车载式压裂液快速实时配置系统设计及应用技术研究

发布时间：2018-02-27 00:07

本文关键词： 压裂液配置系统车载系统车架有限元　出处：《西安石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：在我国,越来越多的油田采用水力压裂来提高油气井的生产能力和注水井的增注能力。压裂己经成为改造低渗透油气藏和开发深部油气藏的主要手段。在此过程中,石油压裂液的配制质量也就成为了保证压裂作业成功的重要因素。在以往的压裂施工过程中,配液是需要时间最长的施工步骤。为了满足连续混配的工艺要求,在工作液体系开发的基础上,通过试验和完善配套,研制出压裂液的连续混配装置与混配工艺具有非常重要的意义。本课题将研制一种车载式配药系统,该系统不仅可以实现压裂工艺的现场控制、减轻劳动强度、缩短作业周期,而且可以减少浪费、降低成本,更有利于环保。该系统进一步缩小了车撬的空间并能够严格精确地按配方控制压裂液各组分的加入量,从而使所生产出的压裂液具有滤失小、悬浮能力强、摩阻低、热稳定性和剪切稳定性能好、残渣低、配伍性好、破胶迅速彻底的特点。文中主要对多通道射吸式压裂液混配装置(简称:多通道装置)的工作性能、车载系统的移运性能进行了分析研究。本文对多通道装置进行了初步结构设计,建立了多通道装置的工作理论;建立了系统工作时管柱内环形空间液体流场规律分析模型;分析研究了配药系统与搅拌系统合理匹配技术;对车载系统在移运及工作状态下的重心坐标、通过性能、最大爬坡度、纵向和横向稳定性进行了分析和研究;利用ANSYS有限元分析软件计算了车架的强度和刚度、固有频率及其振型。本文的研究开辟了车载式压裂液快速实时混配系统在石油开采中的应用,为以后的专用车选型及多通道装置的进一步优化提供了理论指导。
[Abstract]:In China, more and more oil fields use hydraulic fracturing to improve the production capacity of oil and gas wells and the injection capacity of water injection wells. Fracturing has become the main means of reforming low permeability reservoirs and developing deep reservoirs. The quality of fracturing fluid has become an important factor to ensure the success of fracturing operation. On the basis of the development of working fluid system, it is of great significance to develop the continuous mixing device and mixing process of fracturing fluid through experiments and perfect matching. The system can not only realize field control of fracturing process, reduce labor intensity, shorten operation cycle, but also reduce waste and cost. The system further reduces the space of the car pry and can strictly and accurately control the addition of fracturing fluid components according to the formula, so that the fracturing fluid produced has small filtration, strong suspending ability and low friction. The characteristics of good thermal stability and shear stability, low residue, good compatibility, quick and thorough gel breaking. This paper mainly deals with the working performance of the multi-channel injection-suction fracturing fluid mixing device (referred to as the multi-channel device). In this paper, the preliminary structure design of the multi-channel device is carried out, the working theory of the multi-channel device is established, and the analysis model of the liquid flow field in the annular space of the pipe string is established. The reasonable matching technology between the dispensing system and the mixing system is analyzed and studied, and the barycenter coordinates of the vehicle system under the moving and working conditions are analyzed and studied through the performance, the maximum climbing slope, the longitudinal and the lateral stability. The strength and stiffness, natural frequency and mode shape of the frame are calculated by using the ANSYS finite element analysis software. The research in this paper has opened up the application of the vehicle-borne fracturing fluid rapid real-time mixing system in oil production. It provides theoretical guidance for the selection of special purpose vehicles and the further optimization of multi-channel devices.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357.12

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