Apparatus and method for cementing well liners
Apparatus and method are claimed for cementing a liner in a well bore in which the apparatus may comprise: a setting tool having a tubular mandrel connected in a pipe string for extension through the liner; a liner wipe releasably disposed within the liner near one end of the mandrel; a plug member for effecting a movable seal behind cement as it is pumped through the pipe string into the liner; a seal assembly sealingly engaging the exterior of the mandrel and the interior of the liner above the liner wiper; and a latch assembly releasably connecting the seal assembly to the liner so as to permit limited axial movement of the mandrel without disturbing the axial position of the seal assembly. In the method of cementing a liner using the apparatus, the force due to pressure applied to the seal assembly, during pumping of cement, is transferred to the liner without transfer to the mandrel.
- Assignee:
- Brown Oil Tools, Inc.
- Patent Number(s):
- US 3934652
- OSTI ID:
- 7281551
- Resource Relation:
- Patent File Date: Filed date 15 Oct 1974
- Country of Publication:
- United States
- Language:
- English
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