RU2229054C2 - Method of and system for examination and diagnosing artesian wells and vertical pipelines - Google Patents

Abstract

FIELD: pipeline transport. SUBSTANCE: invention relates to pipeline transport and it can be used for examination and diagnosing artesian wells and vertical main lines arranged at angle relative to ground surface. According to proposed method waterproof video camera type VB2IC-R36 or KPC-190SW, angle of aspect 92 degrees, in sealed titanium housing and with special polished glass type K8, 15 mm thick, under which adsorbent is introduced and furnished with halogen light sources, is lowered into object under examination from top, camera moving under gravity at a speed of 0.1 m/s. Triple-core cable with double insulation is moved after video camera. Cable is provided with length marks and it is coupled with ground digital recording video camera type DCRTRV17E Sony with monitor of 3.5 inch or the like, recording of video information is accompanied by commentary through microphone. Proposed system includes waterproof video camera type VB21C-R36 or KPC-190SW, angle of aspect 92 degrees, halogen light sources, digital recording video camera type DCR-TRV17E Sony with 3.5 inch monitor or the like, reel with triple-core cable in double insulation and length marks and independent 12 V supply source. EFFECT: possibility of examination and diagnosing of artesian wells and vertical pipelines. 3 cl, 3 dwg

Description

The invention relates to pipeline transport and can be used for inspection and diagnosis of vertically located trunk pipelines, artesian wells, as well as for inspection and diagnosis of pipelines located at an angle to the surface of the earth. The author does not know the security documents that protect the method of examination and diagnosis of artesian wells and vertical pipelines. Therefore, this proposal is pioneering.

Below are the drawings characterizing the proposed method and system for its implementation:

figure 1 - system for the diagnosis of artesian wells and vertically located pipelines in a static state;

figure 2 - system for the diagnosis of artesian wells and vertically located pipelines in operation;

figure 3 - underwater video camera for the diagnosis of artesian wells and vertically located pipelines.

The system for diagnosing artesian wells and vertically located pipelines includes the following elements:

- An underwater video camera (Figs. 1-3, item 1) of type VB21C-R36 or KRS-190SW with a viewing angle of 92 degrees in a sealed titanium case and protected by 15 mm with special heavy-duty polished glass of type K8 (GOST 3514-94).

- Halogen light sources (figures 1-3, position 2) with a power of 5-10 watts.

- Recording digital video camera (figure 1, 2, item 5) type Sony DCR-TPV17E or the like.

- A drum (Fig. 1, 2, item 6) with a three-core power cable with double insulation (Fig. 1, 2, item 3), with signs of the distance traveled.

- Battery DC (Fig.1, 2, pos.4), providing power to the system voltage of 12 volts.

A water-tight video camera (Figs. 1-3, Pos. 1) with three halogen lamps attached to it (Figs. 1-3, Pos. 2) is introduced into an artesian well or a vertical pipeline under its own weight. The video camera is followed by a three-core power cable (Fig. 1, 2, item 3), unwound from the drum (Fig. 1, item 6). The power cable (Fig. 1, 2, item 3) has double insulation and length signs, which record the location of foreign objects or detected defects. A waterproof video camera (Figs. 1-3, 1) of type VB21C-R36 or KPC-190SW with a viewing angle of 92 degrees is located in a sealed titanium case. It is protected by a special high-strength glass of type K8 (GOST 3514-94) with a thickness of about 15 mm, the tensile strength of the glass in bending is about 17.0 MPa. Moisture-absorbing substance (selicogel or zeolite adsorbent) in the amount of 10-12 g is poured under the glass, which prevents fogging of the glass. The camcorder is equipped with three halogen light sources with a power of 5-10 W (figure 1, 2, position 2). The speed of the camcorder and power cable is about 0.1 m / s. As the energy source is used, an independent DC source (battery) voltage of 12 volts (figure 1, position 4).

Information moving through an artesian well or a vertical pipeline of a waterproof video camera is fed to a ground-based digital recording video camera (Fig. 1, item 5). As a recording camcorder, a Sony DCR-TRV17E camcorder with a 3.5-inch monitor or the like is used. The recording is accompanied by comments through the microphone.

The weight of all equipment used is 48 kg:

- a drum with a cable (> 120 m) (Fig. 1, 2, pos. 6) and a waterproof video camera in a pressure jacket (Figs. 1-3, pos. 1) with lamps (Figs. 1-3, pos. 2) - 29 kg

- power supply (battery) (Fig. 1, 2, item 4) - 18 kg;

- recording camera (figure 1, 2, position 5) - 0.7 kg

The video system for examining artesian wells and vertically located pipelines, as described above, includes the following elements:

1. Underwater video camera type VB21C-B36 or KPC-190SW with a viewing angle of 92 degrees in a sealed titanium case and protected by 15 mm special heavy-duty polished glass type K8 (GOST 3514-4) (figure 1, item 1).

