US 10,208,546 B2 · Stabilizer assembly

Abstract

A stabilizer assembly for incorporation in a drill string. The stabilizer assembly includes a tubular member and a stabilizer sleeve slidably disposed about the tubular member. The tubular member has a first castellated portion extending externally around the tubular member, and the stabilizer sleeve has a second castellated portion engaging the first castellated portion. The tubular member includes a first shoulder extending externally around the tubular member, and the stabilizer sleeve further includes a second shoulder extending internally around the stabilizer sleeve. The first and second shoulders at least partially define an annular space between the tubular member and the stabilizer sleeve. A key is disposed within the annular space such that an axial load path between the tubular member and the stabilizer sleeve is substantially through the first and second shoulders and the key and substantially not through the first and second castellated portions.

Claims15

Dependent claims

A stabilizer assembly for incorporation in a drill string and comprising a tubular member and a stabilizer sleeve slidably disposed about the tubular member, the tubular member comprising a first castellated portion extending externally around the tubular member, and the stabilizer sleeve comprising a second castellated portion engaging the first castellated portion, wherein:

the tubular member further comprises a first shoulder extending externally around at least a portion of the tubular member;
the stabilizer sleeve further comprises a second shoulder extending internally around at least a portion of the stabilizer sleeve;
the first and second shoulders at least partially define an annular space between the tubular member and the stabilizer sleeve;
and
the stabilizer sleeve further comprises a key disposed within the annular space such that an axial load path between the tubular member and the stabilizer sleeve is substantially through the first and second shoulders and the key and substantially not through the first and second castellated portions.

2 more elements

A method of assembling a stabilizer assembly, wherein the stabilizer assembly is for incorporation in a drill string and comprises a tubular member and a stabilizer sleeve, comprising:

sliding the stabilizer sleeve axially along the tubular member to a first axial position;
inserting a key into an at least partially annular space between the tubular member and the stabilizer sleeve while the stabilizer sleeve is at the first axial position;
and
sliding the stabilizer sleeve axially along the tubular member to a second axial position at which the key contacts:
a first shoulder extending externally around at least a portion of the tubular member;
and
a second shoulder extending internally around at least a portion of the stabilizer sleeve.

4 more elements

Dependencies are inferred from the claim text.

Stabilizer assembly

Life of this patent

Stabilizer assembly

Life of this patent

Abstract

Claims15