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多级变径随钻扩眼器研制及刀翼受力与钻压分配分析

王站稳 张红 施雷 冯云 涂忆柳

王站稳,张红,施雷,等. 多级变径随钻扩眼器研制及刀翼受力与钻压分配分析[J]. 石油钻探技术,2022, 50(6):1-6 doi: 10.11911/syztjs.2022044
引用本文: 王站稳,张红,施雷,等. 多级变径随钻扩眼器研制及刀翼受力与钻压分配分析[J]. 石油钻探技术,2022, 50(6):1-6 doi: 10.11911/syztjs.2022044
WANG Zhanwen, ZHANG Hong, SHI Lei, et al. Development and analysis of force on blade and drilling pressure distribution of multistage diameter changing while drilling reamer [J]. Petroleum Drilling Techniques,2022, 50(6):1-6 doi: 10.11911/syztjs.2022044
Citation: WANG Zhanwen, ZHANG Hong, SHI Lei, et al. Development and analysis of force on blade and drilling pressure distribution of multistage diameter changing while drilling reamer [J]. Petroleum Drilling Techniques,2022, 50(6):1-6 doi: 10.11911/syztjs.2022044

多级变径随钻扩眼器研制及刀翼受力与钻压分配分析

doi: 10.11911/syztjs.2022044
基金项目: 国家采油装备工程技术研究中心开放基金资助项目“抽油机井杆管偏磨系统动力学行为研究”(编号:ZBKJ2021-A-02)、中海石油(中国)有限公司湛江分公司科研项目“水下采油树密封材料与结构优化研究”(编号:CCL2019ZJFN0853)资助
详细信息
    作者简介:

    王站稳(1996—),男,河南淮阳人,2019年毕业于长江大学机械设计及自动化专业,2022年获长江大学机械工程专业硕士学位,主要从事钻井设备方面的研究工作。E-mail: 867623510@qq.com。

  • 中图分类号: TE921

Development and Analysis of Force on Blade and Drilling Pressure Distribution of Multistage Diameter Changing while Drilling Reamer

  • 摘要:

    在深层小井眼采用随钻扩眼器进行扩眼作业时,存在井眼缩径、固井质量差和卡钻频繁等问题。为解决该问题,基于随钻扩眼器基本结构和工作原理,采用新型变径结构,研制了一种多级变径随钻扩眼器;建立了随钻扩眼尺寸与主动活塞轴向位移之间的函数关系,并对扩眼器刀翼进行了受力分析;采用双因素计算方法对该扩眼器进行了钻压分配分析,得到了随钻扩眼器钻压分配比对扩眼尺寸、钻具锐度及地层抗压强度的影响规律。分析得知,随钻扩眼器的钻压分配比与钻遇地层抗压强度、扩眼尺寸呈正比,与扩眼器锐度呈反比,该扩眼器的理论井径扩大率为7%~20%。研究认为,对随钻扩眼器进行钻压分配分析,可以指导扩眼器的设计及领眼钻头的选型;研制的多级变径随钻扩眼器,可以为提高扩眼效率提供有效的技术支撑。

     

  • 图 1  多级变径随钻扩眼器结构

    1.压帽;2.强制回位活塞;3.回位弹簧;4.推力轴承;5.行程控制轮;6.刀翼刀架;7.扩眼器本体;8.主动活塞;9.可换喷嘴;10.芯轴帽;11.限位活塞;12.螺钉;13.挡板;14.刀翼本体;15挡板;16.芯轴

    Figure 1.  Schematic diagram of multistage variable diameter hydraulic reaming while drilling tool

    图 2  多级变径随钻扩眼器的工作原理

    Figure 2.  Working principle diagram of reaming while drilling tool

    图 3  行程控制轮结构示意

    Figure 3.  Schematic diagram of stroke control wheel structure

    图 4  刀翼收放受力状态示意

    Figure 4.  Schematic diagram of retracting force state of blade

    图 5  刀翼伸出形式

    Figure 5.  Extrusion form of blade

    图 6  扩眼尺寸与主动活塞轴向位移的关系

    Figure 6.  Relation diagram between reaming size and axial displacement of the powered piston

    图 7  扩眼器钻压比与扩眼器和领眼钻头钻遇地层抗压强度之比的关系曲线

    Figure 7.  Relation curve between the weight on bit ratio of the reamer and the compressive strength ratio of the tool drilling into the formation

    图 8  扩眼器钻压比与扩眼器和领眼钻头锐度之比的关系曲线

    Figure 8.  Relation curve between weight on bit ratio of reamer and sharpness ratio of drill tool

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出版历程
  • 收稿日期:  2021-09-18
  • 修回日期:  2022-04-08
  • 网络出版日期:  2022-11-10

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