KR20240010188A - Apparatus for installing portable geophysical well logging sonde - Google Patents

Abstract

The present invention relates to a portable physical logging equipment holder.
The portable physical logging equipment holder according to the present invention has a hollow pipe body whose lower part is inserted into the groundwater well, and a flange portion formed on the outer peripheral surface of the pipe body with a diameter larger than the groundwater well and supported on the well. The tube is formed to be long in the vertical direction and is characterized by having a support bar coupled to the insertion tube so that the upper end is disposed above the insertion tube, and a main roller rotatably coupled to the top of the support bar.

Description

Portable physical logging equipment holder {APPARATUS FOR INSTALLING PORTABLE GEOPHYSICAL WELL LOGGING SONDE}

The present invention relates to borehole physical logging technology, and in particular, to a stand on which logging equipment connected to a wire can be stably installed in an underground water well.

Physical logging is one of the borehole physical exploration methods that measures underground stratum properties and crack characteristics within a borehole. Physical logging requires a logging device called a sonde. The sonde can be inserted into a borehole to perform various sensing. For example, sonic logging is performed by emitting and receiving sound waves from the borehole wall, and neutron logging is performed by emitting and receiving neutrons. Alternatively, various types of logging, such as electrical resistivity logging and pressure logging, can be performed. Depending on the type of inspection to be performed, specific sensing equipment is used by attaching it to the sonde.

Physical inspection is also performed on groundwater wells. For example, physical inspection is attempted to diagnose the contamination status of strata connected to groundwater wells and identify the cause. One of the difficulties in performing physical logging of existing groundwater wells is that it is difficult to install logging equipment.

Figure 1 shows a previously installed groundwater well in Jeju Island.

Referring to Figure 1, an underground water well (w) is formed on the bottom, and a well protective wall (p) is installed surrounding the well (w). Although not shown in the drawing, a discharge pipe (d) capable of transporting pumped groundwater is connected through the well protective wall (p), and a cover is placed over the well protective wall. The well protection wall not only has the function of physically protecting the well, but also prevents rainwater from flowing into the groundwater well through the ground even when it rains. In the past, the method of installing groundwater wells was not established, so there were many examples of installations in the above manner.

However, when a well protection wall is installed as described above, there is a problem that it is very difficult to install physical logging equipment. As shown in Figure 1, in order to install physical logging equipment and wires (r), a triangular support must be installed to place a pulley (t) directly above the well. However, there is a problem that it is very difficult to install the triangular support (s) due to the well protection wall.

The present invention is intended to solve the above problems, and its purpose is to provide a portable physical logging equipment holder that can stably install physical logging equipment in a well surrounded by a well protection wall.

Meanwhile, other unspecified purposes of the present invention will be additionally considered within the scope that can be easily inferred from the following detailed description and its effects.

The portable physical logging equipment holder according to the present invention for achieving the above object includes a pipe body formed in a hollow shape, the lower part of which is inserted into a groundwater well, and a diameter larger than the groundwater well, formed on the outer peripheral surface of the pipe body to be inserted into the well. An insertion tube having a supported flange portion; a support rod formed to be long in the vertical direction and coupled to the insertion tube so that its upper end is disposed above the insertion tube; and a main roller rotatably coupled to the upper end of the support rod.

According to the present invention, it is preferable that the height of the support bar is adjustable in the vertical direction.

According to an example of the present invention, a well protection wall is installed at a certain height surrounding an underground water well, and further includes a connection member including a mounting device that is inserted and fixed into the well protection wall and a guide roller rotatably coupled to the mounting device. Therefore, the main roller and the guide roller are in rolling contact with the wire connected to the physical logging equipment.

In particular, the mounting port has a 'ㄷ'-shaped cross-section and is fitted with a mounting part that is inserted into the tube protection wall, a pressure plate that can reciprocate in the direction of approaching and away from the tube protection wall inside the mounting part, and is fastened to a screw hole formed in the mounting part and the pressure plate It is provided with a screw member rotatably coupled to the screw member, so that when the screw member is rotated in one direction, the pressure plate is moved in a direction approaching the tube protection wall, and when the screw member is rotated in the other direction, the pressure plate is moved in a direction away from the tube protection wall. Move it.

