Panoramic borehole inspection camera Application in the old well recovery

       Panoramic borehole inspection camera Application in the old well recovery

With the increase of the number of old Wells scrapped year by year, people have paid attention to the huge potential market of the old well restoration project. However, many organizations lack advanced detection methods and rely only on "intuition" and "experience" to assess in-well conditions. Despite the use of some indirect electrical logging methods, such as "resistivity method", "bore method", "sound speed method", the conclusions of these methods are often vague and uncertain. Thus, these inconclusive conclusions lead to misdiagnosis and incorrect treatment, leading to the failure of old well restoration programs. This not only wastes manpower, material resources and financial resources, but also seriously hinders the development of the old well restoration project.

Since 2001, a large number of Chinese explorers have taken the lead in applying the panoramic color TV detection system to the old well restoration project, and have tested more than 100 water source Wells in Suzhou, Huaibei, Dangshan, Xiaoxian, Taoyuan, Wolong Lake, Bozhou and other places. Practice has proved that the panoramic downhole TV detection system can intuitively and truly observe the overall panoramic situation in the water source well, which is very effective to judge the fault in the well.

Applications of Panoramic borehole inspection camera:

The instrument can be real-time shooting water well casing and casing wall damage and leakage, provide reliable basis for all kinds of hole accident treatment, improve and improve the diagnostic ability of water well problem, through the ground color monitor on the underground image shape, color and light information, can be the following observation:

▲ Well wall rupture inspection

▲ Well pipe misalignment inspection

▲ Detection of falling objects in the well

▲ Detection of clogged water filter pipes

▲ Bedrock crack detection

▲ Water well quality acceptance

▲ Qualitative understanding of geological stress conditions

Using Panoramic borehole inspection camera, can accurately, quickly, intuitively, and truly judge the abnormal situation and parts of the well wall, so as to different situations, systematically develop a set of workover scheme, supporting the necessary facilities, processing tools, so that the old well restoration project systematic. Because Panoramic borehole inspection camera can truly and intuitively reflect the overall panoramic situation in the well, it provides a real and reliable intuitive basis for the formulation of the workover scheme. Therefore, the use of Panoramic borehole inspection camera technology to detect bad Wells can reduce the cost, reduce unnecessary expenses, and save the cost of well drilling and workover for well users. For more than ten years, according to the restoration of 100 Wells, each well saving cost 10 0,000 yuan, a total of 10 million yuan, well cost saved 5 000 yuan, 50 0,000 yuan, economic benefits are very considerable.