国内外的钻井实践表明，要达到这个目的，首选精细控压钻井技术。
In order to obtain this aim, the most appropriate technique is delicate managed pressure drilling based on the study from home and abroad.
钻井实践表明，地层因素和钻头类型是影响钻井过程的两个十分重要的因素。
Drilling practice show that formation and bit types are tow important factors effected drilling.
江苏油田真148井的钻井实践证明，利用该方法不但能提高定向准确性而且可降低侧钻成本。
Applications at Zhen 148 Well in Jiangsu Oilfield illustrated that the method not only improves orienting accuracy but also cuts down sidetracking cost.
实践表明，地面钻井对抽放采动区域瓦斯效果较好。
Practice indicated that the surface boreholes have better effect on gas drainage from mining area.
现场实践表明，这种导向技术可以较大幅度地提高钻井效益，缩短建井周期。
Oilfield practices show that this technology can improve drilling rate and shorten well construction period.
实践表明，这种方法便于在钻井现场实施。
Practice shows this method is convenient to carrying out oil tile drilling site.
结合满东2井氮气钻进的工程实践，验证了塔里木油田气体钻井装备配套优化方案的实用性。
Combined with the engineering practice of nitrogen gas well drilling in Mandong-2 well, the utility of optimization program of gas drilling equipment package of Tarim oilfield are verified.
实践和资料说明，罐装泡沫样聚气录井方法是泡沫钻井中气测录井的另一种行之有效的方法。
Practice and results show that the gas survey method with a gas-collecting tank for foam drill fluid samples is another effective method.
初步实践表明，负压钻井技术完全适用于高压低渗地层和低压易漏地层，其效果明显。
The preliminary practices show that underbalanced pressure drilling is completely fit to high pressure and low permeability as well as low pressure and leakage formations.
实践证明，春晓地区推行的钻井项目管理和使用的技术措施是成功的，对进一步提高整体钻井效益将产生重大的作用。
It is proved that drilling project management and technique measures taken in the area is successful, and will play an important role in improving drilling economic benefits.
介绍了气体钻井计算模型的建立及其应用软件的编制，结合现场实践，对气体钻井理论模型进行了分析。
The paper introduces the establishment of calculating model for gas drilling and the programming of the applied software, and analyzes the model for gas drilling theory with field cases.
实践证明，该方法能够快速而准确地实现对钻井地质环境因素的正确认识，并取得了较好的效果。
Demonstrated by the practices, this method can provide a rapid and accurate acknowledgment on the factors of geological environment encountered in the drilling...
平湖油气田预钻井顺利回接的实践证明，平湖钻井基盘和回接辅助结构技术是非常成功的。
The smooth tie-back of pre-drilled wells proves that Pinghu drilling template and all secondary structures for the tie-back are very successful.
实践证明，小眼丛式井比小眼直井钻井效率高，社会效益及经济效益显著。
The applications show that the efficiency of cluster slimhole wells is higher than that of vertical slimhole wells, and that the economic benefits are remarkable.
实践证明，小井眼直井钻具性能评估准则和钻柱动强度条件是正确的，有效地满足了钻井工程需要。
Practical applications show that the standard and dynamic strength conditions are correct and meet the field requirements effectively.
实践证明，小井眼直井钻具性能评估准则和钻柱动强度条件是正确的，有效地满足了钻井工程需要。
Practical applications show that the standard and dynamic strength conditions are correct and meet the field requirements effectively.
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