KR101746383B1 - Reactive trace monitoring system - Google Patents

Abstract

A reactive tracker monitoring system capable of simultaneously monitoring the quality of feed water (tracer solution) at the bottom of a single packer. The reactive tracker monitoring system includes a single packer, a water level / water quality measurement sensor and a connection member. The single packer is inserted into the injection well intubated in the ground and the first hole and the second hole penetrating parallel to the longitudinal direction of the injection well are formed. The water level / water quality sensor is placed under a single packer to measure the level of groundwater, the concentration of groundwater and diluted reactive trackers, and the on-site water quality factor. The connecting member is configured to be waterproofed so as to prevent groundwater from flowing into the single packer while penetrating the inside of the single packer, and provides the measured value measured by the water level / water quality measuring sensor to the external monitoring device.

Description

[0001] REACTIVE TRACE MONITORING SYSTEM [

The present invention relates to a reactive tracker monitoring system, and more particularly, to a reactive tracker monitoring system capable of simultaneously monitoring the quality of feed water (tracer solution) at the bottom of a single packer.

Trace testing is often performed to determine the behavior and diffusion characteristics of solutes in the aquifer and to determine the hydraulic connectivity between points of interest.

For a typical tracer test method, the tracer solution is injected into the aquifer using a groundwater gauge, and groundwater is taken from the same gauge or other well to monitor changes in tracer concentration. In the form of tracer test, there are injection - pumping test, drift - pumping test, point dilution test using one well and natural gradient test, convergence flow test, divergent flow test and recirculation test using several wells.

On the other hand, tests using reactive tracers are performed to determine the changes in water quality and chemical composition that occur when the injected tracer travels within the aquifer and encounters other species or aquifer media.

In the case of such a reactive tracker, there is a problem that the quality of the tracer solution prepared before injection may vary during the injection process. For example, in the case of a reactive tracer solution in which carbon dioxide is dissolved, changes in carbon dioxide concentration, pH, EC, etc. occur rapidly, so the quality of the tracer solution changes rapidly.

In addition, there is a problem in that the water quality of the injected water may be changed due to the mixing of the groundwater in the injection well in the tracer injection process.

Korean Registered Patent No. 10-0770050 (October 18, 2007) (Tracker Injection Device) Korean Patent No. 10-1617158 (May 26, 2016) (Tracker injection single packer device) Korean Patent Publication No. 2010-0092740 (2010. 08. 23.) (Instantaneous injection device and injection method for tracer for underground water) Korean Registered Patent No. 10-0607458 (July 25, 2006) (Field Tracker Test Apparatus)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a water level / water quality measurement sensor at the bottom of a single packer inserted in an injection well and to connect the water level / Which can measure the concentration of the tracer and the water quality factor in the pipeline in a real-time manner by constructing the cable to be waterproof while penetrating the inside of the single packer.

In order to realize the object of the present invention, the reactive tracker monitoring system according to an embodiment includes a single packer, a water level / water quality measuring sensor, a connecting member, and an injection / pumping pipe. Wherein the single packer is inserted into an injection well intubated in the ground and closely attached to the inner surface of the injection well to isolate the inner space of the injection well and the aquifer, Holes are formed. The water level / water quality measurement sensor is disposed in the aquifer under the single packer to measure the level of the groundwater, the concentration of the groundwater and the diluted reactive tracker, and the water quality factor of the site. The connecting member is configured to be waterproofed so as to prevent groundwater from flowing into the single packer while penetrating the inside of the single packer, and provides the measured value measured by the water level / water quality measuring sensor to an external monitoring device. The infusion / pumpless tubing is injected into the infusion well and injects under the single packer a reactive tracer solution contained in the storage tank, which is disposed to protrude below the single packer through the first hole of the single packer. The connecting member is connected to the water level / water quality measurement sensor through the second hole of the single packer. Wherein the connecting member comprises: a penetrating cable passing through the second hole formed in the single packer; A sensor cable connected to the water level / water quality measurement sensor and a lower cable connector disposed below the single packer for connecting the penetrating cable; And an upper cable connection disposed on top of the single packer to connect the sensor cable and a cable connected to the monitoring device.

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In one embodiment, a reactive tracker monitoring system comprises: an injection connection tube connected between the storage tank and the infusion / pumped water pipe and arranged for injection of the reactive tracker solution; An injection pump connected to the injection connection pipe for injecting the tracer solution in the storage tank into the injection / pumping water pipe; An injection flow meter connected to the injection connection pipe and measuring a flow rate of the tracer solution flowing through the injection connection pipe; And an injection valve connected to the injection connection pipe to control a flow rate of the tracer solution flowing through the injection connection pipe.

