Product Details

Crude Oil Demulsifier

1. Product Overview

Crude Oil Demulsifier is a high-efficiency chemical additive designed for oilfield dehydration and treatment. It breaks crude oil-water emulsions, reduces interfacial tension, and enables rapid phase separation. By destabilizing emulsions and promoting water droplet coalescence, it effectively lowers crude oil water content, improves fluidity, and ensures stable pipeline transportation and storage.

2. Appearance & Physical Properties

3. Core Technical Parameters

4. Core Functions

4.1 Efficient Oil-Water Separation

By altering surface properties and reducing interfacial tension, the demulsifier destabilizes emulsions, allowing water droplets to coalesce and settle, achieving rapid oil-water separation.

4.2 Crude Oil Dehydration & Flowability Improvement

It reduces water content in crude oil to meet pipeline transportation requirements. It also lowers viscosity, improves flowability, and reduces energy consumption during transportation.

4.3 Adaptable to Various Crude Types

Suitable for light, medium, heavy, and polymer-containing crude oils, with excellent dehydration performance across different oil properties.

5. Product Application

· Dehydration treatment of crude oil in oilfield gathering and processing systems

· Breaking emulsified oil-water mixtures to reduce water content for pipeline transportation

· Improving crude oil flowability to lower transportation energy consumption

· Used in refinery and storage tank dehydration processes

· Applicable to both natural and artificially prepared crude emulsions

6. Product Advantages / 产品优势

✅ Excellent Oil-Water Separation EffectHigh dehydration rate and clear aqueous phase after treatment.

✅ Improved Crude Oil FlowabilityReduces viscosity and resistance, lowering transportation energy consumption.

✅ Cost Reduction & Efficiency ImprovementReduces processing energy costs and improves overall production efficiency.

✅ Increased Storage CapacityLower water content effectively increases the effective storage volume of tanks.

✅ Fast & Stable ActionQuick response with consistent dehydration performance under different conditions.

✅ High Adaptability & Easy to UseWorks well with various crude types, simple to add and operate.

7. Packaging Specification

· Standard: 1000kg IBC tanks, 200kg drums, or 25kg plastic drums.

· Customizable packaging is available according to client specifications.

· Handle with care during transportation; avoid impact and inversion.

8. Storage & Transportation

Store in a dry, cool, and ventilated warehouse. Keep away from fire and heat sources to maintain product quality and safety.

9. Disclaimer & Technical Support

All specifications and descriptions herein are for reference only. Please select and use the product according to actual crude oil properties and working conditions. Customized solutions and technical support are available on request.

Application Cases of Emulsifiers for Drilling Fluids

1. High-temperature Emulsion Stabilization and Demulsification Prevention Case for Deep Well Oil-based Drilling Fluids

Case Background: Deep and ultra-deep well formations feature ultra-high bottom hole temperature and severe downhole shearing. Conventional emulsifiers have weak high-temperature resistance, prone to molecular failure and emulsion film rupture under long-term high-temperature aging and strong mechanical shearing. The oil-based drilling fluid is easy to demulsify, with sharply reduced electric stability, abnormal rheological parameters and failed suspension and carrying capacity, resulting in downhole sand settlement, wellbore instability and increased complex drilling risks.

Application Formula & Dosage: In high-temperature and high-density oil-based drilling fluid systems, 2.5%–3.5% high-temperature resistant composite emulsifier (main emulsifier + auxiliary emulsifier) is added. Relying on multi-active group molecular structure, it forms a high-strength dense emulsion interface film to achieve long-term stable emulsification under ultra-high temperature conditions.

Application Effect: The high-temperature resistant emulsifier has excellent thermal stability, which can maintain complete emulsion structure and high electric stability after long-term aging at 220–240℃. It effectively solves the problems of high-temperature demulsification, system thickening and solid settlement of oil-based drilling fluids. The drilling fluid has stable rheological and filtration performance, good suspension and sand-carrying capacity, effectively ensures long-cycle safe and stable drilling of ultra-deep high-temperature wells, and reduces downhole complex accidents caused by emulsion failure.

