Method and device for improving the coefficient of transmission to geological formations of energy created by a well seismic source
Inflatable tool with rib expansion support Patent #: 4979570
ApplicationNo. 792404 filed on 02/03/1997
US Classes:166/387, With sealing feature (e.g., packer)166/196, Central support has shoulders expanding sealing portion, or telescopes166/206EXPANSIBLE ANCHOR OR CASING
ExaminersPrimary: Schoeppel, Roger J.
International ClassE21B 033/12
AbstractA packer for sealing a space downhole in a well. The packer includes a deformable sheath having a body and first and second ends for defining an interior volume proximate to a tool surface. A material located within the interior volume is deformable, when the sheath second end is moved toward the sheath first end, to move the deformable sheath into the downhole space. The sheath can function as a sealing element or a backup element, and can be applied to different structures and tool configurations downhole in a wellbore. For example, the packer can be applied to plugs, to through tubing mandrals, and to other well tools in open hole or in cased wellbore configurations. The packer resists damage to the seal elements, provides confirmation of the packer setting force, and is less expensive than conventional packer designs.