Completion apparatus and methods for use in hydrocarbon wells

Details Completion apparatus and methods for use in hydrocarbon wells Completion apparatus and methods for use in hydrocarbon wells

2005-01-25

2005-01-25

Neuder, William (Department: 3672)

Wells

Processes

Cementing, plugging or consolidating

C166S207000, C166S380000

Reexamination Certificate

active

06845820

ABSTRACT:
The present invention provides a cement shoe assembly for use on a string of tubulars in a well. In one aspect of the invention, the cement shoe assembly includes a housing having a lower portion with an enlarged inside diameter and a drillable cement shoe disposed therein. The shoe includes a weakened portion of material adjacent the enlarged inside diameter portion of the housing and ensures that as a cutting tool passes through the housing, all portions of the cement shoe are removed from the enlarged inside diameter portion, leaving a connection surface clear of debris for a subsequent tubular string. When a smaller tubular is expanded into the enclosed diameter portion of the housing, a connection is made therebetween without enlarging the outer diameter of the housing.

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International Search Report from the European Patent Office for International Appl. No. PCT/GB01/04584, dated Feb. 18, 2002.

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