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检测第一或第二油套管环形空间存在的窜流以及压力源在工业上遇到了巨大的挑战。在杜拜海上石油生产中的注水和气举过程中,利用声波基础测井仪可精确找出油套管环形空间中的高压源。该文给出了该技术的说明以及杜拜石油历史实例的经验。利用超声波可在不同介质中传播的特有性质,开发出一种井下超声波检漏仪。这个数据采集设备已经发展到可以在常规海底电缆或记忆模式下在光滑管道中持续测井操作。当流体流过破裂边界发生紊流时,井下仪传感器就会检测到高频率的超声波。不同于传统的孔内测声仪,这种新型井下检漏仪特有的复合敏感性使它在检测生产油管、套管和其他完井设备的渗漏时精确度可以小到每英寸0.02L/min。这种井下检漏仪受到远距离噪音源的干扰也比较少。杜拜石油公司利用这种技术获得的成功经验已经证实:应用于井漏检测的超声波技术可以非常精确地检测到油管和套管漏失。
Detecting the presence of a crossover in the annular space of the first or second oil cannula and the source of pressure presents a significant industry challenge. During the water injection and gas lift operations in Dubai Offshore Oil Production, a high-pressure source in the annulus of the oil casing can be pinpointed using a sonic-based logging tool. The article gives a description of the technique and an example of the history of Dubai Oil. Utilizing the unique properties of ultrasound that can propagate in different media, a downhole ultrasonic leak detector was developed. This data acquisition device has been developed to allow continuous logging operations in smooth pipelines in conventional submarine cables or memory modes. When the fluid flows through the rupture boundary turbulence occurs, the downhole sensor will detect high-frequency ultrasound. Unlike conventional in-hole sonometry, the unique composite sensitivity of this new downhole leak detector allows it to be as accurate as 0.02L / inch for detecting leaks in production tubing, casing, and other completion equipment. min. This downhole leak detector by the long-distance noise source interference is relatively small. The successful experience Dubai Corps has leveraged on this technology has confirmed that the ultrasonic technology used for lost hole detection can very accurately detect the loss of tubing and casing.