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在取芯钻井井段，选用金刚石取芯钻头。Diamond coring bits are utilized for core drilling.

煤层颗粒疏松、岩心成柱性差，给取心工作带来了极大困难。Coring operation in coal seams is very difficult as they are very loose.

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地质勘探钻井用套管和岩心管及其内接头技术条件。GOST 6238Casing and coring tubes for geology-exploring drilling and nipples to them.

生存于质量，核心于管理，搏击于市场，决胜于品种。Surviving in quality, coring in management, struggling in market and winning in breed.

适用于高等硬度及研磨性的地层取芯，取芯收获率高。Suitable for coring in very hard formation with abrasiveness . Core recovery rate is high.

适用于带研磨性的中硬地层取芯，取芯收获率高。Suitable for coring in medium hard formation with abrasiveness . Core recovery rate is high.

绳索取芯钻具是一种不提钻而从钻杆内捞取岩芯的钻进工具。Wire-line core drilling tools can lift core from drill rods without picking up coring system.

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煤成气井取心要求高收获率、尽可能短的提钻时间和出筒与装罐时间。Keys of coring in CBM wells are high recovery, short trip out time and more quickly to be held.

对与煤层气井用绳索取心钻具配套使用的地面升降装置要求提升能力足、提升速度快。The ground lifting machine for coal seam gas coring drill is required to be speedy and powerful.

介绍了SYZX75型绳索取心液动潜孔锤的工作原理及结构特点。Working principle and structural features of SYZX75 wire-line coring hydro-hammer are presented.

当取心钻具采用绳索取心钻具时，钻进所用的钻头就需要用绳索取心钻头。Wire-line coring bits should be used as bits for drilling, while coring tool is wire-line barrel.

塔里木油田首次在TZ4—36—16定向井斜井段采用双简取芯技术并获得成功。Dual coring techniques were first successfully adopted in directional Well TZ436-16, Tarim Oilfield.

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采用空心包体套孔应力解除方法，进行现场地应力测量。Over coring method by using hollow inclusion strain cells is applied for in-situ stress measurement.

复杂地层的钻进与取样问题一直是钻探行业的一个技术难题。There are lots of drilling and coring difficulties for exploration engineering in complex formations.

加深井钻进，用双心钻头可增大环空间隙，提高固井质量。Higher core recovery is assisted in coring operations when this kind of bit is used for hole enlargement.

他们沉降下去网、挖掘机、深海温度测量器、静态照相机、水瓶、以及取心钻管和测流计。They lowered nets, dredges, bathythermographs, still cameras, water bottles, coring pipes, and current meters.

根据科学钻探对岩心的特殊要求，认为金刚石取心钻头是科学深钻取心钻进较理想的选择。Diamond core bit is preferred for coring operation in terms of the special requirements of scientific drilling.

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非取芯井的孔隙度能使用邻近井的反褶积因子确定，精度不低于数理统计方法的结果。The porosity of non -coring well can be determined using the deconvolution factors of its adjacent coring wells.

孔隙度直接定量测量的可信度取决于取心所得地层的岩样。For direct quantitative measurement of porosity, reliance must be placed on formation samples obtained by coring.

我们位在冰河不同地区的核心，这个核心能让我们测量雪量累积的高度。We are coring at different sites on the glacier. This coring enables us to measure the height of accumulated snow.