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B国Syl气田Syl25井钻井液技术

刘海鹏,  王本利,  赵黎明,  李希君,  洪航海,  王伟,  吴万华

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文章导航 > 钻井液与完井液  > 2017 >  34(3): 44-48
刘海鹏, 王本利, 赵黎明, 李希君, 洪航海, 王伟, 吴万华. B国Syl气田Syl25井钻井液技术[J]. 钻井液与完井液, 2017, 34(3): 44-48. doi: 10.3969/j.issn.1001-5620.2017.03.008
引用本文: 刘海鹏, 王本利, 赵黎明, 李希君, 洪航海, 王伟, 吴万华. B国Syl气田Syl25井钻井液技术[J]. 钻井液与完井液, 2017, 34(3): 44-48. doi: 10.3969/j.issn.1001-5620.2017.03.008
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LIU Haipeng, WANG Benli, ZHAO Liming, LI Xijun, HONG Hanghai, WANG Wei, WU Wanhua. Drilling Fluid Technology for Use in Drilling Well Sy125 in Syl Gas Field in Country B[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(3): 44-48. doi: 10.3969/j.issn.1001-5620.2017.03.008
Citation: LIU Haipeng, WANG Benli, ZHAO Liming, LI Xijun, HONG Hanghai, WANG Wei, WU Wanhua. Drilling Fluid Technology for Use in Drilling Well Sy125 in Syl Gas Field in Country B[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(3): 44-48. doi: 10.3969/j.issn.1001-5620.2017.03.008
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B国Syl气田Syl25井钻井液技术

doi: 10.3969/j.issn.1001-5620.2017.03.008

  • 1. 中国石化集团胜利石油工程有限公司钻井工程技术公司, 山东东营 257064;

  • 2. 华北油田公司技术监督检验处, 河北任丘 062552

详细信息
    作者简介:

    刘海鹏,1979年生,高级工程师,2003年毕业于石油大学(华东)应用化学专业,现在从事钻井液的现场技术服务和室内研究工作。电话13589449805;E-mail:haipengl@163.com。

  • 中图分类号: TE254.3

Drilling Fluid Technology for Use in Drilling Well Sy125 in Syl Gas Field in Country B

  • 1. Drilling Engineering Technology Branch of Shengli Petroleum Engineering Ltd., Sinopec, Dongying, Shandong 257064;

  • 2. Technical supervision and inspection department of Huabei Oilfield Company, Renqiu, Hebei 062552

    摘要
  • 摘要: B国Syl气田地质结构复杂，在已布的21口井中，钻井过程中卡钻9口井，报废7口井，出现各种复杂23次。为了能够更好地开发Syl气田，B国国家天然气田有限公司与中石化合作，在Syl气田布井4口，Syl25井是合作的第一口井。Syl25井设计井深3 200 m，实际完钻井深3 560 m。通过室内试验模拟，优选不同体系以应对不同开次地层。施工过程中，通过适当提高膨润土含量和抑制能力，避免粉砂岩钻进振动筛大量跑浆问题；保持良好的流型冲刷井壁，并辅以工程划眼，克服了Syl区块砂岩段的瞬间小井眼问题；选用胺基聚醇钻井液体系应对Syl区块四开井段井壁稳定问题。在设计基础上，配合钻井、地质加深钻进至3 560 m，钻探开发了3 200~3 560 m井段，该井段是B国钻井史上从未钻探地层，获得了该井段地质岩性资料，并在该井段额外发现7套高产气层，完钻测试收获日产量为6.4×105 m3/d的工业气流。

     

    Abstract: The Syl gas field located in Country B has complex geological structures. 21 wells were drilled in this gas field, nine of which have encountered pipe sticking during drilling, 7 abandoned. During drilling of the 21 wells, 23 times of various drilling troubles took place. To better develop the Syl gas field, a cooperation agreement was reached between the National Gas Field Company Ltd. of the country B and Sinopec, which proposed 4 wells in this gas field. The Well Syl-25 was the first well to be drilled, with designed depth of 3,200 m, and actual drilled depth of 3,560 m. Different drilling fluid formulation were selected for use in different intervals. To avoid the flow of drilling fluid over the shale shakers in siltstone drilling, the bentonite content of the drilling fluid was reasonably increased and the inhibitive capacity improved. Good mud rheology, which was maintained to clean the hole, accompanied by reaming operation, overcame the problem of "sudden slim hole" along the sandstone section in the Block Syl. In drilling the fourth interval, amine based poly alcohol drilling fluid was used to stabilize the borehole wall. The Well Syl-25 was finally deepened to 3,560 m with the consent from drilling and geology engineers. Drilling of the hole section from 3,200-3,560 m, which had never been performed in the past in the country B, not only helped the engineers obtain lithological data of this section, it also found 7 extra pay zones with high production rates. Completion tests of the well gave birth to 640,000 m3/day industrial gas flow.

     

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  • 收稿日期:  2017-03-04
  • 刊出日期:  2017-05-31

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