| 1. | A method for designing casing program in deep and superdeep wells
深井和超深井钻井井身结构设计方法 |
| 2. | Drilling techniques for deep and ultra - deep wells in zhongyuan oilfield
中原油田深井超深井钻井技术 |
| 3. | Deep rock mechanics and deep or ultra - deep well drilling technology
深部岩石力学与深井钻井技术研究 |
| 4. | Status quo and faced challenges of deep well drilling techniques of petrochina
中石油深井钻井技术现状与面临的挑战 |
| 5. | Drilling technologies for accelerating the deep well drilling in the buried hill reservoirs of qianmiqiao
提高千米桥潜山深井钻井速度配套技术 |
| 6. | Probing and practice of acid fracturing technology used for qianmiqiao buried hill condensate reservoirs in dagang
千米桥潜山构造深井钻井技术 |
| 7. | Technical challenges and solutions of drilling fluid techniques in deep and ultra - deep wells in tahe oilfield
塔河油田深井超深井钻井液技术难点与对策 |
| 8. | Take an example , the gage protection of a bit is becoming more and more important in it ' s application with the development of horizontal well drilling technology and that of deep well drilling technology
比如，随着水平井、深井钻井技术的发展，钻头的保径在钻头的应用中越来越重要。 |
| 9. | Based on the dynamics , a mechanical model calculating the drill string ' s eccentric wear is established , the approximation equation calculating the positive pressure on casing / drill string is derived out , and the major factors affecting the eccentric wear are analyzed
针对深井钻井中的井口附件套管偏磨问题，以动力学为基础，建立了钻柱偏磨力学模型，推导出了套管钻柱正压力的近似计算公式，分析了影响偏磨的主要因素。 |
