Fractalevaluationofexplosivefracturing

simulationtestoncementsamples

XU Peng; CHENG Yuan-fang; ZHANG Xiao-chun; LI Lei; JIA Jiang-hong; LIU Xiao-lan

doi:10.11883/1001-1455(2011)02-0179-06

Volume 31 Issue 2

May 2014

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2011 > 31(2): 179-184

XU Peng, CHENG Yuan-fang, ZHANG Xiao-chun, LI Lei, JIA Jiang-hong, LIU Xiao-lan. Fractalevaluationofexplosivefracturingsimulationtestoncementsamples[J]. Explosion And Shock Waves, 2011, 31(2): 179-184. doi: 10.11883/1001-1455(2011)02-0179-06

Citation:

XU Peng, CHENG Yuan-fang, ZHANG Xiao-chun, LI Lei, JIA Jiang-hong, LIU Xiao-lan. Fractalevaluationofexplosivefracturing simulationtestoncementsamples[J]. Explosion And Shock Waves, 2011, 31(2): 179-184. doi: 10.11883/1001-1455(2011)02-0179-06

Citation:

PDF( 6774 KB)

Fractalevaluationofexplosivefracturing simulationtestoncementsamples

doi: 10.11883/1001-1455(2011)02-0179-06

1.
CollegeofPetroleum Engineering,ChinaUniversityofPetroleum ,
2.
Dongying257061,Shandong,China;

Funds:

NationalHigh-techRDProgram (863Program)(2007AA06Z208)

More Information

Corresponding author: XU Peng
Publish Date: 2011-03-25

Abstract

Abstract

Indoorexplosivefracturingsimulationtestswerecarriedoutatatmosphericpressureand20 MPaconfiningpressure,respectively.Theobtainedexplosivefracturingeffectswerecompared.Comparisonsshowthatconfiningpressurehasacertaininfluenceoncrackpropagationpath, crackshape andcrackcurvature;andthatthenumberofcracksinducedbyexplosivefracturingat20MPaconfiningpressureisless, thelengthisshorterandthecurvatureisclearerthanthosegeneratedatatmosphericpressure. Thefractalpropertiesofthecracksweredescribedbythefractaltheoryandthefractaldimensionsofthosecrackswerederived. Resultsdisplaythatunderthesametestconditions,the fractaldimensionsofthecracksatthesurfaceofthesamecementsamplearenotcompletelythesame witheachother,andthatthefractaldimensionofthecracksat20 MPaconfiningpressureishigher thanthosegeneratedatatmosphericpressure.
- mechanicsofexplosion,
- fractalevaluation,
- confiningpressure,
- explosivefracturing,
- cement