Oilfield Chemical Additive Supplier

No. CheMost supplies the oilfield chemistry that overlaps its lubricant range — EP / lubricity additives for drilling fluids, corrosion inhibitors, demulsifiers and rust inhibitors. Scale inhibitors, H₂S and oxygen scavengers, biocides and the full continuous-injection production-chemical program are formation-specific products that should be selected from a water-chemistry analysis by a specialist production-chemical service company. We describe them on this page (in the process-stage matrix and below) as background so you can see where our components fit in the wider program — but we focus on what we can manufacture, document and supply, and we say so clearly rather than overstate our scope.

In oil-based muds, EP additives work through the same mechanism as in gear and cutting lubricants: at the asperity contacts between drill string and wellbore wall, contact temperatures exceed the EP chemistry’s decomposition threshold, releasing reactive sulfur or phosphorus that forms low-shear-strength iron-sulfide or iron-phosphate films. These prevent metal-to-metal seizure and reduce the coefficient of friction along the string. A well-designed OBM with EP at 1–2% typically shows a coefficient of 0.08–0.15 on an OFITE or Fann tester, versus 0.30–0.45 untreated — a major reduction in torque and drag for extended-reach (ERD) wells where string friction limits horizontal reach. High-active-sulfur grades give the most aggressive EP; copper-safe grades (ASTM D130 1a) are preferred where brass surface connections require non-corrosive chemistry.

They solve different problems by different mechanisms. A corrosion inhibitor protects the steel surface by forming an adsorbed film that slows the electrochemical corrosion rate — typically an amine or imidazoline that films onto steel in the water phase at 10–50 ppm. A scale inhibitor works in the bulk water to prevent mineral crystallisation — it adsorbs onto crystal nuclei and disrupts growth, keeping calcium carbonate, barium or strontium sulfate in solution above the supersaturation that would otherwise precipitate. Both are needed in production: the corrosion inhibitor manages electrochemical attack on the steel, the scale inhibitor manages mineral deposition in the near-wellbore and equipment. CheMost’s corrosion-inhibitor and metal-deactivator range covers the corrosion function; scale inhibitors are formation-specific products selected from your water analysis by a specialist house.

Crude emulsions are stabilised by asphaltenes, resins and naphthenic acids that adsorb at the oil-water interface and form a mechanically resistant film. Demulsifiers are surface-active polymers (typically ethylene-oxide / propylene-oxide block copolymers or resin-EO-PO types) with high interfacial activity — they displace the natural stabilisers faster than the stabilisers can re-adsorb. Once the film is disrupted, oil droplets coalesce and separate by gravity in the heater-treater or electrostatic treater. Performance is highly crude-specific because the stabiliser composition varies by field, so bottle-test screening in your actual crude (with your produced water at your separator temperature) is the required first step; the field treat rate is calibrated from the bottle-test optimum. Send your crude source, BS&W target and separator temperature for a screening discussion.

Every commercial shipment is supported by a TDS (chemical identification, physical properties, available performance data); a GHS SDS (handling, transport classification, regulatory compliance); a per-batch COA; and a Certificate of Origin for customs. For dangerous goods under IMDG (sea) or IATA (air), transport documentation is prepared. For EP additives the TDS includes ASTM D130 copper-corrosion and active-sulfur data. Substance identity and CAS information for import regulatory purposes can be requested during evaluation. We do not produce ISO 9001 certificates or CICS registration documents.

Standard components used in oilfield applications (EP additives, corrosion inhibitors, rust inhibitors, demulsifiers) ship within 7–14 business days of order confirmation at a 200 kg (one drum) MOQ. Specialty grades with lower production frequency may require IBC (1,000 kg) minimums or longer lead times, confirmed during quotation. Free 1–5 kg trial samples for laboratory or field evaluation are available for qualified buyers. Contact sales with the product, quantity and destination port for a specific lead-time and pricing confirmation.