Apparatus for well completion
Patent
·
OSTI ID:6303079
This invention relates to apparatus for completing wells; and, more particularly, to apparatus for inhibiting the production of sand from unconsolidated or incompetent subsurface formations. A sealing member for use with well-completion apparatus, is arranged to maintain an effective fluid seal with a well bore wall, whether the pressure in the isolated portion is greater than or less than the pressure exterior of the sealing member. To accomplish this, annular sealing members are concentrically arranged inside of and around a rigid annular member, with a support or the like being located adjacent to the rear of the sealing members and rigid member. The forward faces of the sealing members extend slightly beyond the forward end of the rigid member. (7 claims)
- Assignee:
- Schlumberger Technol Corp.
- Patent Number(s):
- US 3347322
- OSTI ID:
- 6303079
- Country of Publication:
- United States
- Language:
- English
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