US 12,435,580 B2
Stabilizer including modified helical wellbore stabilizing elements
Philip Park-Hung Leung, Houston, TX (US); Michael John Strachan, Houston, TX (US); and John Kenneth Snyder, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jun. 2, 2021, as Appl. No. 17/336,922.
Claims priority of provisional application 63/034,732, filed on Jun. 4, 2020.
Prior Publication US 2021/0381323 A1, Dec. 9, 2021
Int. Cl. E21B 17/10 (2006.01); E21B 19/24 (2006.01)
CPC E21B 17/1078 (2013.01) [E21B 17/10 (2013.01); E21B 19/24 (2013.01); E21B 17/1042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A stabilizer for use in a wellbore, comprising:
a downhole component coupleable to a downhole conveyance in the wellbore; and
two or more helical wellbore stabilizing elements extending radially outward from the downhole component and defining two or more flow paths having two or more flow path axes parallel with an axis of rotation of the downhole component, the two or more helical wellbore stabilizing elements shaped such that an annular flow area between leading edges of adjacent helical wellbore stabilizing elements and between trailing edges of the adjacent helical wellbore stabilizing elements is variable along at least a portion of a length (L) of the two or more helical wellbore stabilizing elements, and further wherein a first annular flow area at the leading edges of the adjacent helical wellbore stabilizing elements and a second annular flow area at trailing edges of the adjacent helical wellbore stabilizing elements are greater than a third annular flow area at middle of the adjacent helical wellbore stabilizing elements, and such the two or more flow path axes are unobstructed along an entire portion of the length (L).