一种有机硼交联剂的性能研究
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- 英文论文题名：Performance Research of an Organic Borate Cross-linker
- 论文作者：崔佳 ; 张汝生 ; 赵梦云 ; 刘松 ; 张锁兵
- 英文论文作者：Jia Cui ; Ru-sheng Zhang ; Meng-yun Zhao ; Song Liu ; Suo-bing Zhang ; Exploration & Production Research Institute ; Sinopec ; Key laboratory for Marine Oil and Gas Exploitation ; Sinopec
- 年：2016
- 作者机构：中国石化石油勘探开发研究院;中国石化海相油气藏开发重点实验室;
- 论文关键词：交联 ; 合成硼酸酯 ; 流变性能
- 英文论文关键词：Cross-link ; Synthetic borate ester ; Rheology performance
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第十七分会：流变学
- 语种：中文
- 分类号：TE39;O627.31
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第十七分会 ; 流变学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：142k
- 原文格式：D
- 会议级别：全国
摘要
目前,油气开采中绝大多数井都需要进行压裂实现工业生产。现有交联压裂液技术主要是以瓜尔胶为代表的植物胶类天然多糖化合物,通过硼酸盐等对骨架双羟基形成交联作用来调节水溶液的流变性能,但由于成本较高,在目前低油价下较难应用。本文报道了可降低交联压裂液成本的新型交联体系。通过表面胺基修饰的纳米二氧化硅与与硼酸酯合成得到的有机硼交联剂,可降低聚合物浓度。利用XPS等波谱手段对冻胶结构进行分析。研究结果表明新型交联剂对瓜尔胶溶液的交联性能与相同摩尔浓度的硼酸钠相比,还表现出更好的耐温耐剪切能力等流变性能。
Nowadays,hydraulic fracturing is the most common method to increasing oil and gas production.The present fracturing fluid chemistry is mainly refers to guar gum,a typical natural polysaccharide plant gum,by cross-linking with borate salt at cis-dihydroxy site to control the rheology of the polymer solution.Due to the low crude oil price,it is expansive to application high concentration guar gum for fracturing.To reduce the polymer concentration and the cost of the stimulation as well,herein a novel cross-linker was syntheses from surface modified nano silica oxide with borate ester,and analyzed by XPS and SEM.The viscosity and rheology of the cross-linker reacted with guar solution was investigated.The results showed that,compared with the sodium borate,the synthetic cross-linker to give better thermo-stability and shear-resistance of the cross-linked guar solution.
Nowadays,hydraulic fracturing is the most common method to increasing oil and gas production.The present fracturing fluid chemistry is mainly refers to guar gum,a typical natural polysaccharide plant gum,by cross-linking with borate salt at cis-dihydroxy site to control the rheology of the polymer solution.Due to the low crude oil price,it is expansive to application high concentration guar gum for fracturing.To reduce the polymer concentration and the cost of the stimulation as well,herein a novel cross-linker was syntheses from surface modified nano silica oxide with borate ester,and analyzed by XPS and SEM.The viscosity and rheology of the cross-linker reacted with guar solution was investigated.The results showed that,compared with the sodium borate,the synthetic cross-linker to give better thermo-stability and shear-resistance of the cross-linked guar solution.
引文
[1]Sun,H.;Qu,Q.;SPE 140817,2011.
[2]Snow,R.;Bachovchin,W.;Barton,R.;et al.J.Am.Chem.Soc.1994,116:10860.
[3]Zhu,L.;Shabbir,S.;Gray,M.;Lynch,V.;Sorey,S.;Anslyn,E.J.Am.Chem.Soc.2006,128:1222.
[2]Snow,R.;Bachovchin,W.;Barton,R.;et al.J.Am.Chem.Soc.1994,116:10860.
[3]Zhu,L.;Shabbir,S.;Gray,M.;Lynch,V.;Sorey,S.;Anslyn,E.J.Am.Chem.Soc.2006,128:1222.