文档介绍：Shale Gas
Exploitation of a New Resource
Prof. Michael J. Economides and
Prof. Christine Ehlig-Economides
©2010
Resource Triangle (From Holditch)
Conventional Reservoirs
Small volumes that are
easy to develop
Unconventional
Large volumes difficult to develop
Improved technology
Increased pricing
3
Basin Analog – The idea…
conventional
unconventional
known
known
US Basins
(Reference)
conventional
unconventional
known
unknown
International/Frontier Basin
(Target)
Basin
Analogs
(modified from Singh, 2007)
Shale Gas Plays in the US
MARCELLUS
SO HOW BIG IS IT???
Date Agency or Author Recoverable (TCF)
2009 Hiscock & Barclay 516
2008 IOGA of NY 500
2009 Engelder 489
2008 DOE 262
2007 Engelder & Lash 168
2008 NCI
2006 USGS 31
2002 USGS to
2005 USGS
Wrightstone 2010
Courtesy Greg Wrightstone, 2010
THE OTHERS
HOW BIG ARE THEY???
Date Agency or Author Recoverable (Tcf)
FAYETEVILLE
2009 Chesapeake 20
t
2008 NPR 30
Haynesville
2010 Chesapeake 300
Wrightstone 2010
US SHALE IN THE WORLD
How Do the Marcellus and pare to Other GAS Fields World-wide?
World's 10 Largest Gas Fields (2005)
Source: IEA 2005
Field Name
Tcf
1. North Field-South Pars (Iran)
1,400
2. Urengoy (Russia)
222
3. Yamburg (Russia)
123
4. Hassi R'Med (Algeria)
123
5. Shtokman (Russia)
110
6. Zapolyarnye
95
7. Hugoton
81
8. Groningen
73
9. Bonavenko
70
10. Medvezhye
68
300 -500 Tcf
8
Multiple Transverse Fractures Intersecting a Horizontal Well
Horizontal Wells and
Gas Shale Formations
Large number of transverse fractures
Treatment placement is important
Open-hole jetting
Cased hole perforating/jetting
Planned
Often Realized
Optimized
From Schlumberger
10
Example of jet cutter tool with 6 holes longitudinally
disposed, 180° phased in a 4” section
Example of jet cutter tool with 4 holes radially disposed,
90° phased
Abrasive Jet Cutter