投球式井下智能分控开关系统的研制及功能试验

发布时间：2018-03-17 07:15

本文选题：分层开采　切入点：投球式　出处：《石油钻探技术》2017年04期 　论文类型：期刊论文

【摘要】：为了降低分层采油中的生产维护成本,结合无线射频和单片机技术,研制了一种投球式井下智能分控开关控制系统,并在室内对其进行了功能试验。在分析各类井下开关系统优缺点的基础上,明确了研制思路:在地面通过投入信号小球的方式来实时灵活地控制井下目标油层开关阀的开启/关闭,实现对目标油层的有效控制。确定了总体设计方案:在油管内先后投入2个信号小球,先投入的信号小球用于井下控制系统的唤醒,后投入的信号小球携带开启/关闭目标油层开关阀的指令,用于控制目标层位开关。室内模拟试验表明,投入唤醒信号小球后井下控制器由待机模式变为工作模式,投入油层控制信号小球后,各目标油层开关阀能按预定指令正确开/关,各层通信、开关控制均满足设计要求。研究认为,研制的井下智能分控开关系统能够实现对目标油层的有效控制和降低油层间的干扰,从而实现分层采油、提高采收率。
[Abstract]:In order to reduce the cost of production and maintenance in stratified oil production, a kind of downhole intelligent split-control switch control system is developed, which combines the technology of radio frequency and single-chip computer. On the basis of analyzing the merits and demerits of all kinds of downhole switching systems, It is clear that the research idea is to control the opening / closing of the downhole target oil layer switch valve in real time and flexibly by putting the signal ball on the ground. To realize the effective control of the target reservoir, the overall design scheme is determined: two signal balls have been put into the tubing, and the first signal balls have been used to awaken the downhole control system. The signal ball carried the instruction of opening / closing the switch valve of the target oil layer, which is used to control the target layer switch. The indoor simulation test shows that the downhole controller of the small ball after the wake-up signal is changed from standby mode to working mode. After putting into the reservoir control signal ball, each target oil layer switch valve can turn on / off correctly according to the predetermined instruction, each layer communication and switch control all meet the design requirements. The developed downhole intelligent split-switch system can effectively control the target reservoir and reduce the interlayer interference, so as to realize the stratified oil recovery and improve the recovery efficiency.
【作者单位】：机械科学研究院哈尔滨焊接研究所;哈尔滨工业大学电气工程及自动化学院;中石化胜利石油工程有限公司钻井工艺研究院;中石油燃料油有限责任公司;中国石油大学(华东)信息与控制工程学院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”课题“低渗油气田高效开发钻井技术(二期)”(编号:2011ZX05022)资助
【分类号】：TE938

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