熱洗法處理頁巖氣開采油基鉆屑工藝研究
發(fā)布時間:2018-06-08 12:17
本文選題:油基鉆屑 + 熱洗法; 參考:《現(xiàn)代化工》2017年03期
【摘要】:西南某油氣公司頁巖氣開采油基鉆屑樣品成分復雜,處理難度大,在對其進行理化指標分析的基礎(chǔ)上,采用熱化學洗滌法進行基油分離處理。通過正交試驗確定除油劑中各藥劑對除油效果的影響程度:基油剝離劑潤濕反轉(zhuǎn)劑滲透劑;最佳加藥量:基油剝離劑S的質(zhì)量濃度為0.5 g/L,潤濕反轉(zhuǎn)劑CTAB的質(zhì)量濃度為150 mg/L,滲透劑OT的質(zhì)量濃度為50 mg/L。通過單因素實驗優(yōu)化工藝參數(shù),考察了溫度、pH、時間、洗滌次數(shù)、除油劑與油基鉆屑的體積比對油基鉆屑除油工藝的影響。結(jié)果表明:調(diào)節(jié)pH在4左右,V(除油劑)∶V(鉆屑)為3∶1,洗滌溫度為50℃,洗滌時間為1.5 h,基油分離后泥餅石油類物質(zhì)質(zhì)量分數(shù)低于1%,同時,分離液可循環(huán)用于新的油基鉆屑稀釋,分離效果良好。
[Abstract]:Based on the analysis of physical and chemical indexes, the sample of oil based drilling chip produced by shale gas in Southwest China is complex and difficult to deal with. Based on the analysis of physical and chemical indexes, the base oil is separated by thermochemical washing method. The degree of influence of each agent on the oil removal effect was determined by orthogonal test: base oil peeling agent wetting reverse agent permeant; The optimum dosage is: the mass concentration of base oil stripping agent S is 0.5 g / L, the mass concentration of wetting reversal agent CTAB is 150 mg / L, and the mass concentration of osmotic agent OT is 50 mg / L. The effects of temperature, pH, time, washing times and the volume ratio of oil remover to oil based cuttings on the oil removal process of oil based drilling chips were investigated by single factor experiments. The results show that the pH value is about 4%, the washing temperature is 50 鈩,
本文編號:1995763
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