USA (212) 688-8868 sales@genoil.net

Edgar José Villalta Martínez

Genoil Geological Engineer

Mr. Martinez is a geologist with a Master’s Degree in Petroleum Engineering with 28 years of experience working with multidisciplinary teams in integrated studies, development geology and well productivity. The geographic areas where has worked include the eastern basin of Venezuela and mainly the Lake Maracaibo basin, in western Venezuela, with Cretaceous and tertiary deposits. He has also worked as a consultant geologist in the southern, northern and marine regions of Mexico, in integrated studies, selection of the optimal exploitation plan under the FEL methodology, deterministic and probabilistic estimation of reserves. Development of maps of geological risk, Sequential Stratigraphy, Seismic Interpretation, Project Management, Experience managing processes of certification of reserves, under guidelines of the National Hydrocarbons Commission (CNH). Mr. Martinez has a deep knowledge of oil field assets in Mexico and will assist Genoil and our partners to to identify opportunities in Mexico.

Halliburton Consulting

Edgar worked for Halliburton Consulting for six years in Parasio, Ciudad de Mexico, Villahermosa Poza-Rica, and Villahermosa as a senior Geological Consultant. He was the leader of the VCD project of technological wells in the Kab field of the southwest marine region, in Paraíso Tabasco. Two non-conventional wells were planned, one of high angle (60 degrees, Type J) and the other of 12 degrees S. The decision support documents (DSD) were generated for the three phases involved: Visualization, Conceptualization and Definition, for the Kab-38 and Kab-82 locations with objective Jurassic Kidmeridian age fractured sites, these documents and their respective presentations were approved by the committee assigned by PEP and also by the VCD methodology consulting company. In Villahermosa Pico-Rica, Mr. Martinez was the technical manager of the Humapa Asset, in charge of field development plan, major repairs, reserves certification, exploration plan in the Shale oil / gas formation, with 6 engineers (geosciences, reservoirs and productivity) under my supervision. He was responsible for BD work in the preparation and presentation of the mature fields for Round One of Pemex and CNH to Independent Petroleum Companies (IOCs). He was in charge of the preparation and presentation of Gas and Oil Fields in shales in the North Region.  In Villahermosa Edgar was responsible for Static model of the Tokal-Alameda Fields, Active Bellota Jujo, among the activities carried out, was the elaboration of structural, stratigraphic sections, definition of the stratigraphic model by sequences (turbidites) and seismic-structural interpretation. He performed studies to select secondary recovery method in the field of extra heavy oil, the original volume was revised in place using probabilistic methodologies. Edgar was the leader of the VCD project of technological wells in the Kab field of the southwest marine region, in Paraíso Tabasco. Two non-conventional wells were planned, one of high angle (60 degrees, Type J) and the other of 12 degrees S. The decision support documents (DSD) were generated for the three phases involved: Visualization, Conceptualization and Definition, for the Kab-38 and Kab-82 locations with objective Jurassic Kidmeridian age fractured sites, these documents and their respective presentations were approved by the committee assigned by PEP and also by the VCD methodology consulting company. Edgar was also responsible for Geological analysis, original oil estimate on site, development plan for Campo San Andrés, second round of Incentivized Projects. This analysis was part of the comprehensive study for Halliburton to participate in the tender for the award of this field. Edgar was also in charge of Inactive Well Project Bellota Jujo, the function of productivity geologist was fulfilled, 30 inactive wells were analyzed, of which ten wells were elaborated their opinions, with his recommendations of how to intervene. He was involved in the updating of the Static Model of the Edén and Jolote fields. The stratigraphic model was used, volumetric estimation of the fields, identification of 5 drilling opportunities and at the same time I was the Project Manager, coordinated to 4 professionals and guaranteeing the time and quality of the deliverables to the client. Edgar handled geological characterization Campo Sen, elaboration of geological sections, structural maps and seismic interpretation of horizons and faults, 2 drilling opportunities were generated and 2 proposed locations were relocated to an area with lower geological risk. PEP staff were trained in the use of Stratworks and Zmap.

