Systems and methods for determining the mineralogy of drill solids
AssigneeSchlumberger Technology Corporation
InventorsJonathan Mitchell, Débora Campos de Faria, Ashley Bernard Johnson, Adam Colbourne, Trevor Hughes, Sean Lovett
Life of this patent
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Abstract
A method for measuring at least one property of a sample includes obtaining a sample of fluid including at least fines from a downhole environment, exposing the sample to a magnetic field, measuring a magnetic susceptibility of the fines in the sample in response to the magnetic field, and identifying at least one mineral present in the fines based at least partially on the magnetic susceptibility.
Claims18
A method of measuring at least one property of a material from a wellbore, the method comprising:
- obtaining at least one sample of fluid including at least fines from a downhole environment;
- exposing the at least one sample to a magnetic field produced by a nuclear magnetic resonance (NMR) spectrometer;
- measuring a magnetic susceptibility of the fines in the at least one sample in response to the magnetic field;
- and
- identifying at least one mineral present in the fines based at least partially on the magnetic susceptibility.
A method of measuring material from a wellbore, the method comprising:
- obtaining at least one sample of fluid including at least fines from a downhole environment;
- exposing the at least one sample to a magnetic field in an NMR device;
- measuring a magnetic susceptibility contrast of the fines in the at least one sample in response to the magnetic field;
- identifying a concentration of at least one mineral present in the fines based at least partially on the magnetic susceptibility contrast;
- comparing the concentration of the at least one mineral to a mineralogy log of the downhole environment;
- and
- determining a provenance of the fines in the downhole environment.
A method of measuring material from a wellbore, the method comprising:
- obtaining at least one sample of fluid including fines and cuttings from a downhole environment;
- measuring at least one property of the fines in the at least one sample and thereby collecting a fines value;
- creating a log of fines values for the at least one property;
- measuring the at least one property of the cuttings in the at least one sample and thereby collecting a cuttings value, wherein measuring the at least one property of the fines and measuring the at least one property of the cuttings includes different analysis techniques;
- creating a log of cuttings values for the at least one property;
- comparing the log of fines values to the log of cuttings values;
- and
- depth matching the fines and the cuttings.
Dependencies are inferred from the claim text.