DELFIN ANTONIO CALIXTO ZAFRA

ad3caj@r.postjobfree.com

Phone: 832-***-****

Address 1: 1225 Eldridge Pkwy TX 77077 provisional

Address 2: 14410 Andrews Lane TX 77396

Houston –Texas- United State

Senior Petroleum Engineer

With extensive experience in consulting and operations in project management from start to finish in Completion and Completion of wells in operations of oil and gas production fields, carrying out maintenance and reconditioning of wells, optimization of system designs production by artificial lift, development of subsoil operations in workover work, completion, completion and testing of wells integrating updated technical and administrative processes. Flared by my aptitudes, abilities with all the motivation and eager to be part of a work team in large projects, follower of business guidelines with the aim of obtaining and contributing my knowledge and experience at a personal and business level according to the projects with results of excellence for mutual benefit.

APTITUDES

Planning, recommendations, orientation and analysis of the projects to be executed

Productivity, efficiency, innovation and quality in project management.

Development, training, work and multifunctional team support for the optimization of technical and human resources.

Duties and responsibility with the execution of the assigned project.

Effectively defending the project assignment.

HABILITY

Collaboration working as a team in a favorable environment of trust and respect.

Commitment and coordination with the organization for the execution of assigned projects

Written communication presenting accurate, efficient and effective reports, performing in technical writing in English and oral communication supported by an interpreter. Perfectly Writing and communication in Spanish first native language.

Ability to effectively resolve operational problems if they arise.

Results working oriented to the fulfillment of work plan oriented to results.

Proficient in computer software.

Operational and administrative experiences gained in years of work in oil and gas production fields allow me to provide advice and execution of operations in the areas of workover, completion, well testing.

Development of operations through standardized and safe operating procedures.

Keep me in constant motivation, excellent physical and mental health and of course a positive attitude.

WORK EXPERIENCE

Area: Consultant,Technical and Operative Management Oil and Gas Production Companies

Workover y completamiento.

Achievements:

- Re-acondition of Producción petroleum wells in: Costa Oriental Maracaibo Lake Venezuela (Petroleum reservoirs of Cabimas, Tia-juana, Lagunillas, Bachaquero, Menegrande, Concepción, Casigua-El cubo) and Colombia (Petroleum reservoir of Velásquez, Palagua, Cocorna, Centro, Tibu, Casabe, Cantagallo, Cicuco, Rio Zulia, El Difícil).

- Enhance the design and programming quality of work over and well completion activities by optimizing proven techniques and practices. In addition, implement new technology by innovative operating methods that contribute to the development and upgrading the process standards in the oil wells.

- Optimizations of designs to improve the well production systems.

- Design and implementing of proven techniques to develop new under-ground operations procedures to work over activities (Drilling, Casing, electrical records and data, chemical stimulation, special casing design for gas and water injection wells), Secondary recover, and stimulation of petroleum reservoir as well evaluation and Optimization of gas plants: Including equipment evaluation and oil production process.

- Outgoing results in Managing all the activities related to pipe and Line pipe installation, superficial equipment, oil stored tanks and distribution systems.

- Pointed as one of the best Petroleum Engineer in Ecopetrol and promote as an Operation and Administrative Manager Casabe and Cicuco.

-Since October 1975 to September 1979. Company: COLOMBIAN PETROLEUM COMPANY-ECOPETROL

Position: Petroleum Engineer

Description: Perforations, design analysis, maintenance and recovering of production wells.

- Since March 1980 to August 1983. Company: HELMERICH & PAYNE of VENEZUELA C. A. Maracaibo Lake

Position: Petroleum Engineer and Supervisor of Perforations

Description: Perforations, workover, maintenance activities in the field.

-Since April 1985 to December 1997 Company: ECOPETROL COLOMBIA

Position: Professional II/ senior Eng. Production Department. Production Field: Casabe Santander

Description:

- Manage the technical and administration activities in the field/ reservoir

- Plan, program and coordinate the execution of well activities on the rigs in line with the internal and external customers

- Operational, Health, Safety and Environmental standards.

- Accountabilities Issues, Plan, program and coordinate the execution of well to deliver quality products on time and within budget.

-Prepare the engineering design of wells in conformance with the Corporate/Functional Code of Practices and Procedures, including structured risk analysis for high exposure operations.

- Since January 1998 to December 2004 Company: ECOPETROL S.A COLOMBIA

Position: Operation and Administrative Manager – Five Production Fields

Description:

-Management, plan and conduct evaluations and provide advice on engineering operations for the extraction of petroleum or natural reservoirs, develop oil and gas reserves and to maximize recovery and profit, determine methods of optimizations, plan ways to transport the oil and reserves, the use of down hole pumps, gas lift systems, management personal and operating equipment, In addition, issues related to the treatment of oil to remove sediment and water, conduct operations and activities in accordance with environmental policies and codes, implementing a work safely procedures.

-Coordinate the programming, gathering, reporting and distribution of well data; evaluate the quality of well engineering data and participate in the quality evaluation of reservoir as well Coordinate the activities and monitor the technical performance of Service Contractors against agreed indicators; measure the quality and cost effectiveness of the services and products delivered by the Service Contractors.

- Inspection and evaluation of Production, casing, drill, and line pipe -Internal and External coated - as well production well equipment.

-OCTOBER 2008 - JULY 2010.

