Acoustic isolator for well logging system
AssigneeBaker Hughes Incorporated
InventorsCharles E. Redding, Herbert W. Beimgraben, Charles Hartmann, Douglas Patterson
Life of this patent
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Abstract
An acoustic isolator for attenuating through-tool acoustic signals comprises a plurality of u-shaped link members, where each link member has two sets of ears. A plurality of yoke members are adapted to fit between cooperating sets of ears. A plurality of pins connect the plurality of u-shaped link members to the plurality of yoke members for providing limited flexural compliance. The isolator may be made from metallic and/or composite materials.
Claims22
An acoustic isolator for attenuating an acoustic signal, comprising:
- a plurality of serially connected universal joints, each joint having substantially the same structure, each joint further including:
- a link member having a set of ears;
- a second member adapted to be inserted between the set of ears;
- and
- a connector between the second member and the set of ears of the link member such that the acoustic signal is attenuated when transmitted from said link member to said second member through said connector.
An acoustic isolator for attenuating an acoustic signal in a downhole acoustic tool string, comprising a plurality of joints, each joint having substantially the same structure, each joint further having at least one first element coupled by at least one connector pin to at least one second element such that an acoustic signal is attenuated when traveling from said first member to said second member through said connector pin.
A method for using an acoustic isolator to attenuate an acoustic signal, comprising:
- coupling a plurality of joints in series, each joint having substantially the same structure, wherein each joint further includes at least one first element connected by at least one pin connector to at least one second element such that the acoustic signal is attenuated when traveling from said first element to said second element through said at least one pin connector.
Dependencies are inferred from the claim text.