Daniel Higuera Email and Phone Number

• Enhancement of steam flood pilot after implementing optimized steam injection and production rates getting an economical OSR through 3D reservoir dynamic model.• Identification of undeveloped hydrocarbon resources increasing in 10MM barrels the reserves of the assets.• Leading $8MM data acquisition project for identifying well reservoir contacts and thief zones to propose workovers and new wells.• Leading Field redevelopment plan to extend/renew the Nare association contract in Colombia. This plan includes a full fields review: proposals of infill wells, technology application and EOR strategy in 6 fields, all supported by reservoir numerical simulation and analytic models.• Improvement of reservoir characterization models of Jazmin, Moriche and Velasquez fields, integrating rock typing and permeability. Reservoir heterogeneity was better represented, modelling was upgraded improving the flow dynamics of the model.• Carried out rock typing for Jazmin, Moriche and Velázquez fields (fluvial reservoirs) integrating basic and special core data, production logs, well logs, pressure transient analysis and sedimentology logs using neural networks and special analysis.• Technical analysis review of new assets (exploratory and mature fields) including reserves estimation, FDP, waterflood, workover plans and uncertainty analysis.

• Support exploration team in the evaluation of new assets: petrophysical analysis, range for reserves estimation, production forecasting, evaluation of development scenarios.• Built reservoir static and dynamic model and run simulation to evaluate feasibility of various EOR schemes include infill wells, water flood and chemical flood for Velasquez Field.• Built reservoir dynamic model and run simulation for steam flood and infill wells projects (Jazmin and Moriche Field).• Carried out rock typing for Jazmin, Moriche and Velázquez field integrating basic and special core data, production logs, well logs and sedimentology logs using neural networks.• Primarily be responsible for reservoir engineering analysis and evaluation, project design, modeling and simulation for CSS and IOR/EOR for Moriche Field.• Evaluation of scenarios for increasing reserves and optimisation of the development plan through reservoir simulation and conventional reservoir engineering. • Robust experience in optimization of mature fields, field development planning, well performance forecast, forecast production and reserve estimation.

• Analyzed reservoir performance in cyclic steam stimulation fields. Determined remaining reserves by de-cline curve analysis and recommendation of steam volume to inject per well.• Lead to estimate the volume of hydrocarbons in place, recoverable reserves and well production potential forecast for Moriche Field which involved in analysis and application of the rock and fluid properties, well characteristics, material balance and fluid flow equation, well performance, productivity tests and uncertain-ties analysis.• Conducted fluid phase behavior and basic/special core analysis acquisition and interpretation. • Petrophysical evaluation for Moriche and Abarco Area, integrating production data, core analysis and electric logs from more than 500wells.

* Wells potential evaluation and workover/wellservice recommendations.* Evaluation and analysis of remedial cementing operations.* Wellservice and workover operations assistance.