环腔式流体声波发生器结构参数优化

Structural parameter optimization of annulus fluid acoustic generators

吴晓明 张建国 王颖 刘观营

WU Xiaoming ZHANG Jianguo WANG Ying LIU Guanying

中国石油大学石油工程学院，山东东营257061 中国石油大学物理科学与技术学院，山东东营257061 胜利油田有限公司孤岛采油厂，山东东营257231

College of Petroleum Engineering, China University of Petroleum, Dongying 257061, China College of Physics Science and Technology, China University of Petroleum, Dongying 257061, China Gudao Production Plant, Shengli Oilfield Ltd., Co., Dongying 257231, China

为了避免声波传播时的相互干扰，在哈特曼流体声波发生器喷射腔和谐振腔之间增设了一同轴圆筒，得到了产生更大功率声波的环腔式流体声波发生器。为了减小先前实验过程中离散取点带来的频率和振幅测试误差，采用了丹麦产水听器和GPIB数据采集卡采集测试环腔式流体声波发生器产生的声波，更准确地测定了喷距、谐振腔深度和流速等参数对产生声波的频率和振幅的影响，得到了结构参数与频幅之间的规律，为环腔式流体声波发生器的结构设计提供了依据。在孤岛油田多口油井施工，解堵增产效果显著。

In order to avoid the mutual interference of acoustic wave propagation, a coaxial cylinder is placed between the jet and the resonator of the Hartmann fluid acoustic generator, as well as an annulus fluid acoustic generator which can get higher power acoustic wave is developed. Aiming at reducing errors in frequency and amplitude measurement caused by discrete point selection in former experiments, the detector produced in Denmark and the GPIB data acquisition card are used to acquire and test the acoustic wave generated from the annulus fluid acoustic generator. As a result, the influence of such parameters as the jet distance, the resonator depth, and the jet speed on the wave frequency and amplitude is more accurately determined. The law between the structural parameters and the frequency and amplitude is developed, providing the basis for the design of annulus fluid acoustic generators. The application in several oil wells of Gudao Oilfield shows that it is effective to remove plugging and increase production.