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常规取心工具在定向井中应用的可行性分析
引用本文:任攀攀,陈晓琳,林修阔. 常规取心工具在定向井中应用的可行性分析[J]. 探矿工程, 2009, 36(3): 7-8
作者姓名:任攀攀  陈晓琳  林修阔
作者单位:[1]中国地质大学北京,北京100083; [2]中国地质科学院勘探技术研究所,河北廊坊065000
摘    要:通过对岩心收获率影响因素的分析,认为常规取心工具可以在定向井取心中应用,但是岩心收获率要比直井低,并且随井眼弯曲强度的增大而降低。进一步分析并提出提高定向井取心收获率的方法,为定向井取心工具的研制提供了依据;引用国内外已有的钻井文献证明了以上结论。

关 键 词:取心工具  岩心收获率  定向井  可行性
收稿时间:2008-12-02

Feasibility Analysis on Application of Conventional Coring Tools in Directional Well
REN Pan-pan,CHEN Xiao-lin and LIN Xiu-kuo. Feasibility Analysis on Application of Conventional Coring Tools in Directional Well[J]. Exploration Engineering:Rock & Soil Drilling and Tunneling, 2009, 36(3): 7-8
Authors:REN Pan-pan  CHEN Xiao-lin  LIN Xiu-kuo
Affiliation:REN Pan-pan, CHEN Xiao- lin , LIN Xiu-kuo ( 1. China University of Geosciences, Beijing 100083, China; 2. The Institute of Exploration Techniques, Langfang Hebei 065000, China)
Abstract:Conventional coring tools can be used for directional drilling according to the analysis on the factors that can affect the core recovery. But core recovery is lower than vertical well, and even lower with borehole curvature increasing. The paper puts forward the technology of improving core recovery of directional well by further analysis and provides the basis for development of directional coting tools. Drilling data both at home and abroad proved the conclusion above.
Keywords:coring tools  core recovery  directional drilling  feasibility
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