n. borehole
misc. exploratory hole ; prospect hole ; scout hole
水文地质勘探孔 hydrogeological exploration borehole
勘探钻孔 [地质] exploratory boring ; prospecting bore ; pioneer well
钻孔勘探 drilling exploration ; Drilling hole explore ; drilling explorine
探勘锧孔 trial boring
放射测定钻孔探勘装置 radiometric bore-hole logging assembly
但当根据现场条件确定的钻探剖面与地裂缝呈斜交关系时，勘探孔间距可以适当放大。
But when according to the site conditions determined to crack a drilling section with oblique relations, hole spacing can enlarge exploration.
随着吐哈盆地勘探的进一步深入，低孔、低渗储层是测井解释和储层评价的一个难题。
With the further exploration of Tuha basin, one difficult problem is logging interpretation and reservoir evaluation for low porosity and low permeability reservoir.
高压水射流径向水平孔钻进技术是水平孔施工技术之一，它是在垂直瓦斯抽放或煤层气勘探钻孔布置机械或水力扩孔装置，对准选定的煤层部位进行扩孔。
As one of radial horizontal drilling techniques, high pressure water jet drilling technology is capable of using mechanical or water jet apparatus to make a cavity at the selected coal seam.
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