Midstream — Process Challenge

Pipeline Corrosion Inhibitors for Wet-Gas & Multiphase

Internal corrosion inhibition for wet-gas, multiphase, and water-cut pipelines
Updated Jun 2026
Solution Approach

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Treatment Workflow
1
System Assessment
Characterize operating conditions — fluid composition, temperature, pressure, flow, and H2S/CO2/water cut — and benchmark current treatment performance.
2
Chemistry Selection
Match scale and corrosion inhibitors, biocides, or demulsifiers to the operating envelope, factoring compatibility, regulatory constraints, and downstream impacts.
3
Field Trial & Dosing
Determine treat rates through bottle and field trials, and configure continuous or batch delivery and packaging (drums, totes, ISO tanks) to logistics.
4
Monitoring & Adjustment
Track corrosion coupon/ER rates, residual inhibitor, and separator and water-quality performance, adjusting chemistry and dose as wells change.
Recommended Chemistries (8)
Alkyl Pyridine
CAS 68391-11-7
Specialty Additives
Corrosion Inhibition
Nitrogen-base film former used in multiphase/sour pipeline inhibitor packages
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Sodium Molybdate
CAS 7631-95-0
Specialty Additives
Corrosion Inhibition
Anodic inhibitor that strengthens the passive film in water-wetted lines
Physical Description: White solid; Colorless crystalline solid   Melting Point: 687 °C   Solubility: Solubility in water, g/100ml at 100 °C: 84
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Dodecylamine
CAS 124-22-1
Amines & Amides
Crosslinking / Curing
2735 (DODECANAMINE) · Class
Fatty primary amine that forms a persistent hydrophobic film on the internal carbon-steel wall of wet-gas/multiphase lines, the film-forming-amine chemistry the design calls for
Melting Point: 28.3 °C   Boiling Point: 259 °C   Density: 0.8015 g/cu cm @ 20 °C/4 °C
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Oilfield Imidazoline Corrosion Inhibitor (Amphoteric)
CAS 68630-96-6
Esters
Emolliency
Amphoteric imidazoline active of the standard internal-pipeline CO2 inhibitor class; chemisorbs on steel and water-wets-to-oil-wets the surface to block carbonic-acid attack
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Diglycolamine (DGA)
CAS 929-06-6
Glycols & Polyols
Film Formation
3055 (2-(2-AMINOETHOXY)ETHANOL) · Class
Film-forming amine whose amino group adsorbs on the internal carbon-steel pipe wall, building a hydrophobic film that suppresses CO2/carbonic-acid attack in wet-gas/multiphase lines
Melting Point: FP: -12.5 °C   Boiling Point: 221 °C   Density: 1.0572 @ 20 °C/20 °C
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Diethylenetriamine
CAS 111-40-0
Amines & Amides
Crosslinking / Curing
2079 (DIETHYLENETRIAMINE) · Class
Imidazoline precursor — reacted with a fatty acid it gives the internal-pipeline imidazoline inhibitor
Melting Point: -39 °C   Boiling Point: 207 °C at 760 mmHg   Density: 0.954 at 20 °C
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Triethylenetetramine
CAS 112-24-3
Amines & Amides
Crosslinking / Curing
2259 (TRIETHYLENETETRAMINE) · Class
Higher ethyleneamine for longer-tail amido-amine/imidazoline pipeline inhibitors that chemisorb on the carbon-steel wall
Melting Point: 12 °C   Boiling Point: 266–267 °C at 760 mmHg   Density: 0.982 at 20 °C
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Ethyleneamines E-100
CAS 107-15-3
Amines & Amides
Crosslinking / Curing
1604 (ETHYLENEDIAMINE) · Class
Ethyleneamine blend used to manufacture imidazoline film-forming inhibitors for internal carbon-steel pipeline corrosion
Melting Point: 8 °C   Boiling Point: 116 °C at 760 mmHg   Density: 0.898 at 25 °C
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