Study on the Fluctuation of Bottomhole Pressure While Starting and Stopping the Drilling Pump
-
摘要: 为了准确了解钻井过程中开停泵对井底压力的影响，指导安全钻井作业，根据不稳定流动理论，建立了开停泵井底压力波动模型，采用特征线的求解方法，并借助计算机编程对其求解，利用现场实测数据对模拟结果进行验证，分析了压力波在井内的传递与转化过程，研究了开停泵持续时间、钻头距井底距离及钻井液性能对井底压力波动的影响。模拟结果显示：开停泵持续时间越长，异常压力窗口比越小；钻井液密度越大，异常压力窗口比越大；钻井液稠度系数与流性指数越大，异常压力窗口比越小。研究表明，钻井开停泵时，开停泵持续时间、钻井液稠度系数及钻井液流性指数对井底压力的影响极为明显。建立的开停泵井底压力波动模型可以为现场开停泵作业提供参考。Abstract: In order to accurately understand the effect of pump on/off on bottomhole pressure and provide guidance for safe drilling,a model of bottomhole pressure fluctuation caused by pump on/off has been built according to unstable flow theory.The authors analyzed the process of transmission and transformation of pressure waves in the well by means of the solution of characteristic line, and computer programming and well simulation results using field experimental data.The effect of duration of pump on/off,the distance of drilling bit to the bottom fo the hole and the drilling fluid properties was also studied.The simulation results showed that the longer the duration of pump on/off,the smaller the abnormal pressure window ratio;the greater the drilling fluid density,the larger the abnormal pressure window ratio;the larger the drilling fluid consistency coefficient and flow index,the smaller the abnormal pressure window ratio.The study indicated that duration of pump on/off,drilling fluid consistency coefficient and flow index of drilling fluids had a conspicuous effect on bottomhole pressure.The model of pressure fluctuation caused by pump on/off during drilling can provide theoretical reference for starting and stopping the pump on site and can predict mud pump damage.
-
-
[1] CRESPO F E,AHMED R M,SAASEN A,et al.Surge-and-swab pressure predictions for yield-power-law drilling fluids[J].SPE Drilling Completion,2012,27(4):574-585.
[2] LAL M.Surge and swab modeling for dynamic pressures and safe trip velocities[R].SPE 11412,1983.
[3] LUBINSKI A,HSU F H,NOLTE K G.Transient pressure surges due to pipe movement in an oil well[J].Oil Gas Science and Technology,1977,32(3):307-348.
[4] MITCHELL R F.Dynamic surge/swab pressure predictions[J].SPE Drilling Engineering,1983,3(3):325-333.
[5] 樊洪海.实用钻井流体力学[M].北京:石油工业出版社,2014:302-318. FAN Honghai.Practical drilling fluid mechanics[M].Beijing:Petroleum Industry Press,2014:302-318. [6] 樊洪海,褚元林,刘希圣.起下钻时井眼内动态波动压力的预测[J].石油大学学报(自然科学版),1995,19(5):36-41. FAN Honghai,CHU Yuanlin,LIU Xisheng.Prediction for wellbore dynamic surge pressure while tripping a drillpipe[J].Journal of the University of Petroleum,China(Edition of Natural Science),1995,19(5):36-41. [7] 彭齐,樊洪海,刘劲歌,等.起下钻过程中井筒稳态波动压力计算方法[J].石油钻探技术,2016,44(4):35-40. PENG Qi,FAN Honghai,LIU Jinge,et al.Improved calculation of wellbore steady fluctuation pressure in tripping operations[J].Petroleum Drilling Techniques,2016,44(4):35-40. [8] BURKHARDT J A.Wellborepressure surges produced by pipe movement[J].Journal of Petroleum Technology,1961,13(6):595-605.