By using the portable physical logging equipment holder according to the present invention, there is an advantage that physical logging equipment such as a sonde can be installed very simply even when the well protection wall is installed very narrowly and high.

Meanwhile, it is to be added that even if the effects are not explicitly mentioned herein, the effects described in the following specification and their potential effects expected from the technical features of the present invention are treated as if described in the specification of the present invention.

Figure 1 shows an example of installing physical logging equipment using a tripod in a conventional groundwater well.
Figure 2 is a schematic perspective view of the insertion tube and main roller of the portable physical logging equipment holder according to an example of the present invention.
Figure 3 is a schematic perspective view of a state in which the connecting member of the portable physical logging equipment holder according to an example of the present invention is installed on the well protection wall.
Figure 4 is a schematic cross-sectional view taken along line AA of Figure 3.
Figure 5 is a schematic perspective view of a portable physical logging equipment stand installed in an underground water well according to an example of the present invention.
※ The attached drawings are intended as reference for understanding the technical idea of the present invention, and are not intended to limit the scope of the present invention.

In describing the present invention, detailed descriptions of related known functions will be omitted if they are obvious to those skilled in the art and are judged to unnecessarily obscure the gist of the present invention.

Hereinafter, with reference to the attached drawings, a portable physical logging equipment holder according to an example of the present invention will be described in more detail.

Figure 2 is a schematic perspective view of the insertion tube and main roller of the portable physical logging equipment holder according to an example of the present invention, and Figure 3 is a state in which the connecting member of the portable physical logging equipment holder according to an example of the present invention is installed on the tube protection wall. This is a schematic perspective view of .

Referring to the drawings, a portable physical logging equipment holder 100 according to an example of the present invention includes an insertion tube 10, a support rod 20, a main roller 30, and a connecting member 40.

The insertion pipe 10 includes a hollow pipe body 11 that is inserted into an underground water well (w). Since the diameter of the pipe body 11 is smaller than the diameter of the groundwater well (w), it is inserted into the groundwater well (w). And a flange portion 12 protruding along the radial direction is formed on the central outer peripheral surface of the pipe body 11. Since the flange portion 12 is formed with a larger diameter than the groundwater well (w), it cannot be inserted into the well (w) and settles on the ground. Therefore, the lower end of the insertion pipe 10 is inserted into the groundwater well (w), the upper end protrudes with respect to the ground, and the flange portion 12 is fixed to the ground to mount the insertion pipe in the groundwater well.

A support bar 20 is coupled to the flange portion 12 or the tube body 11 of the insertion tube 10. The support rod 20 is disposed long in the vertical direction, and the upper end of the support rod 20 is disposed at a higher position than the insertion tube 10. The support rod 20 may be formed to have a constant length, or its length may be variable, such as a structure in which a plurality of segments 21 to 24 overlap in multiple stages (multiple antenna structure), as in this example. It is advantageous if the length can be varied because it can be adjusted to the height of the well protection wall (p) surrounding the groundwater well (w).

A main roller 30 is rotatably coupled to the upper part of the support bar 20. A wire (r) is mounted on the main roller (30), and when the wire (r) moves, it comes into rolling contact with the main roller (r). The wire (r) is wound around a winch (not shown), and a sonde, a physical logging equipment, is installed at the end of the wire and inserted into the well (w). As the winch operates, the wire is wound and unwound, allowing the depth within the sonde well to be adjusted.

The connecting member 40 is for supporting the guide roller 50 installed between the winch and the main roller 30. As explained in the prior art, a well protection wall (p) is installed in an underground water well made a long time ago to physically protect the well and prevent surface water, including rainwater, and pollutants from flowing in. The wire released from the winch goes over the tube protection wall (p) and is mounted on the main roller (30). Since the installation height of the main roller 30 and the winch is generally lower than the tube protection wall (p), the wire (r) contacts and rubs against the top of the tube protection wall (p). Accordingly, in this example, a guide roller 50 is installed separately to allow the wire to proceed smoothly. A connecting member is provided to install the guide roller 50 on the tube protection wall (p).

