本文選題：含聚采出液 + 乳狀液��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：目前,油田已經(jīng)進(jìn)入到三次采油階段,聚合物驅(qū)油已經(jīng)在油田上得到了廣發(fā)的應(yīng)用,但是,在聚驅(qū)采出液中原油含水量特別高,能夠達(dá)到90%以上,在三次采油過程中,為了達(dá)到增產(chǎn)的目的,會加注各種化學(xué)試劑(聚合物、表面活性劑等),這樣就會使采出液形成乳化程度很高的油水乳狀液,使得油水分離困難,油水乳狀液的存在直接影響到油品的性能,因此,如何找到一種有效、快速處理油田采出液的方法,成為目前迫在眉睫需要解決的問題。本文以含聚合物采出液作為研究對象,分析采出液的油水分離過程,考察油水分離過程特性并優(yōu)化條件參數(shù),通過測定油水分離后的油中水含量以及水中油含量,分析比較從而確定最優(yōu)工藝條件;同時分析電脫水處理采出液的過程,確定電脫水過程中的最優(yōu)的工藝條件,并測定不同聚合物濃度采出液擊穿場強(qiáng)的變化規(guī)律,同時對脫水前后的油品性能進(jìn)行分析比較。分析討論電脫水過程的脫水機(jī)理,為油田的實際操作以及工藝優(yōu)化提供理論依據(jù)。研究結(jié)果表明,油水分離過程中最佳的溫度為40℃,最佳的破乳劑投加量為20mg/L,最佳的處理時間為40min;電脫水過程中,最佳的處理溫度為50℃,最佳的破乳劑投加量為20mg/L,最佳的處理時間為70min;電脫水能夠有效的改善油品的性能,并且高聚合物含量的采出液不利于進(jìn)行油水分離,并且容易出現(xiàn)擊穿場強(qiáng)的情況,電脫水過程就是在電場力和化學(xué)試劑共同作用下,破壞油水界面膜強(qiáng)度,改變油水界面張力,使油水乳狀液分離,水滴凝結(jié)沉降脫離的過程。
[Abstract]:At present, the oil field has entered the stage of tertiary oil recovery, and polymer flooding has been widely used in the oilfield. However, the water content of crude oil in the produced fluid of polymer flooding is very high, which can reach more than 90%. In order to achieve the purpose of increasing production, a variety of chemical reagents (such as polymers, surfactants, etc.) will be added, which will result in the formation of oil-water emulsion with a high degree of emulsification, which will make it difficult to separate oil from water. The existence of oil-water emulsion has a direct impact on the performance of oil products. Therefore, how to find an effective and rapid treatment of oil field produced liquid has become an urgent problem to be solved. In this paper, the oil / water separation process of polymer produced liquid is analyzed, the characteristics of oil / water separation process are investigated and the condition parameters are optimized. The oil water content and water oil content after oil water separation are determined. The optimum technological conditions are determined by analyzing and comparing, and the process of electric dehydration is analyzed to determine the optimum process conditions in the process of electric dehydration, and the law of the breakdown field strength of the extracted liquid with different polymer concentrations is determined. At the same time, the performance of oil before and after dehydration was analyzed and compared. The dewatering mechanism of electric dehydration process is analyzed and discussed, which provides a theoretical basis for the practical operation and process optimization of oil fields. The results show that the optimum temperature is 40 鈩，

本文編號：1964651