Halliburton Landmark

For five years Mr. Martinez was working with the Halliburton Landmark division in Cardenas, Paraiso and Villahermosa Mexico. He was a member of the Bellota Jujo Asset productivity team, where a portfolio of 40 wells drilled in naturally fractured Jurassic and Cretaceous carbonate reservoirs subjected to N2 injection was studied, the activities carried out consisted of the elaboration of geological sections, the water-oil and oil-gas contacts, as well as the selection of intervals to fire or shut off, the work included major and minor repairs in a period of three months, due to the success obtained, the asset requested an extension of 2.5 months and 25 additional wells, which was also executed with equal success. . Subsequently, another extension of 5 months was executed, where 25 additional wells were analyzed and 65 wells were previously monitored and updated. The results obtained based on the integral productivity analysis of Acro Bellota Jujo wells resulted in an increase in oil production of 23,750 BPD and an increase in associated gas production of 29.86 MMPC. Edgar has performed probability estimations of the Ixtal Field, of the Abkatun-Pol_Chuc Asset in Dos Bocas, Tabasco, Mexico. Volumetric estimation of the Che, Etkal and Kay fields in the Abkatun-Pol_Chuc Asset in Dos Bocas, Tabasco, Mexico. Mr. Martinez developed a static model in detail, in order to reduce uncertainty, as part of the “Delimitation Project, characterization and initial development, heavy oil, Samaria Field, Neogene”, carried out under the FEL methodology, succeeding in incorporating proven and probable reserves; additionally, the initial field operation plan was established.

Edgar studied Geology at The Central University of Venezuela, Caracas, Venezuela and received his Master of Engineering in Petroleum Engineering at Texas A & M University, College Station, USA 2001. Edgar specialises in Selection of wells for major repairs (increased productivity), Support for G & G applications, Estimation of reserves deterministically and probabilistically, Quantification of the uncertainty of the static model in FEL projects, Elaboration of the stratigraphic framework in integrated studies, Geological risk mapping, Seismic interpretation and Certification process for reservations.

PDVSA

Edgar worked for PDVSA for fourteen years as Geologist of integrated studies, geological development, and operations. Mr. Martinez participated in multidisciplinary teams in charge of studying reservoirs subjected to water injection, in order to change the injection strategy to increase the recovery factor, for which multilateral wells, injectors and producers were proposed. In addition, wells were selected for an ASP injection project in a Miocene age site. The geological responsibilities of the integrated study of the Urdaneta 01 reservoir, heavy crude, were subdivided into 14 genetic units, the former being only 5 layers, based on the sedimentological description of 7 nuclei of the deposit. More than 44 structural compartments were defined and characterized, it was possible to estimate the poes of the reservoir, the optimum exploitation plan was selected. He was also responsible for the drilling of 30 horizontal wells was planned and executed on a thin, inconsolid 20-foot sand in a heavy oil field, which was why they were subjected to alternating steam injection, each well producing 500 BDP. More than 50 successful development and advanced wells were planned, most of which were high tipping, mainly in the Urdaneta field, of heavy crude. Three advanced wells and fifteen (15) development wells were also planned and drilled at the Eocenos reservoirs. During a period of 8 months of state-of-the-art work in stratigraphic interpretation, supported by the use of 3D seismic, at the BEG of the University of Texas at Austin, it was possible to identify a series of stratigraphic compartments in a Miocene Lake of Maracaibo, these compartments served as targets for 5 successful horizontal wells in thin sands and for 30 equally successful rehabilitation works. In addition, the geological information of the Campo Ambrosio data-pack was carried out during the Third Round of the Venezuelan Oil Opening. Service companies conducting geological surveys for PDVSA were also monitored, over 50 proposals for drilling were reviewed and approved. Edgar performed operations of geological monitoring of operations, acquisition of electrical records, seismic and canal samples, collection and preservation of nuclei. Boundaries were estimated through the use of channel samples and continuous logging profiles (Mudlogging) in both the Miocene and Eocene sections and in the Cretaceous section of the Maracaibo basin. Rehabilitation geology studies (Workover) were also carried out, increasing production by more than 50% to 30 wells per year. The number of wells drilled during this period was 40 wells per year.

Published Articles

  • Marlon de Jesus Gonzalez, Meudys Adriana Romero Mendoza, Edgar Villalta Martinez, Wilmer Barrios Contreras, and Carlos Alberto : “Well Management to Generate Alternative Solutions of Increased Hydrocarbon Production in Naturally Fractured Reservoirs under Nitrogen Injection“2011 South American Oil and Gas Congress, organized by the SPE Western Venezuela Section, held in Maracaibo, Venezuela, 18–21 October 2011
  • Hongliu Zeng, William A. Ambrose, and Edgar Villalta (2001). ”Seismic sedimentology and regional depositional systems in Mioceno Norte, Lake Maracaibo, Venezuela.” The Leading Edge, 20(11), 1260-1269.