US 12,320,216 B2
Sensor transportation apparatus for a wireline logging tool string
Stephen Peter McCormick, Auckland (NZ)
Assigned to PETROMAC IP LIMITED, Auckland (NZ)
Filed by PETROMAC IP LIMITED, Auckland (NZ)
Filed on Nov. 21, 2023, as Appl. No. 18/515,428.
Application 18/515,428 is a continuation of application No. 17/805,694, filed on Jun. 7, 2022, granted, now 11,873,692.
Application 17/805,694 is a continuation of application No. 16/801,901, filed on Feb. 26, 2020, granted, now 11,371,306, issued on Jun. 28, 2022.
Application 16/801,901 is a continuation in part of application No. 16/027,113, filed on Jul. 3, 2018, granted, now 10,612,333, issued on Apr. 7, 2020.
Application 16/027,113 is a continuation in part of application No. 15/825,074, filed on Nov. 28, 2017, granted, now 10,364,627, issued on Jul. 30, 2019.
Application 15/825,074 is a continuation of application No. 14/441,833, granted, now 9,863,198, issued on Jan. 9, 2018, previously published as PCT/NZ2013/000210, filed on Nov. 15, 2013.
Claims priority of application No. 603660 (NZ), filed on Nov. 16, 2012; application No. 603662 (NZ), filed on Nov. 16, 2012; and application No. 613986 (NZ), filed on Aug. 6, 2013.
Prior Publication US 2024/0084657 A1, Mar. 14, 2024
Int. Cl. E21B 23/14 (2006.01); E21B 17/10 (2006.01); E21B 47/00 (2012.01); E21B 47/01 (2012.01); F16N 9/04 (2006.01); F16N 11/10 (2006.01); F16N 17/00 (2006.01)
CPC E21B 23/14 (2013.01) [E21B 17/10 (2013.01); E21B 17/1042 (2013.01); E21B 17/1057 (2013.01); E21B 47/00 (2013.01); E21B 47/01 (2013.01); F16N 9/04 (2013.01); F16N 17/00 (2013.01); F16N 11/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A sensor transportation apparatus to convey an elongate sensor assembly through a wellbore, the sensor transportation apparatus comprising:
at least one engagement structure to connect the sensor transportation apparatus to the elongate sensor assembly,
at least one pair of axles,
at least one pair of wheels corresponding with the pair of axles, each wheel mounted on a respective said axle to rotate about an axis of rotation perpendicular to a longitudinal axis of the elongate sensor assembly when the sensor transportation apparatus is connected to the elongate sensor assembly, and
a pair of protection structures, each protection structure extending longitudinally around an exterior surface of a corresponding wheel from in front of the wheel to behind the wheel, to thereby prevent a side of the wheel from contacting a wall of the wellbore, and
a central member extending longitudinally from in front of the wheels to behind the wheels, wherein an inner end of each axle is supported by the central member,
wherein each wheel extends above and below the respective protection structure to contact a side of the wellbore.