The American Oil and Gas Reporter - January 2012 - (Page 151)

Tech Trends Operators Seek Fracture Consistency Heterogeneity and variability in rock composition, texture and stress have led to inconsistent production from horizontal shale wells. Achieving a better understanding of the challenges this variability presents to horizontal multistage completions is leading to advanced measurements and processes that achieve more consistent production results and improved fracture efficiency. By Kyel Hodenfield PARIS–Advancements in the process efficiency of horizontal well drilling and multistage hydraulic fracturing have enabled the vast economic development of unconventional shale reservoirs in North America. A manufacturing approach to well construction–developed through cooperation between service providers and operators–has driven down costs at an impressive pace; however, further focus is required to achieve better and more consistent performance on production results, as many wells are not economic, especially at current gas prices. This inconsistency of production results has been experienced in all the basins across North America, and provides an opportunity for the next process improvement in the economics of unconventional plays. Hundreds of new-generation production logs have been run in unconventional wells. Analyzing these logs indicates that 15-20 percent of the fracture stages and 3540 percent of the perforation clusters do not contribute to production. Published numerical simulations of shales have shown that as much as 75 percent of each hydraulic fracture does not contribute to production. Often, the fracture is not propped effectively, is isolated from the main fracture or does not clean up effectively. Some imbibition of stimulation fluids takes place, although testing indicates an imbibition rate of less than 5 percent of the total fracturing fluid volume. JANUARY 2012 151

Table of Contents for the Digital Edition of The American Oil and Gas Reporter - January 2012

The American Oil and Gas Reporter - January 2012
Contents
Calendar
Oil & Gas Counts
State Legislative
Industry Digest
Tech Connections
Washington Watch
Federal Legislation
EPA
Gulf of Mexico
Resource Plays Providing Wealth of Opportunities
Tight Plays Poised to Transform U.S. Crude Supply
El Paso Project Optimizes Eagle Ford Completion Design
Real-Time Forward Modeling Improves Bakken Horizontals
Cover Story
Financial Firms Expand Oil and Gas Divisions
Multicomponent 3-D Poised for Growth in Shale Plays
Cloud Computing Driving Business Step Changes
Advanced Attributes Improve 3-D Interpretation
3-D Data Improve Knowledge of Shale Heterogeneity
HBUR RSS Solves Granite Wash Drilling Challenges
Technologies Improve Production Consistency in Resource Plays
SaaS Helps Operator Streamline Data Management
Automation Enhances Operations in Challenging Applications
Dispersant Chemistry Combats Plugging in Low-Gravity Oil Wells
New Technologies Optimize Production
PIOGA
Drilling Regs
IOGAWV
The Presidential Papers
Energy Education
Conventions
Shale Gas
New Lits & Products
Computer Currents
Industry Focus
Classified Advertising
Advertisers Index

