Geology

modern organic geochemistry for exploration of oil and gas

Course Description

PROGRAMME OVERVIEW & OBJECTIVES

 

Participants learn the key techniques of Petroleum Geo-chemistry starting with the Geologic controls on the distribution of organic facies and petroleum source rocks. Generation, Migration & accumulation are explained, followed by process of maturation and biodegradation that can modify Oil composition. Oil rock co-relation which is important in identifying possible migration pathways are explained. Participants develop the knowledge and skills to apply the theory and methods at individual level.

PROGRAMME PROFILE

•Principles and Processes: Review of Basic Chemistry and organic matter in recent sediments. Petroleum generation – temperature time, change in Kerogen and biomarkers, Petroleum migration

•Petroleum Systems: Qualification of Source Rock potential, maturity and type, volume & type of hydrocarbons generated. Timing of Source Rock generation and migration. Correlations of Oils to Source Rocks

•Applications of Geo-chemistry: Case Studies of Geochemistry for exploration

 

 

 

Audience

Exploration Geologists

Prerequisites

Applied Petroleum Geology or Equivalent

Course Schedule

1

Day 1: Focus on basins & source rocks • Introduction: the role of geochemistry in the E&P business • Exercise 1: formulate questions to the PDVSA geochemist • Basins & petroleum systems • Exercise 2: describe petroleum systems of the Orinoco delta basin • Source rock depositional environments • Exercise 3: Plate tectonics & source rock type in Lago Maracaibo area • Sea-level and source rocks through time • Exercise 4: Assess net source rocks of outcrop section • Source rock quality assessment • Exercise 5: Interpret geochemical log

2

Day 2: Focus on lakes, deltas, Rock Eval • Source rocks in Lakes & Deltas • Exercise 6: Orinoco Delta source rock processes • Maturity assessment of source rocks • Exercise 7: Interpret maturity data • Working with Rock Eval data • Exercise 8: Determine average source rock quality from Rock Eval data • Introduction to oil typing • Exercise 9: Planning geochemical sampling for Orinoco deep water exploration well.

3

Day 3: Focus on basic oil typing • Basic organic chemistry & analytical methods • Exercise 11a: Oro Negro Part I, source rocks • Bulk properties • Exercise 10: oil type & petroleum system, basic. • Application of gas chromatograms • Exercise 12: Find the pollution culprit! • The gasoline fraction • Exercise 11b: “Oro Negro” exercise, Part II, simple oil & extract data

 

 

4

Day 4: Focus on advanced oil typing • Biomarkers • Exercise 13: New ventures biomarker application • Maturity • Exercise 11c: “Oro Negro” exercise, Part III; Oil families assessment. • Biodegradation • Exercise 14: The Draugen field production geochemistry • Gas typing • Exercise 15: gas typing

5

Day 5: Focus on basin analysis • Burial history • Exercise 16: create burial history. • Maturity calculation • Exercise 18: calculate maturity of source rock • Generation of Hydrocarbons • Exercise 11d: Oro Negro exercise, Part IV, Charge risking the prospect “F”. • Surface geochemistry • Exercise 17: calculate the hydrocarbon potential of the Orinoco delta deep-water area • Logging methods • Exercise 19: design a geochemical study • Evaluation.

Instructor

Dr. Wiekert Visser

Instructors may vary based on location and schedule.

Classes

No classes are currently scheduled for this course.

Add yourself to the waiting list

We will schedule a class for this course, when there are enough participants on the waiting list.

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