In petroleum extraction, gathering & transportation, refining, and oilfield water treatment, the high viscosity of crude oil, emulsion stability, and stubborn foaming have always been the "triple shackles" constraining pump efficiency, heat exchange efficiency, separator throughput, and operational stability. Heavy crude oil faces high flow resistance in wellbores and pipelines, keeping energy consumption high; produced fluids, after acting with oil recovery aids, acidizing/fracturing fluids, and chemical flooding agents, easily form stable emulsions, dramatically increasing the load on oil-water separation equipment; meanwhile, the combined action of emulsifiers and gas flow induces stubborn foam in separators, buffer tanks, and desulfurization towers, leading to false liquid levels, gas entrainment, and even runaway or shutdown. Traditional hydrocarbon defoamers and viscosity reducers often "attend to one while losing the other" — hydrocarbon defoamers disperse acceptably in oil phases but spread poorly in water-containing produced fluids; conventional water-based defoamers can break foam but have poor compatibility with alkanes, unable to intervene in crude oil bulk for viscosity reduction. With the rising proportion of heavy and ultra-heavy crude extraction and intensifying pressure for "quality and efficiency improvement" in oilfields, sourcing a multifunctional oilfield additive with "modified polydimethylsiloxane, low surface tension, miscible with alkanes and macromolecular liquids, well-dispersed in aqueous systems, one-agent-with-triple-effects of viscosity reduction/oil-water separation/defoaming" has become the core gap for domestic oilfield chemical autonomy. Addressing this, Anhui IOTA Silicone Oil Co., Ltd. officially launches IOTA 23071 Oilfield Auxiliary Additive (Chemical Composition: Modified Polydimethylsiloxane). Characterized by "light amber transparent liquid; viscosity (25℃) 25-80cSt; density (20℃) 1.00-1.05g/cm³; surface tension (25℃) <25mN/m; 25kg plastic drum or customized per customer request; sealed storage in cool dry place", backed by "modified PDMS active skeleton + <25mN/m ultra-low surface tension + 25-80cSt engineering viscosity + oil-water amphiphilic dispersion", it serves as the "key to oilfield fluids" for crude oil viscosity reduction, oil-water separation, and defoaming, achieving the leap from "single-function defoaming or single viscosity reduction" to "one-agent multi-effect, oil-water co-governance". Molecular Architecture: Modified PDMS + Ultra-Low Surface Tension + Oil-Water Amphiphilicity

• Modified PDMS Active Skeleton: With Si-O-Si inorganic backbone as main chain and methyl as organic substituent, the Si-O bond energy reaches approximately 451kJ/mol, granting the molecular chain excellent thermal stability and weather resistance. Through substitution modification of partial methyl groups, the functional boundary of pure PDMS is expanded, enabling it to retain PDMS's low surface tension and chemical inertness while acquiring "dual affinity" for both oil and aqueous phases.
• <25mN/m Ultra-Low Surface Tension: Pure PDMS has a surface tension of approximately 20-21mN/m, far below water (~72mN/m) and common foaming liquids (30-50mN/m). After modification, IOTA 23071 maintains a surface tension of <25mN/m — this is the "physical-chemical spear" for its defoaming, demulsification, and viscosity reduction: low-surface-tension droplets spontaneously spread on high-surface-tension liquid films (positive Spreading Coefficient), tearing foam lamellae, disturbing emulsion interfaces, and weakening intermolecular forces within crude oil.
• Oil-Water Amphiphilic Dispersion: Easily miscible with alkane oily substances and macromolecular liquid materials, reducing their viscosity; also possesses good dispersion stability in aqueous systems and is easy to disperse in water. This "oil-phase soluble, water-phase dispersible" amphiphilicity is absent in single PDMS (which is difficult to emulsify and prone to oil floating) — the modified 23071 can rapidly migrate to oil-water interfaces in complex "oil-in-water/water-in-oil" produced fluid systems, exerting synergistic demulsification and defoaming effects.

