VitriSeal is a low-viscosity, mineralizing glass solution developed for restoring well barrier integrity and eliminating sustained annulus pressure.

By reacting with cement, formation, and steel to form self-healing mineral barriers, VitriSeal delivers long-term remediation for compromised well sections, micro-annuli, and failed cement jobs. It is capable of penetrating narrow voids (tested down to 11 µm) and self-healing after stress cycling, offering a step-change in remediation performance for barrier repair and enhancement.

Its unique performance is tested across extensive laboratory studies and Joint Industry Projects,  demonstrating strong potential for long-term stability and durability required for barrier integrity.


Benefits

Restores integrity in failed primary or secondary cement barriers

Injectable into micro-annuli, mud channels, and fractures

Maintains sealing integrity after pressure loading and temperature cycling

Self-healing capability proven after repeated stress fracturing

Reduces need for costly milling or section replacement

Effective permeability reduction in micro-annuli from 4.8 mD to 0.01 mD

Key Features

Glass-based solution with density range from 9.2 to 12.5 ppg  (1.1-1.5 sg)

Low viscosity (water like) and particle size 

Available in high density beaded form with 156 lb/ft3 (2.5 sg) density

Injects into and seals micro-annuli (tested down to 11µm micro-annuli)

Forms strong chemical bonds with cement, steel, and formation

Demonstrated sealing and self-healing under pressure and thermal cycling

Compatible with various deployment methods: perforation and wash, balanced plug, casing puncture and circulation tools, injection or placement through topside wellhead valves.

Applications

  • Remediation of failed cement jobs (liners, casing, plugs) even in highly contaminated and tight zones

  • Curing of sustained annulus pressure

  • CO₂ storage well barriers requiring integrity under temperature cycling and acid exposure

  • P&A operations where zonal isolation is required with limited injectability

  • Repairing failed casing shoe LOT and FIT

  • Replacing or complementing hesitation squeezes and other cement remedial techniques

Publications and Case Studies

  • SPE-205445 "The Use of Controlled Dissolution Glasses to Consolidate and Create Permeable or Impermeable Minerals in Formation"

  • SPE-223669 "Assessing a Novel Glass-Based Fluid for Annular Barrier Remediation in Cemented Well Sections"