According to the problems occurred during the first stage of five well drillings in qianmiqiao qianshan structure , technical measures , such as optimal well configuration , bottom hole assembly , bit type and drilling fluid were taken during the second stage of another five deep drillings and better results were achieved . it is helpful to explore and develop in qianmiqiao qianshan structure in dagang oilfield 分析了千米桥潜山构造第一阶段5口井施工过程中遇到的技术难题,从优化井身结构、优选钻具组合、钻头优选、优选钻井液体系及组织管理等方面给出了相应的技术措施和对策,并在第二阶段5口井的施工中进行了应用,且取得了明显的效果,为大港油田千米桥潜山构造的勘探开发奠定了坚实的基础。
Abstract : according to the problems occurred during the first stage of five well drillings in qianmiqiao qianshan structure , technical measures , such as optimal well configuration , bottom hole assembly , bit type and drilling fluid were taken during the second stage of another five deep drillings and better results were achieved . it is helpful to explore and develop in qianmiqiao qianshan structure in dagang oilfield 文摘:分析了千米桥潜山构造第一阶段5口井施工过程中遇到的技术难题,从优化井身结构、优选钻具组合、钻头优选、优选钻井液体系及组织管理等方面给出了相应的技术措施和对策,并在第二阶段5口井的施工中进行了应用,且取得了明显的效果,为大港油田千米桥潜山构造的勘探开发奠定了坚实的基础。
Because of the merit of continuity , economical efficiency , reliability and high resolution , the well logging has shown its advantages , especially in some drilling engineering problem , such as the prediction of rock drillability , selecting the drill bit types , prediction of formation pressure , calculation the in - situ stress , evaluating the borehole walls stability and determining the reasonable mud density , and etc . aiming at the engineering accidents , for example the well spout , well leak , well collapse and the drill blocking during the drill engineering in the t formation in north - east of sichuan , some farther studies of formation pressure in feixianguan from well - logging information are presented in this dissertation 尤其是在岩石可钻性预测与钻头选型、地层压力预报、地应力计算以及井壁稳定性评价、泥浆密度安全窗确定等钻井工程问题上。测井技术由于连续性、经济性、可靠性及分辨率高等特点,越来越多地显示了其优越性。本文针对川东北部三叠系地层在钻井过程中遇到的井喷、井漏、井塌和卡钻等工程事故,主要对飞仙关组地层压力的测井解释方法作了大量的深入研究工作。