1、 1 油井产量计量系统及计量罐单元设计 摘 要 油井产量计量是掌握油井动态，分析油储层的变化情况，科学地制定油田 开发方案的重要依据。是原油生产单位的一项重要日常工作。目前中国油井产 量计量在动态周期性计量的基础上， 普遍采用多井集中计量方式，对于单拉井， 可采用静态计量方式，对于开采后期的油井，针对其普遍低产少气的特点，可 采用活动计量或软件计量方式，其中软件计量应用最多的是页面恢复法、示功 图法。20 世纪末国内外研制开发的多相流量计可同时计量管道内油、气、水的 产量，是油井产量计量技术的发展方向。 本文针对超稠原油计量准确度低、不能实时计量的现状，采用称重的方式 对原油进行计量。解决了稠
2、油计量的准确度、可靠性、耐久性及实时在线计量 的问题。设计中采用垂直计量罐，在计量罐原油进口处安装伞状分离器，进行 油气分离。气体通过罐上部的接管流出，液体进入到计量翻斗内。在翻斗上安 装称重传感器，采用两个翻斗轮流计量。通过称出每斗的原油重量，得到原油 产量。解决了油中含气造成假体积带来的计量误差。采用对称的两个独立料斗， 分别设置两个称重传感器，得到每个料斗的空斗和满斗的重量。再将满斗的重 量减去空斗重量得到一斗原油的重量。在一个确定的计量时间内，根据料斗的 翻转次数，进而得到该时间内的原油产量。 文中对计量系统的计量罐进行了设计，完成了结构设计，计算并校核了罐 体强度，确定了接管位置和尺
3、寸，绘制了较完整的计量罐图。 关键词：油井产量，计量，计量罐，料斗 2 Oil well production metering system and metering tank unit design Abstract Oil well production metering is grasped well dynamic, analysis of oil reservoir changes, making oilfield development plan important basis, crude oil production units is an important daily w
4、ork. At present, Chinese oil well production metering in dynamic periodic measurement based on multi well, generally adopt the centralized metering mode, for a single pull well, can be used for static measurement, late stage of production wells, for its general low gas characteristics, can adopt mov
5、able metering or software measurement method, which is the most widely used software measurement page recovery method, dynamometer diagram method. At the end of twentieth Century domestic and foreign research and development of the multiphase flow meter can simultaneously measure the pipeline oil, g
6、as, water yield, is the oil well production metering technology development direction. In this paper, ultra-thick crude oil measurement accuracy is low, not real-time measurement of the status quiet, measured using weighing on crude oil. To solve 3 the problem of heavy oil measurement accuracy, reliability, durability, and real-time online measurement. Design used in the vertical measurement of cans, umbrella separator installed in the measuring tank of crude oil imports,
