Patent ID: 9617818
Date: 2017-04-11
CPC Classifications: E21B,F16J,F16L

Claim:
1. A system, comprising: an inner body; an outer body disposed about the inner body; and a grooved seal, wherein the grooved seal comprises a sealing face and first and second side faces, wherein the first side face comprises a first groove, the second side face comprises a second groove, and the sealing face comprises a third groove; wherein one of the inner body or the outer body comprises an annular channel, and the grooved seal is disposed in the annular channel to seal an annular space between the inner body and outer body; wherein the sealing face seals against one of the inner body or the outer body, the first side face having the first groove seals against a first sidewall of the annular channel, and the second side face having the second groove seals against a second sidewall of the annular channel; and wherein the first groove is configured to increase contact stress against the first sidewall, the second groove is configured to increase contact stress against the second sidewall, and the third groove is configured to increase contact stress against the one of the inner body or the outer body.