Lignosulfonate

Product Introduction:

It usually exists in the form of brownish powder or viscous liquid, and is essentially an anionic surfactant. Its core characteristics lie in its excellent dispersibility and certain temperature resistance and salt tolerance, which enable it to perform well in various demanding downhole environments. In drilling fluids, it primarily functions as a diluent and a fluid loss reducer, reducing the viscosity and controlling the fluid loss of the mud by adsorbing onto the surface of clay particles, ensuring the smooth progress of drilling operations. In the field of enhanced oil recovery, after chemical modification (such as sulfonation), it can be used as an oil displacement surfactant, reducing the interfacial tension between oil and water to displace the residual oil in the formation. Additionally, it can be used as a dispersant for cement in well cementing and an environmentally friendly oil-water separation material.

Main Applications:

Used in oilfield drilling mud, oil well fracturing, and tertiary oil recovery to enhance oil recovery rates. As an efficient diluent (viscosity reducer) and fluid loss reducer for drilling fluids. It can adsorb onto the surface of clay particles, disrupting their network structure, thereby significantly reducing the viscosity and shear force of the mud, improving fluidity and controlling fluid loss, and stabilizing the wellbore. In terms of enhancing crude oil recovery rates, after chemical modification to enhance its surface activity, it can be used as an oil displacement agent in tertiary oil recovery, effectively reducing the interfacial tension between oil and water to drive the residual oil in the formation. Moreover, it can be used as a cement dispersion agent and an environmentally friendly oil-water separation material raw material. As a cheap chemical derived from renewable resources, it has unique value in achieving cost reduction and efficiency improvement in oilfields and promoting green operations.