Seal assembly with thermal expansion restricter
AssigneeGreene, Tweed of Delaware, Inc.
InventorsCharles E. Pitts, Jr., Merle L. Bell, Scott C. Schuette, Jesus Martinez
Life of this patent
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Abstract
A seal assembly having a first seal with a first mating surface and a recess in the first mating surface, and a second seal having a second mating surface and a recess in the second mating surface. The first mating surface of the first seal is adjacent to the second mating surface of the second seal and a first thermal expansion restricter is received simultaneously into the recesses of the first and second mating surfaces of the first and second seals, respectively.
Claims36
A seal assembly comprising:
- a first seal having a first mating surface and a recess in the first mating surface;
- a second seal having a second mating surface and a recess in the second mating surface, the first mating surface of the first seal being in mating engagement with the second mating surface of the second seal;
- a first thermal expansion restricter received simultaneously into the recesses of the first and second mating surfaces of the first and second seals, respectively.
A downhole well tool of the type having an outer generally tubular member, an inner generally tubular member slidably and concentrically positioned within the outer tubular member, an outer tubular port perforating the outer tubular member, an inner tubular port perforating the inner tubular member, and first and second seal assemblies interposed in an annular region between the outer and inner tubular members, a sealed region being formed between the first and second seal assemblies when one of the outer tubular port and inner tubular port is not disposed between the first and second seal assemblies, the first and second seal assemblies each comprising:
- a first seal having a first mating surface and a recess in the first mating surface;
- a second seal having a second mating surface and a recess in the second mating surface, the first mating surface of the first seal being adjacent to the second mating surface of the second seal;
- a first thermal expansion restricter received simultaneously into the recesses of the first and second mating surfaces of the first and second seals, respectively.
Dependencies are inferred from the claim text.