川庆钻探工程有限公司钻采工程技术研究院
纸质出版:2025-10-10
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杨柳青,刘彬,姚坤鹏.基于Fluent⁃EDEM耦合模型的取芯工具携岩规律[J].石油机械,2025,53(10):79-85.
Yang Liuqing Liu Bin Yao Kunpeng.Cuttings Carrying Behavior of Coring Tools Based on Fluent⁃EDEM Coupling Model[J].China Petroleum Machinery,2025,53(10):79-85.
杨柳青,刘彬,姚坤鹏.基于Fluent⁃EDEM耦合模型的取芯工具携岩规律[J].石油机械,2025,53(10):79-85. DOI: 10.12473/CPM.202505056.
Yang Liuqing Liu Bin Yao Kunpeng.Cuttings Carrying Behavior of Coring Tools Based on Fluent⁃EDEM Coupling Model[J].China Petroleum Machinery,2025,53(10):79-85. DOI: 10.12473/CPM.202505056.
为提升超深井岩心取芯作业中岩屑的携带效率,围绕取芯工具在复杂工况下的携岩性能展开研究。综合考虑取芯工具规格、岩屑粒径、钻进速度、钻井液黏度及取芯工具外筒外环空间隙等关键参数,基于Fluent⁃EDEM耦合方法构建了多种规格取芯工具的三维数值模型,对岩屑在环空中的运动行为进行了仿真分析。研究结果表明:钻进速度对携岩效率影响显著,适当提高钻进速度可增强岩屑输送能力;在岩屑粒径较小时,提高钻井液黏度有利于提升携岩效率,但在粒径较大时该效应减弱;岩屑粒径增大会降低携带效率,但因单位时间生成岩屑数量减少,整体上对携岩亦可产生一定促进作用;增大外环空间隙可拓宽岩屑流通通道,有助于岩屑排出,但需权衡流速降低所带来的负面影响。研究结果明确了各参数对携岩效率的影响机制,并提出了取芯工具结构优化的方向和建议,可为后续超深井高效取芯提供参考。
To improve cuttings carrying efficiency in coring operation of ultra⁃deep wells, the cuttings carrying performance of coring tools under complex conditions was studied. Considering the key parameters such as coring tool specification, cuttings size,rate of penetration, drilling fluid viscosity and annular clearance of coring tool outer barrel, a 3D numerical model of various specifications of coring tools was constructed based on the Fluent⁃EDEM method to simulate the movement behavior of cuttings in the annulus. The study results show that the rate of penetration has a significant effect on the cuttings carrying efficiency, and appropriately increasing the rate of penetration can enhance the cuttings transport capacity. When the cuttings size is small, increasing the drilling fluid viscosity is favorable for improving the cuttings carrying efficiency, but when the cuttings size is large, the effect is weakened. An increase in cuttings size would reduce the carrying efficiency, but due to a decrease in the number of cuttings generated per unit time, the cuttings carrying capacity is conversely promoted to some extent as a whole. Increasing the outer annular clearance can broaden the cuttings flow channel and contribute to the discharge of cuttings, but the negative impact of reduced flow velocity needs to be balanced. The study results clarify the influence mechanism of various parameters on the cuttings carrying efficiency, put forward the direction and suggestions for the structural optimization of coring tools, and provide references for the subsequent efficient coring of ultra⁃deep wells.
LU C H , ZHANG T , FAN J X . Truth⁃preserving coring tool for broken and soft mineral stratum [J]. Procedia Earth and Planetary Science , 2011 , 2 : 109 - 115 .
DENG Z Q , TIAN Y , TANG D W , et al . A new planetary exploration coring bit design and its performance tests research [C]∥ 2013 IEEE International Conference on Information and Automation (ICIA) . Yinchuan, China : IEEE , 2013 : 252 - 257 .
WANG X G , ZOU D Y . Research on thermal insulation technology of coal bed methane coring tool [J]. Fresenius Environmental Bulletin , 2020 , 29 ( 12 ): 1 0707– 10711 .
