瓜胶压裂返排液重复利用的室内研究

马红; 黄达全; 李广环; 张爱顺; 龙涛; 曹孜英; 王运动; 苏君

doi:10.3969/j.issn.1001-5620.2017.04.023

瓜胶压裂返排液重复利用的室内研究

doi: 10.3969/j.issn.1001-5620.2017.04.023

中国石油集团渤海钻探工程有限公司泥浆技术服务分公司, 天津 300280

详细信息

作者简介:
马红,1984年生,毕业于南开大学物理化学专业并获硕士学位,现在从事压裂返排液、油基钻屑、钻井液及油田废液废渣的无害化处理技术研究工作。电话(022)25922500/15222158955;E-mail:mah16888@sina.com。

中图分类号: TE92
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出版历程
- 收稿日期: 2017-02-05
- 刊出日期: 2017-07-31

Laboratory Study on Recycling of Flowback Fluid of Guar Gun Fracturing Fluid

Drilling Fluid Technology Services of CNPC Bohai Drilling Engineering Company Limited, Dagang, Tianjin 300280

摘要

摘要: 瓜胶压裂液的返排液已成为油田水体的主要污染源之一。将压裂后的返排液处理后重新配制压裂液，不仅可以保护环境，还可以节约水资源，降低成本。为了简化处理流程，提高返排液处理量，引入定位除硼及金属离子的方法，最终实现返排液的重复利用。以官西-5井的压裂返排液为实验对象，分析了压裂返排液中无机离子、固体颗粒和残余硼对压裂液重复利用的影响。研究结果表明，11种无机离子对压裂液重复利用有不同程度的影响，并且总结得出了不同离子对压裂液配制影响的浓度限值；返排液经过高效破胶、絮凝、定位除硼及金属离子反应之后，石油类去除率达91.71%，浊度去除率达94.6%，色度去除率达95.8%，Ca²⁺、Mg²⁺、Fe²⁺和B浓度分别降至36.07、19.44、44.3和3.35 mg/L。研究了各种离子对返排液重复利用的影响，采用了定位除硼及金属离子的方法，根据返排液中残余硼及金属离子含量加入适量除硼剂和金属离子去除剂，将其浓度控制在影响范围内，该实验方法具有操作简便、处理量大，处理成本低等优点，便于现场推广应用。用处理后的返排液重新配制的瓜胶压裂液，在100℃剪切1 h后黏度仍保持在100 mPa s以上，满足《压裂液通用技术条件》要求，实现了压裂返排液的重复利用。
- 压裂返排液 /
- 离子影响 /
- 离子去除 /
- 重复利用
Abstract: Guar gum fracturing flowback fluid has become one of the main pollution sources to oilfield water. If the flowback fluid is used to re-mix fracturing fluid after treatment, it not only protects the environment from being polluted, but also saves water resource and reduces operation cost. To simplify the treatment process and to increase the volume of treatment, a method for the removal of boron and metal ions was introduced to realize the recycling of the fracturing flowback fluid. Sample of fracturing flowback fluid from the well Guanxi-5 was analyzed for the effect of inorganic ions, solid particles and residual boron on the recycling of the flowback fluid. The study showed that 11 inorganic ions in the flowback fluid affect its recycling to varying degrees. The concentration thresholds of these ions affecting the recycling process were summarized. Flowback fluid after gel breaking, flocculation, boron and metal ion removal, has its oil component removed by 91.71%, turbidity reduced by 94.6%, colourity reduced by 95.8%, and Ca²⁺, Mg²⁺, Fe²⁺ and B reduced to 36.07 mg/L, 19.44 mg/L, 44.3 mg/L and 3.35 mg/L, respectively. Boron remover and metal ions removers were added to control the concentrations of boron and metal ions within the acceptable ranges based on their concentrations in the flowback fluid. This experimental method, because of its advantages such as simplicity in operation, large volume of treatment and low cost, is easy to apply in field operation. A guar gum fracturing fluid made from a treated flowback fluid, has its viscosity remained above 100 mPa·s after shearing for 1 h under 100℃, satisfying the requirement of "General technical specifications of fracturing fluids," and realizing the recycling of fracturing flowback fluids.
- Fracturing flowback fluid /
- Ionic effect /
- Ion removal /
- Recycling

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参考文献(13)

