Title:
INTERSPERSING DIFFERENT WAIT TIMES IN TRAINLET AND PARTIAL RECOVERY SEQUENCES
Document Type and Number:
WIPO Patent Application WO/2019/139582
Kind Code:
A1
Abstract:
A method and system for interspersing different wait times in trainlet and partial recovery sequences is provided. The method includes introducing a nuclear magnetic resonance (NMR) tool into a wellbore penetrating a subterranean formation. The method also includes applying an NMR pulse sequence to the subterranean formation using the NMR tool, in which the NMR pulse sequence includes at least two different wait times interspersed between successive sequences of radio frequency (RF) pulses. The method also includes measuring one or more echo signals corresponding to a substance in the subterranean formation based on the applied NMR pulse sequence. The method also includes determining a distribution of a characteristic of the substance based on the measured one or more echo signals.
Inventors:
LI LILONG (US)
CHENG YUESHENG (US)
BEARD DAVID R (US)
REIDERMAN ARCADY (US)
CHEN SONGHUA (US)
CHENG YUESHENG (US)
BEARD DAVID R (US)
REIDERMAN ARCADY (US)
CHEN SONGHUA (US)
Application Number:
PCT/US2018/013212
Publication Date:
July 18, 2019
Filing Date:
January 10, 2018
Export Citation:
Assignee:
HALLIBURTON ENERGY SERVICES INC (US)
International Classes:
G01N24/08; G01N33/24
Foreign References:
| US5486762A | 1996-01-23 | |||
| US5905376A | 1999-05-18 | |||
| US20030006766A1 | 2003-01-09 | |||
| US7126333B2 | 2006-10-24 | |||
| US7825661B2 | 2010-11-02 |
Attorney, Agent or Firm:
PEACOCK, Gregg, A. et al. (US)
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