US 11,725,467 B2
Tool string orientation
Jason Allen Hradecky, Heath, TX (US); and John Edward Saville, Denton, TX (US)
Assigned to IMPACT SELECTOR INTERNATIONAL, LLC, Heath, TX (US)
Filed by Impact Selector International, LLC, Heath, TX (US)
Filed on Mar. 10, 2021, as Appl. No. 17/249,697.
Application 17/249,697 is a continuation of application No. 15/574,633, granted, now 10,954,726, previously published as PCT/US2016/037615, filed on Jun. 15, 2016.
Claims priority of provisional application 62/196,229, filed on Jul. 23, 2015.
Prior Publication US 2022/0412173 A1, Dec. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 17/10 (2006.01)
CPC E21B 17/1057 (2013.01) 20 Claims
OG exemplary drawing
 
1. A downhole tool operable to connect to a tool string and reduce friction between the tool string and a sidewall of a wellbore through which the tool string is conveyed, wherein the downhole tool comprises:
a frame operable to connect to the tool string;
a first wheel connected to the frame;
a second wheel connected to the frame; and
a hump disposed at least partially between the first wheel and the second wheel, wherein the hump comprises a plurality of holes extending therethrough between opposing sides of the hump, and wherein, when the downhole tool is connected to the tool string:
the first wheel, the second wheel, and the hump collectively define a curved outer profile extending circumferentially around at least a portion of a circumference of the tool string;
the curved outer profile has a geometric center that is offset from a central axis of the tool string; and
the weight of the tool string and the offset between the geometric center and the central axis cause a torque that urges rotation of the connected downhole tool and tool string within the wellbore toward a position in which the central axis is below the geometric center.