智能可投捞式一体化配水器的研制

发布时间：2018-05-10 19:57

  本文选题：分层注水 + 采油工程　； 参考：《哈尔滨理工大学》2017年硕士论文

【摘要】：注水驱油技术一直是我国油田开采中不可或缺的一部分,其主要原因是我国的大部分油田属于陆相沉积非均质砂岩油田。但随着石油的开采,油层之间的差异的变化,传统的笼统注水工艺已经不能满足动态平衡个个层间的差异,因此导致油田的开采效率的降低。针对各个油层的不同情况,在现有工艺发展的基础上研发了分层注水工艺,提升了工作效率。但随着油田开采进入到特高含水期后,由于技术水平发展有限,分层注水工艺水平距离水驱的要求还有很大的距离,具体面临如下问题:由于层间的压差增大,导致注水合格率迅速降低,各个层面间的注水失败;单层段注水参数得不到长时间的监测,对剩余油量无法得到充分的开采以及分析,需要进行分注的数量愈来愈多,工作量逐年增大。为了进一步开采在特高含水期的剩余油量,需要对配水器的结构重新进行调整以及针对该配水器的配套技术进行重新的研发。本文针对此类课题开展以下研究工作,满足我国现阶段采油注水的实际需求,开发出一种适合在特高含水期的智能一体化配水器,将多信息测试与流量控制整合在井下,并通过该配置实现对井下各分注层段的实时监控并在自定义调配的周期内对各个层段进行流量调控。该配水器具有“智能精确测调,实时监测工艺参数,数据信息存储与传递”的特点,从而实现精细注水以及各个层段自动调配,大大减少了工作量,在对分层注水的测调效率以及精度实现了很大的提升同时,又能对井下参数进行实时的监控,为开发剩余油量提供了强有力的技术支持。本文在桥式偏心分层配水器的基础上进行了重新设计,开发出与智能一体化配水器配套的工艺管柱,并通过数据处理设计出调节、流量、压力、温度测试为一体的智能堵塞器,实现多层段同步动态测调;开展了注水井工况下数据传输技术研究,通过在井下应用短距离无线通讯和地面有线远程信号通讯的方式来保证发出指令与数据处理(1000米,125℃)双向信号传输;设计了注水井工况下非接触感应定位及基于高频感应的充电装置,解决机械定位工艺由于试探性所导致的低效及井下供电电池一次性的瓶颈问题。最后在室内进行了模拟实验,包括通讯及动力电传送性能测试、流量调配测试、非接触电能转化测试及综合性能测试,并在大庆油田井下进行了实际工程应用。通过以上实验证明智能可投捞式一体化配水器的实用性与可靠性。
[Abstract]:Water flooding technology has always been an indispensable part of oilfield production in China, the main reason is that most of the oil fields in China belong to continental sedimentary heterogeneous sandstone oil field. But with the development of oil and the variation of reservoir difference, the traditional general water injection technology can not meet the difference of dynamic balance between layers, which leads to the decrease of oil production efficiency. According to the different conditions of each reservoir, based on the development of the existing technology, the stratified water injection process is developed to improve the working efficiency. However, with the development of oilfield entering into the period of super high water cut, due to the limited development of technology, there is still a long distance between the horizontal level of stratified water injection and the requirement of water flooding. The specific problems are as follows: due to the increase of the pressure difference between layers, As a result, the qualified rate of water injection decreases rapidly, the water injection failure between different layers, the parameters of single layer water injection can not be monitored for a long time, the remaining oil quantity can not be fully exploited and analyzed, and the quantity of separate injection is becoming more and more. The workload is increasing year by year. In order to further exploit the remaining oil in the high water cut period, it is necessary to readjust the structure of the water distributor and to re-develop the matching technology of the water distributor. In this paper, the following research work is carried out to meet the actual demand of oil production and water injection in our country at present, and an intelligent integrated water distributor suitable for super high water cut period is developed, which integrates multi-information testing and flow control in the downhole. Through this configuration, the real-time monitoring of each injection zone is realized, and the flow regulation of each layer is carried out in the cycle of self-defined allocation. The water dispenser has the characteristics of "intelligent accurate measurement and adjustment, real-time monitoring of technological parameters, data information storage and transmission", thus realizing fine water injection and automatic allocation of each layer, greatly reducing the workload. At the same time, it can monitor the downhole parameters in real time and provide strong technical support for the development of remaining oil quantity. On the basis of the bridge eccentricity stratified water distributor, this paper redesigns the process string matching with the intelligent integrated water distributor, and through data processing, designs the intelligent plugging device which integrates the adjustment, flow rate, pressure and temperature test. The data transmission technology under the condition of water injection well is studied. By using short-range wireless communication and ground wired remote signal communication in underground, the two-way signal transmission can be ensured by issuing instruction and data processing (1000 m ~ (125 鈩，

本文编号：1870655