伊通地区复合钻井技术应用研究
发布时间：2019-01-03 06:57
【摘要】：伊通地区具有储层埋藏深、目的层可钻性差、地层倾角大、储层敏感性强等特点,在钻井过程中一方面会制约钻井速度,另一方面还会影响井眼轨迹的准确性。PDC钻头+螺杆钻具的复合钻井技术不仅能够适应高转速的特点,使钻头转速大幅度提高,大大提高了钻速,还能用于防斜、纠斜、增斜及稳斜等方面,达到精确控制井眼轨迹的目的。因此,伊通地区在钻井过程中出现的问题可以采用复合钻井技术进行解决,满足该地区油田生产的需要。根据研究目的,本文共有4部分内容。第一部分:开展了伊通地区地质条件的研究,钻井工程受地质条件及岩石性质影响较大,因此该部分主要包括基本地质概况、区域内岩石粒度特征及岩石矿物成分特征;第二部分:开展了伊通地区PDC钻头和螺杆钻具的优选工作,主要包括伊通地区PDC钻头优选方法研究和伊通地区螺杆钻具优选评价方法研究;第三部分:开展了井眼轨迹精确控制技术研究,由于直井段与定向井段井眼控制技术存在较大的差别,因此分别开展了直井段及定向井段井眼轨迹控制技术;第四部分:复合钻井技术在伊通地区的实用性研究。通过本文研究,优选出了适用于伊通地区的复合钻井钻具组合,既提高了钻井速度又解决了井眼轨迹控制不精确的问题;根据伊通地区岩石的力学性能和已钻钻头资料,优选出了适合伊通地区的PDC钻头;针对直井段井眼轨迹控制技术,提出了单弯螺杆钻具组合防斜打快这一技术;根据定向井段井眼轨迹控制基本原则,结合伊通地区地层的岩性的垂向特征,设计出适合各井段的钻具组合。在伊通地区适用性研究中发现,复合钻井技术在该区块取得了明显的效果,实现了快速精准钻井的目的。
[Abstract]:The Yitong area is characterized by deep reservoir burial, poor drillability of the target layer, large dip angle and strong reservoir sensitivity. On the one hand, the drilling speed will be restricted in the drilling process. On the other hand, it will affect the accuracy of borehole trajectory. The compound drilling technology of PDC bit screw drilling tool can not only adapt to the characteristics of high rotational speed, but also improve the drilling speed greatly, and can also be used to prevent deviation and correct deviation. In order to control the trajectory of borehole accurately, the angle increasing and stabilization are achieved. Therefore, the problems in the drilling process in Yitong area can be solved by using compound drilling technology to meet the needs of oilfield production in Yitong area. According to the purpose of the research, there are four parts in this paper. The first part is the research of geological conditions in Yitong area. The drilling engineering is greatly affected by geological conditions and rock properties, so this part mainly includes the basic geological situation, the characteristics of rock granularity and rock mineral composition in the area. The second part: the optimization of PDC bit and screw drill tool in Yitong area is carried out, including the research of PDC bit selection method in Yitong area and the evaluation method of screw drill tool selection in Yitong area. The third part: the research of borehole trajectory control technology is carried out. Due to the big difference between the vertical and directional well trajectory control technology, the vertical and directional well trajectory control technology is developed respectively. The fourth part: the practicability research of compound drilling technology in Yitong area. Through the research in this paper, the combination of drilling tools suitable for Yitong area is selected, which not only improves the drilling speed but also solves the problem of inaccuracy of hole trajectory control. According to the rock mechanical properties of Yitong area and the data of drill bit, the PDC bit suitable for Yitong area is selected, and aiming at the control technology of borehole trajectory in straight well section, the technology of single bend screw drilling tool combination to prevent deviation and beat fast is put forward. According to the basic principle of hole trajectory control in directional well section and the vertical characteristics of formation lithology in Yitong area, the drilling tool combination suitable for each section is designed. In the study of applicability of Yitong area, it is found that compound drilling technology has achieved obvious results in this area and achieved the goal of rapid and accurate drilling.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE242
本文编号：2399038
[Abstract]:The Yitong area is characterized by deep reservoir burial, poor drillability of the target layer, large dip angle and strong reservoir sensitivity. On the one hand, the drilling speed will be restricted in the drilling process. On the other hand, it will affect the accuracy of borehole trajectory. The compound drilling technology of PDC bit screw drilling tool can not only adapt to the characteristics of high rotational speed, but also improve the drilling speed greatly, and can also be used to prevent deviation and correct deviation. In order to control the trajectory of borehole accurately, the angle increasing and stabilization are achieved. Therefore, the problems in the drilling process in Yitong area can be solved by using compound drilling technology to meet the needs of oilfield production in Yitong area. According to the purpose of the research, there are four parts in this paper. The first part is the research of geological conditions in Yitong area. The drilling engineering is greatly affected by geological conditions and rock properties, so this part mainly includes the basic geological situation, the characteristics of rock granularity and rock mineral composition in the area. The second part: the optimization of PDC bit and screw drill tool in Yitong area is carried out, including the research of PDC bit selection method in Yitong area and the evaluation method of screw drill tool selection in Yitong area. The third part: the research of borehole trajectory control technology is carried out. Due to the big difference between the vertical and directional well trajectory control technology, the vertical and directional well trajectory control technology is developed respectively. The fourth part: the practicability research of compound drilling technology in Yitong area. Through the research in this paper, the combination of drilling tools suitable for Yitong area is selected, which not only improves the drilling speed but also solves the problem of inaccuracy of hole trajectory control. According to the rock mechanical properties of Yitong area and the data of drill bit, the PDC bit suitable for Yitong area is selected, and aiming at the control technology of borehole trajectory in straight well section, the technology of single bend screw drilling tool combination to prevent deviation and beat fast is put forward. According to the basic principle of hole trajectory control in directional well section and the vertical characteristics of formation lithology in Yitong area, the drilling tool combination suitable for each section is designed. In the study of applicability of Yitong area, it is found that compound drilling technology has achieved obvious results in this area and achieved the goal of rapid and accurate drilling.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE242
【参考文献】
相关期刊论文 前2条
1 李萌;于兴胜;罗西超;黄衍福;刘凤;王宇鹏;;螺杆钻具的前沿技术[J];石油机械;2011年09期
2 董国昌,庞晓东,孙博;英台地区PDC钻头优选与应用[J];西部探矿工程;2003年09期
，本文编号：2399038
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