Apparatus and method for performing downhole measurements
First Claim
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1. An apparatus for performing a function in a flowing fluid, comprising:
- an apparatus body comprises an elongated member having a longitudinal axis; and
a drag member associated with said apparatus body and configurable between a drag configuration for moving with said fluid wherein said apparatus has a first drag and a reduced drag configuration for moving against said fluid wherein said apparatus has a second drag which is less than said first drag, wherein said drag member comprises means positionable relative to said apparatus body and said longitudinal axis between said drag configuration wherein said means extends away from said longitudinal axis and said reduced drag configuration wherein said means is substantially parallel to said longitudinal axis.
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Abstract
An apparatus for performing a function in a flowing fluid includes an apparatus body and a drag member associated with the apparatus body. The drag member is configurable between drag configuration for moving with the fluid wherein the apparatus has a first drag and a reduced drag configuration for moving against the fluid wherein the apparatus has a second drag which is less than the first drag.
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Citations
19 Claims
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1. An apparatus for performing a function in a flowing fluid, comprising:
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an apparatus body comprises an elongated member having a longitudinal axis; and
a drag member associated with said apparatus body and configurable between a drag configuration for moving with said fluid wherein said apparatus has a first drag and a reduced drag configuration for moving against said fluid wherein said apparatus has a second drag which is less than said first drag, wherein said drag member comprises means positionable relative to said apparatus body and said longitudinal axis between said drag configuration wherein said means extends away from said longitudinal axis and said reduced drag configuration wherein said means is substantially parallel to said longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for positioning an apparatus relative to a flowing fluid, comprising the steps of:
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providing a flow of fluid;
providing an apparatus comprising an apparatus body and a drag member associated with said apparatus body and configurable between a drag configuration having a first drag for moving with said flow of fluid and a reduced drag configuration having a second drag for moving against said flow of fluid wherein said second drag is less than said first drag;
positioning said apparatus in said flow of fluid with said drag member in said reduced drag configuration whereby said apparatus moves against said flow of fluid;
configuring said drag member in said drag configuration whereby said apparatus moves with said flow of fluid;
selectively controlling the position of the apparatus in said flow of fluid; and
measuring with said apparatus at least one condition of said flowing fluid at said selected position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification