Borehole camera system

- Mar 19, 2019-

The borehole camera system is a relatively new logging technology that can intuitively monitor the technical status of downhole tubing or casing. Digital image processing technology is used to digitize downhole TV images, image segmentation and edge tracking; The imaging principle has obtained the geometrical dimensions of the physical objects in the TV image, which has achieved the quantitative interpretation of the underground TV. The practical application shows that the quantitative method is accurate and reliable, which is a further improvement of the downhole TV logging technology. Infrared thermometer Complementary to downhole imaging, plays a decisive role in logging. In actual observations, the quality of the probe determines the quality of the television image.

A method of monitoring changes in well conditions on a television screen on the ground by scanning with a television camera along a wellbore. Due to the deepening of the wells in the mining wells, the wells may be broken or the calcium plugs may be deposited for a long time due to the long-term deposition of the water pipes, which may affect the normal use of the wells and cause scrapping. Using the underground TV, you can accurately find the damage location and its causes, so that measures can be taken in time. For the bedrock holes of clean water, the lithology, fissures, joints, etc. of the borehole wall can also be observed through television; the thin layers and interlayers that are missed by drilling can also be found to supplement the core defects. Downhole TV is the same as ordinary industrial surveillance TV, except that its camera part is small in size and can be placed in the well. It has a compact illumination source and sufficient pressure and insulation properties to avoid the influence of well water pressure and humidity. Underground TV is sensitized and can only be used in clear water holes. Downhole sonic TVs are used for mud drilling.

HD high-voltage downhole color TV system observation method: Simultaneous observation of the surrounding and lower images of the well wall, so that the vertical observation of the fault image is more intuitive and accurate. It combines the observation methods of two types of underground TVs, panoramic and cloud, and is a major breakthrough in downhole image detection technology. Features: The panoramic view image has the advantages of strong spatial sense, fast detection speed and high efficiency. It also has the advantages of side view rotary observation, small distortion and high image magnification. It combines the advantages of two observation methods. A newest underground TV observation technology.

The 360-degree rotating downhole TV, the probe movement camera, rotates 360° around the circumference and rotates 180° on the pitch. The observation in the downhole is more intuitive, more detailed and more accurate. It adopts high-power lumens ultra-extra-light-cooled light source LED illumination, 5-level built-in illumination brightness adjustment, and external fill light function.

360-degree rotating underground TV color HD high-light wide-angle wide-angle camera, the arrow keys support electric and continuous motion, can be fixed to a certain position at any time, for positioning observation, flexibility, one-button AutoPan automatic scanning, support horizontal scanning back The depression angle is dynamically adjusted.

360-degree rotating downhole TV can be used to observe various features and subtle phenomena of geological bodies in boreholes, wellbores, wells, oil wells, pile foundations, such as stratum lithology, rock structure, geological structure, rock stratum, faults, fissures, mezzanines , karst crushing, etc. The conditions and faults in the well can be seen clearly in the well wall or in the bottom of the well.

360-degree rotating downhole TV from technical parameters, clarity, wide range of azimuth, solid and reasonable structure, not easy to damage, strong practical value, low price, this is unmatched by other underground TV.