[1]	董小丽,秦芳玲,马云,等. 油田压裂废水的Fenton氧化-絮凝-SBR联合处理方法研究[J]. 石油化工应用, 2013,32(5):95-99. DONG Xiaoli,QIN Fangling,MA Yun,et al.Research on fenton oxidation-flocculation-SBR combined processing method of oil field fracturing wastewater[J]. Petrochemical Industry Application,2013,32(5):95-99.
[2]	迟永杰,卢克福. 压裂返排液回收处理技术概述[J]. 油气田地面工程,2009,28(7):89-90. CHI Yongjie,LU Kefu.Summary of fracturing flowback fluid recycling technology[J].Oil-Gasfield Surface Engineering,2009,28(7):89-90.
[3]	吴新民,赵建平,陈亚联,等.压裂返排液循环再利用影响因素[J]. 钻井液与完井液,2015,32(3):81-85. WU Xinmin,ZHAO Jianping,CHEN Yalian,et al.Influencing factors of fracturing flowback fluid recycling[J].Drilling Fluid & Completion Fluid,2015, 32(3):81-85.
[4]	熊颖,刘友权,石晓松,等. 可回收再利用的低分子胍胶压裂液技术研究[J]. 石油与天然气化工,2014, 43(3):279-283. XIONG Ying,LIU Youquan,SHI Xiaosong,et al. Technology research of the recycled low molecular guar gum fracturing fluid[J].Chemical Engineering of Oil & Gas,2014,43(3):279-283.
[5]	钟显,谭佳,赵立志,等. 压裂返排液预处理的试验研究[J]. 内蒙古石油化工,2005(11):66-67. ZHONG Xian,TAN Jia,ZHAO Lizhi,et al.Research on fracturing flowback fluid pretreatment[J].Inner Mongolia Chemical Engineering,2005 (11):66-67.
[6]	张吉东. 油田压裂返排液的处理研究现状[J]. 科技创新与应用,2014(22):22. ZHANG Jidong.The research status of oil field fracturing flowback fluid[J].Technology Innovation and Application, 2014(22 ):22.
[7]	刘立宏,王娟娟,高春华. 多元改性速溶胍胶压裂液研究与应用[J]. 石油钻探技术,2015,43(3):116-119. Liu Lihong,Wang Juanjuan,Gao Chunhua. Research and application of a multicomponent modified instant Guar fracturing fluid[J]. Petroleum Drilling Techniques, 2015,43(3):116-119.
[8]	侯普艳. 胍胶压裂返排液再利用技术研究与应用[J]. 科技展望,2015(19):126,128. HOU Puyan.Technology research and application on recycling of guar gum fracturing fluid[J].Science and Technology,2015 (19):126,128.
[9]	匡彬,石勇,欧阳二明. 海水同步脱盐除硼工艺研究[J]. 水处理技术,2015,7(41):87-90. KUANG Bi n,SHI Yo n g,OUYANG Ermi n g. Technology research on synchronous desalted seawater and boron removal[J].Technology of Water Treatment, 2015,7(41):87-90.
[10]	林雪丽,黄海燕,赵启升,等. 返排液中无机盐离子对压裂液特性的影响[J]. 钻井液与完井液,2013,30(2):73-76. LIN Xueli,HANG Haiyan,ZHAO Qisheng,et al. Inorganic ions influence on fracturing fluid properties[J]. Drilling Fluid & Completion Fluid,2013,30(2):73-76.
[11]	卜有伟,郝以周,吴萌,等.红河油田压裂返排液回用技术研究[J]. 石油天然气学报,2014,36(6):139-142. BU Youwei,HAO Yizhou,WU Meng,et al.Fracturing flowback fluid recycling technology research of red river oil field[J].Journal of Oil and Gas Technology,2014, 36(6):139-142.
[12]	伦伟杰,郭慧军,杨健,等.压裂返排液回用处理新技术试验研究[J]. 油气田地面工程,2015,34(12):31-33. LUN Weijie,GUO Huijun,YANG Jian,et al.New technology research on fracturing flowback fluid recycling[J].Oil-Gas Field Surface Engineering,2015, 34(12):31-33.
[13]	宁方军. 油田压裂返排液的深度处理技术研究[D]. 大庆:大庆石油学院,2010. NING Fangjun.Advanced treatment research on fracturing flowback fluid of oilfield[D].Daqing:Daqing Petroleum Institute,2010.