摘要
可变径稳定器配合螺杆钻具可实现造斜率的调节。设计了基于排量控制外径的可变径稳定器,主要包含3个推力活塞各自驱动的巴掌。推力活塞在钻柱内外压差作用下将巴掌推出,稳定器直径变大;通过调节排量来控制滑阀的轴向运动,从而控制内外压差通道的开关。加工可变径稳定器并进行了测试,通过调节排量可有效控制巴掌的伸出、收回,巴掌的推靠力达到34.75 kN,滑阀密封耐温超过150℃,达到了入井的要求。
Variable diameter stabilizer combined with the downhole motor can achieve the adjusting of the build-up capacity.A variable diameter stabilizer based on displacement control was designed,which includes three palms driven by pistons.The piston pushes out the palm under the action of the pressure difference between the inside and outside of the drill string,and the diameter of the stabilizer becomes larger.The axial movement of the slide valve is controlled by adjusting the displacement,to control the switch of the differential pressure channel.The variable diameter stabilizer was produced and tested.Through the adjusting displacement,the extension and retraction of the palm can be effectively controlled,the pushing force of the palm can reach 34.75 kN,and the temperature resistance of the slide valve seal exceeds 150℃,which meets the requirements of entering the well.
作者
郑德帅
韩霞
丁鹏
杨冬
栗国浩
ZHENG Deshuai;HAN Xia;DING Peng;YANG Dong;LI Guohao(Sinopec Research Institute of Petroleum Engineering,Beijing 102260,China;Tianjin Zhengfang Technology Development Co.,Ltd.,Tianjin 300270,China;Bohai Petroleum Equipment Manufacturing Co.,Ltd,,Tianjin 300280,China;Machinery Manufacturing Plant,Changqing Oilfield Company,Xi’an 710201,China;China Oilfieed Services Ltd.,Sanhe 065201,China)
出处
《石油矿场机械》
CAS
2022年第2期44-48,共5页
Oil Field Equipment
基金
国家科技重大专项“海上复杂地层安全快速钻完井关键技术”(2016ZX05033-004)。
关键词
螺杆钻具
稳定器
外径
轨迹控制
排量
downhole motor
stabilizer
diameter trajectory control
displacement