Multi-modal wellbore cleaning systems and associated tools
AssigneeSpecialised Energy Solutions
InventorJohn Thomson
Life of this patent
Estimating the term…
Abstract
A wellbore cleaning tool includes an elongate body having at least one groove positioned along the body, one or more tool connectors coupled to the groove of the body, and one or more engagement tools coupled to the body through the tool connector, whereby an annular gap is formed between the tool body and the one or more engagement tools. The one or more engagement tools are configured to engage with an inner surface of a pipe.
Claims20
A wellbore cleaning tool deployable into a wellbore extending through a subsurface region, the wellbore cleaning tool comprising:
- an elongate tool body and comprising at least one annular groove positioned along the tool body and connectable to a tool string deployable into the wellbore;
- one or more tool connectors coupled to the annular groove of the tool body;
- and
- one or more engagement tools coupled to the tool body through the one or more tool connectors whereby an annular gap is formed entirely between the tool body and the one or more engagement tools, and wherein the one or more engagement tools are configured to clean an inner surface of a tubular member positioned in the wellbore.
A wellbore cleaning tool deployable into a wellbore extending through a subsurface region, the wellbore cleaning tool comprising:
- an elongate tool body and comprising an annular upper groove and an annular lower groove spaced along a longitudinal length of the body;
- a retainer assembly mounted on each of the upper groove and the lower groove of the tool body, wherein the retainer assembly comprises a sleeve and a one or more bearings coupled to the sleeve;
- a centralizer coupled to each of the retainer assembly, the centralizer comprising a first end and a longitudinally opposed second end, wherein the second end comprises an annular groove radially surrounding the second end;
- and
- one or more engagement tools coupled to the centralizer and configured to clean an inner surface of a tubular member positioned in the wellbore, wherein a portion of the one or more engagement tools is received in the annular groove, and wherein an annular gap is formed between the one or more engagement tools and the tool body permitting the centralizer and the one or more engagement tools to rotate independently of each other.
A method for providing a wellbore cleaning tool deployable into a wellbore extending through a subsurface region, the method comprising:
- (a) providing a tool body comprising an annular upper groove and an annular lower groove spaced along a longitudinal length of the body;
- (b) coupling one or more bearings to sleeves of a plurality of retainer assemblies;
- (c) mounting the plurality of retainer assemblies on the upper groove and the lower groove of the tool body;
- (d) coupling centralizers to the plurality of retainer assemblies, each centralizer comprising a first end and a longitudinally opposed second end, wherein the second end comprises an annular groove radially surrounding the second end, and wherein the annular groove is downhole from the first end;
- and
- (e) sliding an engagement tool over the centralizer, wherein a portion of the engagement tool is received in the annular groove and the engagement tool is configured to clean an inner surface of a tubular member positioned in the wellbore.
Dependencies are inferred from the claim text.