Evaluation of Demulsifier for AGOCO, Nafoora Oilfield, Libya: Demulsifier Bottle Test

Abstract

Continued advances in technology have increased the demand of crude oil. The most common types of problems encountered in oil and gas production operations is Emulsions (Normal or Reverse). The formation of water and oil emulsions is largely unavoidable in the petroleum industry. Break-up of these oil field emulsions is important either for recovery of crude oil or environmental cleanup in the oil field. The oil field emulsions, especially the water-in-oil type of emulsions, are very difficult to break. Chemicals products used to break emulsion and separate oil. Oil production companies contract with professional companies in chemical treatment. One of these companies is JOWF OIL TECHNOLGY COMPANY that product chemicals to break emulsion. One of these products is JOF BREAK 6266 that used in this study. JOF BRAIK 6266N is a blend of alkoxylated resins, epoxy compounds and high molecular weight polyols in an aromatic solvent. This class of chemicals is commonly used in oilfields for separation of oil and water from the emulsion. Several concentrations of JOWFE products coded ( BI 9,BI 12 and BI 26) that used in this study were screened by using standard bottle test. JOF BRAIK 6266N (BI 09) is found to be suitable for demulsification of water and oil from the crude oil/water emulsion of Nafoora field gives better performance than the chemical used (NALCO) at present in the field at the lower and same concentration.

JOF BRAIK 6266N was tested in laboratory for the compatibility of other additives and was found to be compatible.