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A field engineer once asked me: “This demulsifier works perfectly on our heavy crude in Latin America. Why would it struggle at a facility in the Middle East?” Because crude is not a product. It is a fingerprint — and…
It passed the bottle test. It passed the dose-response curve. Then it hit the field — and the water didn’t drop. If that sounds familiar, you’re not alone. In my line of work, “it worked in the lab” is one…
It’s late afternoon at a separator. BS&W is creeping up. The operator’s first instinct — raise the demulsifier pump stroke. More chemical, faster separation. Right? Wrong. More often than not, that instinct makes the emulsion stronger. The curve nobody drew…
The corrosion coupon came back. Weight loss: 0.5 mil per year. Well within spec. Inhibitor program signed off. Six months later, an ultrasonic inspection found a pit — 6 mm deep — on a section of pipe the coupon never…
Demulsifiers are surfactants that break down emulsions. They primarily disrupt emulsions by partially replacing the stabilizing film. As dehydrating agents, they remove water from crude oil and heavy oil, achieving the required water content. In oil wells, they reduce crude…
Technical Field This invention pertains to oilfield chemicals, and in particular relates to a method for preparing a fatty amine polyester ether surfactant and its composite ionic oil displacement agent. Background Technology Ternary composite flooding systems ( polymer + surfactant…
Polyacrylamide (HPAM) is a high-molecular-weight polymer obtained by homopolymerization of acrylamide or copolymerization of acrylamide with other monomers containing double bonds. The amide and carboxyl groups in the polymer units enable the polymer to readily form hydrogen bonds in water,…
Shaanxi Rixin Environmental Protection Technology Co., Ltd. proudly participated in the Abu Dhabi International Petroleum Exhibition (ADIPEC 2025), one of the world’s most influential events for the oil and gas industry. During the exhibition, our team actively communicated with numerous…
From November 3 to 6, 2025, the Abu Dhabi International Petroleum Exhibition & Conference (ADIPEC) gathered global energy leaders, innovators, and solution providers. As one of the Top 10 Outstanding Enterprises, Shaanxi Rixin Environmental Protection Technology Co., Ltd. proudly presented…
Methyl cellulose (MC) is an important non-ionic cellulose ether, and its production process covers multiple steps from raw material selection to final product formation. The following will elaborate on its production process from the aspects of process flow, key reactions,…