A Joint AAPG / University at Buffalo field seminar

Northern Appalachian Basin Faults, Fractures and Tectonics and Their Effects on the Utica, Geneseo and Marcellus Black Shales

23-27 June 2014
  |  
Watkins Glen, New York, United States

 

Who Should Attend
Oil/gas and environmental geoscientists who wish to learn about fracturing, faulting, and tectonics in the northern Appalachian Basin (including black shales). A BS in geology/geophysics is recommended, and a geology/geophysics MS is helpful, as is experience in the geosciences world.
Objectives

The attendee will gain a working knowledge concerning:

  • How faults and fractures develop and their terminology.
  • Methodologies utilized in collecting and analyzing fracture data.
  • Characteristics of faults and fractures that affect the sedimentary units (including black shales) in the northern Appalachian Basin.
  • Tectonics that led to the formation of the structures in the northern Appalachian Orogen and the adjacent Appalachian Basin.
Course Content

The course plan is a lecture in the morning, followed by field work in the afternoon that illustrates the elements of the morning lecture. The attendees will observe fracture and fault examples and collect fracture data to analyze. Longer field trips examine faults and fractures in the Utica, fractures in the Marcellus and a complete section of highly fractured Geneseo. The schedule is dependent upon the weather.

The course lectures are organized around three core areas: 1) Faults and their effects on shales in the Northern Appalachian Basin, 2) The development and characteristics of fractures in sedimentary section of the Northern Appalachian Basin, including black shales, 3) Tectonic context of the faults and fractures in the northern Appalachian Orogen. For Part 1 the attendee will learn the evidence for, and characteristics/motion histories of, faults in the Appalachian Basin of New York, Pennsylvania and West Virginia. In Part 2, the attendee learns details about stress and fracture development, faults and rock strength, rock failure types, fracture decorations, fluid/gas driven fracturing, fracture spacing, Fracture Intensification Domains, fracture intersections, and other fracture aspects. For Part 3 the attendee will the connections among plate tectonics, faults/fractures and the development of the northern Appalachian Basin and selected reservoirs. The attendees will also learn information that promoted the advancement of Phanerozoic plate tectonic models of the Appalachian Orogen. Detailed examination of faults and fractures will be conducted in such black shale units as the Utica, Geneseo and Marcellus. Field trips will demonstrate in gray and black shales faults and fracture spacing, intersections, and decorations. These trips will also establish methodologies for characterizing and analyzing fractures. (See itinerary/syllabus in the Location Tab for details).

The course is located in the center of the Finger Lakes Wine Region, one of the most beautiful areas in the country, and is a natural laboratory that has been central to many of the advances in fracture understanding.

Field Seminar Location
Begins and ends in Watkins Glen, New York, USA (please plan to arrive in Watkins Glen the evening of June 22)
Day Zero

Arrive at Watkins Glen Sunday night, June 22.

Day One (June 23)
Lecture, Keuka Room in the Watkins Glen Harbor Hotel
  1. Connection Between Plate Tectonics And The Development Of The Northern Appalachian Basin And Selected Reservoirs
    1. Iapetan Opening and the T/BR and Alleghanian Folds
    2. Cambro-Ordovician Plate Tectonics (e.g., Taconic Collision) and Little Falls/T/Br in the Mohawk Valley, NYS.
    3. Salinic Fault Control of Basin Development
    4. Acadian, Alleghanian, and Recent Fault Activity and Basin Deposition and Deformation Controls
  2. Faults In The Northern Appalachian Basin (NY, PA, WV)
    1. Integrated Traditional and Innovative Geological Techniques: Test Case for Recognition of the Clarendon-Linden Fault System
    2. Implication of CLF for Depositional Facies
    3. Recognition of Other Fault Systems in NYS
    4. Trenton-Black River Fault Systems (guided by reactivated Iapetan-opening fault systems)
    5. Acadian/Alleghanian Fault Systems in the northern part of the Appalachian Basin
    6. Lineaments—Aeromagnetics, Topography, Satellite Imagery (optional)
    7. CAI—Heat Flow and Faults (optional)
    8. Lake Ontario and Recent Fault Activity (optional)
Day Two (June 24)
Field — Mohawk Valley Field Trip To Observe Faults And Their Effects
  1. Thruway Unconformity and exposed Taconic Little Falls faults in the black shale of the Ordovician Utica (Indian Castle) and the ribbon carbonates of the Dolgeville at Little Falls, NY
  2. Lunch stop at Subway in Little Falls
  3. Dolgeville Fault and mineralization along the fault (Indian Castle, Dolgeville, and Cambrian Little Falls carbonate) at Dolgeville, NY
  4. Marcellus deformation in the Union Springs black shale and Cherry Valley carbonate at Cherry Valley, NY
Day Three (June 25)
Lecture (Morning), Keuka Room in the Watkins Glen Harbor Hotel.

Stress

  1. And Fractures
    1. Why Fractures are Important?
    2. Why/How Do Fractures Form?
      1. Stress Review
      2. Mohr Stress Circle
      3. Fracture Development
      4. Stress, Faults and Rock Strength
      5. Rock Failure Types (e.g., parabolic fracture envelope)
  2. And Faults
    1. Failure Envelopes
    2. Conjugate Shear Set
    3. Fault types
    4. Map patterns of fault segments
    5. Releasing Bends and Restraining Bends
    6. Riedel Shears
    7. Examples

Fracture Details

  1. Fracture Decorations
  2. Fluid/gas Driven Fracturing
Field (Afternoon)

Fracture Examples—Classic fracture decorations and intersections at Watkins Glen, including plumose structures, fractures developed in an inferred rotating stress field, abutting relationships, a possible gas chimney and a FID/fault zone

Day Four (June 26)
Lecture (Morning) — Keuka Room in the Watkins Glen Harbor Hotel
  1. How Do We Pick Fracture Sets?
  2. Fracture Spacing
    1. Layer thickness vs. spacing
    2. Fracture Intensification Domains
  3. Fracture Intersections
    1. Examples of various types
    2. Significance of types from modeling
  4. How to Display Fractures
    1. Stereonets
    2. Rose diagrams
    3. Stick diagrams
  5. Upper Devonian Black Shale (Marcellus and Geneseo) Fracture Considerations
    1. Introduction to Upper Devonian black shale characteristics
    2. Fracture frequency
      1. Decreasing fracture frequency upsection (lower TOC)
      2. High fracture frequency related to faults (FIDs)
    3. Fracture orientations
      1. J1, J2 and Set II local and regional variations
    4. Fracture abutting relationships and development of the basin and fractures
    5. Fault deformation
      1. Outcrop examples
      2. Seismic and well log examples
      3. FMI examples
Field (Afternoon)

Fracture Examples— More classic fracture sets and intersections at Taughannock Falls, including FIDs and intrusions along the FIDs, and fractures that imply a rotating stress field.

Learn how to collect fracture data via scanline, scangrid, and “abbreviated method.”

Day Five (June 27)
Lecture (Morning), Keuka Room in the Watkins Glen Harbor Hotel.
  1. Ordovician Utica Black Shale Considerations
    1. Introduction to Utica black shale characteristics
    2. Fracture orientations
    3. Fracture abutting relationships and development of the basin and fractures
    4. Fault effects
      1. Outcrop examples
      2. Seismic and well log examples
      3. FMI examples
  2. Selected Fracture Papers in the Appalachian Basin (optional)
Field

Fracture Examples In The Black Shales Of The Geneseo And Marcellus

Walk upsection through the entire Upper Devonian Geneseo black shale at Lodi, NY, observing upsection consistency in J1 and variations in other fracture sets. Observe J1 fractures in the Marcellus at Marcellus, NY.

Logistics On Day Five: We will depart Watkins Glen at 5 PM, and plan to arrive at the Buffalo airport at 7:30 PM.

$1,950
Expires on
25 May, 2014
Early Tuition
$2,150
Expires on
27 June, 2014
Regular Tuition
11 people
Limit
3.0
CEU

Includes course notes and field guide, and transportation during Field trips. Does not include hotels or meals.
No refunds for cancellations after 26 May 2014.

 

Robert Robert Jacobi Senior Geology Advisor at EQT Production, Pittsburgh, PA
Vicky Kroh Registrar +1 918 560-2650
Debbi Debbi Boonstra Education Coordinator +1 918 560-2630

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Northern Appalachian Basin Faults, Fractures and Tectonics and Their Effects on the Utica, Geneseo and Marcellus Black Shales Registration Open
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