Iron Control
Product code RXSOL-81-8167-210
Iron Control
Description
Iron Control Liquid is a concentrated liquid iron-control additive developed for use in oilfield acidizing, well stimulation, well cleaning and related chemical treatment operations.
The product is based on a synergistic combination of organic active compounds, providing effective complexing and sequestration of dissolved iron. During acidizing operations, iron may be introduced into the treatment fluid through dissolution of rust, corrosion products, mill scale, iron-containing deposits, tubulars and formation minerals.
As the acid becomes spent and the pH of the treatment fluid increases, dissolved ferric iron may form insoluble iron-containing precipitates. These precipitates can contribute to formation plugging, permeability impairment, sludge formation and deposition within the wellbore and production system.
Iron Control Liquid complexes dissolved iron and assists in maintaining it in a soluble or dispersed form during the treatment and subsequent fluid recovery.
The concentrated liquid formulation offers convenient handling, rapid mixing and easy incorporation into acid treatment packages.
Application
Iron Control Liquid is designed primarily for:
Matrix Acidizing
Used as an additive in acidizing fluids to control dissolved iron generated during contact between acid and tubulars, scale or formation minerals.
Well Stimulation
Helps minimize secondary iron precipitation during stimulation operations as the injected acid reacts and becomes spent.
Wellbore Cleaning
Suitable for treatment fluids used to remove rust, iron oxide deposits and mineral scale from tubing and associated equipment.
Acid Scale Removal
Can be incorporated into acid descaling formulations where dissolution of iron-containing deposits is expected.
Pickling / Tubing Cleaning
Useful during acid pickling and pre-treatment of tubing where significant quantities of iron may enter the cleaning solution.
Acid Pre-Flush
May be incorporated into selected pre-flush formulations where iron stabilization is required prior to the main acid treatment.
Precautions
Features and Benefits
- Concentrated liquid iron-control additive
- Helps sequester dissolved ferric and ferrous iron
- Reduces risk of secondary iron precipitation
- Helps minimize formation damage caused by iron deposits
- Helps prevent deposition of ferric hydroxide as acid spends
- Useful where significant rust or iron-containing scale is present
- Helps maintain dissolved iron in the treatment fluid
- Suitable for incorporation into acidizing treatment packages
- Compatible with many conventional oilfield acid systems subject to laboratory testing
- Liquid form provides easy handling and accurate dosing
- Rapidly disperses into aqueous treatment fluids
- Useful during well stimulation and wellbore clean-up
- Can supplement scale-removal and acid-cleaning formulations