The application of inflatable-packer testing is commonly used in all sorts of geotechnical investigations. During the test, a frequently ignored problem is the unforeseen occurrence of leakage around the packers, which leads to a high risk to wellbore failure as well as equipment stuck. For the conventional design, once one of the two packer subjects to leakage, the field test would have to be immediately terminated. To cope with such problem, as proposed in this study, a modification of the pneumatic control device towards a 2-in-1 inflatable-packer system accompanying with the stratified analysis of hydrostatic pressure is required. The key idea is to let each packer element to be inflated separately and individually, as such their pneumatic responses can be fed to different control valves for diverse control tasks, of which the most crucial one is the in-situ conversion between single and double packer testing mode.

充气式封隔器测试的应用通常用于各种岩土调查中。在测试过程中，一个经常被忽略的问题是在封隔器周围发生不可预料的泄漏，这导致井筒故障和设备卡死的高风险。对于常规设计，一旦两个封隔器之一泄漏，则必须立即终止现场测试。为了解决该问题，如本研究中所提出的，需要对气动控制装置进行改造，使其具有二合一充气式包装系统，并且需要对静水压力进行分层分析。关键思想是让每个封隔器元件分别单独充气，这样就可以将其气动响应馈送到不同的控制阀以完成各种控制任务，