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- The deep well coal road cable of small diameter hole and high pre-tension structure and craft were studied according to the condition of high stress and composite roof in Fengcheng coal field. 结合丰城矿区高地应力、合顶板等复杂地质条件,研究深井条件下煤巷锚索采用小孔径、加高预应力的结构形式和施工工艺。
- Application of small diameter hole and pre-tension cable technique in open-off cut 小孔径预应力锚索技术在开切眼中的应用
- Application of the Technique of Springing Blasting in Small Diameter Hole to the Roadbed Pitting 小孔径扩壶爆破技术在路堑开挖中的应用
- Spreading and application of the small diameter hole digged manually in the western region of Zhejiang province 浙西地区小直径人工挖孔桩的推广应用
- Mid-depth parallel cut blast technology of small diameter hole in narrow-bore tunnel 小断面隧洞小直径空眼中深直眼掏槽爆破技术
- Gordian technique for separated layer instrument in slim hole. 小直径井下分层治理工具关键技术
- Considering small annular clearance and large hole curvature in slim hole, the nonlinear mechanics analysis of BHA is carried out by gap-element method. 针对小井眼水平井环空间隙小、曲率大的特点,应用间隙元法对下部钻具组合进行了非线性静力学分析;
- small diameter hole 小口径钻孔
- Now this technique is applied in the slim hole drilling in Daqing Oil Field. 目前，此项技术已在大庆油田小井眼钻井中推广应用。
- small diameter hole drilling 小口径钻进
- A crosslinking agent DCL-KB was developed against the characteristic of slim hole fracturing. 根据小眼井的特点和技术要求,研制了可控制交联时间的延迟交联剂DCL-KB,该剂是硼与特殊的配位络合体在常温下合成的,比普通硼砂分子大得多的络合物。
- The development of a whole high - speed steel drill for deep holes applying to medium and small diameter holes 中小孔径整体型高速钢深孔钻头的研制
- The theory of multi-object optimization is used to perform an optimized designation of slim hole drilling parameters. 应用多目标优化理论，对小井眼钻井参数进行了优化设计。
- Since 1995,sidetracking operations have been conducted in Zhongyuan Oilfield,and a set of perfect slim hole sidetracking technology has been formed. 中原油田自1995年以来开始进行了老井开窗侧钻小眼井技术，数年的努力形成了一套完善工艺。
- The coring technology in deep slim hole has been applied in China.It provided dependable core data for exploratory development. 深井小井眼钻井取心技术作为其配套技术,已相继在国内油田应用,为勘探开发提供了可靠的岩心资料。
- Can a smaller diameter fiber be used in the probe? 更小直径的光纤能在探测器中使用吗?
- Smaller diameter slip ring to increase brush life. 集电环减小,延长电刷使用寿命。
- In order to reduce the investment on peripheral stripper wells, the technique of producing oil with slim hole is adopted. 采用小井眼技术进行开采，主要是为解决外围低产油田开发投资大、经济效益差的问题。
- Were the wire of a small diameter ,its resistance would be increased . 如果导线的直径小一些，其电阻就会增加。
- With the low drilling cost,low drillings and low environment pollution,the slim hole drilling has a great development worldwide in recent year. 由于小井眼钻井成本低、排出岩屑体积小,对环境污染小,近几年来在世界范围内得到了大力发展,因此,各种小井眼钻井设备应运而生。
