Composite Cables

Composite Cables


Wells are becoming deeper, with longer horizontal sections and will be more hostile (HPHT).

The associated well services challenges are;

  • To ensure safe well containment sealing against the wire at surface.
  • To transport and control down-hole tools to HPHT environment production zones.
  • To provide the down-hole tools with the power to deliver (conventional and new) services at those HPHT production zones.
  • To maintain structural well intervention integrity in a highly corrosive environment

The Paradigm Technology’s Composite line addresses this;

  • Smooth and round outer surface on a wire slick line allowing standard stuffing box gland sealing against a polymeric coated wire.
  • With the lower frictional cable drag of the composite logging line, a down-hole tractor can pull such a lighter in weight composite logging line further out.
  • The higher SWL of a composite line (resulting in higher cable-head SWL at depth) ensures safe pull back cable loads from extended reach depths.
  • In composite line the tensile load part doubles as insulation so leaving more area for conductors (conventional logging cable wastes ca. 20% volume on insulation)
  • Polymeric’s long term resistance to sour and corrosive chemicals (gas & fluid) is superior to that of any alloy.

The key aspects of any wire supported well services interventions in the immediate or near distant future are ; wire weight, strength, frictional drag, corrosion resistance, operational safety and simplicity, increased requirement for more down-hole tool power and the need for real-time control (data transfer / optic fibre).

Technical comparisons

Weight

  • Paradigm composite slickline is 5 x lighter than conventional slickline (compared 0.160 Supa75).
  • Paradigm composite logging line is 3.5 x lighter than conventional mono-conductor cable (compared 7/32” alloy mono).

Strength

  • Paradigm composite slickline is 4.8 x stronger than conventional slickline at depth (compared 0.160” Supa75 at vertical 30kft).
  • Paradigm composite logging line is 4.4 x stronger than conventional mono-conductor cable (compared 5/16” alloy mono at vertical 30kft).

Friction

  • Paradigm composite slickline frictional drag force is 15 x lower than conventional slickline (compared 0.160” Supa75).
  • Paradigm composite logging line frictional drag force is 11 x lower than conventional mono-conductor cable (compared 7/32” alloy mono).

Corrosion

  • Paradigm polymeric coating is 4 x longer resistant to HT (200C) gasses such as SO2, H2S, CO, NH3 and CH4.

Sealing

  • Paradigm polymeric coating has shown 0 leakage with normal simple stuffing gland type (compared with grease injected flow tube sealing).

Power

  • Paradigm composite logging line can deliver 4 x the power at more than 8 x the horizontal reach or tool depth (compared with 5/16” alloy mono).

Data

Paradigm composite logging and optic fibres, single mode and dual mode type for DAS/DTS measurements and 100 GB/s data transfer.

Back to top