Invention Grant
- Patent Title: Use of echo shapes in nuclear magnetic resonance log data acquisition and quality control
-
Application No.: US15142577Application Date: 2016-04-29
-
Publication No.: US10215829B2Publication Date: 2019-02-26
- Inventor: Nicholas Heaton
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Main IPC: G01V3/32
- IPC: G01V3/32 ; G01R33/56 ; G01N24/08

Abstract:
A method to process information from a wellbore tool is disclosed having steps of placing a wellbore nuclear magnetic resonance tool in a wellbore to a scan a geological formation, activating the nuclear magnetic resonance tool to send signals to and receive signals from the geological formation, acquiring the received signals from the geological formation wherein the received signals have an echo shape, storing the echo shape according to at least one of a quadrature phase and a nominal signal phase, computing an echo shape from all of the received signals, determining a presence of a noise from the received signals, defining a noise filter based upon the received signals from the nuclear magnetic resonance tool and using the filter to remove noise from the received signals.
Public/Granted literature
- US20170315199A1 USE OF ECHO SHAPES IN NUCLEAR MAGNETIC RESONANCE LOG DATA ACQUISITION AND QUALITY CONTROL Public/Granted day:2017-11-02
Information query