Oilfield chemicals

Demulsifier

In the context of the oil and gas industry, demulsifiers are commonly used to separate water(salts) from Crude oil&Production Fluid .Demulsifiers work by adsorbing onto the water-oil interface and destabilizing the emulsion. They can alter the interfacial tension between the oil and water phases, reduce the surface charge, or modify the emulsion droplet size, thereby promoting the coalescence of water droplets( the salts in the oil are also dissolved in the water droplets) and facilitating their separation.The types of Demulsifiers based on their chemical composition and mode of action. Common types include surfactant-based demulsifiers, polymeric demulsifiers, and natural demulsifiers derived from plants or microorganisms.

Crude oil&Production Fluid Treatment

Defoamer

Defoamer( antifoaming agent), is used to reduce or eliminate foam in industrial processes or products. They typically consist of surface-active agents, oils, waxes, or silicones that have low surface tension and can spread across the foam surface, rupturing the bubbles and releasing the trapped air.

Production Fluid&Water Treatment/

Reverse Demulsifier

Surfactant-based Reverse Demulsifiers: Surfactants are often used as demulsifiers due to their ability to reduce surface tension and destabilize the emulsion. They can adsorb at the oil-water interface, modify interfacial properties, and promote the coalescence of oil droplets. Polymer-based Reverse Demulsifiers: Polymers can be used as demulsifiers to destabilize oil-in-water emulsions. These polymers can help in bridging oil droplets, forming aggregates, and facilitating their separation from the water phase.

Corrosion Inhibitor

Passivating Inhibitors: Passivating inhibitors form a protective layer on the metal surface, which acts as a barrier between the metal and the corrosive environment. Examples of passivating inhibitors include compounds containing chromates, phosphates, or molybdates. Anodic Inhibitors: Anodic inhibitors work by altering the electrochemical reactions at the anodic sites on the metal surface, slowing down the corrosion process. They typically act by forming insoluble precipitates or complexes on the metal surface. Examples include compounds containing zinc, nickel, or cobalt. Cathodic Inhibitors: Cathodic inhibitors work by reducing the oxygen concentration or slowing down the cathodic reaction, thereby inhibiting corrosion. They can include compounds such as oxygen scavengers or compounds containing amines.

Sclae Inhibitor

The specific ingredients used in scale inhibitors can vary depending on the target scale types, and the application. common types of ingredients in scale inhibitors:Phosphonates,Polymeric Dispersants,Organophosphates,Polyphosphates,Acrylic Polymers,Zinc Salts

H2S Scavenger

Types of ingredients found in H2S scavengers:Aldehydes, such as formaldehyde or paraformaldehyde,ethanolamine (MEA), diethanolamine (DEA), or triethanolamine (TEA),iron(III) oxide or iron salts (e.g., iron chloride),zinc oxide or zinc carbonate,Triazines, Thiophenes.

Desulphurization Agent

common types of ingredients in desulfurization agents:Metal oxides, such as zinc oxide (ZnO), copper oxide (CuO), or iron oxide (Fe2O3), Organic compounds, such as alkyl and aryl amines,Metal hydroxides, such as sodium hydroxide (NaOH) or calcium hydroxide (Ca(OH)2),Catalysts, such as transition metal-based compounds or zeolites, Ionic liquids, which are liquid salts composed of organic cations and inorganic anions,

Wax Dispersant

common types of ingredients in wax dispersants:Polymeric surfactants, such as copolymers or block copolymers, Non-ionic surfactants, such as alkyl ethoxylates or alkylphenol ethoxylates,Solvents, such as aromatic hydrocarbons or alcohols,co-solvents, emulsifiers, or other surface-active agents,polymeric dispersants WITH specific molecular structures designed

Asphaltene Dissolving Agent

ingredients in Asphaltene Dissolving Agent:Aromatic solvents, such as toluene, xylene, or benzene,Alkylbenzenes, such as ethylbenzene or propylbenzene,Polar organic compounds, such as alcohols or ketones, non-ionic, anionic, or cationic surfactants with appropriate HLB,Polymeric dispersants or surface-active polymers,Modifiers and Additives,such as viscosity modifiers, antioxidants, or other chemical components that enhance the effectiveness and stability of the formulation.

