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Apparatus and method for stripping solids and fluids from a string used in drilling or servicing wells

  • US 10,107,063 B2
  • Filed: 09/15/2017
  • Issued: 10/23/2018
  • Est. Priority Date: 01/27/2014
  • Status: Active Grant
First Claim
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1. A seal for placement within a supporting body, the supporting body defining a generally cylindrical passage for receiving a pipe, the seal comprising:

  • three or more sealing members arranged circumferentially around the generally cylindrical passage and circumferentially overlapping within the supporting body, the three or more sealing members defining an opening to receive the pipe, the opening being aligned with the generally cylindrical passage, and the three or more sealing members forming an annular seal around the pipe when the pipe is in the opening,wherein the sealing members are configured to accommodate an expansion of the pipe by moving to an expanded position by circumferential sliding contact of the sealing members along circumferentially slanted cuts between the sealing members.

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