- 专利标题: FLUID SUBSTITUTION METHOD FOR T2 DISTRIBUTIONS OF RESERVOIR ROCKS
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申请号: US16198117申请日: 2018-11-21
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公开(公告)号: US20200158907A1公开(公告)日: 2020-05-21
- 发明人: Baoyan LI , Hasan Kesserwan , Guodong Jin , Julio Roberto Arro , Alberto Mezzatesta
- 申请人: Baoyan LI , Hasan Kesserwan , Guodong Jin , Julio Roberto Arro , Alberto Mezzatesta
- 申请人地址: US TX Houston
- 专利权人: Baker Hughes, a GE company, LLC
- 当前专利权人: Baker Hughes, a GE company, LLC
- 当前专利权人地址: US TX Houston
- 主分类号: G01V3/38
- 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.