US 11,988,070 B2
Drill string mountable wellbore cleanup apparatus and method
Simon Leiper, Dubai (AE); and Kevin Robertson, Insch Aberdeensir (GB)
Assigned to Odfjell Well Services Norway AS, Tananger (NO)
Filed by Odfjell Well Services Norway AS, Tananger (NO)
Filed on Jan. 17, 2023, as Appl. No. 18/155,339.
Application 18/155,339 is a continuation of application No. 17/215,834, filed on Mar. 29, 2021, granted, now 11,560,773, issued on Jan. 24, 2023.
Application 17/215,834 is a continuation of application No. 16/846,500, filed on Apr. 13, 2020, granted, now 10,961,822, issued on Mar. 30, 2021.
Application 16/846,500 is a continuation of application No. 16/259,617, filed on Jan. 28, 2019, granted, now 10,619,454, issued on Apr. 14, 2020.
Application 16/259,617 is a continuation of application No. 15/888,287, filed on Feb. 5, 2018, granted, now 10,190,393, issued on Jan. 29, 2019.
Application 15/888,287 is a continuation of application No. 15/390,881, filed on Dec. 27, 2016, granted, now 9,885,227, issued on Feb. 6, 2018.
Application 15/390,881 is a continuation of application No. 14/829,136, filed on Aug. 18, 2015, granted, now 9,528,325, issued on Dec. 27, 2016.
Application 14/829,136 is a continuation of application No. 13/710,644, filed on Dec. 11, 2012, granted, now 9,109,417, issued on Aug. 18, 2015.
Claims priority of provisional application 61/665,110, filed on Jun. 27, 2012.
Prior Publication US 2023/0250709 A1, Aug. 10, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 17/00 (2006.01); E21B 17/04 (2006.01); E21B 17/10 (2006.01); E21B 19/16 (2006.01); E21B 37/00 (2006.01); E21B 37/02 (2006.01)
CPC E21B 37/02 (2013.01) [E21B 17/006 (2013.01); E21B 17/04 (2013.01); E21B 17/1078 (2013.01); E21B 19/16 (2013.01); E21B 37/00 (2013.01)] 20 Claims
OG exemplary drawing
 
9. A method of cleaning a well comprising the steps of:
a) providing drill pipe joint having first and second end portions and a shaped portion in between the first and second end portions;
b) mounting a support sleeve to the drill pipe joint in between the first and second end portions;
c) attaching centralizers to the opposing ends of the support sleeve;
d) carrying one or more debris cleaning tools on the support sleeve in between the centralizers, each debris cleaning tool enabling debris removal from a wellbore;
e) locking one or more clamps to the drill pipe joint, wherein the one or more locking clamps longitudinally restricts longitudinal movement of the support sleeve relative to the drill pipe joint;
f) adding the drill pipe joint to a drill string; and
g) cleaning the wellbore with the drill pipe joint of steps “a” through “e”.