Apparatus and Method for Generating Sector Residence Time Images of Downhole Tools
First Claim
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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 the sectors in the plurality of sectors to span the wellbore during rotation of the downhole tool in the wellbore (“
sector residence time”
); and
determining the parameter of the bottomhole assembly utilizing 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.
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Citations
22 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 the sectors in the plurality of sectors to span the wellbore during rotation of the downhole tool in the wellbore (“
sector residence time”
); anddetermining the parameter of the bottomhole assembly utilizing the sector residence times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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; a processor configured to; estimate time taken by a sensor to span the sectors in the plurality of sectors during rotation of the downhole tool in the wellbore (“
sector residence time”
); andprovide the image corresponding to the plurality of sectors utilizing the sector residence times. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. 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 relating a downhole tool; estimating time taken by a sensor to span each the sectors during rotation of the downhole tool in the wellbore (“
sector residence time”
); andproviding an image corresponding to the plurality of sectors utilizing the sector residence times.
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Specification