Chemicals for the Oil & Gas Industry
The oil and gas sector demands specialty chemicals for drilling fluid formulation, well stimulation, pipeline treatment, and refinery operations. MITCHEM supplies API-grade barium sulphate as a drilling mud weighting agent, hydrochloric and citric acid for well stimulation and iron control, caustic soda for refinery neutralisation, and ferric chloride for H₂S scavenging — with full technical data sheets and export documentation for global operations.
Key Products12+
ApplicationsDrilling, Stimulation, Refining
StandardsAPI / NACE Compliant
SupplyBags & Bulk
Key Products for Oil & Gas
Click any product for full specifications, available grades, and quote form.
Barium Sulphate (API Barite)
CAS: 7727-43-7 | HS: 28332700
BaSO₄ | 233.39 g/mol
API-grade barite weighting agent in drilling fluids — increases mud density to control formation pressure and prevent blowouts. Chemically inert, high specific gravity (SG 4.2+), and non-corrosive to the drill string.
Hydrochloric Acid
CAS: 7647-01-0 | HS: 28061000
HCl | 36.46 g/mol
Primary stimulation acid for carbonate reservoirs (limestone, dolomite) — dissolves calcium carbonate to create wormholes that improve well connectivity and production rates in matrix acidising jobs.
Caustic Soda Lye (NaOH Solution)
CAS: 1310-73-2 | HS: 28151200
NaOH (aq) | 40.00 g/mol
Drilling fluid pH control agent and refinery neutraliser — maintains alkaline pH in water-based muds to inhibit corrosion and suppress H₂S. Also neutralises acidic crude streams in atmospheric distillation units.
Citric Acid
CAS: 77-92-9 | HS: 29181400
C₆H₈O₇ | 192.12 g/mol
Iron control agent in acidising treatments — chelates ferric iron liberated during acid dissolution of iron-rich formations, preventing Fe(OH)₃ precipitation that would plug the reservoir and impair well productivity.
Ferric Chloride
CAS: 7705-08-0 | HS: 28273100
FeCl₃ | 162.20 g/mol
H₂S scavenger in produced water treatment — reacts with hydrogen sulphide to form insoluble iron sulphide precipitates, reducing corrosion rates and gas toxicity hazards in production and processing facilities.
Paraffin Wax
CAS: 8002-74-2 | HS: 27122000
CₙH₂ₙ₊₂ | Variable
Reference material and additive in wax deposition studies and pipeline management programmes. Used to calibrate pigging schedules and optimise chemical injection for wax inhibition in subsea and onshore pipelines.
Sulphuric Acid
CAS: 7664-93-9 | HS: 28070010
H₂SO₄ | 98.07 g/mol
Alkylation unit catalyst regeneration aid in petroleum refining and reagent for produced water pH adjustment — also used in mineral scale dissolving during injection well workover operations.
Strontium Sulphate
CAS: 7759-02-6 | HS: 28332990
SrSO₄ | 183.68 g/mol
Weighting agent and scale inhibitor in drilling fluids — naturally occurring celestite (SrSO₄) used to increase mud density in high-pressure formations. Also relevant to strontium scale management in produced water handling.
Calcium Chloride
CAS: 10043-52-4 | HS: 28272000
CaCl₂ | 110.98 g/mol
Completion and workover brine — provides high-density clear brine (up to 1.40 SG) without solids, preventing formation damage in well completions. Also used for hydrate inhibition in subsea pipelines and gas transmission.
Caustic Soda Prills
CAS: 1310-73-2 | HS: 28151100
NaOH | 40.00 g/mol
Caustic washing agent in natural gas sweetening and petroleum refinery operations — removes H₂S and CO₂ from gas streams and neutralises acidic crude fractions. Prills form preferred for safe handling and accurate dosing in automated systems.
Compressed Hydrogen
CAS: 1333-74-0 | HS: 28041000
H₂ | 2.02 g/mol
Hydroprocessing and hydrotreating reagent in petroleum refining — reacts with sulphur, nitrogen, and oxygen compounds in crude fractions to produce ultra-low-sulphur diesel and naphtha. Also used for metal annealing in refinery maintenance operations.
Potassium Chloride
CAS: 7447-40-7 | HS: 28271000
KCl | 74.55 g/mol
Shale-inhibiting completion and water-based drilling fluid additive — prevents hydration and swelling of smectite and illite clay minerals by potassium ion exchange, stabilising wellbore integrity in water-sensitive shale formations.
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