改善油田开发中特殊井下流体的性能

O. Aziukovskyi, A. Ihnatov, Y. Stavychnyi
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Laboratory control methods were used to study the technological characteristics of special fluids and the patterns of operation of the drilling tool, which are working methods for determining the main characteristics of the formation processes of the wellbore at different stages of its construction. The design of the stabilized buffer mixture was carried out using the method of orthogonal central compositional planning. Findings. The physicochemical properties and influence of washing liquids of various compositions on the rocks of the sedimentary and metamorphic complexes have been studied from the standpoint of their hydration and the ability for surface adsorption interaction. The mechanism of the flow of well circulation processes with the participation of flushing fluids, as well as its consequences for the appearance of prerequisites for reducing the strength of the rock mass and reducing the loss of mechanical power in the wellbore, has been studied. 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引用次数: 0

摘要

目的。通过开发和实施创新的技术和工艺技术和方法,进行分析、实验室和工业研究,以及分析在困难的地质和岩性条件下钻井的清洗、套管和固井过程中合理使用特殊工艺流体的基本因素。方法。利用物理台架建模、仪器仪表和相关材料的现代方法,并在EXCEL、MATHCAD环境中对研究结果进行处理,进行了井眼循环、岩石切割和工艺过程的研究。采用实验室控制方法,研究特殊流体的工艺特性和钻井工具的操作方式,是确定井筒不同施工阶段地层过程主要特征的工作方法。采用正交中心成分规划法对稳定缓冲液进行了设计。发现。从水化作用和表面吸附相互作用的角度,研究了不同组成的洗液对沉积和变质配合物岩石的理化性质及影响。研究了在冲刷流体参与下的井循环过程的流动机制,以及它对降低岩体强度和减少井筒中机械动力损失的先决条件的影响。考虑了利用沉淀现象构建冲洗液再生优化方案的原则。开发和澄清缓冲流体行为的井下因素,考虑到它们的规定,以完全排除违反水泥石完整性的表现。创意。根据特定井的地质和技术条件,对特殊工艺流体的主要物理和化学性质(密度、粘度、表面张力、润滑杂质含量)进行定向调节和调整,可以成功地实现建井过程指标的合理化。实用价值。研究结果为建立封闭的工程周期,设计和使用特殊工艺流体提供了依据,以减少建井时间,消除井中复杂的修理和恢复工作成本。关键词:冲洗液,表面活性剂,井,钻井,缓冲系统,紧固,水泥石,矿山。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
IMPROVING THE PROPERTIES OF SPECIAL DOWNHOLE FLUIDS IN FIELD DEVELOPMENT
Purpose. Analytical, laboratory and industrial study, as well as analysis of the basic factors of rationalization of the use of special process fluids in the processes of cleaning, casing and cementing of boreholes drilled in difficult geological and lithological conditions, through the development and implementation of innovative technical and technological techniques and methods. Methodology. The study of borehole circulation, rock cutting and regime-technological processes was carried out using modern methods of physical bench modeling, instrumentation and related materials, as well as processing the results of studies in the EXCEL, MATHCAD environment. Laboratory control methods were used to study the technological characteristics of special fluids and the patterns of operation of the drilling tool, which are working methods for determining the main characteristics of the formation processes of the wellbore at different stages of its construction. The design of the stabilized buffer mixture was carried out using the method of orthogonal central compositional planning. Findings. The physicochemical properties and influence of washing liquids of various compositions on the rocks of the sedimentary and metamorphic complexes have been studied from the standpoint of their hydration and the ability for surface adsorption interaction. The mechanism of the flow of well circulation processes with the participation of flushing fluids, as well as its consequences for the appearance of prerequisites for reducing the strength of the rock mass and reducing the loss of mechanical power in the wellbore, has been studied. The principles of constructing optimal schemes for the regeneration of a flushing liquid based on the use of sedimentation phenomena are considered. The development and clarification of downhole factors in the behavior of buffer fluids, taking into account their provision for the complete exclusion of the manifestation of violations of the integrity of the cement stone. Originality. Rationalization of indicators of the well construction process can be successfully achieved on the basis of directed regulation and adaptation of the main physical and chemical properties (density, viscosity, surface tension, content of lubricating impurities) of special process fluids for specific well geological and technical conditions. Practical value. The presented research results provide the basis for building a closed engineering cycle for designing and using special process fluids in order to reduce the time for well construction and eliminate the cost of complex repair and restoration work in them. Keywords: flushing liquid, surfactant, well, drilling, buffer system, fastening, cement stone, mine.
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