大排量直井段随钻测斜工具的研制与应用  

Development and Application of Inclination Measurement Tool While Drilling in Vertical Well Sections with High Flow Rate

作　　者：许期聪 陈东 冯思恒 XU Qicong;CHEN Dong;FENG Siheng(Drilling&Production Engineering Technology Research Institute,CNPC Chuanqing Drilling Engineering Company Limited,Guanghan,Sichuan,618300,China)

机构地区：[1]中国石油集团川庆钻探工程有限公司钻采工程技术研究院,四川广汉618300

出　　处：《石油钻探技术》2024年第2期174-180,共7页Petroleum Drilling Techniques

基　　金：中国石油集团科学研究与技术开发项目“万米超深层钻探关键工程技术与装备研制”(编号:2023ZZ20);中国石油集团川庆钻探工程有限公司项目“随钻测斜工具研制”(编号:CQ2022B-13-7-3)联合资助。

摘　　要：为解决深井、超深井上部大尺寸直井段因钻井排量高导致的随钻测斜工具冲蚀严重、故障率及成本高等问题,综合采用扩大过流面积、流场仿真优化及冲蚀剧烈区局部硬质合金保护方法,研制了大流道耐冲蚀旋转阀组;采用加速度计柔性悬浮固定、电路板有机硅灌封胶等多级复合减振方法,提高了随钻测斜工具电子电路的抗振能力;通过设计快速传输编码、低功耗电子电路及节能运行模式,提高了测斜效率与测斜工具的续航能力。通过研制关键部件大流道耐冲蚀旋转阀组,采用不同技术方法提高测斜工具的抗振能力、测斜效率和续航能力,研制了系列尺寸的大排量直井段随钻测斜工具。川渝、新疆等地区的12口井应用该工具随钻监测井斜角,该工具表现出耐大排量冲蚀的能力,最高适用排量达120 L/s,运行稳定可靠,故障率低于0.5次/月,续航可达30 d以上。现场应用结果表明,大排量直井段随钻测斜工具能满足深井、超深井大尺寸直井段随钻测斜的要求,可为深井、超深井获得高质量直井段提供支持。In order to solve the problems of serious erosion,high failure rate,and large cost of inclination measurement tools while drilling due to high drilling flow rate in upper large vertical well sections of deep and ultradeep wells,the methods of expanding the flow area,simulation optimization of flow field,and local carbide protection in the area of intense erosion were comprehensively adopted,and a rotary valve group with large channel and erosion resistance was developed.Multistage composite vibration reduction methods such as flexible suspension fixing of accelerometer and silicone potting adhesive of circuit board were adopted to improve the shock resistance of electronic circuit of inclination measurement tools while drilling.By designing a fast transmission code,electronic circuit with low power consumption,and energy-saving operation mode,the efficiency and endurance of inclination measurement tools while drilling were improved.The key components of the rotary valve group with large channel and erosion resistance were developed,and the shock resistance,inclination measurement efficiency,and endurance of the inclination measurement tools were enhanced by different technical methods.An inclination measurement tool while drilling for vertical wells with a high drilling flow rate was developed.The tool was used to monitor the angle of inclination while drilling in 12 wells in Sichuan,Chongqing,and Xinjiang regions and showed the ability to withstand erosion due to the high flow rate.The maximum applicable flow rate of the tool reached 120 L/s,and the operation was stable and reliable.The failure rate was less than 0.5 times/month,and the battery could work for more than 30 days.The field application shows that the inclination measurement tool while drilling for vertical well sections with a high flow rate can meet the requirements of inclination measurement while drilling in large vertical well sections of deep and ultra-deep wells,providing support for obtaining high-quality vertical well sections of deep and ul

关 键 词：随钻测斜 深井 超深井 大排量 耐冲蚀 旋转阀 流场 模拟 

分 类 号：TE927[石油与天然气工程—石油机械设备]