摘要
暂堵转向工艺是多簇射孔簇开启的有效方法,而投球器是实施暂堵转向工艺的关键设备之一。现有页岩气开发采用的液动旋塞投球器无法多次定量精准投球,无法满足当前现场需求。面对这个问题,研制了一种高压远程控制投球器,采用螺旋投球原理实现精确计数,采用侧装动力总成和分体式顶盖总成便于拆装,可实现140 MPa承压能力、多次精准投球、装球数量大,且操作简单。暂堵转向压裂用远程控制投球器经厂内和现场测试,完全满足140 MPa承压能力、多次精准投球、装球数量大。经过多次现场应用,验证了新型投球器具有密封可靠、精确投球、操作简单、运行安全可靠等优点,满足了国内超高压堵塞球分层压裂工况的使用要求,可全面替代现有的液动旋塞阀投球器。
The temporary plugging and turning process represents an effective methodology for the opening of multiple clusters of perforations.The ball injector constitutes a pivotal piece of equipment for the implementation of the aforementioned process.The existing hydraulic rotary plug ball injector utilized in shale gas development is unable to accurately and quantitatively throw balls on multiple occasions,which is inadequate to meet the demands of on-site operations.In response to this challenge,a high-pressure remote control ball injector has been developed,which employs the spiral ball injector principle to achieve precise counting.The apparatus is equipped with a side-mounted power assembly and a split-type top cover assembly,facilitating disassembly and assembly.It is capable of withstanding a pressure capacity of 140 MPa,and is designed with multiple precise ball injectors and a large number of balls to be loaded.The operation is simple,and the remote control ball injector for temporary blocking and turning fracturing has been tested in a controlled setting and in a real-world context.It has demonstrated the capacity to achieve a pressure of 140 MPa,facilitate multiple precise ball injections,and accommodate a substantial number of balls.Following a series of on-site trials,it has been demonstrated that the new ball injector model exhibits a number of advantages,including reliable sealing,precision,straightforward operation,and a high degree of safety and reliability.The new device meets the requirements of domestic ultra-high pressure blockage ball layered fracturing conditions and can fully replace the existing hydraulic plug valve ball injector.
作者
刘晓旭
任勇
张宏桥
齐天俊
王志喜
王德贵
吴小雄
王前敏
LIU Xiaoxu;REN Yong;ZHANG Hongqiao;QI Tianjun;WANG Zhixi;WANG Degui;WU Xiaoxiong;WANG Qianmin(Baoji Oilfield Machinery Co.,Ltd.,Baoji,721002,China;Downhole Technology Operation Company of CNPC Chuanqing Drilling Engineering Co.,Ltd.,Chengdu 610500,China;China National Oil and Gas DrillingEquipment Engineering Technology Research Center Co.,Ltd.,Baoji 721002,China)
出处
《石油矿场机械》
CAS
2024年第5期71-75,共5页
Oil Field Equipment
基金
中国石油集团油田技术服务有限公司科研攻关项目“深层页岩气体积压裂关键技术研究与应用”(2022T-002-001)
中国石油天然气集团有限公司科学研究与技术开发项目“大功率智能电驱压裂装备关键技术研究”(2022DJ4507)。
关键词
暂堵转向
远程控制
螺旋输送
高压投球器
temporary blocking steering
remote control
screw conveyor
high-pressure injector
