Method of mixing a formation fluid sample by rotating a downhole sampling chamber
AssigneeHalliburton Energy Services, Inc.
InventorPaul David Ringgenberg
Life of this patent
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Abstract
A method of mixing a formation fluid sample obtained in a downhole sampling chamber. The method includes positioning the downhole sampling chamber having a longitudinal axis in a rotary stand and rotating the downhole sampling chamber generally about the longitudinal axis. The method also includes imparting angular momentum to the formation fluid sample in the downhole sampling chamber, thereby mixing the formation fluid sample.
Claims17
A method of mixing a formation fluid sample in a downhole sampling chamber having a longitudinal axis, the method comprising:
- running the downhole sampling chamber into a wellbore;
- obtaining the formation fluid sample in the downhole sampling chamber;
- retrieving the downhole sampling chamber containing the formation fluid sample from the wellbore;
- positioning the downhole sampling chamber containing the formation fluid sample in a rotary stand;
- rotating the downhole sampling chamber containing the formation fluid sample generally about the longitudinal axis;
- imparting angular momentum to the formation fluid sample in the downhole sampling chamber by applying a shear force on the formation fluid sample with an inner surface of the downhole sampling chamber;
- and
- mixing the formation fluid sample in the downhole sampling chamber before transferring the formation fluid sample from the downhole sampling chamber.
A method of mixing a formation fluid sample in a downhole sampling chamber having a longitudinal axis, the method comprising:
- running the downhole sampling chamber into a wellbore;
- obtaining the formation fluid sample in the downhole sampling chamber;
- retrieving the downhole sampling chamber containing the formation fluid sample from the wellbore;
- positioning the downhole sampling chamber containing the formation fluid sample in a rotary stand;
- cyclically rotating the downhole sampling chamber containing the formation fluid sample generally about the longitudinal axis and bringing the downhole sampling chamber to rest;
- imparting angular momentum to the formation fluid sample in the downhole sampling chamber by applying a shear force on the formation fluid sample with an inner surface of the downhole sampling chamber;
- and
- mixing the formation fluid sample in the downhole sampling chamber before transferring the formation fluid sample from the downhole sampling chamber.
A method of mixing a formation fluid sample in a downhole sampling chamber having a longitudinal axis, the method comprising:
- running the downhole sampling chamber into a wellbore;
- obtaining the formation fluid sample in the downhole sampling chamber;
- retrieving the downhole sampling chamber containing the formation fluid sample from the wellbore;
- positioning the downhole sampling chamber containing the formation fluid sample in a rotary stand;
- rotating the downhole sampling chamber containing the formation fluid sample generally about the longitudinal axis in a first angular direction;
- imparting angular momentum to the formation fluid sample in the downhole sampling chamber by applying a shear force on the formation fluid sample with an inner surface of the downhole sampling chamber;
- rotating the downhole sampling chamber containing the formation fluid sample generally about the longitudinal axis in a second angular direction;
- imparting angular momentum to the formation fluid sample in the downhole sampling chamber by applying the shear force on the formation fluid sample with the inner surface of the downhole sampling chamber;
- and
- mixing the formation fluid sample in the downhole sampling chamber before transferring the formation fluid sample from the downhole sampling chamber.
Dependencies are inferred from the claim text.