Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FLUID SUBSTITUTION METHOD FOR T2 DISTRIBUTIONS OF RESERVOIR ROCKS
Document Type and Number:
WIPO Patent Application WO/2020/106446
Kind Code:
A3
Abstract:
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 T2 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.

Inventors:
LI BAOYAN (US)
KESSERWAN HASAN (US)
JIN GUODONG (US)
ARRO JULIO ROBERTO (US)
MEZZATESTA ALBERTO (US)
Application Number:
PCT/US2019/059971
Publication Date:
March 25, 2021
Filing Date:
November 06, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BAKER HUGHES A GE CO LLC (US)
International Classes:
E21B49/00; E21B41/00; E21B43/16; G01V3/32
Foreign References:
US20180259468A12018-09-13
US20100277167A12010-11-04
US20170115242A12017-04-27
US20160245764A12016-08-25
US20100109664A12010-05-06
Attorney, Agent or Firm:
CARSON, Matt et al. (US)
Download PDF: