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Protective shroud for offshore oil wells

  • US 4,283,159 A
  • Filed: 10/01/1979
  • Issued: 08/11/1981
  • Est. Priority Date: 10/01/1979
  • Status: Expired due to Term
First Claim
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1. An oil rig instrumentality comprising a protective shroud member comprising a generally cylindrically shaped structure of a length sufficient to extend from the bottom of a body of water and out of the water at the surface, and of sufficient diameter to encompass an oil wellhead and attendant rigging servicing an underwater well, said structure having near its bottom in a position assuming an underwater location above and near the bottom of said body of water a plurality of pumping means distributed about the circumference of said structure for pumping liquids with said pumps coupled to water jet structure outside the cylinder, and including control means individually controlling operation of each of said pumping means, thereby to provide controlled water jet motive forces for moving said structure relative to said bottom of the body of water.

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