| 摘要 |
A swellable packer for use in a subterranean well can include a base pipe and a swellable seal element, the seal element having a modulus of elasticity which decreases in a direction outward from the base pipe. A method of constructing a packer for use in a subterranean well can include providing a swellable seal element for the packer, the swellable seal element having a modulus of elasticity which decreases from an interior to an exterior of the seal element. A well system can include a swellable packer including a swellable seal element which swells and sealingly contacts a well surface, the seal element having a modulus of elasticity which decreases in a direction toward the well surface. |
