Revisiting fracture gradient:Comments on“A new approaching method to estimate fracture gradient by correcting MattheweKelly and Eaton's stress ratio”  

作　　者：Farizal Hakiki Muizzuddin Shidqi 

机构地区：[1]King Abdullah University of Science and Technology(KAUST),Ali I.Al-Naimi Petroleum Engineering Research Center(ANPERC),Thuwal 23955,Saudi Arabia [2]Shell Upstream Indonesia Services B.V.,Jakarta Representative Office,Talavera Office Park 23rd Floor,Jl.Letjen TB Simatupang Kav.22 e 26,Jakarta 12430,Indonesia

出　　处：《Petroleum》2018年第1期1-6,共6页油气（英文）

基　　金：The authors appreciate Mr.Andika Perbawa at KAUST,Saudi Arabia and Dr.Henry Pasaribu at Shell Global Solutions,Netherlands for their fruitful discussion.

摘　　要：A study performed by Marbun et al.[1]claimed that“A new methodology to predict fracture pressure from former calculations,MattheweKelly and Eaton are proposed.”Also,Marbun et al.'s paper stated that“A new value of Poisson's and a stress ratio of the formation were generated and the accuracy of fracture gradient was improved.”We found those all statements are incorrect and some misleading concepts are revealed.An attempt to expose the method of fracture gradient determination from industry practice also appears to solidify that our arguments are acceptable to against improper Marbun et al.'s claims.

关 键 词：Fracture gradient Overburden pressure Pore pressure MattheweKelly's stress ratio Eaton's stress ratio Poisson's ratio Pressure safety drilling window GEOMECHANICS 

分 类 号：TG1[金属学及工艺—金属学]