US 12,247,445 B2
Wireline cased-hole standoff
Guy Wheater, London (GB); and Stuart Huyton, Elgin (GB)
Filed by Guy Wheater, London (GB); and Stuart Huyton, Elgin (GB)
Filed on Sep. 12, 2023, as Appl. No. 18/367,238.
Application 18/367,238 is a continuation of application No. 17/803,168, filed on Sep. 21, 2021, granted, now 11,753,879.
Application 17/803,168 is a continuation of application No. 16/882,927, filed on May 26, 2020, granted, now 11,125,025, issued on Sep. 21, 2021.
Prior Publication US 2024/0003201 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 17/10 (2006.01)
CPC E21B 17/1085 (2013.01) 20 Claims
OG exemplary drawing
 
15. A method for reducing wireline cable drag and tension during wireline logging operations comprising:
coupling one or more wireline cased-hole standoffs (WCSOs) to a wireline cable,
wherein the one or more WCSOs comprise:
a pair of cable insert halves, wherein each cable insert half comprises a flanged end, wherein each flanged end is tapered and comprises a length between 1.0 cm and 3.0 cm;
a pair of opposing WCSO body halves;
a plurality of lanyard holes disposed on both body halves, wherein the plurality of lanyard holes travel through a tapered portion of each body half;
a pair of outer low-friction shells configured to reduce friction between the WCSO and cased-hole; and
one or more fasteners, wherein the one or more fasteners are configured to couple the pair of cable insert halves, the pair of opposing WCSO body halves, and the pair of outer shells together onto the wireline cable, wherein the one or more fasteners comprise shell bolts configured to secure the pair of outer shells to the opposing WCSO body halves, wherein the shell bolts travel through shell bolt clearance holes disposed on the outer shells and are received by shell bolt female threads disposed on the opposing WCSO body halves, and further wherein the shell bolts comprise a diameter of 4 mm.