Apparatus and method for generating sector residence time images of downhole tools
First Claim
Patent Images
1. A method of determining a parameter relating to a downhole tool during drilling of a wellbore, comprising:
- defining a plurality of sectors relating to the downhole tool;
estimating time taken by a sensor to span a sector in the plurality of sectors during rotation of the downhole tool in the wellbore (“
sector residence time”
);
providing an image of the sector residence times for the plurality of sectors; and
determining the parameter of the downhole tool utilizing the provided image of the sector residence times.
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Abstract
An apparatus and method for providing images of a downhole tool during drilling of a wellbore are provided. A sensor on a rotating tool occupies a number of azimuthal sectors of the wellbore which are determined by a processor. The processor determines a time during which the sensor is in each of the azimuthal sectors during each revolution of the tool and provides a depth-correlated image of the sector residence times for the tool.
16 Citations
21 Claims
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1. A method of determining a parameter relating to a downhole tool during drilling of a wellbore, comprising:
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defining a plurality of sectors relating to the downhole tool; estimating time taken by a sensor to span a sector in the plurality of sectors during rotation of the downhole tool in the wellbore (“
sector residence time”
);providing an image of the sector residence times for the plurality of sectors; and determining the parameter of the downhole tool utilizing the provided image of the sector residence times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for use in a wellbore, comprising:
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a downhole tool configured to be conveyed into the wellbore at an end of a drill string; a storage device containing information about a plurality of sectors relating to the downhole tool; and a processor configured to; estimate time taken by a sensor to span a sector in the plurality of sectors during rotation of the downhole tool in the wellbore (“
sector residence time”
), andprovide an image of the sector residence times for the plurality of sectors. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer-readable medium having stored thereon instructions which when used by at least one processor performs a method, the method comprising:
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defining a plurality of sectors related to a downhole tool; estimating time taken by a sensor to span a sector of the plurality of sectors during rotation of the downhole tool in the wellbore (“
sector residence time”
); andproviding an image of the sector residence times for the plurality of sectors.
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Specification