In one embodiment, the reactive tracker monitoring system comprises: a positive connection pipe connected to the infusion / pumped tubing and arranged for positive function of the reactive tracker solution; An infusion pump connected to the positive connection pipe for pumping groundwater diffused by the reactive tracer through the infusion / pumping pipe; An injection flow meter connected to the positive connection pipe and measuring a flow rate of the groundwater that is diffused by the reactive tracer flowing through the positive connection pipe; And a positive valve connected to the positive connection pipe for controlling the flow rate of the groundwater diffused by the reactive tracker flowing through the positive connection pipe.

According to this reactive tracker monitoring system, a water level / water quality measurement sensor is disposed under a single packer inserted in the injection well, and a cable connecting the water level / water quality measurement sensor and an external monitoring device is waterproofed through a single packer The concentration of the tracer and the field water quality factor can be measured in real time in the injection well.

FIG. 1 is a block diagram illustrating a reactive tracker monitoring system according to an embodiment of the present invention. Referring to FIG.
FIG. 2 is an enlarged view of the vicinity of the single packer shown in FIG. 1; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 1 is a block diagram illustrating a reactive tracker monitoring system according to an embodiment of the present invention. Referring to FIG. FIG. 2 is an enlarged view of the vicinity of the single packer shown in FIG. 1; FIG.

1 and 2, a reactive tracker monitoring system according to an embodiment of the present invention includes an injection well 110, a single packer 120, an injection / pumping pipe 130, a water level / water quality measurement sensor 140, The connection member 150, the injection connection pipe 160, the injection pump 162, the injection flow meter 164, the injection valve 166, the water connection pipe 170, the water pump 172, the water flow meter 174, And a pumping valve 176.

The injection well 110 is intubated in the ground.

The single packer 120 is inserted into the injection conduit 110 and the first and second holes are formed to pass through the injection conduit 110 in parallel with the longitudinal direction of the injection conduit 110. The single packer 120 is expanded in volume as compressed air is supplied to the inside of the single packer 120 and is brought into close contact with the inner surface of the injection pipe 110. As such, the single packer 120 is in close contact with the inner surface of the injection conduit 110, so that the space above the single packer 120 and the space below the single packer 120 are isolated. Accordingly, the reactive tracker discharged from the inflow / pumping line 130 can be supplied only to the space below the single packer 120 so that the reactive tracker is diffused into the aquifer in the space below the single packer 120 and mixed with the groundwater. The reactive traceer solution may be prepared by dissolving carbon dioxide or the like in a liquid that is easily dissolved in groundwater, such as chemical elements, dyes, isotopes, etc., such as chlorine and bromine.

The injection / pumping pipe 130 is disposed so as to protrude below the single packer 120 through the first hole of the single packer 120 while being intubated in the injection pipe 110, A tracer solution is injected under the single packer 120.

The water level / water quality measurement sensor 140 is disposed under the single packer 120 to measure the groundwater level in real time, and to measure the concentration of the groundwater and the diluted reactive tracker and the water quality factor in real time.

The connection member 150 is arranged to provide the measurement value measured by the water level / water quality measurement sensor 140 to an external monitoring device (not shown, indicated by a notebook computer on the drawing) 120 to be watertightly connected to the water level / water quality measuring sensor 140. The connection member 150 includes a through cable 152, a lower cable connection 154, and an upper cable connection 156.

The penetrating cable 152 passes through the second hole formed in the single packer 120.

The lower cable connection part 154 is disposed below the single packer 120 and connects the sensor cable 142 connected to the water level / water quality measurement sensor 140 and the penetrating cable 152, . Thus, groundwater below the single packer 120 is prevented from flowing into the single packer 120.

The upper cable connection part 156 is disposed on the upper part of the single packer 120 and connects the sensor cable 142 and a cable connected to the monitoring device so as to be waterproof. Thus, the groundwater on the single packer 120 is prevented from flowing into the single packer 120.

Since the cable providing the measurement value measured by the water level / water quality measurement sensor 140 to the external monitoring device is configured to be waterproof while passing through the single packer 120, The degree of contact between the outer circumferential surface of the single packer 120 and the inner circumferential surface of the injection conduit 110 is very high compared with the method of passing between the packer 120 and the injection conduit 110.