Paraffin remover

ingredients in Paraffin remover :aromatic hydrocarbons (e.g., toluene, xylene), aliphatic hydrocarbons (e.g., mineral spirits, kerosene), or organic esters (e.g., ethyl acetate),Surfactants such as non-ionic, anionic, or cationic, Chelating Agents,citric acid or acetic acid.

water Clarifier(Flocculant&Coagulant)

ingredients in water Clarifier:Inorganic coagulants, such as aluminum sulfate (alum), ferric chloride, or polyaluminum chloride (PAC),Organic coagulants, such as cationic polymers or organic salts,polyacrylamides (PAM), polyethylene oxides (PE)

Biocide

ingredients in Biocide:Glutaraldehyde ,Organic acids, such as formic acid, acetic acid, or citric acid, silver ions, copper ions, or zinc pyrithione. hydrogen peroxide or peracetic acid, methylisothiazolinone (MIT) or benzisothiazolinone (BIT),sodium hypochlorite (bleach), chlorine dioxide, or trichloroisocyanuric acid (TCCA),.

Oxygen Svavenger

ingredients in Oxygen Scavengers:Sodium Sulfite (Na2SO3),Hydrazine, Ascorbic acid,Sodium Bisulfite (NaHSO3),potassium metabisulfite (K2S2O5) or calcium bisulfite (Ca(HSO3)2).glucose oxidase.

Coagulant

Inorganic coagulants, such as aluminum sulfate (alum), ferric chloride, or polyaluminum chloride (PAC),Organic coagulants, such as cationic polymers or organic salts

Drilling fluid filter aid

ingredients in Drilling fluid filter aid:carboxymethyl cellulose (CMC) or hydroxyethyl cellulose (HEC) , polyacrylamide (PAM) and polyethylene oxide (PEO), amorphous silica or silica gel,Lignite,Bentonite ,Starch,Calcium carbonate,

Filter aid for oily sewage treatment

Polymers, both synthetic and natural,These polymers can assist in coagulation and flocculation, aiding in the removal of oil and suspended solids during filtration.

Flocculant

organic salts,polyacrylamides (PAM), polyethylene oxides (PE)

Floatation Agent

ingredients in Floatation Agent:alkyl sulfates, alkyl sulfonates, alkyl amines, or fatty acids.xanthates, dithiophosphates, thionocarbamates, or fatty amines. pine oil, alcohols, glycols, or polyglycols.Modifiers can include acids (e.g., sulfuric acid), bases (e.g., lime or sodium hydroxide), or other chemicals such as dispersants or depressants.

Drag Reducer Agent

ingredients in Drag Reducer Agent:polyethylene or polypropylene,copolymers of ethylene and propylene (EP copolymers) or ethylene and butene (EB copolymers),Surfactants, hydrocarbon-based solvents, alcohols, or glycols.

Viscosity Reducer

ingredients in Viscosity Reducer for crude oil: polyethylene, polypropylene, ethylene-vinyl acetate (EVA), or polyisobutylene (PIB).Dispersants,hydrocarbon-based solvents, alcohols, or glycols.Surfactants ,additives such as antifoaming agents, corrosion inhibitors, or stabilizers.

Chemical Tracers

ingredients in Chemical Tracers:1. Radioactive isotopes (such as tritium water, tritiated ethanol); 2. Easily detectable inorganic anions (such as NO-3, CNS-, Br-, I-); 3. Dyes (such as sodium fluorescein); 4. Low molecular weight alcohols (such as methanol, ethanol).

Different Acids

Hydrochloric acid, hydrofluoric acid, citric acid, polyhydric acid, tartaric acid etc.

Iron Stabilizer(Iron ion stabilizer)

Main components of Iron ion stabilizer:ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), or diethylenetriaminepentaacetic acid (DTPA),citric acid or gluconic acid, sodium hexametaphosphate (SHMP) or sodium tripolyphosphate (STPP),amino-tris(methylenephosphonic acid) (ATMP) or ethylenediaminetetramethylenephosphonic acid (EDTMP),Certain polyamines, such as polyethyleneimine (PEI) or polyallylamine (PAA),polyacrylic acid (PAA) or polyaspartic acid (PASA),

Clay Stabilizer

Main components of Clay Stabilizer:Polyamines: Polyamines, such as polyethyleneimine (PEI) or polypropyleneimine (PPI), guar gum, xanthan gum, or cellulose derivatives, sodium silicate or potassium silicate,citric acid, acetic acid, or lignosulfonates,benzalkonium chloride or dodecylbenzenesulfonic acid,sodium polyacrylate or polyacrylic acid,amino-tris(methylenephosphonic acid) (ATMP) or ethylenediaminetetramethylenephosphonic acid (EDTMP),

Diverting Agent

Main components of Fracturing diverter：granular materials or fibers, polymers & cross-linking agents， foaming agents or introducing gas，viscoelastic surfactants, cross-linkers, or specific chemical treatments tailored to the reservoir conditions.Viscosity modifiers.