1、 毕业设计（论文）毕业设计（论文） 题目：题目： 欠平衡钻井技术欠平衡钻井技术研究研究 姓姓 名：名： 专专 业：业： 石油工程石油工程 学学 院：院： 继续教育学院继续教育学院 学习形式：学习形式： 助学单位：助学单位： 指导教师：指导教师： 20132013 年年 1212 月月 I 摘摘 要要 欠平衡钻井是国际上 90 年代初再次兴起的提高勘探开发效益的钻井新技术。近几年我国来在 油、气田勘探开发方面已进行了大量技术研究和现场试验，并取得了显著的成果。欠平衡钻井的相 关理论和技术研究已经成为钻井工作者的一个研究热点。 本文介绍了欠平衡钻井技术国内外的发展状况，实施欠平衡钻井的优缺点。分析
2、和总结了欠平 衡钻井相关理论研究成果，为技术的应用提供理论依据。关键技术从三个方面入手：在考虑了影响 负压值各方面的因素后，提出了合理的设计程序；通过计算出的钻井液密度选择适应于实际条件的 最优钻井液类型；分析了井底压力波动和气侵后的环空压力变化，给出了一些井底压力控制措施。 最后介绍了欠平衡钻井的信息采集处理系统， 通过全过程的监测和指导保证欠平衡钻井的安全进行 关键词：关键词：欠平衡；钻井液；信息采 II AbstractAbstract Underbalanced drilling is the international at the beginning of the 90s the
3、rise once again improve the benefit of exploration and development of new drilling technology. In recent years, our country in the exploration and development of oil and gas field, has done a lot of research and field test, and achieved remarkable results. Related theory and technology research of u
4、nderbalanced drilling has become a research hotspot in drilling workers. This paper introduces the development status of balanced drilling technology at home and abroad, the advantages and disadvantages of underbalanced drilling. Analyzes and summarizes the relevant research results of underbalanced
5、 drilling, and provide a theoretical basis for the application of technology. The key technology from three aspects: in consideration of various factors influencing the value of negative pressure, the reasonable design program; the drilling fluid density calculated to select the optimal drilling flu
6、id types suitable for actual conditions; analyzed the change of the annulus pressure bottomhole pressure fluctuation and after intruding, gives some bottom hole pressure control measures. Finally introduced the underbalanced drilling information acquisition and processing system, through monitoring and guiding the whole process to
