Most of the operating oil fields are in late stages development, which special attention is paid to production energy efficiency. In accordance with trend toward digitalization technical processes, intelligent control stations for wells currently being developed, one main tasks maintain equipment operation an optimal mode. This work aims develop a methodology selecting energy-efficient well mod...

Emulsification of produced immiscible mixed liquid of oil and water is a problem frequently recognized in surface production facilities in oil fields. The formed emulsions are required to be demulsified to avoid the negative consequences on piping and processing equipment. Nowadays, chemical demulsification is a preferable method to avoid or retard emulsification during the process of oil treat...

Nano-assisted inclusion separation of alkali metals from basic solutions was reported by an inclusion-facilitated emulsion liquid membrane process. The novelty of this study is application of nanobaskets of calixcrown in the selective and efficient separation of alkali metals as both the carrier and the surfactant. For this purpose, two diacids, p-tert-butylcalix[4]arene-1,2-crown-3 in the cone...

Emulsified water is generally present in crude oil as a result of mixing occurring during production operations. The formation of emulsion leads to problems in production and also transportation. Therefore the need to break oil/water emulsions system through demulsification process using chemical surfactants for improved oil recovery operations. Selected cationic surfactants were effective in s...

Glycidol is used as a stabilizer in the manufacture of vinyl polymers and natural oils and as an intermediate in the synthesis of glycerol, glycidyl ethers, and amines. It is also used as an alkylating agent, demulsifier, and dye-leveling agent and for sterilizing milk of magnesia. Glycidol is an alkylating agent which reacts readily with glutathione; it causes a decrease in glutathione content...

HYW (Hong Yi Wu line) heavy oil emulsion in Xinjiang Oilfield (Karamay, China) is a kind of with high viscosity and emulsification. Its reaches 120,000 mPa·s at 40 °C. The has no demulsification. Even if the demulsification temperature 90 degrees, concentration demulsifier 260 mg/L. In this paper, new process thermochemical after blending studied. First, SE low-viscosity 640 water cut 90% was s...

Saline water necessarily contained in crude oil forms complex and stable water-in-oil (w/o) emulsions with oil. Due to the negative impact of this emulsion on oil’s transportation refining, special materials are added help break separate water. Herein, a comparative study demulsifying ability concerning w/o original freshly milled quartz (FMQ) particles isolated from river sand was carried out....

Abstract The average burial depth of carbonate reservoirs in Shunbei area exceeds 7300 meters, and the bottom hole temperature is as high 160°C. commonly used cross-linked acid system cannot meet needs fracturing. Therefore, this article uses AM, AMPS, acrylamide (AM) modified monomers, acrylic (AA) monomers to synthesize thickener SBCH-1, organic zirconium crosslinking agent SBJL1 was synthesi...

Oil-water emulsion formation is common in oil fields. The a problem which causes an increase production costs and decrease quality. Therefore, demulsifier formulation needed to overcome these problems. use of household waste, particularly disposable diapers, promising alternative. One the substances contained diapers sodium polyacrylate super absorbent polymer, known as polyacrylate. substance ...