[9] 李云,贾江鸿.车66区块钻井过程井底压力波动及渗流规律[J].石油钻采工艺,2016,38(2):138-143,155. LI Yun,JIA Jianghong.Bottom-hole pressure fluctuation and seepage pattern during well drilling in Che-66 Block[J].Oil Drilling Production Technology,2016,38(2):138-143,155. [10] 陈林.气井多相流水击数学模型的建立和求解[J].石油学报,2017,38(7):813-820. CHEN Lin.Establishment and solution ofthe mathematical model of multiphase water hammer in gas wells[J].Acta Petrolei Sinica,2017,38(7):813-820. [11] 李荣,何世明,刘绘新,等.溢流关井水击压力的计算及结果讨论[J].西南石油学院学报,2005,27(2):37-40. LI Rong,HE Shiming,LIU Huixin,et at.Calculation and result discussion of water hammer pressure in flooding well[J].Journal of Southwest Petroleum Institute,2005,27(2):37-40. [12] 李相方,郑权方."硬关井"水击压力计算及其应用[J].石油钻探技术,1995,23(3):1-3. LI Xiangfang,ZHENG Quanfang.Calculation and application of surge pressure for "hard closing"[J].Petroleum Drilling Techniques,1995,23(3):1-3. [13] 骆发前,何世明,黄桢,等.硬关井水击问题及减小水击措施的探讨[J].石油钻采工艺,2006,28(3):68-70. LUO Faqian,HE Shiming,HUANG Zhen,et al.Discussion of water hammer and measure to reduce water hammer pressure about hard shut-in[J].Oil Drilling Production Technology,2006,28(3):68-70. [14] 孔祥伟,林元华,邱伊婕,等.钻井泥浆泵失控/重载引发的波动压力[J].石油学报,2015,36(1):114-119. KONG Xiangwei,LIN Yuanhua,QIU Yijie,et al.Fluctuating pressure caused by runaway/overload of mud pump in drilling operations[J].Acta Petrolei Sinica,2015,36(1):114-119. [15] 张迎进,朱忠喜,蔡敏,等.钻井泵开启和关闭瞬时水击压力计算[J].石油钻探技术,2008,36(2):48-50. ZHANG Yingjin,ZHU Zhongxi,CAI Min,et al.Calculation of water hammer pressure[J].Petroleum Drilling Techniques,2008,36(2):48-50. [16] 蒲家宁.管道水击分析与控制[M].北京:机械工业出版社,1991:2-8. PU Jianing.The water hammer in pipeline analysis and control[M].Beijing:China Machine Press,1991:2-8. [17] 郗凤亮,徐朝阳,马金山,等.控压钻井自动分流管汇系统设计与数值模拟研究[J].石油钻探技术,2017,45(5):23-29. XI Fengliang,XU Chaoyang,MA Jinshan,et.al.Design and numerical simulation of an automatic diverter manifold in managed pressure drilling[J].Petroleum Drilling Techniques,2017,45(5):23-29. [18] WYLIE E B,STREETER V L.瞬变流[M].清华大学流体传动与控制教研室,译.北京:水力水电出版社,1983:25-48. WYLIE E B,STREETER V L.Fluid transients[M].Department of Fluid Transmission and Control of Tsinghua University,Translated.Beijing:Water Resources and Electric Power Press,1983:25-48. [19] 沈学海.钻井往复泵原理与设计[M].北京:机械工业出版社,1990:73-78. SHEN Xuehai.Principle and design of drilling reciprocating pump[M].Beijing:China Machine Press,1990:73-78. -
期刊类型引用(12)
1. 李建东. 致密油水平井钻井提速技术研究与应用. 石油和化工设备. 2023(08): 8-10 . 
百度学术
2. 陈秀英. 水平井钻井优化施工实践与认识. 石油和化工设备. 2023(08): 92-94 . 百度学术
3. 谢中成，曹明辉，李乾，雷新超. 东海井身结构优化与钻井提速技术. 海洋石油. 2021(03): 52-59 . 百度学术
4. 施览玲. 东海西湖井身结构深度优化技术及其应用. 钻探工程. 2021(10): 76-81 . 百度学术
5. 陈奎，朱绍鹏，邹明生，盖永浩，董志华，朱玉双. 涠西南凹陷勘探开发一体化开发评价井钻探模式研究. 石油钻探技术. 2021(06): 42-49 . 本站查看
6. 姜韡，李基伟，张瑞，何阳子，熊振宇. 东海西湖凹陷安全高效钻井技术优化研究. 海洋石油. 2021(04): 57-62 . 百度学术
7. 张海山，宫吉泽. 东海深部致密储层主要钻井技术及其应用. 探矿工程(岩土钻掘工程). 2019(01): 39-44 . 百度学术
8. 姜韡，邱康，方华良. 东海西湖凹陷探井井身结构设计方法研究. 海洋石油. 2019(01): 76-81 . 百度学术
9. 熊文学，龙安杰，王武兵，卢雄. 泰国呵叻盆地L31/50区块探井井身结构优化与实践. 石化技术. 2019(12): 305-306 . 百度学术
10. 刘奥，曹光福，谢建安，陈松平，辛小亮. 霍尔果斯背斜深井井身结构优化设计. 探矿工程(岩土钻掘工程). 2018(02): 26-29 . 百度学术
11. 胜亚楠，管志川，张国辉，叶浪. 基于区域地层压力描述的东坪区块井身结构优化. 断块油气田. 2016(03): 401-404 . 百度学术
12. 侯冠中，席江军，和鹏飞，边杰，许迪. 单筒双井占位钻具技术研究及在渤海油田的应用. 石油钻探技术. 2016(02): 70-75 . 本站查看
其他类型引用(4)
计量
- 文章访问数: 4079
- HTML全文浏览量: 92
- PDF下载量: 5682
- 被引次数: 16
下载:
