analysis, Uncertainity analysis for SAGD, Steam Injection by using CMOST. CMG. Caracas, Aprtil, 2015

Reservoir simulation of EOR Thermal Projects (SAGD, HASD, CES, Steam Injection) by using STARS, BUILDER, WINPROP, IMEX. CMG. Caracas, April, 2015

Chemical aspects of EOR (ASP) focus in reservoir simulation. Texas AM y PDVSA. Caracas, July, 2014.

Advanced PVT and EOS Fluid Characterization. Hot Engineering. Vienna, November, 2013.

Reservoir simulation of EOR Chemical Projects (Gels, ASP, Foam) by using STARS, IMEX, CMOST. CMG. Caracas, July, 2012.

Enhanced Oil Recovery by using ASP. Laboratorio FIRP. Mérida, November, 2011.

Technical Responsibilities and duties. PDVSA. Los Teques, July, 2011.

Attendant - SPE Reservoir Simulation Symposium 2011, SPE, Houston, Febraury, 2011.

Advanced Reservoir Simulation. Oil Energy. Los Teques, June, 2010.

Advanced Reservoir Engineering. Oil Energy. Los Teques, May, 2010.

Reservoir Modeling by using PETREL RE y ECLIPSE. Schlumberger. Los Teques, April, 2010.

Portfolio, Sensitivity analysis and Uncertainty analysis by using MERAK PEEP, CAPITAL PLANING and DTK. Schlumberger. Los Teques, December, 2009.

IELTS, Certification English Language. Univation LTD. Robert Gordon University. Aberdeen, From July to December, 2007.

Fluid modeling by using PVTi y and Reservoir Simulation by using ECLIPSE Comp. Schlumberger. Caracas, December, 2006.

Reservoir Gas Engineering, Reservoir Gas Condensate Engineering. ESP OIL. Maturín, July, 2006.

Strategic Planning. FIHERGAS. Caracas, June, 2006.

Creative Design. ESP OIL. Maturín, October, 2005.

Heavy oil recovery. PDVSA. Los Teques, September, 2005.

Organizing network. I y II. PDVSA. Caracas, June to July, 2005.

High perfomance for work team. PDVSA. Caracas, May, 2005.

LINUX Administration I. HP Education Services. Caracas, November, 2004.

Activating personnal network. PDVSA. Caracas, October, 2004.

English beginner to Advanced Level. PDVSA. 2004-2008.

Estatic modeling by using GEOSTRESS®. PDVSA. Los Teques, November, 2003.

MULTIGEL® Sealant Gel. Conformance control - Water and Gas. PDVSA. Los Teques, August, 2003.

ISO9001:2000 Introduction. PDVSA. August, 2003.

Reservoir simulation. Basic issues by using GEMS, WINPROP, BUILDER. CMG. Caracas, August, 2002

PUBLICATIONS

Levantamiento, Caracterización y Evaluación del Simulador de Yacimiento, Opción Petróleo Negro perteneciente al Proyecto SEMIYA. Informe Final INT-13835,2011. Chek-Yan, Nellys. Rodríguez, Thais. Hernández, Edgar. Bastidas, Antonio y Reyes, Yamila.

Estudio de Ingeniería del Yacimiento CINF-VLB1180, Bloque I, Campo Lagunillas. INT-13793,2011. Chek-Yan, Nellys. Acasio, Yanira. Peralta, Yessica y Gutiérrez, Luz.

Metodología para evaluar tecnología álcali – surfactante – polímero en pruebas de desplazamiento mediante herramientas de simulación. INT-13640,2011. Castro, Yefrenck. Jaramillo, Marelvis. Acasio, Yanira y Chek-Yan, Nellys.

Evaluación y validación del simulador BOAST-NFR, Versión Lenguaje C. NTE-1049,2012. Chek-Yan, Nellys. Hernández, Edgar y Bastidas, Antonio.

Evaluación y validación del programa de pruebas de presiones de pozo Petrosim. NTE-0995,2011. Hernandez, Edgar. Bastidas, Antonio. Reyes, Yamila. Velazquez, Cesar y Chek-Yan, Nellys.

Estudio Integrado del Yacimiento LL-07. Simulación del Yacimiento para Optimar el Plan de Explotación. INT-9285, 2002. Herbas, Julio. Caraballo, Raiza, Chek-Yan, Nellys. Vargas, María. Delgado, Denis. Aponte, Ángel. Chang, Rosa. González, Oscar. Vaca, Pedro. Ramonez, Miguel y Lena, Paulino.

Improved Oil Recovery by Flank Waterflooding in The Lagunillas 07 Reservoir, Venezuela – A Case Study. SPE 74419. I. Agbón, M.Ramones, R.Chang, S.Patniyot PDVSA Intevep y N.Chek-Yan. REIMPET C.A.

Simulación Geostadística y Numérica del Yacimiento C2/VLE-326, Bloque V, Campo Lamar. INT-8410, 2001. Campos, Héctor. Porjesz, Robert. Chek-Yan, Nellys, Mcgee, James y Alviarez, Jorge.

Análisis de Ingeniería de Yacimientos del Área LL-07. INT-7613,2000. Chek-Yan, Nellys. REIMPET.C.A Agbón, Izielen. Ramones, Miguel. Ramírez, Edgar y Chedid, Rachid.

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