研究冲击脉冲在油井施工中的应用可能性

A. Ihnatov, I. Askerov
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引用次数: 1

摘要

目的。分析了利用动态冲击脉冲钻井循环作业的理论基础、设计方案和计算技术和技术支持的方法,以加强正在施工的井底破坏过程。研究方法。使用现代实验研究方法、在EXCEL中处理研究结果的方法、MATHCAD环境、仪器(压力表、流量计)和材料,对产生冲击脉冲的设备的功能特征进行了实验室研究。采用ZIF-650M钻机和UKB-4P钻机(也是相应的主要钻井工具),以第聂伯罗理工大学培训钻井现场的试验井为模型,模拟了井循环的流动和破坏性技术作用。研究的结果。阐述了冲击脉冲发生器-钻孔液压锤工作过程的理论和实践基础。通过对具体工作和研究的详细分析,从断裂力学和该过程的能量强度的角度来看,水力冲击钻井方法的发展前景是有效的。反过来,这将有可能确定最合理的参数来破坏井底岩石,即以最小的能源消耗获得最大的生产力。研究了液压冲击装置工作机理的基本原理,推导了表征其工作流程的最重要的分析依赖关系。创意。冲击-旋转钻井方法的高效率在于断裂载荷的施加率值很大,而使用液压冲击机械时,断裂载荷的施加率变化很大。实际意义。考虑了理论基础,并创建了用于产生冲击脉冲(液压锤)的装置的全新设计方案,该装置的使用将确保以高生产率和高效率加深井底过程的稳定性,此外,可以在技术方案中有机地使用这些装置,以消除井的复杂性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study the possibilities of application impact pulses in construction of wells
Purpose. Analysis of the theoretical foundations, design schemes and methods for calculating the technical and technological support of drilling cycle operations using dynamic shock impulses in order to intensify destructive processes at the bottom of a well under construction. Research methodology. Laboratory studies of the features of the functioning of devices for generating shock pulses were carried out using modern methods of experimental research, methods for processing research results in the EXCEL, MATHCAD environment, instrumentation (pressure gauges, flow meters) and materials. The flow of well circulation and destructive technological actions was modeled on pilot wells of the training drilling site of the Dnipro University of Technology using a ZIF-650M drilling rig and a UKB-4P drilling rig, also the corresponding main drilling tool. Research results. Theoretical and practical foundations of the process of operation of shock pulse generators - drilling hydraulic hammers are formulated. A detailed analysis of specific works and studies shows the prospects for the development of hydropercussion drilling methods that are effective both from the standpoint of fracture mechanics and the energy intensity of this process. This, in turn, will make it possible to determine the most rational parameters for the destruction of rock at the bottom of the well, that is, maximum productivity with minimal energy consumption. The basic principles of the mechanism of functioning of hydraulic impact devices are studied with the derivation of the most important analytical dependencies characterizing their workflow. Originality. The high efficiency of the percussion-rotary drilling method lies in the significant value of the rate of application of the breaking load, which, when using hydraulic percussion machines, is subject to wide variation. Practical implications. The theoretical foundations are considered and radically new design schemes for the implementation of devices for generating shock pulses (hydraulic hammers) are created, the use of which will ensure the constancy of the process of deepening the bottom hole with a high degree of productivity and efficiency, in addition, it is possible to organically use these devices in technological schemes for eliminating well complications.
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