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存储式深井电子压力计的研究与开发

【作者】 李美艳

【导师】 陈明;

【作者基本信息】 西北工业大学 , 精密仪器及机械, 2004, 硕士

【摘要】 地层压力测量是油气田开发过程中必不可少的工作,所测得的压力数据是油气田开发过程中的一项极为重要的资料。它是研究油气层特性、掌握油气层动态、检查地面采油工艺流程的重要手段。为了确定油井的地层压力,人们必须借助于各种精密的压力测量仪表,以获得相当精确的压力数据。 目前油田使用较多的井下压力计通常分为机械式和电子式两种。存储式电子压力计是电子式压力计的一种,由于具有精度高、性能可靠、操作方便等特点,成为国内各个油田使用最多的一种压力计。本文所讨论的SJDY-Ⅰ型电子压力计是一种新型的存储式电子压力计。 本文首先在介绍了试井技术和目前国内外压力计的发展状况的基础上,进行了SJDY-Ⅰ型存储式深井电子压力计系统总体方案设计,并对该系统的工作原理进行了简要的分析;然后,阐述了SJDY-Ⅰ型存储式深井电子压力计井下仪器部分的软硬件设计思想和设计目标,详细介绍了整个系统的硬件组成部分,并给出了单片机系统(即井下仪器部分)软件的设计思想和各个功能模块的流程;接着,重点分析了SJDY-Ⅰ型存储式深井电子压力计的上位机程序以及各个模块的具体功能,并设计了相应的软件予以实现;最后采用滤波技术和非线性校正方法,来提高整个系统精度。 本文结尾总结了SJDY-Ⅰ型电子压力计的设计与开发,并就下一步的开发方向和开发前景作了简要的展望。

【Abstract】 It is necessary to measure stratum pressure in the process of developing oil field. The pressure datum is an important means of researching the speciality of oil stratum, mastering its status and checking the process of oil extraction. To acquire the stratum pressure, it is nesessary to use all kinds of precise pressure measure instrument.Now, there are usually two kinds of pressure meter used in the oil field, one is mechanical, the other electronic. The storage electronic pressure meter is widely used for its high precision, reliable perfermance and convenient operation. This paper will discuss SJDY-I electronic pressure meter which is one new kind of storage electronic pressure meter.Firstly, the paper discusses well logging technology and the development of the domestic and foreign pressure meters, then proposes the sytem scheme design of SJDY-I electronic pressure meter and briefly analyzes its operating principle .Secondly, the paper explains in detail the software and hardware design method, presents the design thought and flow charts of every function modules.Thirdly, the paper analyzes the PC program, introduces software which adopts the filter and nonlinear regression methods for improve the system precision.In the end, the paper summarizes the design and development methodlogy of the SJDY-I electronic pressure meter and points out the future work.

  • 【分类号】TH812
  • 【被引频次】11
  • 【下载频次】400
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