GYGD Borehole Camera is used to clearly view and accurately record the physical location of geological strata, weak/strong

boundaries, ore/waste boundaries, coal seams, top of coal, free-surface of water or ingress points, in-situ fractures, cavities, and

irregularities. This information is quite valuable to a blaster who needs to modify the loading pattern.

When 300m Borehole Well Camera GYGD Downhole Video Camera for 360degree view well surveying a borehole, the Operator can easily toggle the powered cable reel to raise or lower the camera’s position in theborehole and adjust the speed while simultaneously viewing the live colour video feed on the LCD monitor. The monitor continuously displays the total depth of the camera digitally, and can be shielded from sunlight using the monitor's outdoor viewing hood.

1. Used in engineering hydrogeology: Observing various characteristics and fine structures of geological bodies in boreholes, such as

stratum lithology, rock structure, faults, fissures, interbeds, karst, etc., and compiling geological column maps.

2. Used in mineral geology: Observing the thickness, inclination and dip of ore veins, the inclination and dip of boreholes themselves;

3. Used in coal mines and other mines: observation and quantitative analysis of the direction, thickness, tendency, dip angle of coal

seam and other orebodies, the degree of gangue inclusion in the seam and the degree of separation cracks with roof strata, etc.

4. Used in concrete: Observing the location and degree of defects such as voids, cracks and segregation in concrete;

5. Used for pipe pile: Observing all kinds of abnormalities and defects in pile, quantitatively analyzing joint quality and breakage,

fracture, length, width and direction of cracks, etc.

6. Used in underground pipelines: observe the contents of pipelines, quantitatively analyze pipeline cracks and breakage, fracture

location, length, width and trend, etc.

7. Maintenance of water wells: detection of wellbore cracks, dislocations, downhole droppings, blockage of filter holes and location of

quicksand, etc.

8. Used for hole inclination test: used for testing inclination test of boreholes, pipe piles and other measured objects.

300m Borehole Well Camera GYGD Downhole Video Camera for 360degree view well

How to Use Downhole Television to fish Water Well

1. Use downhole television technology to detect pump dropping position, upper graphics and well structure.

2. Study specific fishing plans and make special fishing tools.

3. Use professional technology, equipment and tools to fish.

4. After fish, the downhole television inspects the casing impacted by the falling water pump, and finds that the casing is damaged and

repaired.