GUO D , XIE H P , GAO M Z , et al . In⁃situ pressure⁃preserved coring for deep oil and gas exploration:design scheme for a coring tool and research on the in⁃situ pressure⁃preserving mechanism [J]. Energy , 2024 , 286 : 129519 .
PENG J L , TIAN Z B , DENG C , et al . Durable and reliable thermal management system with superior temperature uniformity for sidewall coring tool in extreme thermal environments [J]. Thermal Science and Engineering Progress , 2024 , 51 : 102635 .
王志亮 , 陈锟 , 张震 , 等 . 新型钻杆的携岩原理研究与数值仿真分析 [J]. 工程设计学报 , 2021 , 28 ( 5 ): 602 - 614 .
WANG Z L , CHEN K , ZHANG Z , et al . Study on cuttings carrying principle and numerical simulation analysis of new drill pipe [J]. Chinese Journal of Engineering Design , 2021 , 28 ( 5 ): 602 - 614 .
赵佳乐 , 任连城 , 王圣林 , 等 . 旋流井眼净化工具携岩性能影响因素研究 [J]. 重庆科技学院学报(自然科学版) , 2021 , 23 ( 5 ): 64 - 69 .
ZHAO J L , REN L C , WANG S L , et al . Research on influencing factors of rock carrying performance of swirl wellbore purification tool [J]. Journal of Chongqing University of Science and Technology (Natural Sciences Edition) , 2021 , 23 ( 5 ): 64 - 69 .
冯永存 , 马成云 , 楚明明 , 等 . 刚性颗粒封堵裂缝地层漏失机制数值模拟 [J]. 天然气工业 , 2021 , 41 ( 7 ): 93 - 100 .
FENG Y C , MA C Y , CHU M M , et al . Numerical simulation on the mechanism for rigid particle plugging of leakage in fracture formations [J]. Natural Gas Industry , 2021 , 41 ( 7 ): 93 - 100 .
郭亮 , 肖杰 , 尹虎 , 等 . 旋转导向工具环空掉块运移规律数值模拟 [J]. 石油机械 , 2022 , 50 ( 12 ): 1 - 9 .
GUO L , XIAO J , YIN H , et al . Numerical simulation for the migration law of falling blocks in the annulus of rotary steerable tool [J]. China Petroleum Machinery , 2022 , 50 ( 12 ): 1 - 9 .
魏建平 , 王梦园 , 杨恒 , 等 . 磨料质量分数对预混合磨料水射流破岩效果的影响 [J]. 煤炭学报 , 2023 , 48 ( 1 ): 251 - 262 .
WEI J P , WANG M Y , YANG H , et al . Influence of abrasive mass fraction on the effect of premixed abrasive water jets on rock breaking [J]. Journal of China Coal Society , 2023 , 48 ( 1 ): 251 - 262 .
邵兵 , 闫怡飞 , 毕朝峰 , 等 . 基于计算流体力学与离散单元法并行计算的煤层气井大粒径岩屑运动规律初探 [J]. 科学技术与工程 , 2017 , 17 ( 15 ): 42 - 47 .
SHAO B , YAN Y F , BI Z F , et al . Primary research on movement of big⁃size cuttings in coal⁃bed methane wells by parallel computing using coupled CFD⁃DEM [J]. Science Technology and Engineering , 2017 , 17 ( 15 ): 42 - 47 .
邵兵 , 闫怡飞 , 毕朝峰 , 等 . 基于CFD-DEM耦合模型的大粒径非常规岩屑颗粒运移规律研究 [J]. 科学技术与工程 , 2017 , 17 ( 27 ): 190 - 195 .
SHAO B , YAN Y F , BI Z F , et al . Migration of irregular cuttings particles in big size by CFD⁃DEM coupled simulation model [J]. Science Technology and Engineering , 2017 , 17 ( 27 ): 190 - 195 .
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