slim hole

基本解釋

Technical measures are put forward to improve economic benefit in the case of slim hole filling pile construction.
通過科學、合理的施工，可提高小口徑鉆孔灌注樁工程的經(jīng)濟效益。
Considering small annular clearance and large hole curvature in slim hole, the nonlinear mechanics analysis of BHA is carried out by gap-element method.
針對小井眼水平井環(huán)空間隙小、曲率大的特點，應用間隙元法對下部鉆具組合進行了非線性靜力學分析；
Slim hole drilling technology can be used to recover the low permeability poor reservoirs efficiently, as the conventional development method costs too much and produces little profits.
為解決我國大量低滲透、低豐度儲量無法動用的問題，近年來分別在大慶、吉林和長慶等油田分公司開展了小井眼鉆井技術的研究與試驗工作。

Next come slim-hole wells, which help determine the economic viability of a project and define indicated resources.
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小井眼
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.
小井眼的窄間隙幾何特性決定了小井眼環(huán)空壓耗大,鉆柱偏心、鉆柱旋轉、鉆具接頭和井壁粗糙度等對環(huán)空壓耗的影響有其特殊性,使得常規(guī)的水力參數(shù)優(yōu)化設計方法不能完全適用。