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US 2002/0053433 A1Published application
Cement diverter system for multilateral junctions and method for cementing a junction
AssigneeBaker Hughes Incorporated
InventorsAlan Mackenzie, Aubrey C. Mills, Douglas J. Murray
Life of this patent
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Abstract
A cement diverter system and method for cementing a junction in a wellbore wherein a cementing operation and reverse circulating operation are achievable in a single run in the hole.
Claims12
A cement diverter system for a wellbore comprising:
- a mandrel;
- a shear sub mounted to said mandrel with at least one shearable fastener;
- an inner sleeve and profiled ring attached to said shear sub;
- a cement sleeve in fluid passage inhibiting contact with said inner sleeve and profiled ring, said cement sleeve being displaceable from contact with said inner sleeve and profiled ring;
- and
- a pack off assembly attached to said mandrel.
3 more elements
Dependencies are inferred from the claim text.