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Abstract During the exploration and production of oil and gas, vast quantities of chemicals about two-hundred thousand tones are consumed. Moreover, it is interesting to note that of these two thousand tons, over one hundred thousand tons are lost into the environment each year causing great damage.As a consequence, there are strong regulatory pressures on the oil and gas companies to move towards the use of Eco-friendly “green” chemicals. The desire to replace petroleum-based materials with environmentally friendly and sustainable alternatives has stimulated the development of vegetable oil-based materials as petroleum additives. The advantages of petroleum additives from renewable sources have long been recognize. Ingeneral, petroleum additives based on renewable sources have very low or almost negligible aquatic toxicity and are, in most cases, readily biodegradable. The triglyceride oil can be further broken down to yield free fatty acid.The fatty acid can be modified by chemical reaction to give a range of other functional groups, amides, amines, esters. these chemically modified fatty acid are useful especially for petroleum-related applications, used as demulsifier ,corrosion inhibitor and bactericides , works with organophilic clay to produce an amine-treated clay (mud) used for filtration control in oil drilling base mud and synthetic base. The main goal of this study is to prepare a new formulation has multifunctional properties to replace the existed commercial formulation for gas and oil-field industries.Toward this goal, two different specialty chemicals in this formulation were synthesized. The first ingredient is quaternary fatty acid imidazoline QFI with corrosion inhibition property and antimicrobial properties, which synthesized from renewable sources. The other ingredient is fatty alkoxylate copolymer NPC, which act as rheology modifier, demulsifying agent and pH control. Then, in the next section the obtained products QFI and NPC were characterized and evaluated in formulation as multifunctional formulation for oil and gas industries. The results showed that newly formulated surfactants prepared a good ability to act as water soluble types, no-foaming and stable film-persistent corrosion inhibitor and demulsifier for the thermodynamic-hydrodynamic corrosivity predictive models for the assessment of internal corrosion /erosion in the surface production pipelines. Furthermore, the newly formulated showed strong antibacterial more than other commercial biocide samples. The inhibition efficiency of these prepared cationic surfactants increases with increasing the concentration at 50°C. The efficiency of corrosion inhibitor corrichem in the surface production pipelines of the oil and gas wells depend strongly on the chemical and physical properties of the produced oil and gas, water condensate, clay deposits and sand production. Also, The prevailed that the prepared demulsifier samples are effective. They achieved complete separation of water during 30 min at 200 ppm. The prepared samples were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD),Thermogravimetric Analysis (TGA),Scanning Electron Microscopy (SEM), Size Exclusion Chromatography (SEC) , Zeta-sizer(ZS) and Zeta-potential (ZP). It can be concluded that the new synthesized multifunctional are of superior results compared with the reference samples. |