Research on the Driving Force of the Pumping Down Tool for a PE Screen Completion in CBM Horizontal Wells
-
摘要: 针对煤层气水平井现场作业工况，为优化设计聚乙烯塑料筛管（PE筛管）完井用泵送工具参数，提高PE筛管的泵送效率，利用CFD数值模拟方法开展了钻井液性能参数、钻杆和泵送工具参数对泵送工具推进力影响的研究。结果表明，泵送工具承压抬肩处的流体压力为正压，引导头表面的流体压力为负压，二者方向相反，合力为泵送工具前行提供动力；泵送工具推进力随钻井液排量、黏度和密度增大呈增大趋势，但钻井液排量和密度对推进力的影响远大于钻井液黏度对推进力的影响；泵送工具的推进力随着泵送工具与钻杆内壁之间环空间隙增大先快速减小后缓慢减小，随泄流孔直径增大呈线性减小的趋势，环空间隙对推进力的影响远大于泄流孔直径对推进力的影响。室内研究与现场应用表明，该泵送工具能产生足够大的推进力，能满足PE筛管完井的现场作业要求。Abstract: In order to efficiently design the parameters of the pumping down tool and to improve the pumping efficiency of PE screens, a study was conducted to investigate the effects of drilling fluid, drilling pipe and pumping down tool parameters on the driving force of pumping down tools by means of a CFD numerical simulation method based on the on-site operational conditions of CBM horizontal wells.It was shown that the fluid pressure at the pressurized ledge of pumping down tools was positive and the fluid pressure at the guiding surface was negative.In view of the opposite directions of the positive and negative force, their resultant force was the force to drive pumping down tools forward.The driving force on the pumping down tools increased by increasing the flow rate, viscosity and density of drilling fluid, but the effect of drilling fluid viscosity on driving force was much less than that of drilling fluid density and flow rate.The driving force on the pumping down tools decreased quickly at first and then slowly by increasing of the annular clearance between the drilling pipe and the pumping down tool, and decreased lineally by increasing the drainage orifice diameter.The effect of annular clearance on driving force was much more than that of drainage orifice diameter.Indoor investigation and field application indicated that the driving force produced by thispumping down tool was large enough to satisfy the field operation of PE screen completion.
-
Keywords:
- coal bed methane /
- horizontal well /
- PE screen /
- screen completion /
- pumping down tool /
- driving force
-
-
[1] 付利,申瑞臣,苏海洋,等.煤层气水平井完井用塑料筛管优化设计[J].石油机械,2012,40(8):47-51. FU Li,SHEN Ruichen,SU Haiyang,et al.Optimized design of platic screen for coal bed methane horizontal well completion[J].China Petroleum Machinery,2012,40(8):47-51. [2] 赵永哲.松软煤层水平对接井筛管完井工艺技术[J].煤田地质与勘探,2014,42(4):100-102. ZHAO Yongzhe.Well completion technology by screen pipe for horizontally-intersected well in soft coal seam[J].Coal Geology Exploration,2014,42(4):100-102. [3] BENNETT T.Innovation of coal seam gas well-construction process in Australia:lesson learned, successful practices, areas of improved[R].SPE 156930,2012.
[4] ZHAO Yongzhe,SHI Zhijun,HAO Shijun,et al.Well completion technology using screen pipe for horizontally-intersected well in soft coal seam//2012 Chengdu Geological Engineering Drilling Technology Conference[C].2012.
[5] 申瑞臣,时文,徐义,等.煤层气U型井PE筛管完井泵送方案[J].中国石油大学学报(自然科学版),2012,36(5):96-99,104. SHEN Ruichen,SHI Wen,XU Yi,et al.PE screen completion for U-shaped coal-bed methane wells with pumping method[J].Journal of China University of Petroleum(Edition of Natural Science),2012,36(5):96-99,104. [6] 陈修平,邹德永,李东杰,等.PDC钻头防泥包性能数值模拟研究[J].石油钻探技术,2015,43(6):108-113. CHEN Xiuping,ZOU Deyong,LI Dongjie,et al.Numerical simulation study on the anti-balling performance of PDC drill bits[J].Petroleum Drilling Techniques,2015,43(6):108-113. [7] 魏辽,韩峰,陈涛,等.套管固井滑套冲蚀磨损模拟分析与试验研究[J].石油钻探技术,2014,42(3):108-111. WEI Liao,HAN Feng,CHEN Tao,et al.Analysis and experimental research on erosion of cementing sliding sleeve[J].Petroleum Drilling Techniques,2014,42(3):108-111. -
期刊类型引用(6)
1. 张金宝. 钻杆内水力输送分组筛管自动对接技术试验研究. 煤矿安全. 2024(07): 206-212 . 
百度学术
2. 高德利，毕延森，鲜保安. 中国煤层气高效开发井型与钻完井技术进展. 天然气工业. 2022(06): 1-18 . 百度学术
3. 黄中伟，李国富，杨睿月，李根生. 我国煤层气开发技术现状与发展趋势. 煤炭学报. 2022(09): 3212-3238 . 百度学术
4. 刘明军，李兵，黄巍. 煤层气水平井无导眼地质导向钻进技术. 煤田地质与勘探. 2020(01): 233-239 . 百度学术
5. 谭天宇，李浩，李宗源，蒋海涛，何景朝. 煤层气多分支水平井分支井眼重入筛管完井技术. 石油钻探技术. 2020(04): 78-82 . 本站查看
6. 王尧，邢洪宪，张磊，张纪双，张春升，孟召兰，刘传刚. 泡沫金属防砂筛管性能评价试验. 石油机械. 2019(04): 90-97 . 百度学术
其他类型引用(0)
计量
- 文章访问数: 14529
- HTML全文浏览量: 97
- PDF下载量: 14788
- 被引次数: 6
下载:
