Welcome to our fracture studies website. This site details our decades of work with natural fractures and their implications to production. Enjoy and please contact us for additional information.



Publically offered short courses are listed below. In-house short courses focusing on your company's specific proprietary data, needs and interests are available upon request.

Naturally Fractured Reservoirs
Organization: 100th Annual Convention and Exhibition of the American Association of Petroleum Geologists
Date: April 6-7, 2017
Location: Houston, Tx
Instructors: John Lorenz and Scott Cooper, FractureStudies LLC
Registration: http://ace.aapg.org/2017 or phone 1-918-560-9421


Recent and Ongoing Fractured Reservoir Analyses

Public and Private Investor Reports - previously published public papers/reports provided through links on the Case Studies/clients webpage. Private reports are available as appropriate through direct contact.

Kurdistan, Iraq – An AAPG presentation on "Fractured Reservoirs of the Shaikan Anticline, Northern Iraq" is a summary of field and core work and is available as a pdf within our FractureStudies database Shaikan Anticline. This is a singular example of some of our work done over multiple years in the Kurdistan region. Additional descriptions and photographs can be found on our FutureStudies/Contact page.

Niobrara Formation: Fracture Types and Distributions – A private-investor report in the development phase – interested and current research participants please coordinate with Dr. Lorenz on project specifics (photos).

Tensleep Formation Fracture Study Compendium – A summary of three and a half years (2007-2010) of field, outcrop and core studies on the Tensleep Formation for the Enhanced Oil Recovery Institute at the University of Wyoming.  The report is available by request at www.eori.uwyo.edu or as a pdf within our FractureStudies database Tensleep Formation Fracture Study Compendium.


Fracture Studies done by John C. Lorenz and Scott P. Cooper provide insight and solutions for:

  • Fracture-controlled reservoir flow dynamics
  • Fracture-controlled production behavior
  • Better well placement
  • Better completion techniques
  • EOR activities
  • Directional drilling
  • Structural interpretations and tectonic histories
  • Increased ultimate recovery

Why do fracture analyses?

1. The advantages and importance of knowledgeable fracture analysis:
Fractures are easy to count and to measure for dip and strike, but that does not make them simple, easy to understand, or interpret. Unless the fracture types are understood, statistical analyses of fractures are meaningless. There are many types of fractures, and each has different effects on reservoirs. Fractures vary by lithology and by stress regime, and can either enhance or degrade reservoir permeability. Many types of fracture permeability can change during production.

2. Why this fracture-analysis team is unique:
Fracture analysis requires insight into fracture type and origin in order to make valid three-dimensional assessments of fracture-related reservoir plumbing, and to reconstruct structural/tectonic histories. We offer more than the measurement and counting of cracks. Our long history of helping to develop the science of natural and induced fracture interpretation and analysis (see publications list), and our experience in a diverse array of fractured reservoir plays and formations, allow us unique insights into fractured-reservoir characterizations and problems.

3. Multidisciplinary interactions:
We have a proven record of providing useful, applied geological data and concepts to multidisciplinary teams--please note the themes of our published papers and the different expertise of the various co-authors. We have interacted successfully and productively with engineers, geophysicists, petrophysicists, rock mechanicists, and other experts.

Aerial photography, and geology of production and analog areas:
John Lorenz, as a licensed pilot and flight instructor, can provide aerial images from overflights of your producing areas or analog site, field scale and aerial scale geologic assessments, or teach you how to fly. Contact John for further information.

List of publications:

A partial list of our publications is attached here as a PDF.

Two papers published in the American Association of Petroleum Geologists Bulletin (one on fractures within the Spraberry Formation the second on a fracture model based on Teapot Dome) are provided here with permission from AAPG as locked PDFs. Additional publications are available through the AAPG at www.aapg.org.

Our publications with the Department of Energy are available through the DOE’s Information Bridge website at www.osti.gov/bridge/. This site provides free public access to all of the DOE’s Scientific and Technical publications.

We provide several of our public-domain reports including nine Multiwell Experiment Project Reports as PDFs in our Fracture Studies/Clients page. We can provide additional articles, papers and reports on request.

Free public access to our DOE reports through:

Information Bridge: Department of Energy Scientific and Technical Information

Strategic Partners:

Dr. Ahmed Ouenes

FractureStudies has for years co-taught classes on fractured-reservoirs and worked joint projects with Dr. Ahmed Ouenes of FracGeo (www.fracgeo.com). Dr. Ouenes and FracGeo have unique capabilities in fractured-reservoir modeling using Continuous Fracture Networks and are currently breaking new ground in the understanding of the interactions between natural fractures and hydraulic stimulation fractures.

Associations with:

FracGeo LLC, The Woodlands, TX

Deformation Research group at the University of Leeds, Leeds, UK www.rdr.leeds.ac.uk

Enhanced Oil Recovery Institute at the University of Wyoming

Petroleum Professional Development Center of Midland College

Professional affiliations:

American Association of Petroleum Geologists (AAPG)

Rocky Mountain Association of Geologists (RMAG)

Society of Petroleum Engineers (SPE)

Wyoming Geological Association (WGA)



Scott P. Cooper
Phone: (505) 286-1462

Mailing Address:
99 Rainbow Road Suite 4-5 Edgewood, NM 87015-2348

John C. Lorenz
Phone: (505) 281-9321
Fax: (505) 286-9467

Mailing Address:
99 Rainbow Road Suite 4-5 Edgewood, NM 87015-2348


website security



Dueling photographers: John C. Lorenz along the Hogback monocline, northwestern San Juan basin (Lorenz and Cooper, 2003).

Creating extension fractures: Scott P. Cooper, Fort Hayes Limestone Member of the Niobrara Formation, Raton basin, Colorado (Sandia National Laboratories Technical Report, Lorenz and Cooper, 2004).

The difference between looking at slabbed core (left) and whole core (right) for fracture studies

Natural fractures account for the difference between actual well productive capacities and matrix deliverability in low-permeability sandstones of the Mesaverde Formation in the Piceance basin of Colorado (from Warpinski and Lorenz, 2007).

phto Let us provide you the courses, field trips, (all guaranteed to include lunch stops at fall aspen groves) data and/or interpretations to help analyze and produce your teams’ reservoir.