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SC - 15 Applied Concepts in Fractured Reservoirs

American Association of Petroleum Geologists

Thursday, 29 July Friday, 30 July 2021, 8:00 a.m.–1:00 p.m.  |  Houston, Texas

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Who Should Attend

Geologists, Engineers, and Students

Geologists who need to characterize and understand fracture systems and their effects on reservoir permeability from core and outcrops, who need to be able to differentiate between natural and induced fractures in cores, and who would like to be able to predict the effects of lithology on fracturing.

Engineers who want to understand fracture permeability in relationship to the in-situ stress system, the interaction of natural fractures with hydraulic stimulation fractures, and the important differences between extension and shear fractures in controlling individual fracture permeability and the interconnectivity of fracture networks.

Objectives

  • Different fracture types have different effects on reservoir permeability.
  • Not all fractures are effective in enhancing reservoir permeability.
  • Fracture types can vary by lithology within the same structural setting.
  • Fracture types can vary by structural setting within the same lithology.
  • Fracture permeability can be sensitive to changes in the in situ stress during production.
  • Recognizing fracture type in the small sampling of a reservoir offered by core can provide a conceptual model differentiating radial from anisotropic drainage.
  • The interaction of natural fractures with hydraulic stimulation fractures depends on fracture type and orientation relative to the in situ stresses.
  • The student will obtain insights into fracture mechanics and the origins of fractures, and use those concepts in a very applied sense to instill an understanding of natural fractures and their potential effects on reservoirs.
  • Students will come away from the course with an appreciation of the wide range of structures that fall under the basket term “fracture”.

Course Content

This class provides insights into fracture mechanics and the origins of fractures, and uses those concepts in a very applied sense to instill an understanding of natural fractures and their potential effects on permeability and fluid flow. This has direct applications to the petroleum, geothermal, CO₂ sequestration and environmental industries.

Discussions, lectures and exercises include differentiating fractures by type and the effects of different fracture types on reservoir permeability, and the fracture types expected in different structural domains and reservoirs. Course modules also include how to differentiate natural from induced fractures in cores and the use of image logs and their calibration with core. We will also discuss the interactions between natural fractures, in situ stresses, and stimulation fractures.

Students will come away from the class with an appreciation of the wide range of structures that fall under the basket term “fracture”, and an understanding that different fracture types do not have the same effect on hydrocarbon reservoirs.

Fees

Professional Members
$500
Professional Non-Members
$600
Students
$300
Class Limit
Professionals 20
Students 5

Instructor

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John Lorenz earned an undergraduate B.A., with a double major in geology and in anthropology from Oberlin College in 1972. After serving in the Peace Corps, Morocco, he earned his M.S., with a thesis on a Moroccan Triassic rift basin, at the University of South Carolina (1975), and Ph.D., studying the Nubian Sandstone in Libya and Cretaceous strata in Montana, at Princeton University (1981). John has worked for the U.S. Geological Survey in Louisiana and New Mexico, and for Sandia National Laboratories where he was the geologist for the tight-gas Multiwell Experiment in the Piceance basin. John has been a consultant since 2007, partnering with Scott Cooper in 2008 to form FractureStudies LLC which specializes in fractured reservoir characterization and effects. FractureStudies has counted over 50 companies as clients, working on fractured reservoir projects around the world.

John served as the Elected Editor (2001-2004) and President (2009-2010) of the American Association of Petroleum Geologists. As president, he supported the advancement of the geosciences and their applications to hydrocarbon-related problems. His published papers and presentations on natural and induced fractures in reservoirs range geographically from the Lisburne Limestone in Alaska to the Spraberry Formation in Texas to the carbonates of northern Iraq. These papers and presentations have been awarded the AAPG Levorsen (twice) and Jules Braunstein awards. In 2018 he and Scott Cooper authored two books the “Atlas of Natural and Induced Fractures in Core”. In 2020 they co-authored “Applied Concepts in Fractured Reservoirs” recognized in the Foreword by Dr. Mohammed S. Ameen, Principal Professional in Geomechanics for Saudi Aramco as “a much needed precise and practical treatment of a key topic in the energy industry and beyond... In my view this will become a standard reference for geoscientists and engineers working on fractured reservoirs...the book is well organized and clearly illustrated in an easy to grasp collection of applications for fracture studies". John has worked closely with the oil and gas industry on problems involving reservoir dimensions and in situ permeability, gaining extensive hands-on experience with core analysis and fieldwork. He has led field trips, presented core workshops, and taught short courses for the industry-oriented geological community in numerous places around the world.

Fees


Venue

SC - 15 Applied Concepts in Fractured Reservoirs
George R. Brown Convention Center
1001 Avenida De Las Americas
Houston, Texas 77010
United States
(713) 853-8000