公开(公告)号：US20200158907A1

公开(公告)日：2020-05-21

申请号：US16198117

申请日：2018-11-21

申请人： Baoyan LI ,  Hasan Kesserwan ,  Guodong Jin ,  Julio Roberto Arro ,  Alberto Mezzatesta

发明人： Baoyan LI ,  Hasan Kesserwan ,  Guodong Jin ,  Julio Roberto Arro ,  Alberto Mezzatesta

IPC分类号： G01V3/38 ,  G01V3/32 ,  E21B41/00 ,  E21B47/00

摘要： A method for transforming an earth formation and/or production equipment based on correcting nuclear magnetic resonance (NMR) data to account for partially water-saturated rock includes: receiving NMR logging data having echo-trains for an earth formation; inverting the echo-trains to provide transverse relaxation time constant (T2) distributions for various components of fluid in the earth formation; substituting a T2 distribution for mobile water of fully water-saturated rock for a T2 distribution for mobile water of partially water-saturated rock based on values of the mobile water T2 distribution of partially water-saturated rock and a total porosity constraint; summing the T2 distribution for mobile water of fully water-saturated rock and a T2 distribution for an immobile water component of the fluid to provide a T, distribution for fully water-saturated rock; and transforming the earth formation and/or the production equipment based on a parameter derived from the T2 distribution for fully water-saturated rock.