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- According to the sloughing mechanism，the optimum drilling technique and the optimum formulation of polyalcohol-KCl drilling fluid for coalbed were achieved. 煤岩自身的强度较低，吸水后强度会进一步下降，浸泡液类型和围压对煤岩强度有很大的影响。
- optimum drilling techniques 优快钻井
- optimum drilling technique 优化钻井技术
- Core drilling techniques are used when precise, circular cuts are needed. 当使用精确的钻探技术,需要削减圆。
- The model can be used to determine formation pore pressure and the optimum drilling fluid density to stabilize borehole. 利用该模型可确定地层孔隙压力和保持井眼稳定的最优钻井液密度等参数。
- In this paper,presents the principles and methods to define optimum drilling interval for in-situ leaching and discusses some problens related to optimum drilling. 提出了确定地浸钻孔最佳间距的原则和方法，论述了与最佳间距有关的问题。
- The paper introduces the application of continuous controlling drilling techniques in Du 84 Block of Shuguang Oilfield. 介绍了连续控制钻井技术在曙光油田曙一区杜84块定向井施工中的应用情况。
- The application result of diamond drilling techniques in Huanglong Coalfield is analyzed emphatically in the paper. 分析了黄陇煤田大佛寺井田金刚石单管和双管取心及绳索取心钻井技术应用效果;
- By the accumulation of practice experience and adjustment of technical parameter and confect measure, this drilling techniques get perfectly. 槽河渡槽是南水北调中线工程河北省段最大的建筑物,河床段卵石层深厚且含砂量小,钻探取样难度极大;
- In order to raise integral development efficiency,the horizontal drilling techniques have been applied in Sulige region of Changqing Gas Field. 为提高整体开发效率,在长庆气田苏里格区块应用了水平井钻井技术。
- The lack of deepwater drilling techniques is one of the factors restricting deepwater oil and gas exploration and development. 摘要深水钻井技术是制约深海油气勘探开发的主要因素之一。
- Secondly, carry out methods of education and drilling simultaneously, educate criteria of battalion and family, drill techniques and marshaling. 二是实行“训”与“练”兼施之法，训营规，训家规，练技艺，练陈法；
- Application of MTC cementing techniques in shallow gas well in Baoshan[J].Petroleum Drilling Techniques,2002,30(6):29-31. MTC固井技术在保山浅层气井的应用[J].;石油钻探技术;2002;30(6):29-31
- Analysis is made on the drilling techniques to the slurry retaining wall applied for the stake foundation in ports, and given the countermeasures. 通过港口码头桩基础工程的泥浆护壁成孔工艺分析，提出解决在钻孔过程中对流沙及大颗粒卵石悬浮排清问题的方法。
- A good way to help you to improve drilling technique is to use a jet bit. 能帮助你们改进钻井技术的一种好方法是使用喷射式钻头。
- The paper introduced the use of airlifting reverse circulation rotary drilling techniques in practice of major diameter socket pile operation at Xiangfan city s Hanjiang No. 介绍了使用泥浆护壁气举反循环回转钻进工艺进行襄樊汉江四桥大口径嵌岩桩的施工实践。
- Optimum drilling with the help of the drilling field database 借助于钻探现场数据库进行最优化钻进
- The Application And Experimentation Prospect for DaTong coalfield to resource of Permo-carboniferous period By Air drilling, Foam drilling, DTH hammer drilling with experience of drilling techniques. 摘要通过对空气钻进、空气泡沫钻进工艺和空气潜孔锤钻进工艺的生产试验和推广应用，为大同煤田石炭、二叠纪煤炭资源勘探探索钻探施工的成功经验。
- Also, studied key techniques about grouting in loosen rock mass, such as drilling technique, collaring sealing technique and so on. 并对松散体注浆工艺中的成孔技术、孔口封堵技术等关键技术问题进行了研究,这些问题的解决保证了松散体注浆工程的顺利进行。
- The market offer optimum condition for sale. 市场为销售提供了最佳条件。