Figure 4 is a schematic cross-sectional view taken along line A-A of Figure 3. Referring to Figure 4, the connecting member 40 is provided with a mounting hole 41. The mounting port 41 is provided with a mounting portion 42 having a 'ㄷ' shaped cross section. When the 'ㄷ' shape is rotated 90 degrees to the right, the mounting part 42 is opened at the bottom and can be inserted into the tube protection wall (p). And because the thickness of the tube protection wall (p) may be different, a pressure plate (43) is provided. The pressure plate 43 is disposed inside the mounting portion 42 in the form of a panel and can move back and forth in the direction of approaching and away from the tube protection wall (p). In this example, a plurality of threaded holes 44 are formed in the mounting portion 42, and the threaded member 45 is fastened to the threaded holes 44. And a coupling groove 47 in which the distal end 46 of the screw member 45 is accommodated is formed in the pressure plate 43. The distal end 46 of the screw member 45 is not physically coupled to the pressure plate or the coupling groove, and can only rotate freely because it cannot be separated from the coupling groove 47. Accordingly, when the screw member 45 is rotated in one direction, the screw member 45 pushes the pressure plate 43 and brings the pressure plate 43 closer to the tube protection wall (p). Conversely, when the screw member is rotated in the opposite direction, the distal end 46 of the screw member 45 is caught in the defective groove 47 and the pressure plate 43 is pulled in a direction away from the tube protection wall (p). By adjusting the pressure plate, the mounting hole 41 of the connecting member 40 can be firmly inserted into the tube protection wall (p) regardless of the thickness of the tube protection wall.

A guide roller 50 is rotatably coupled to the upper side of the connecting member 40. As in this example, the guide roller 50 may be composed of a large roller 51 in the center and a pair of small rollers 52 on both sides. Of course, a guide roller can be constructed with only one large roller.

By using the portable physical logging equipment holder 100 configured as described above, as shown in FIG. 5, the physical logging equipment can be easily mounted on the well even in areas where the well protection wall is installed very narrowly and high. In order to mount physical logging equipment using a tripod as in the past, a wide enough area to support the legs of the tripod must be ensured, but it was difficult to use a tripod in areas where the well protection wall was installed narrowly.

According to the present invention, the physical logging equipment can be installed very simply by simply mounting the insertion pipe in the groundwater well, and by using auxiliary connecting members and guide rollers, the physical logging equipment can be stably installed even when the distance between the winch and the well is long. It has the advantage of being installable.

The scope of protection of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is to be added once again that the scope of protection of the present invention may not be limited due to changes or substitutions that are obvious in the technical field to which the present invention pertains.

100 ... Portable physical logging equipment stand
10 ... insertion tube, 22 ... support rod
30 ... main roller, 40 ... connecting member
50 ... guide roller

Claims (4)

An insertion pipe having a hollow pipe body whose lower part is inserted into an underground water well, and a flange portion formed on the outer peripheral surface of the pipe body with a diameter larger than that of the groundwater well and supported on the well;
a support rod formed to be long in the vertical direction and coupled to the insertion tube so that its upper end is disposed above the insertion tube; and
A portable physical logging equipment holder comprising a main roller rotatably coupled to the upper end of the support bar. According to paragraph 1,
The support rod is a portable physical logging equipment holder, characterized in that the height can be adjusted in the vertical direction. According to paragraph 1,
A well protection wall is installed at a certain height surrounding the groundwater well.
It further includes a connection member having a mounting device that is inserted into and fixed to the tube protection wall and a guide roller that is rotatably coupled to the mounting device,
A portable physical logging equipment holder, characterized in that the main roller and the guide roller are in rolling contact with the wire connected to the physical logging equipment. According to paragraph 3,
The mounting port has a 'ㄷ'-shaped cross-section and is fitted with a mounting part that is inserted into the tube protection wall, a pressure plate that can reciprocate in the direction of approaching and away from the tube protection wall inside the mounting part, and is fastened to a screw hole formed in the mounting part and rotates on the pressure plate. Provided with a screw member that can be coupled,
When rotating the screw member in one direction, the pressure plate is moved in a direction approaching the well protection wall, and when rotating in the other direction, the pressure plate is moved in a direction away from the well protection wall.

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