Application focus

Inspeksi wire wrap screens: setiap slot, setiap filter.

Wire wrap screens — also known as direct wrap — are the workhorse of sand control completions. Their downhole performance depends on one number: slot consistency. CTRL+ optical metrology measures every single slot, on every single screen, against ISO 17824 and API 19SS.

Why it matters

Why slot consistency drives sand control screen reliability

A wire wrap screen is a stack of identical slots, hundreds of microns wide, holding back formation sand for years under pressure cycling, abrasion and erosion. A single drifted slot — too wide, too narrow, or with edge damage — becomes a sand path. The well loses production, the operator pays for workover, and rework subsea is rarely possible.

Traditional QC samples 1 slot in 100 with a manual feeler gauge. CTRL+ optical metrology measures 100 % of the slots on every screen, before the screen leaves the manufacturing line or enters the operator's yard.

Method

How CTRL+ inspects wire wrap screens

  1. 1

    Screen loading

    Wire wrap screen received line-side at manufacturing or at operator yard. Instrument auto-detects joint length, slot density and base pipe geometry.

  2. 2

    Optical scan

    Full-length 360° optical scan with most+ or bost+. Every slot captured at 5-15 µm resolution depending on aperture range. No contact, no operator-induced drift.

  3. 3

    Per-slot analysis

    Slot width, drift across the joint, edge defects and obstructions automatically flagged. Statistical distribution (D50, D90, σ) computed against the screen spec.

  4. 4

    Certificate generation

    ISO 17824 / API 19SS conformity PDF + machine-readable CSV exported per joint and per batch. Operators integrate the CSV into their QC file.

Coverage

Wire wrap variants we inspect

Variant
Synonyms
Typical slot range
CTRL+ instrument
Wire wrap
Direct wrap
100–500 µm
most+, bost+
Pre-pack wire wrap
Pre-packed screen
150–600 µm
most+, olmost+
Wedge wire screen
Wedge wire filter screen
50–800 µm
most+, bost+
Slotted liner
200–1000 µm
most+
Conformity

Standards covered

ISO 17824

Petroleum and natural gas industries — Downhole equipment — Sand screens. International reference for the design and acceptance of wire wrap, direct wrap and wedge wire filter screens.

API 19SS

American Petroleum Institute — Sand control screens. US / global equivalent of ISO 17824, covering wire wrap and wedge wire screen acceptance criteria.

FAQ

Common questions about wire wrap screen inspection

Does optical metrology measure slot drift along a wire wrap screen?

Yes. Each slot is captured individually along the full joint length, then analyzed for axial drift. Drift trends invisible to manual feeler gauges are flagged automatically.

How long does a wire wrap screen inspection take per joint?

Typically 2-5 minutes for a 6-12 m joint, depending on slot density. A full 60 m horizontal completion can be inspected in under an hour.

Can the same instrument inspect direct wrap and wedge wire filter screens?

Yes. most+ and bost+ cover wire wrap, direct wrap, wedge wire filter screen, prepack and slotted liner geometries through reconfigurable optical heads.

See the full FAQ →

Discuss your wire wrap QC project

Manufacturer line-side integration or operator incoming audit — same instrument, same certificate.

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