CAJ | 학술논문

在一体化分层注水工艺中,每个层段的流量都要精确测量,而其所需的流量计必须能长期置于井下,综合考虑选择涡街流量计作为智能分层注水工艺中的流量检测装置.但涡街流量计易于受到管道震动和流场扰动引起的噪声干扰,且注水管道在注水的过程中更容易产生干扰信号,尤其在小流量处很难分辨出传感器产生的频率信号.本文根据涡街流量计的特点,提出一种以硬件和Mallat算法相结合,处理低频段无法分辨的问题,并进行了试验验证和现场应用.实验结果表明,使用该种方法,能有效的减少噪声干扰,降低了流量计的下限,提高了精度.
재일체화분층주수공예중,매개층단적류량도요정학측량,이기소수적류량계필수능장기치우정하,종합고필선택와가류량계작위지능분층주수공예중적류량검측장치.단와가류량계역우수도관도진동화류장우동인기적조성간우,차주수관도재주수적과정중경용역산생간우신호,우기재소류량처흔난분변출전감기산생적빈솔신호.본문근거와가류량계적특점,제출일충이경건화Mallat산법상결합,처리저빈단무법분변적문제,병진행료시험험증화현장응용.실험결과표명,사용해충방법,능유효적감소조성간우,강저료류량계적하한,제고료정도.
In layered Water Injection Technology of integration,the flow rate of each layer must be accurately mea-sured,and its required flowmeter must be placed underground long-term,Comprehensive consideration using the vortex flowmeter as flow rate detecting means In layered Water Injection Technology of integration. But vortex flow-meter susceptible to the noise of Piping vibration and flow field disturbance,And water pipes are more prone to in-terference signal in the process of water injection,especially at low flow is difficult to distinguish the frequency sig-nal generated by the sensor. Based on the characteristics of vortex flowmeter proposed a combination of hardware and Mallat algorithm to deal with the problem of the low frequency unable to distinguish,and carried out the experi-mental verification and field applications. The xperimental results show that using this method can reduce noise ef-fectively and reducing the lower limit of the flowmeter and improves the accuracy.