| 白-21井负压钻井井段的钻井液技术 |
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| 引用本文： | 陈全.白-21井负压钻井井段的钻井液技术[J].钻井液与完井液,1997(4). |
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| 作者姓名： | 陈全 |
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| 作者单位： | 中原石油勘探局钻井二公司 河南濮阳 |
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| 摘 要： | 白-21井是中原油田第一口深层气探井,井深4190m。该井四开井段实施负压钻井、边喷边钻技术,在国内尚属首例。在负压钻井施工中采用了M941无机阳离子聚合物钻井液体系。介绍了M941钻井液的配制和维护处理工艺,以及体外循环和放喷下钻划眼的钻井液工艺。M941无机阳离子聚合物钻井液及其工艺技术,满足了白-21井负压钻井的施工要求。实施负压钻井时应充分考虑地层条件和负压的程度,采用粘度和切力低、动塑比高、防塌能力强的钻井液体系,严格控制钻井液体系的pH值小于9。
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| 关 键 词： | 聚合物钻井液 深井钻井 负压钻井 防塌 |
Drilling fluid technology: underbalanced drilling of Bai-21 well |
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| Chen Quan,No. Drilling Company of Zhongyuan Petroleum Exploration Bureau,Puyang,Henan Province.Drilling fluid technology: underbalanced drilling of Bai-21 well[J].Drilling Fluid & Completion Fluid,1997(4). |
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| Authors: | Chen Quan No Drilling Company of Zhongyuan Petroleum Exploration Bureau Puyang Henan Province |
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| Affiliation: | Chen Quan,No. 2 Drilling Company of Zhongyuan Petroleum Exploration Bureau,Puyang,Henan Province |
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| Abstract: | Underbalanced drilling technology is adopted in Bai-21 well, the first deep gas exploration wellin Zhongyuan oil field. To solve the problems encountered in drilling operation, such as wall sloughing, well kick and stucking, etc. , M941 inorganic cationic polymer drilling fluid (the dosage of M941 should be 0. 2-0. 3%) is used. The formulation, maintenance method of the said drilling fluid and some drilling fluid technology used are introduced. |
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| Keywords: | Polymer Mud Differential Pressure Hole Stabilization |
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