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油田应用实例证明了地面和井下设备组合测井技术的成功,为当前水平井测井提供了一种简单可行的方法。在地面,有一个可移动的多相流量计与出油管相连,使用挠性油管将两套装置输送到井下。该项技术包括在采油井段的关键部位顺序设置封隔器。设置封隔器前后,在地面的多相流量计可以确定由封隔器隔绝部分的产量的变化。井下测井仪的传感器可以确定封隔器是否密封,并且可以实时监测井筒压力。封隔器坐封后通过延长记录时间,可以直接观测到油井产量的不稳定性。流体剖面的测量精确度不会由于井筒内含气体而降低,也不受解释的影响,并且更能反映包括分层堵水在内的井措施的效果。由于可以实时准确地计算侧向上的多相流产量,因此该项技术为水平井生产测井提供了一种有效的、可提高成本效率的替代方法。根据该技术分析与评价结果,井的作业者就能利用井场中已有的挠性油管装置对水平井段采取进一步措施。
The application examples of oilfields prove the success of combined well logging technology of surface and downhole equipment, which provides a simple and feasible method for current horizontal well logging. On the ground, there is a moveable multi-phase flow meter connected to the oil pipe, using flexible tubing to deliver the two devices downhole. The technology includes the sequential placement of packers in key sections of the production well section. Before and after the packer was installed, the multiphase flowmeter on the ground determined the change in output from the packer-insulated section. The downhole tool’s sensors determine if the packer is sealed and can monitor borehole pressure in real time. After setting the packer to extend the recording time, you can directly observe the instability of the oil well production. The accuracy of the fluid profile measurement is not compromised by the inclusion of gas in the wellbore and is not affected by interpretation, and better reflects the effectiveness of well measures including stratified plugging. This technique provides an effective and cost-effective alternative to horizontal well production logging because lateral yield can be calculated in real time and accurately. Based on the results of this technical analysis and evaluation, well operators can take advantage of the existing flexible tubing in the wellsite to take further steps on horizontal wells.