The American Oil and Gas Reporter - January 2012

http://www.nxtbook.com/nxtbooks/aogr/202003
http://www.nxtbook.com/nxtbooks/aogr/202002
http://www.nxtbook.com/nxtbooks/aogr/202001
http://www.nxtbook.com/nxtbooks/aogr/201912
http://www.nxtbook.com/nxtbooks/aogr/201911
http://www.nxtbook.com/nxtbooks/aogr/201910
http://www.nxtbook.com/nxtbooks/aogr/201909
http://www.nxtbook.com/nxtbooks/aogr/201908
http://www.nxtbook.com/nxtbooks/aogr/201907
http://www.nxtbook.com/nxtbooks/aogr/201906
http://www.nxtbook.com/nxtbooks/aogr/201905
http://www.nxtbook.com/nxtbooks/aogr/201904
http://www.nxtbook.com/nxtbooks/aogr/201903
http://www.nxtbook.com/nxtbooks/aogr/201902
http://www.nxtbook.com/nxtbooks/aogr/201901
http://www.nxtbook.com/nxtbooks/aogr/201812
http://www.nxtbook.com/nxtbooks/aogr/201811
http://www.nxtbook.com/nxtbooks/aogr/201810
http://www.nxtbook.com/nxtbooks/aogr/pbios_201810
http://www.nxtbook.com/nxtbooks/aogr/201809
http://www.nxtbook.com/nxtbooks/aogr/201808
http://www.nxtbook.com/nxtbooks/aogr/201807
http://www.nxtbook.com/nxtbooks/aogr/201806
http://www.nxtbook.com/nxtbooks/aogr/201805
http://www.nxtbook.com/nxtbooks/aogr/201804
http://www.nxtbook.com/nxtbooks/aogr/201803
http://www.nxtbook.com/nxtbooks/aogr/201802
http://www.nxtbook.com/nxtbooks/aogr/201801
http://www.nxtbook.com/nxtbooks/aogr/201712
http://www.nxtbook.com/nxtbooks/aogr/201711
http://www.nxtbook.com/nxtbooks/aogr/201710
http://www.nxtbook.com/nxtbooks/aogr/201709
http://www.nxtbook.com/nxtbooks/aogr/201708
http://www.nxtbook.com/nxtbooks/aogr/201707
http://www.nxtbook.com/nxtbooks/aogr/201706
http://www.nxtbook.com/nxtbooks/aogr/201705
http://www.nxtbook.com/nxtbooks/aogr/201704
http://www.nxtbook.com/nxtbooks/aogr/201703
http://www.nxtbook.com/nxtbooks/aogr/201702
http://www.nxtbook.com/nxtbooks/aogr/201701
http://www.nxtbook.com/nxtbooks/aogr/201612
http://www.nxtbook.com/nxtbooks/aogr/201611
http://www.nxtbook.com/nxtbooks/aogr/201610
http://www.nxtbook.com/nxtbooks/aogr/pbios2016_programguide
http://www.nxtbook.com/nxtbooks/aogr/201609
http://www.nxtbook.com/nxtbooks/aogr/201608
http://www.nxtbook.com/nxtbooks/aogr/201607
http://www.nxtbook.com/nxtbooks/aogr/201606
http://www.nxtbook.com/nxtbooks/aogr/201605
http://www.nxtbook.com/nxtbooks/aogr/201604
http://www.nxtbook.com/nxtbooks/aogr/201603
http://www.nxtbook.com/nxtbooks/aogr/201602
http://www.nxtbook.com/nxtbooks/aogr/201601
http://www.nxtbook.com/nxtbooks/aogr/201512
http://www.nxtbook.com/nxtbooks/aogr/201511
http://www.nxtbook.com/nxtbooks/aogr/201510
http://www.nxtbook.com/nxtbooks/aogr/201509
http://www.nxtbook.com/nxtbooks/aogr/201508
http://www.nxtbook.com/nxtbooks/aogr/201507
http://www.nxtbook.com/nxtbooks/aogr/201506
http://www.nxtbook.com/nxtbooks/aogr/201505
http://www.nxtbook.com/nxtbooks/aogr/201504
http://www.nxtbook.com/nxtbooks/aogr/201503
http://www.nxtbook.com/nxtbooks/aogr/201502
http://www.nxtbook.com/nxtbooks/aogr/201501
http://www.nxtbook.com/nxtbooks/aogr/201412
http://www.nxtbook.com/nxtbooks/aogr/201411
http://www.nxtbook.com/nxtbooks/aogr/201410
http://www.nxtbook.com/nxtbooks/aogr/201409
http://www.nxtbook.com/nxtbooks/aogr/pbios2014_programguide
http://www.nxtbook.com/nxtbooks/aogr/201408
http://www.nxtbook.com/nxtbooks/aogr/201407
http://www.nxtbook.com/nxtbooks/aogr/201406
http://www.nxtbook.com/nxtbooks/aogr/201405
http://www.nxtbook.com/nxtbooks/aogr/201404
http://www.nxtbook.com/nxtbooks/aogr/201403
http://www.nxtbook.com/nxtbooks/aogr/201402
http://www.nxtbook.com/nxtbooks/aogr/201401
http://www.nxtbook.com/nxtbooks/aogr/201312
http://www.nxtbook.com/nxtbooks/aogr/201311
http://www.nxtbook.com/nxtbooks/aogr/201310
http://www.nxtbook.com/nxtbooks/aogr/201309
http://www.nxtbook.com/nxtbooks/aogr/201308
http://www.nxtbook.com/nxtbooks/aogr/201307
http://www.nxtbook.com/nxtbooks/aogr/201306
http://www.nxtbook.com/nxtbooks/aogr/201305
http://www.nxtbook.com/nxtbooks/aogr/201304
http://www.nxtbook.com/nxtbooks/aogr/201303
http://www.nxtbook.com/nxtbooks/aogr/201302
http://www.nxtbook.com/nxtbooks/aogr/201301
http://www.nxtbook.com/nxtbooks/aogr/201212
http://www.nxtbook.com/nxtbooks/aogr/201211
http://www.nxtbook.com/nxtbooks/aogr/201210
http://www.nxtbook.com/nxtbooks/aogr/201209
http://www.nxtbook.com/nxtbooks/aogr/2012_pbios
http://www.nxtbook.com/nxtbooks/aogr/201208
http://www.nxtbook.com/nxtbooks/aogr/201207
http://www.nxtbook.com/nxtbooks/aogr/201206
http://www.nxtbook.com/nxtbooks/aogr/201205
http://www.nxtbook.com/nxtbooks/aogr/201204
http://www.nxtbook.com/nxtbooks/aogr/201203
http://www.nxtbook.com/nxtbooks/aogr/201202
http://www.nxtbook.com/nxtbooks/aogr/201201
http://www.nxtbook.com/nxtbooks/demo/aogr_clone
http://www.nxtbook.com/nxtbooks/aogr/201112
http://www.nxtbookMEDIA.com