2. Halogen light sources with a power of 5-10 watts (figure 1, position 2).

3. Recording digital camcorder type DCR-TPV17E Sony with a monitor 3.5 inches or the like (figure 1, position 5).

4. The drum with a three-core cable with double insulation, having signs of the distance traveled (figure 1, pos.6).

5. The DC battery that provides power to the system with a voltage of 12 volts (figure 1, position 4).

The total weight of the equipment is 48 kg. To implement the method and system maintenance requires 1-2 people (operators).

The method and system provide inspection of artesian wells and vertically located pipelines with a length of up to 500 m and a diameter of 100 mm. This proposal can also be used for inspection and diagnostics of pipelines located at an angle to the surface of the earth.

Example 1

In the military unit of the Tunoshna settlement, an artesian well gave little water and sand was coming from the water-lifting column, which fell into the water supply. In identifying the reasons for the drop in the flow rate of the well and sanding, this method and video inspection system for artesian wells and vertically located pipelines were applied.

In this situation, the borehole diameter was 150 mm. The wall thickness of the well string was 12 mm. In the video inspection of the artesian well, in this case, two people (the operator) performed the work. Since the weight of all equipment is very small (48 kg), this made it possible to easily deliver equipment to the test object from the vehicle in the hands due to the impossibility of access to the object in transport. According to the well, the depth was 84 m. A three-core double-insulated power cable with length marks, with a VB21C-R36 type waterproof video camera attached to it with a viewing angle of 92 degrees, with three 5-10 W halogen lamps attached to it, was unwound with drum 95 m long The connector from the drum, which is connected to the power cable, was connected to an independent 12-volt current source (battery) with a connecting cable. The video output from the drum, which is connected by a power cable to a deep waterproof camera, was connected to the video input of a Sony DCR-TRV17E digital ground recording video camera with a 3.5-inch monitor with a connecting cord.

The first operator lowers the downhole video camera into the well by the supply cable at a speed of 0.1 m / s, the second operator looks at the monitor of the ground video camera and simultaneously records video information transmitted from the deep video camera to the ground video camera, accompanying the recording with comments (depth marks, start depth marks the filter part of the well, the depth mark of the end of the filter part of the well, the depth mark of the end of the sump, the depth mark of the static water level in the well, the depth mark of the well defect and defect writing) and directs the first operator.

As a result of the video inspection, it was found that the filter part and the sump were filled with sand in the well. After cleaning the well with airlift, a second video inspection was carried out, which showed that the filter part was destroyed in the well, which led to sanding of the well and loss of flow rate. After a second video inspection, it was established at what depth the filter is located, and based on this data, an additional filter was installed.

Based on the video survey performed, in this case, an artesian well was properly repaired and new data was obtained with markings of the length of the location of the well filter and sump, which did not coincide with the passport data for the well. Thanks to this, an additional filter was correctly installed, which allowed further use of the well and restoration of flow rate, and sanding of the well.

The present invention was verified by examining more than 80 artesian wells and 50 sewage wells in the Yaroslavl region. Monitoring of the cleaning of the examined objects and elimination of defects is also carried out using the proposed method and system.

Claims (2)

1. A method for examining and diagnosing artesian wells and vertically arranged pipelines, namely, that a waterproof video camera of the type VB21C-R36 or KPC-190SW with a viewing angle of 92 ° in a sealed titanium case and with a special polished glass of type K8 15 mm thick, under which it is introduced a water-absorbing substance (adsorbent) equipped with halogen light sources is immersed in the object of examination from top to bottom under its own gravity with a speed of 0.1 m / s, a three-core cable with double insulation is advanced behind the video camera with signs of length, which provides communication with a terrestrial digital video recorder such as the DCR-TRV17E Sony with a 3.5-inch monitor or the like, the video recording being accompanied by comments through the microphone. 2. A system for examining and diagnosing artesian wells and vertically located pipelines, including a waterproof video camera type VB21C-R36 or KPC-190SW with a viewing angle of 92 °, halogen light sources, a digital recording video camera type DCR-TRV17E Sony with a 3.5-inch monitor or similar to it, a drum with a three-core cable with double insulation and signs of the distance traveled, an independent current source with a voltage of 12 V.

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