Electrically conductive fiber optic slickline for coiled tubing operations
AssigneeSchlumberger Technology Corporation
InventorsJoseph Varkey, David Kim, Maria Grisanti, Montie W. Morrison, Burcu Unal Altintas, Sheng Chang
Life of this patent
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Abstract
A slickline that includes both electrically conductive and fiber optic capacity. The slickline includes a fiber optic thread or bundle of threads that may be surrounded by an electrically conductive member such as split half shells of copper elements. Further, these features may be disposed in a filler matrix so as to provide a cohesiveness the core of the slickline. So, for example, the line may be more effectively utilized in downhole applications such as coiled tubing operations, without undue concern over collapse or pinhole issues emerging in the line.
Claims19
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.
An electrically conductive fiber optic slickline for deployment in a well, the electrically conductive fiber optic slickline comprising:
- a fiber optic thread;
- a metal tube disposed about and encasing the fiber optic thread;
- an electrically conductive member disposed circumferentially about the metal tube and the fiber optic thread;
- an electrically insulating polymer disposed about the metal tube, the fiber optic thread, and the electrically conductive member;
- a synthetic fiber layer circumferentially surrounding the metal tube, the fiber optic thread, a 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 electrically conductive member, and the electrically insulating polymer, 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.
Dependencies are inferred from the claim text.