US 12,405,436 B2
Electrically conductive fiber optic slickline for coiled tubing operations
Joseph Varkey, Richmond, TX (US); David Kim, Katy, TX (US); Maria Grisanti, Missouri City, TX (US); Montie W. Morrison, Richmond, TX (US); Burcu Unal Altintas, Richmond, TX (US); and Sheng Chang, Sugar Land, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Sep. 1, 2023, as Appl. No. 18/459,727.
Application 18/459,727 is a division of application No. 17/653,663, filed on Mar. 7, 2022, abandoned.
Application 17/653,663 is a continuation of application No. 14/917,630, granted, now 11,268,329, previously published as PCT/US2013/059779, filed on Sep. 13, 2013.
Prior Publication US 2023/0407711 A1, Dec. 21, 2023
Int. Cl. E21B 17/20 (2006.01); E21B 17/00 (2006.01); G02B 6/44 (2006.01); G02B 6/50 (2006.01); G02B 6/52 (2006.01); H01B 9/00 (2006.01)
CPC G02B 6/4427 (2013.01) [E21B 17/003 (2013.01); E21B 17/206 (2013.01); G02B 6/4416 (2013.01); G02B 6/4458 (2013.01); G02B 6/502 (2013.01); G02B 6/52 (2013.01); H01B 9/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A downhole assembly for deployment in a well at an oilfield, the downhole assembly comprising:
an electrically conductive fiber optic slickline for deployment in the well, the electrically conductive fiber optic slickline comprising:
a fiber optic thread disposed in a filler matrix;
a metal tube disposed about and encasing the fiber optic thread and the filler matrix;
an electrically conductive member circumferentially surrounding the metal tube, the fiber optic thread, and the filler matrix;
an electrically insulating polymer circumferentially surrounding the metal tube, the fiber optic thread, the filler matrix, and the electrically conductive member;
a synthetic fiber layer circumferentially surrounding the metal tube, the fiber optic thread, the filler matrix, the electrically conductive member, and the electrically insulating polymer;
an outer cladding disposed about and encasing the metal tube, the fiber optic thread, the filler matrix, the electrically conductive member, the electrically insulating polymer, and the synthetic fiber layer; and
an adherent layer disposed between and contacting the synthetic fiber layer and the outer cladding to enhance adherence between the synthetic fiber layer and the outer cladding.