| 仿生绒囊钻井液煤层气钻井应用现状与发展前景 |
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| 引用本文： | 郑力会. 仿生绒囊钻井液煤层气钻井应用现状与发展前景[J]. 石油钻采工艺, 2011, 33(3): 78-81 |
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| 作者姓名： | 郑力会 |
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| 作者单位： | 1.中国石油大学石油工程教育部重点实验室，北京 102249 |
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| 基金项目： | 国家科技重大专项“大型油气田及煤层气开发”子课题(编号:2011ZX05062) |
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| 摘 要： | 仿照细菌结构开发了含仿生绒囊的钻井液。CLY-A井欠平衡钻井表明，无需附加设备，调整钻井液密度0.8~1.0 g/cm3即可循环；CLY-B井空气钻井表明，空气钻井过程中添加不同绒囊处理剂，可实现空气、雾、泡沫和绒囊不停钻转换钻井工作流体；DFS-C井防漏堵漏钻井表明，分压、耗压、撑压方式可控制钻井液漏失速度；FL-D分支井钻井表明，该钻井液具有低剪切速率下高黏度和高剪切速率下低黏度的特性，能够提高井眼清洁效率和机械钻速；J-E井不同压力系统共存于同一裸眼的井下复杂处理表明，该钻井液可以提高低压井段承压能力，满足动态窄密度窗口地层安全钻井。绒囊钻井液应加强绒囊结构微观研究、绒囊钻井液类型开发和低密度循环极限评价等，满足更多地层条件钻井需要。
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| 关 键 词： | 绒囊 钻井液 煤层气 钻井 应用 |
| 收稿时间： | 2019-05-22 |
Application state and prospects of bionic fuzzy-ball drilling fluids for coalbed methane drilling |
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| ZHENG Lihui. Application state and prospects of bionic fuzzy-ball drilling fluids for coalbed methane drilling[J]. Oil Drilling & Production Technology, 2011, 33(3): 78-81 |
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| Authors: | ZHENG Lihui |
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| Affiliation: | 1.The Key Laboratory of Petroleum Engineering of Ministry of Education, Beijing 102249, China |
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| Abstract: | The bionic fuzzy-ball drilling fluid was developed by imitating bacteria structure.Bionic Fuzzy-ball drilling fluid for underbalance drilling in well CLY-A shows the density of the fluid can range from 0.8 g/cm 3 to 1.0 g/cm 3 and it can be circulated without extra equipments.Compressed air drilling in well CLY-B proves that the different bionic fuzzy-ball additives varying drilling phases such as air,mist,foam and fuzzy-ball drilling fluid can be converted smoothly.Bionic fuzzy-ball drilling fluids for con... |
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| Keywords: | fuzzy-ball drilling fluid coalbed methane drilling engineering application |
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