接枝改性聚乙烯醇的合成及性能评价

刘学鹏, 张明昌, 丁士东, 刘伟, 汪晓静

刘学鹏, 张明昌, 丁士东, 刘伟, 汪晓静. 接枝改性聚乙烯醇的合成及性能评价[J]. 石油钻探技术, 2012, 40(3): 58-61. DOI: 10.3969/j.issn.1001-0890.2012.03.012
引用本文: 刘学鹏, 张明昌, 丁士东, 刘伟, 汪晓静. 接枝改性聚乙烯醇的合成及性能评价[J]. 石油钻探技术, 2012, 40(3): 58-61. DOI: 10.3969/j.issn.1001-0890.2012.03.012
Liu Xuepeng, Zhang Mingchang, Ding Shidong, Liu Wei, Wang Xiaojing. Synthesis and Properties of a High-Temperature Grafting Polyvinyl Alcohol Fluid Loss Additive[J]. Petroleum Drilling Techniques, 2012, 40(3): 58-61. DOI: 10.3969/j.issn.1001-0890.2012.03.012
Citation: Liu Xuepeng, Zhang Mingchang, Ding Shidong, Liu Wei, Wang Xiaojing. Synthesis and Properties of a High-Temperature Grafting Polyvinyl Alcohol Fluid Loss Additive[J]. Petroleum Drilling Techniques, 2012, 40(3): 58-61. DOI: 10.3969/j.issn.1001-0890.2012.03.012

接枝改性聚乙烯醇的合成及性能评价

基金项目: 

国家科技重大专项"大型油气田及煤层气开发"之专题"海相油气井固井完井技术"(编号:2011ZX05005-006-004)部分研究内容

详细信息
    作者简介:

    刘学鹏(1982-),男,山东栖霞人,2010年获中国科学院胶体与界面化学专业博士学位,在站博士后,主要从事固井助剂的研发工作.

  • 中图分类号: TE256+.6;TE256+.7

Synthesis and Properties of a High-Temperature Grafting Polyvinyl Alcohol Fluid Loss Additive

  • 摘要: 聚乙烯醇(PVA)作为油井水泥降失水剂,适用温度较低(120℃),难以满足高温固井的需求。以PVA1788、2-丙烯酰胺-2-甲基丙磺酸(AMPS)、N-乙烯基吡咯烷酮(NVP)和交联剂乙二醛等为原料,合成了一种油井水泥降失水剂接枝改性聚乙烯醇(PVA-1)。室内试验评价了添加降失水剂PVA-1的水泥浆的耐温性能、流变性能、稠化性能、抗压强度和防气窜性能等。试验结果表明,加有降失水剂PVA-1的水泥浆API失水量可以控制在50 mL以下,抗温能力接近150℃;加有PVA-1的水泥浆稠化时间稍有延长,抗压强度不降低,抗析水能力增强;其与分散剂DZS和缓凝剂DZH的配伍性良好,还能提高水泥浆的防气窜能力。综合分析认为,合成的PVA-1能够满足150℃以下高温固井的需求。
    Abstract: As fluid loss additive for oil well cement,polyvinyl alcohol(PVA)is not suitable for formations above 120℃,a novel oil-well cement fluid loss additive(PVA-1),chemically cross-linked polyvinyl alcohol(PVA)was synthesized from PVA,2-acrylamido-2-methyl propane sulfonic acid(AMPS),N-vinyl-2-pyrrolidone(NVP),and cross-linking agent.The properties(water-loss control property,rheology,thickening curve,thickening time,free water,compressive strength and static gelling strength)of the cement slurry with PVA-1 were evaluated.The results show that the API fluid loss of the cement slurry with PVA-1 can be controlled under 50 mL,while its temperature tolerance is next to 150℃;the cement slurry with PVA-1 has slightly longer thickening time,no reduction in compressing strength and improved water precipitation resistance;moreover,the fluid loss additive (PVA-1)is highly compatible with dispersing agent DZS and retarder DZH,and can improve gas channeling of slurry.The study shows that PVA-1 can meet the requirements of high temperature cementation at nearly 150℃.
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出版历程
  • 收稿日期:  2011-11-03
  • 修回日期:  2012-04-16
  • 刊出日期:  1899-12-31

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