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SHB1-6H井长裸眼钻井液技术

牛晓 潘丽娟 甄玉辉 于培志

牛晓, 潘丽娟, 甄玉辉, 于培志. SHB1-6H井长裸眼钻井液技术[J]. 钻井液与完井液, 2016, 33(5): 30-34. doi: 10.3969/j.issn.1001-5620.2016.05.006
引用本文: 牛晓, 潘丽娟, 甄玉辉, 于培志. SHB1-6H井长裸眼钻井液技术[J]. 钻井液与完井液, 2016, 33(5): 30-34. doi: 10.3969/j.issn.1001-5620.2016.05.006
NIU Xiao, PAN Lijuan, ZHEN Yuhui, YU Peizhi. Drilling Fluid Technology for Long Open Hole Section of Well SHB1-6H[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(5): 30-34. doi: 10.3969/j.issn.1001-5620.2016.05.006
Citation: NIU Xiao, PAN Lijuan, ZHEN Yuhui, YU Peizhi. Drilling Fluid Technology for Long Open Hole Section of Well SHB1-6H[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(5): 30-34. doi: 10.3969/j.issn.1001-5620.2016.05.006

SHB1-6H井长裸眼钻井液技术

doi: 10.3969/j.issn.1001-5620.2016.05.006
基金项目: 国家863计划项目(2012AA091502)支持。
详细信息
    作者简介:

    牛晓,毕业于长安大学化学工程与工艺专业,从事钻井液设计及相关研究工作。E-mail:niuxiaoxiao@126.com。

  • 中图分类号: TE254.3

Drilling Fluid Technology for Long Open Hole Section of Well SHB1-6H

  • 摘要: SHB1-6H井是中石化西北分公司部署在顺北区块的一口超深开发井,该井因采用四级井身结构,二开裸眼段长4 460 m,其中泥岩段长1 463 m,地质构造复杂,三叠系、石炭系和志留系硬脆性泥岩发育,易发生坍塌掉块,中间的二叠系由于地层破碎易发生漏失。针对以上问题,选用了钾胺基聚磺钻井液体系,以满足地层特性对钻井液抑制性的要求,但体系中原用的磺化材料是以牺牲钻井液抑制性来达到降低高温高压滤失量的目的,因此引入了抗温抗盐聚合物降滤失剂RHPT-1和抗盐成膜剂CMJ-1,以进一步提高抑制性和封堵性,降低高温高压滤失量。经现场应用表明,优化后的钾胺基聚磺成膜钻井液流型易于控制,通过保持胺基页岩抑制剂HPA加量在5~7 kg/m3,KCl加量在30~50 kg/m3,保障了钻井液有强的抑制性;通过使用高软化点复合沥青增强钻井液封堵能力,控制高温高压滤失量小于10 mL,解决了三叠系以深地层易发生井壁失稳的难题;在易漏地层二叠系使用了竹纤维、超细碳酸钙和聚合物凝胶堵漏剂PSD等随钻堵漏材料,避免了井漏的发生,顺利完成了SHB1-6H井的施工,二开井段扩大率仅为12%,比邻井顺北1井降低了63.74%。该套钻井液技术保障了顺北区块井身结构优化的实施。

     

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出版历程
  • 收稿日期:  2016-06-09
  • 刊出日期:  2016-09-30

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