A well seal tool includes a base tubing and a seal element carried on an exterior of the base tubing. The seal element includes a polymer changeable between a compressed state and a sealing state. The seal element has a first stiffness in response to a first strain rate of the polymer and a second, substantially higher stiffness in response to a second, higher strain rate of the polymer.
申请公布号
WO2014197827(A1)
申请公布日期
2014.12.11
申请号
WO2014US41348
申请日期
2014.06.06
申请人
HALLIBURTON ENERGY SERVICES, INC.;SMITH, CHARLES TIMOTHY
发明人
SMITH, CHARLES TIMOTHY;RICHARDS, WILLIAM MARK;CHANG, ANDY CHENG