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Subsea data and power transmission inductive coupler and subsea cone penetrating tool

  • US 7,847,671 B1
  • Filed: 07/29/2009
  • Issued: 12/07/2010
  • Est. Priority Date: 07/29/2009
  • Status: Expired due to Fees
First Claim
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1. A data and power transmission inductive coupler, comprising:

  • a) a U-shaped external transformer to be mounted on a stationary rig or subsea construction, said U-shaped external transformer having a coil and an inner circumferential surface;

    b) an O-shaped internal transformer to be mounted on a downhole tool having a maximum tool diameter, said O-shaped internal transformer having a coil and an outer circumferential surface for mating with said inner circumferential surface of said U-shaped external transformer;

    c) said outer circumferential surface of said O-shaped transformer being equal to or smaller than said inner circumferential surface of said U-shaped external transformer mating therewith;

    d) said O-shaped transformer and said U-shaped transformer have no wire connection therebetween;

    e) said O-shaped transformer being configured to be wired to tool electronics and batteries;

    f) said U-shaped transformer being configured to be wired to surface equipment or other subsea remotely operated units; and

    g) said O-shaped transformer having an outer diameter not exceeding the maximum tool diameter, and said O-shaped transformer being divided into two equal halves along said diameter for assembling said O-shaped transformer on the tool.

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