ultra-slim hole rig 超小井眼钻机
slim hole joint 小眼接头
slim-hole rig 小井眼钻机
slim hole drilling 小井眼钻井 ; 小井眼钻井技术
slim hole completion 小井眼完井
slim hole tool 小井眼下井仪
The annulus pressure-loss of slim-hole drilling is higher than general drilling due to its narrow annulus. During calculating pressure-loss, the effects of drilling pipe joints, drilling string rotation, eccentricity and borehole wall roughness must be considered.
小井眼的窄间隙几何特性决定了小井眼环空压耗大,钻柱偏心、钻柱旋转、钻具接头和井壁粗糙度等对环空压耗的影响有其特殊性,使得常规的水力参数优化设计方法不能完全适用。
参考来源 - 小井眼钻井水力参数设计·2,447,543篇论文数据，部分数据来源于NoteExpress
Through a comparison, the economic benefit in slim-hole drilling for coalbed gas has been analyzed.
通过与常规煤层气试验井对比，分析了煤层气小井眼钻井的经济效益。
Especially the perforating technology in the exceptional horizontal Wells such as slim-hole casing Wells, large hole Wells and complex Wells is detailed.
着重介绍了水平井射孔技术在小井眼、大井眼及复杂井况条件下特殊井中的技术要求和特点。
How to improve the quality of slim hole cementing is a difficult problem of perplexing well drilling.
如何提高小井眼固井质量是困扰钻井行业多年的老问题。
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