石油化工高等学校学报

石油化工高等学校学报 ›› 2014, Vol. 27 ›› Issue (2): 65-68.DOI: 10.3969/j.issn.1006-396X.2014.02.014

• 石油工程 • 上一篇    下一篇

松软煤层水平孔生物酶可解堵钻井液研究

  

  1. ( 1. 中国石油大学( 北京) 煤层气研究中心, 北京1 0 2 2 4 9;
    2. 中国石油大学( 北京) 气体能源开发与利用教育部工程研究中心, 北京1 0 2 2 4 9)
  • 收稿日期:2013-11-08 修回日期:2014-03-01 出版日期:2014-04-25 发布日期:2014-06-16
  • 通讯作者: 张遂安( 1 9 5 7 - ) , 男, 教授, 从事煤层气开发理论与技术研究; E - m a i l : s a z h a n g@2 6 3. n e t 。
  • 作者简介:曹立虎( 1 9 8 9 - ) , 男, 硕士研究生, 从事煤层气开发方面的研究;E - m a i l : c u p b c l h@1 6 3. c o m。
  • 基金资助:
    国家科技重大专项“ 山西沁水盆地煤层气水平井开发示范工程” ( 2 0 1 1 Z X 0 5 0 6 1) ; “ 高产水/弱含水煤储层特性排采
    动态预测技术” ( 2 0 1 1 Z X 0 5 0 3 4 - 0 0 3) 。

Research of Enzyme Drilling Fluid in Soft Coal Seam

  1. (1.Coalbed Methane Research Center, China University of Petroleum (Beijing)，Beijing 102249,China； 2.Engineering Research Center of the Ministry of Education for Gas Energy Development & Utilization, China  University of Petroleum (Beijing), Beijing 102249，China)
  • Received:2013-11-08 Revised:2014-03-01 Published:2014-04-25 Online:2014-06-16

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摘要： 生物酶的高效降解作用可使聚合物由长链变短链, 黏度减小, 清除聚合物泥饼效果较好。为此, 采用黏度衰减法, 优选了不同聚合物所对应的生物酶, 配置了4组生物酶可解堵钻井液, 通过滤饼清除实验和渗透率恢复实验测定了所配钻井液的解堵性能。结果表明, 不同聚合物对应不同的最佳生物酶, CMC、 P AC - LV、 HE C和胍胶钻井液的最佳生物酶分别为 X 1、 X 6、 X 3和 X 6; 优选出的4组生物酶可解堵钻井液配方, 均能在钻进后清除泥饼, 并对储层伤害率较小, 具有较高的实用价值。

关键词: 松软煤层,    ,  , 生物酶,    ,  聚合物,    ,  , 护壁,    ,  , 解堵

Abstract: The effective degradation of bioenzymatic can make the polymer changed from longchain to shortchain and the viscosity will be decreased, and the mud cake can be well cleared up. For this purpose, the viscosity exhaustion method was used, the bioenzymatic corresponding to different polymer were preferred, and four recipes of biodegradable drilling fluid were settled. The properties of drilling fluid have been obtained through the filter cake removal experiments and the permeability recovery experiments. The results show that the different kinds of polymers correspond to different optimal biological enzymes, X1, X6, X3 and X6 are the optimal enzyme corresponds to CMC, PACLV, HEC and guar gum drilling fluid respectively; Four recipes of enzyme biodegradable drilling fluid preferred are of higher practical value, which could clean up the mud cake after drilling process, and the degree of injury of the reservoirs is smaller.

Key words: Soft coal seam,    , Enzyme,    ,  Polymer,    , Stable borehole,    ,  Effective degradation

引用本文

曹立虎, 张遂安, 王 晶, 张 羽, 李 彪, 陈兴波. 松软煤层水平孔生物酶可解堵钻井液研究[J]. 石油化工高等学校学报, 2014, 27(2): 65-68.

Cao Lihu,Zhang Suian,Wang Jing,et al. Research of Enzyme Drilling Fluid in Soft Coal Seam[J]. Journal of Petrochemical Universities, 2014, 27(2): 65-68.

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