Company: STS DE LOS ANDES S.A

Position: Superintendent of Operations, based in Bogotá D.C and Operations in El Centro (Santander) for the La Cira-Infanta Project in Barrancabermeja of the Oxy Companies and Ecopetrol S.A. Operations of completion and completion of wells, and activities related to the position of Superintendent as administration and management of personnel in charge to attend the operations in the mentioned Project.

OCTOBER 2010- JANUARY 2014

Company: Gexdex CSI

Position: Advisor for Ecopetrol in the Completion and Completion of Exploratory and Development Wells, in the Exploratory Projects of Putumayo, Caño Sur (Meta), Huila, Cicuco (Bolívar) and others in the Magdalena Medio.

FEBRUARY 2014 - MAY 2015.

Company: Consultec International.

Position: Specialist "B" for Ecopetrol in the Completion and Testing Area of exploratory and development wells in the Magdalena Medio fields of Ecopetrol S.A. (Tisquirama San Roque, Cristalina, Casabe), Exploratory Blocks CP09, CP10 and CP11 in the Meta area.

-JANUARY 2005 -DECEMBRE 2022

EMPRESA INSERPETROL LTDA COLOMBIA (Company of Petroleum Engineering Services Position: General and Operations Management. With current disposition to attend Petroleum Operations or Projects that merit Administrative, Technical and Operative experience.

JANUARY 2023: Senior adviser of Petroleum Engineering in well completion and workover operations. At your disposal in Houston Texas USA.

FORMACION

High School: Institute Salesiano “San Juan Bosco “, November, 1967

University: Universidad Industrial Santander (UIS), Professional Petroleum Engineer, December 1974

Diplomat: Universidad EAFIT- Medellin, Management and Administration, November 1993

Languages and literatura: Native Spanish.

Intermediate and Highly technical English.

Management and Administration:

-Project Management, Quality Control and Quality Assurance, Negotiation, Risk Analysis, Decision Taking, Investment Project for the petroleum industries, Legislations, Negotiation Skills.

Finances- Finances Studies

Technical

Prevention of petroleum splits, MIMS tools, Productivity in petroleum companies, Environmental Activities, Emergencies in Petroleum companies, Fire prevention in Oil and gas production line, Instrumentations, Well profiles, Process, interpretation de profiles de well de petroleum, Stimulation of wells, Injectors, Formation tests (DST).

Special Trainings

-Mud Laboratories, perforation and work- over

-Production Control, Reservoir calculations, Statistical Process Control- Production-

-Pressure in petroleum reservoirs

-Formation/Geol. Tests

-Stimulations Oil and Gas wells (Rike service)

Interpretation of Petroleum reservoirs profiles.

REFRESHER COURSES

Training taken virtually during the years 2022 and 2023.

* Hydraulic Fracturing in Unconventional Reservoirs.

* Hydraulic fracturing to improve the production of oil wells.

* Offshore operations - offshore a competitive bet for Colombia.

* Let's talk about Fracking – Comprehensive Research Pilot Projects.

* Drill bits – casing drilling.

* Experiences and Learning in EOR Projects.

* Integrity of Wells - Directed Practices - Technical Fundamentals - Operational Barriers.

* Completion Engineering for Natural flow in the life of the Well.

* Completion engineering for artificial lift wells. And sand control.

* Smart wells of the future - Planning - System Design - Main components in smart completions.

* How to complete horizontal wells in non-conventional deposits - Multistage Fracturing.

* Training damage and stimulation.

* New Technologies in Well Drilling.- Integrated waste management- Drilling cuttings treatments- Migration of Technology in Motors and RSS- Evolution of directional profiles- Operations monitoring- Drilling fluid strategies- Optimizations of casing connection design - optimization in travel times.

* Well Integrity Management Systems.- Well life cycles – Anomalies and failures of WBE (Well Barrier element) – Common well Integrity problems.- Well Barrier elements – wims – Well barrier schemes – Roles and responsibilities – Risk assessment – Risk Matrix.

* Recovery improved by solvent injection in the field.

* Drilling techniques and completion of wells in unconventional deposits.

*Practical petrophysics in unconventional reservoirs.

MERITS.

- UNIVERSIDAD DE SANTANDER- UIS-: In 1994 pointed as Special member Investigation and Research for Latin-American countries in the Scientific and Technical fields-

- In 1991 High pointed as one of the best professionals for the contribution to the Colombian Petroleum Industry.

Recognition for the performance developed in the Colombian Petroleum Company for 20 years of service in the oil industry.

- Merit Ecopetrol S.A Colombia certification due High responsibility, patriotism in emergency situation, Professionalism, for best working in team and high spirit of responsibility and collaboration.

- Honorary member of the Colombian Association of Petroleum Engineers.

-Belonging to the CCIP association, Colombian council of petroleum engineering.

INTERESTS.

Family life with my wife and 16-year-old son I support his high school (12thgrado) education and his interests specifically in STEM -Engineering.

Wellness Fitness to maintain physical and mental health, Life, spiritual and social.

Practice amateur field tennis.

I enjoy dancing salsa rhythm

Be updated on news and news of professional, social interest

Participate in volunteering and the like to collaborate with causes in need.

References and certifications can be sent according with the company requirements.

Cordially,

DELFIN ANTONIO CALIXTO ZAFRA

ad3caj@r.postjobfree.com

Phone: 1-832-***-****

Houston TX-USA.

2024

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