Analysis and Field Testing by Remote Control of the Action of a Variable Diameter Stabilizer
-
摘要: 由于遥控变径稳定器存在状态信号不可靠的问题,导致该类稳定器的状态有时无法辨识.为了研究影响该类稳定器状态信号的相关因素,针对其结构特点,根据液体不可压缩和物体受力平衡原理,对该类稳定器在地面和井下两种环境下的变径动作进行了分析,并利用现场试验进行了部分验证.该类稳定器依据MWD仪器提供的井斜信号进行状态控制,并利用相邻两次开泵的泵压差值确定其工作状态.分析认为,该类稳定器内平衡活塞出现上限、下限位置对其变径动作行程有减小的作用.现场试验发现,该类稳定器状态转换遵循控制活塞伸出与平齐的循环规律,活塞伸出泵压大于活塞平齐泵压,相邻泵压绝对差值约1.0 MPa,该类稳定器状态由第二次开泵时的泵压值判断其工作状态.研究表明,该类稳定器内平衡活塞出现上限、下限位置会导致状态信号减弱或无信号;利用相邻两次开泵泵压差值确定其状态的方法可靠,可为地面遥控稳定器提供依据.Abstract: The remote-control variable diameter stabilizer developed is unreliable in the state signal,resulting in the fact that its state cannot be identified.In order to identify relevant factors affecting the state signal,the stabilizer action was analyzed for changing its diameter under both surface and downhole conditions based on the principle of liquid incompressibility and force equilibrium.Later,combined with its structural characteristics,the result of the analysis was partially verified by field test.The stabilizer can achieve state control by using well deviation signal from the MWD instrument and determine the working state by analyzing the pump pressure difference between two adjacent pump startups.The result of the analysis suggested that the upper and lower position limits of balance piston inside the stabilizer can reduce the action stroke for changing diameter.The field test showed that the state change of the stabilizer conforms to the changing regularity of controlling piston extension and alignment,the pump pressure on piston extension is higher than that of piston alignment,and the absolute difference of adjacent pump pressure is about 1.0 MPa.The working state of the stabilizer can be determined based on the pump pressure value of the second pump startup.The research results showed that,the upper and lower limits of the balance piston position inside the stabilizer would result in a weak state signal or no signal.The method to determine the stabilizer state according to pressure difference between two adjacent pump startups is reliable,and can provide the basis for remote control of stabilizer on the ground.
-
Keywords:
- remote control /
- variable diameter stabilizer /
- hole trajectory /
- state signal
-
-
[1] Lawrence L,Stymiest J,Russell R.Adjustable-gauge stabilizer in motor provides greater inclination control[J].Oil Gas Journal,2002,100(7):37-41.
[2] 祝效华,刘少胡,聂荣国,等.KWQ-216型地面可控井下变径稳定器[J].石油钻采工艺,2011,33(1):120-122. Zhu Xiaohua,Liu Shaohu,Nie Rongguo,et al.KWQ-216 surface controlled downhole variable diameter stabilizer[J].Oil Drilling Production Technology,2011,33(1):120-122. [3] 肖仕红,梁政.旋转导向钻井技术发展现状及展望[J].石油机械,2006,34(4):66-70. Xiao Shihong,Liang Zheng.Development status and prospect of the rotary steerable drilling technology[J].China Petroleum Machinery,2006,34(4):66-70. [4] 张明江,彭新明.TRACS可调变径稳定器的使用情况[J].石油钻采工艺,1998,20(增刊1):52-59. Zhang Mingjiang,Peng Xinming.Application of TRACS adjustable stabilizer[J].Oil Drilling Production Technology,1998,20(supplement 1):52-59. [5] 赵小充,金学智.可变径稳定器在定向钻井中的有效应用[J].国外石油机械,1996,7(4):14-18. Zhao Xiaochong,Jin Xuezhi.The effective application of the variable diameter stabilizer in directional drilling[J].Foreign Petroleum Machinery,1996,7(4):14-18. [6] 巩同标.遥控变径稳定器在胜利油田钻井中的应用[J].石油钻探技术,2007,35(6):82-84. Gong Tongbiao.Application of remote controlled variable-gauge-stabilizer in Shengli Oilfield[J].Petroleum Drilling Techniques,2007,35(6):82-84. [7] 刘英辉,苏义脑,汪海阁,等.井下机液控制变径稳定器的设计与改进[J].河南石油,2000,14(3):29-30,61. Liu Yinghui,Su Yinao,Wang Haige,et al.Design and improvement of downhole mechanical-hydraulic control variable diameter stabilizer[J].Henan Petroleum,2000,14(3):29-30,61. [8] 林雅玲,马汝涛,任荣权.井下节流杆机构设计及其使用条件[J].石油机械,2013,41(8):76-80,93. Lin Yaling,Ma Rutao,Ren Rongquan.Design of downhole throttle lever mechanism and its service conditions[J].China Petroleum Machinery,2013,41(8):76-80,93. -
期刊类型引用(4)
1. 车卫勤，杜晶，郭子枫，赵小勇，傅余，李宝鹏. 脉冲位置编解码方式映射模型及效率分析. 油气田地面工程. 2024(02): 78-84 . 
百度学术
2. 张浩，刘维凯，李光明，白婷婷，徐文. 智能测井背景下差分曼彻斯特编码的应用研究. 当代化工. 2021(06): 1455-1458 . 百度学术
3. 齐中华. MWD定向仪器信号的干扰分析及排除探讨. 石化技术. 2020(08): 139+145 . 百度学术
4. 刘天时，魏雨，赵越，邱彬. 随钻脉冲曼码信号处理研究. 传感器与微系统. 2016(02): 29-32 . 百度学术
其他类型引用(7)
计量
- 文章访问数: 3262
- HTML全文浏览量: 69
- PDF下载量: 3955
- 被引次数: 11
下载:
