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裂缝性气藏封缝堵气技术研究

韩子轩 林永学 柴龙 李大奇

韩子轩, 林永学, 柴龙, 李大奇. 裂缝性气藏封缝堵气技术研究[J]. 钻井液与完井液, 2017, 34(1): 16-22. doi: 10.3969/j.issn.1001-5620.2017.01.003
引用本文: 韩子轩, 林永学, 柴龙, 李大奇. 裂缝性气藏封缝堵气技术研究[J]. 钻井液与完井液, 2017, 34(1): 16-22. doi: 10.3969/j.issn.1001-5620.2017.01.003
HAN Zixuan, LIN Yongxue, CHAI Long, LI Daqi. Plugging Micro-fractures to Prevent Gas-cut in Fractured Gas Reservoir Drilling[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(1): 16-22. doi: 10.3969/j.issn.1001-5620.2017.01.003
Citation: HAN Zixuan, LIN Yongxue, CHAI Long, LI Daqi. Plugging Micro-fractures to Prevent Gas-cut in Fractured Gas Reservoir Drilling[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(1): 16-22. doi: 10.3969/j.issn.1001-5620.2017.01.003

裂缝性气藏封缝堵气技术研究

doi: 10.3969/j.issn.1001-5620.2017.01.003
基金项目: 

国家重大专项“彭水地区常压页岩气勘探开发示范工程”(2016ZX05061);国家自然科学基金重大项目“页岩油气高效开发基础理论研究”(51490650)。

详细信息
    作者简介:

    韩子轩,1982年生,博士,现为中国石化石油工程技术研究院在站博士后,主要从事钻井液技术研究工作。电话(010)84988573;E-mail:hanzx.sripe@sinopec.com。

  • 中图分类号: TE282

Plugging Micro-fractures to Prevent Gas-cut in Fractured Gas Reservoir Drilling

  • 摘要: 塔里木油田塔中地区碳酸盐岩奥陶系储层地质条件复杂,储层裂缝发育,裂缝开度为20~400 μm的小裂缝和微裂缝所占比例在50%左右,钻井过程中井漏溢流频发,气侵现象严重,增加了井控风险。由于地层微裂缝分布复杂,且温度高(180℃),导致架桥粒子、充填粒子级配难度大,钻井液封堵效果不理想,而采用常规钻井液封堵评价方法在模拟裂缝形态和效果评价方面与现场实际存在着较大的差距。为此,提出了有针对性地封缝堵气评价方法:利用天然/人造岩心制作出微裂缝岩心模型,微裂缝开度介于20~400 μm之间,缝面粗糙度与天然裂缝接近;自主设计了封缝堵气实验评价装置,建立了微米级裂缝的封缝堵气评价方法。室内初步优选出抗高温的颗粒、纤维、可变形材料等纳微米封堵材料,并形成封堵配方,封堵配方与聚磺钻井液体系、ENVIROTHERM NT体系配伍性好,且酸溶率高于70%,不易污染储层。

     

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出版历程
  • 收稿日期:  2016-11-09
  • 刊出日期:  2017-01-31

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