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长宁区块页岩气水平井无土相油基钻井液技术

凡帆 王京光 蔺文洁

凡帆, 王京光, 蔺文洁. 长宁区块页岩气水平井无土相油基钻井液技术[J]. 石油钻探技术, 2016, 44(5): 34-39. doi: 10.11911/syztjs.201605006
引用本文: 凡帆, 王京光, 蔺文洁. 长宁区块页岩气水平井无土相油基钻井液技术[J]. 石油钻探技术, 2016, 44(5): 34-39. doi: 10.11911/syztjs.201605006
FAN Fan, WANG Jingguang, LIN Wenjie. Clay-Free Oil Based Drilling Fluid Technology for Shale Gas Horizontal Wells in the Changning Block[J]. Petroleum Drilling Techniques, 2016, 44(5): 34-39. doi: 10.11911/syztjs.201605006
Citation: FAN Fan, WANG Jingguang, LIN Wenjie. Clay-Free Oil Based Drilling Fluid Technology for Shale Gas Horizontal Wells in the Changning Block[J]. Petroleum Drilling Techniques, 2016, 44(5): 34-39. doi: 10.11911/syztjs.201605006

长宁区块页岩气水平井无土相油基钻井液技术

doi: 10.11911/syztjs.201605006
基金项目: 

中国石油天然气集团公司科技项目“西部大庆建设长庆钻完井整体提速及压裂一体化技术研究与现场试验”(编号:2013T-0105-001)部分研究内容。

详细信息
    作者简介:

    凡帆(1986-),男,湖北仙桃人,2008年毕业于长江大学应用化学专业,2011年获西南石油大学应用化学专业硕士学位,工程师,主要从事钻井液完井液技术研究。

  • 中图分类号: TE254+.3

Clay-Free Oil Based Drilling Fluid Technology for Shale Gas Horizontal Wells in the Changning Block

  • 摘要: 针对四川长宁区块页岩气水平井应用的有土相油基钻井液存在的流变性差、易诱发井漏等技术难题,开展了无土相油基钻井液技术研究。为提高油基钻井液的电稳定性和悬浮性,研制了复合型乳化剂G326和油溶性聚合物增黏剂G336,并确定了无土相油基钻井液配方。室内试验结果表明,与有土相油基钻井液相比,无土相油基钻井液具有更强的电稳定性和更低的终切力,有利于预防高密度条件下油基钻井液的稠化和复杂地层漏失问题。无土相油基钻井液在长宁区块某平台4口页岩气水平井进行了现场应用,这4口井井壁稳定,无缩径无掉块,起下钻畅通,井眼始终处于良好净化状态,平均机械钻速提高37.8%。研究结果表明,无土相油基钻井液解决了传统高密度油基钻井液因结构强度大而易诱发井漏的问题,满足了长宁区块页岩气水平井安全快速钻井的需要。

     

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出版历程
  • 收稿日期:  2015-12-23
  • 修回日期:  2016-06-15
  • 刊出日期:  1900-01-01

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