Principle and technique of sand consolidation with novel epoxy-phenolic resins system
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摘要: 为了在低成本下解决低温油井中的化学防砂问题,采用共混的方法制备了一种以环氧树脂和酚醛树脂为主要原料,且无需其他固化剂的新型树脂固砂剂,并在固砂剂的研究基础上初步研制了树脂涂覆砂.通过红外光谱分析,研究了树脂固化的机理.实验结果表明,固砂剂可在50 ℃的水浴中将砂石固结,固结砂样具有较高的抗压强度和渗透率,而且随着树脂用量的增加,固结砂样的抗压强度可以进一步得到提高.涂覆砂可以在酚醛树脂作为外固化剂的情况下固结,其性能满足使用要求.酚醛树脂中的酚羟基和羟甲基与环氧树脂中的环氧基的反应是固化反应的主要机理.Abstract: To solve the problem of chemical sand control in low-temperature oil wells cost-effectively, a novel sand consolidation agent was prepared with epoxy resin and phenolic resin as the primary raw material and without any other curing agents by means of the blending method. On the basis of the sand consolidation agent, a kind of resin-coated sand was developed initially. By analysis of Fourier transform infrared spectroscopy(FT-IR), the cure mechanism of resins was investigated. The results show that thesand consolidation agent can consolidate sandstone in water at 50℃ and consolidated specimens have high compression strength and permeability. As the quantity of resins is increased, the compression strength of consolidated specimens can be further increased. The resin-coated sand can consolidate with the phenolic resin as an external curing agent and the properties of consolidated specimens can satisfy use requirements. The reaction of phenolic hydroxyl and hydroxyl methyl in phenolic resin with epoxy in epoxy resin is the major mechanism of the curing reaction.
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Key words:
- oil wells /
- epoxy resins /
- sandstone /
- sand consolidation /
- phenolic resins
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[1] 曾庆坤, 金千欢, 陈文秋. 提高化学防砂效果关键技术探讨[J]. 断块油气田, 1997, 4(2):64~66 Zeng Qingkun, Jin Qianhuan, Chen Wenqiu. The study of the key technology to improve the chemical sand control effect[J]. Fault- Block Oil and Gas Field, 1997, 4(2):64~66(in Chinese) [2] 胡玉国, 邓大智, 宿 辉, 等. 我国化学防砂工艺技术现状和发展趋势 . 精细与专用化学品, 2002,10(23):14~16 Hu Yuguo, Deng Dazhi, Su Hui, et al. Processing technology and developing trend of chemical sand control in China[J]. Fine and Specialty Chemicals, 2002,10(23):14~16(in Chinese) [3] Anon. Resin performance vs internal gravel packing with acid prepacking[J]. Journal of Petroleum Technology, 2000, 52(3):48~53 [4] 吴建平, 衣春霞, 朱彩虹, 等. 高含水期新型化学固砂剂试验研究[J]. 断块油气田, 2002, 9(6):67~69 Wu Jianping, Yi Chunxia, Zhu Caihong, et al. Experimental study on novel sand consolidation chemical in high water-bearing period[J]. Fault-Block Oil and Gas Field, 2002, 9(6):67~69(in Chinese) [5] 徐艳伟. 脲醛树脂固砂工艺技术在文留油田的应用[J]. 油田化学, 2001,18(3):196~198 Xu Yanwei. Urea-formaldehyde aqueous gelling fluid for sand consolidation and its uses at Wenliu oil fields[J]. Oilfield Chemistry, 2001, 18(3):196~198(in Chinese) [6] Hailey T, Cox M, Johnson K. Screenless single trip multizone sandcontrol tool system saves rig time . Proceedings-SPE International Symposium on Formation Damage Control . Lafayette:SPE, 2000. 573~583 [7] Zhou Fujian, Yang Xianyou, Xiong Chunming, et al. Application and study of fine-silty sand control technique for unconsolidation quaternary sand gas reservoir, Sebei Qinghai . Proceedings-SPE International Symposium and Exhibition on Formation Damage Control . Lafayette:SPE, 2004. 47~52 [8] 宋显民, 孙成林, 张立民, 等. 酚醛树脂防砂与改性树脂固砂[J]. 石油钻采工艺, 2002, 24(6):57~60 Song Xianmin, Sun Chenglin, Zhang Limin, et al. Sand control uses phenolic resin and sand consolidation uses modified resin[J]. Oil Drilling and Production Technology, 2002, 24(6):57~60(in Chinese) [9] 陈应淋, 严锦根, 黄 煦, 等. 低温油层涂覆砂防砂工艺研究与应用[J]. 江汉石油学院学报, 2001,23(3):42~43 Chen Yinglin, Yan jingen, Huang Xu, et al. Application of sand control process with coated sand in low temperature reservoir[J]. Journal of Jianghan Petroleum Institute, 2001, 23(3):42~43(in Chinese) [10] 万仁溥主编. 采油工程手册[M]. 北京:石油工业出版社, 2000. 128~129 Wan Renpu. Oil extraction engineering handbook[M]. Beijing:Petroleum Industry Press, 2000.128~129(in Chinese)
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