Performance Leap: From "Single-Point Foam Breaking" to "Viscosity Reduction - Demulsification - Defoaming Trinity"

• Crude Oil Viscosity Reduction: Recommended dosage is only 0.05-0.5% of total formulation, miscible with alkane oily substances and macromolecular liquid materials to reduce viscosity, improving crude oil fluidity and reducing wellbore lifting and pipeline transportation energy consumption.
• Accelerated Oil-Water Separation: Recommended dosage 0.3-1%; low-surface-tension active components rapidly spread to oil-water interfaces, disturbing surfactant-stabilized liquid films, destroying emulsion stability, dramatically shortening separator residence time and improving throughput.
• Defoaming Efficiency Leap: Recommended dosage 0.3-1%; suppresses foaming of corresponding emulsifiers and accelerates gas-liquid separation — the defoaming mechanism follows the classic path of silicone defoamers: low-surface-tension droplets spontaneously spread on foam lamellae, carrying away surfactant molecules, triggering Marangoni effect failure, causing the lamellae to lose self-repair capability and rupture.
• Multi-Function Reuse: The same agent can be applied to crude oil viscosity reduction, oil-water separation, defoaming, and defoaming/viscosity-reduction technologies for other oilfield auxiliary products, simplifying oilfield chemical formulation systems and reducing warehousing and dosing complexity.
• Process Friendly: The moderate viscosity of 25-80cSt and density of 1.00-1.05g/cm³ make it easy for metering pumps and pipeline mixing; light amber transparent liquid introduces no visible impurities.

Application Penetration: From Heavy Oil Wellbores to Oilfield Water Treatment

• Heavy/Ultra-Heavy Crude Extraction (Main Battlefield): Adding 0.05-0.5% at wellbore, surface pipelines, and heat exchanger inlets reduces crude oil viscosity, improves fluidity, and lowers gathering/transportation energy consumption.
• Produced Fluid Oil-Water Separation: Adding 0.3-1% in three-phase separators, free water knock-out (FWKO) vessels, and electrostatic coalescers accelerates demulsification and oil-water interface layering, improving separator throughput.
• Oilfield Defoaming: Adding 0.3-1% at foam-prone nodes such as separators, buffer tanks, desulfurization towers, and ammonia stripping columns suppresses emulsifier foaming, rapidly breaks foam, and eliminates false liquid levels and gas entrainment.
• Oilfield Water Treatment: Serving as defoaming and oil-water separation aid in sewage treatment and reinjection water systems, improving flocculation and dissolved air flotation efficiency.
• Other Oilfield Additive Compounding: As a defoaming/viscosity-reduction functional component compounded into other oilfield additive products to enhance their comprehensive performance.

IOTA Technical Guide: Cool Seal, Metered Per Demand

• Application: Oil defoaming recommended 0.3-1%; crude oil viscosity reduction recommended 0.05-0.5%; oil-water separation recommended 0.3-1%; specific dosage determined by gradient testing per crude oil properties, emulsification degree, and foaming severity — contact IOTA technical service for formulation support.
• ⚠️ Taboo: Store sealed in cool dry place; avoid long-term coexistence with strong oxidants and strong acids/bases; select dosing points at pipe sections with sufficient turbulence to ensure uniform dispersion.
• Storage: 25kg plastic drum packaging, or customized per customer request; sealed storage in cool dry place.
• Handling: Light amber transparent liquid, viscosity 25-80cSt; pilot testing is recommended before dosing to determine optimal dosage and dosing point, avoiding reverse effects from overdosing.

Industry Insight: The ultimate direction of oilfield chemicals is "one-agent multi-effect, oil-water co-governance" — modified polydimethylsiloxane, leveraging ultra-low surface tension and oil-water amphiphilicity, can simultaneously intervene in three physicochemical processes: viscosity reduction, demulsification, and defoaming, making it an ideal active skeleton for heavy oil extraction and produced fluid treatment. IOTA 23071, with "modified PDMS + <25mN/m + 25-80cSt + 0.05-0.5% viscosity reduction/0.3-1% defoaming separation + 25kg plastic drum" hard metrics, fills the key supply chain link for domestic multifunctional oilfield additives in heavy oil viscosity reduction, produced fluid oil-water separation, and oilfield defoaming, providing a mass-producible import-substitution solution for downstream oilfield service companies and refineries. This confirms domestic oilfield silicone additives are leaping toward "modified PDMS one-agent multi-effect", with growing technical say in oilfield chemicals.