2. Constant-rheology Emulsion Stabilization Case for Offshore Ultra-deep Water Drilling Fluids

Case Background: Offshore ultra-deep water wells have prominent temperature and pressure differences, low seabed temperature and large downhole pressure fluctuation. Conventional oil-based drilling fluids are prone to emulsion instability and rheological fluctuation under variable temperature and pressure conditions, resulting in excessive low-temperature viscosity, difficult pump starting, poor wellbore cleaning effect and increased risk of pipe sticking, which cannot meet the precise control requirements of ultra-deep water high-precision drilling.

Application Method & Dosage: A constant-rheology special emulsifier is added at a dosage of 2.0%–3.0% to the offshore synthetic-based/oil-based drilling fluid system. It can regulate the interface film flexibility, balance the system rheology under alternating cold and hot conditions, and realize constant-rheology stable emulsification.

Application Effect: The dedicated emulsifier adapts to ultra-deep water variable temperature and pressure environments, which can always maintain uniform and stable emulsion particle size, effectively inhibit low-temperature thickening and high-temperature thinning of drilling fluid. The system has stable shear force and filtration performance, excellent wellbore cleaning and suspension capacity, solves the problem of difficult performance control of ultra-deep water drilling fluids, ensures smooth pumping and safe tripping, and improves the overall drilling efficiency of offshore ultra-deep water wells.

3. Strong Emulsification and Anti-collapse Case for Shale Oil Horizontal Well Oil-based Drilling Fluids

Case Background: Shale oil horizontal wells have long open-hole sections, fragile shale formations, strong hydration tendency and long-term drilling fluid soaking. Conventional emulsifiers have weak interface film strength, and the drilling fluid is prone to partial demulsification during long-cycle circulation. This leads to reduced mud cake quality, poor plugging and anti-collapse performance, easy wellbore spalling and hole enlargement, and restricts the safe extension of long horizontal sections.

Application Dosage: 2.2%–3.2% high-strength composite emulsifier is added to the shale oil horizontal well oil-based drilling fluid system. By strengthening the interfacial emulsion film structure, it improves the overall stability and wall protection performance of the drilling fluid.

Application Effect: The composite emulsifier forms a tough and wear-resistant integrated emulsion film at the oil-water interface, which effectively improves the overall stability and anti-shear performance of the drilling fluid, avoids partial demulsification during long-term circulation. It optimizes mud cake density and tightness, significantly enhances formation plugging and anti-collapse effect, reduces wellbore enlargement rate and shale spalling risks, stabilizes long horizontal wellbore morphology, and ensures safe and efficient directional drilling and footage extension.

4.  Emulsion Stabilization and Performance Improvement Case for High-density Soil-free Oil-based Drilling Fluids

Case Background: High-density soil-free oil-based drilling fluids have no organic soil support, relying entirely on emulsifier systems to maintain emulsion stability and rheological balance. Conventional single emulsifiers have insufficient emulsifying capacity, unstable system suspension, easy solid settlement and rheological disorder under high-density and high-pressure conditions, resulting in poor on-site construction adaptability and difficult performance regulation.

Application Method & Effect: The compound dosage of main and auxiliary emulsifiers is 2.8%–3.8%. The dual synergistic emulsification system can significantly improve the emulsion strength and structural stability of the soil-free drilling fluid, effectively solve the problems of solid settlement and poor shear resistance of high-density systems. The drilling fluid has stable viscosity and shear force, excellent filtration control performance, uniform system performance, and fully meets the high-precision performance requirements of high-density soil-free drilling fluid for deep well drilling.

5.  Low-damage Emulsified Drilling Fluid Logging Adaptation and Reservoir Protection Case

Case Background: Low-permeability tight reservoirs and logging evaluation wells have strict requirements on drilling fluid fluorescence, reservoir damage and logging adaptability. Conventional emulsifiers have high fluorescence and residual oil pollution, which easily block reservoir pore throats, reduce permeability recovery rate, and interfere with logging curve identification and reservoir interpretation accuracy, affecting fine reservoir evaluation.

Application Method & Effect: The dosage of low-fluorescence low-damage special emulsifier is 1.8%–2.5%. The product has zero fluorescence, low residue and strong emulsifying and stabilizing ability. It can form a stable and uniform emulsion system to ensure excellent drilling fluid performance. It will not cause oil phase residue and pore throat blockage in the reservoir, has low damage to low-permeability reservoirs, does not interfere with logging and testing operations, and realizes high-quality drilling and low-damage reservoir protection of evaluation wells.