| 摘要: |
| 以渤海油田某一区块为例,采用把油泥加入到脱水合格的外输原油中,通过海底管道输送回陆地的方法来解决海上油田含聚合物油泥处理问题,并验证此方法的可行性。利用测定乳状液颗粒粒径、Zeta电位、电导率的方法以及自然沉降法确定含聚合物油泥在原油中的分散稳定性。对加入油泥之后原油以及主要加工产品的性质进行分析,考察油泥的加入对原油基础性质的影响。结果表明:外输原油中最大可加入质量分数为0.5％的含聚合物油泥,不会产生油泥沉降堵塞海底管道的问题;加入0.5％油泥之后的原油黏度降低,流动性增强;减压渣油收率增加15％,15 ℃时延展度大于150 cm,渣油抗低温性能增强,有利于生产抗低温型重交通道路沥青。 |
| 关键词: 含聚合物油泥 海上油田 原油品质 稳定分散浓度值 油泥处理 |
| DOI：10.3969/j.issn.1673-5005.2015.02.022 |
| 分类号::TE 81 |
| 基金项目:国家自然科学基金项目(51474223);国家科技重大专项(2011ZX05024-004-12) |
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| Effect of polymer-containing oil sludge on stability and properties of crude oil |
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HOU Chunjuan1, JIANG Qingzhe1, SONG Zhaozheng1, TAN Guorong2, ZHENG Shuai1
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(1.School of Science in China University of Petroleum, Beijing 102249, China;2.State Key Laboratory of Offshore Oil Exploitation in CNOOC Research Institute, Beijing 100027, China)
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| Abstract: |
| The case of polymer-containing oil sludge in Bohai Oilfield was studied. The oil sludge was mixed with dehydrated crude oil, which was transported by submarine pipeline to land to investigate the issue of the oil sludge treatment. And the feasibility of this method was verified through experiments. The particle size, Zeta potential, and conductivity, as well as the natural precipitation of oil emulsion were determined to characterize the dispersion stability of polymer-containing oil sludge in crude oil. The effects of oil sludge on the properties of crude oil and the distillates were analyzed. The results indicate that the maximum permissible concentration of polymer-containing oil sludge is 0.5％, at which the oil sludge does not precipitate in transporting. The viscosity of crude oil reduces after oil sludge addition, through which the liquidity is enhanced. The yield of vacuum residue is increased by 15％. And the ductility of the residue at 15℃ is longer than 150 cm, which means the low temperature performance is improved. And this favors producing heavy duty road asphalt using in low temperature areas. |
| Key words: polymer-containing oil sludge offshore oilfield crude oil properties dispersion stability concentration oil sludge treatment |