That is, when a cable connecting the water level / water quality measurement sensor 140 and an external monitoring device passes between the outer circumferential surface of the single packer 120 and the inner circumferential surface of the injection conduit 110, Can be passed over the packer (120), thereby reducing the sealing efficiency by a single packer.

However, according to the present invention, since the cable connecting the water level / water quality measurement sensor 140 and the external monitoring device passes through the single packer 120, the outer circumferential surface of the single packer 120 and the inner circumferential surface of the injection pipe 110 The sealing efficiency of the single packer 120 can be maintained.

The injection connection pipe 160 is connected between the storage tank and the injection / pumping pipe 130 and is disposed for injection of the reactive tracer. The injection pump 162 is connected to the injection connection pipe 160 to inject the tracer solution in the storage tank into the injection / pumping pipe 130. The injection flow meter 164 is connected to the injection connection pipe 160 to measure the flow rate of the tracer solution flowing through the injection connection pipe 160. The injection valve 166 is connected to the injection connection pipe 160 to control the flow rate of the tracer solution flowing through the injection connection pipe 160.

The positive connection pipe 170 is connected to the injection / pumping pipe 130 and is disposed for the positive function of the reactive tracer solution. The infusion pump 162 is connected to the positive connection pipe 170 and pumped the groundwater through which the reactive tracer is diffused through the infusion / The injection flow meter 164 is connected to the positive connection pipe 170 to measure the flow rate of the groundwater that is diffused by the reactive tracker flowing through the positive connection pipe 170. The positive water valve 176 is connected to the positive connection pipe 170 to control the flow rate of the groundwater that has been diffused by the reactive tracker flowing through the positive connection pipe 170.

As described above, it is important for the reactive tracker to measure the concentration of the tracer and the water quality factor in real time in the injection well 110 since the quality of the injection water may vary during the manufacturing process and the injection process of the tracer solution . However, if a water quality measurement sensor is installed under the single packer 120 in the tracer injection process using the single packer 120, it is inevitable that the cable passes through the outside of the single packer 120, so leakage of the injector may occur.

Thus, the present invention has developed a reactive tracker monitoring system underneath a single packer 120 that includes a waterproof cable that passes through a single packer 120.

In addition, the tracer test process requires monitoring of the injection rate and groundwater level changes, so we developed a real - time monitoring system for the injection quantity, water level, and multi - item water quality of the tracer injection water.

This reactive tracker monitoring system can be useful for real-time monitoring of the water quality change in the injection well 110 at the time of pumping in a tracer test method such as an injection-pumping test and a drift-pumping test in which an injected tracer is collected.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. You will understand.

110: Injection well 120: Single packer
130: infusion / pumping water pipe 140: water level / water quality measurement sensor
150: connecting member 152: penetrating cable
154: lower cable connection part 156: upper cable connection part
160: injection connector 162: injection pump
164: Injection flow meter 166: Injection valve
170: positive connection 172: positive displacement pump
174: positive flow meter 176: positive water valve

Claims (6)

A first hole and a second hole are formed in the injection hole and inserted into the injection hole to be in contact with the inner surface of the injection hole to insulate the inner space of the injection hole and the aquifer, Packer;
A water level / water quality measurement sensor disposed in the aquifer under the single packer to measure the level of the groundwater, the concentration of the groundwater and the diluted reactive traceer, and the water quality factor of the site;
A connecting member configured to penetrate the inside of the single packer and be waterproofed so that groundwater does not flow into the single packer, and to provide the measured value measured by the water level / water quality measuring sensor to an external monitoring device; And
And an infusion / pumping tube for introducing a reactive tracer solution contained in the storage tank under the single packer, the infusion / pumping tube being disposed so as to protrude below the single packer through the first hole of the single packer while being intro- duced in the infusion chamber,
The connecting member is connected to the water level / water quality measurement sensor through the second hole of the single packer,
Wherein the connecting member comprises: a penetrating cable passing through the second hole formed in the single packer; A sensor cable connected to the water level / water quality measurement sensor and a lower cable connector disposed below the single packer for connecting the penetrating cable; And an upper cable connection disposed on top of the single packer to connect the sensor cable and a cable connected to the monitoring device. delete delete delete The method according to claim 1,
An injection connection pipe connected between the storage tank and the injection / pumping pipe and arranged for injection of the reactive tracer solution;
An injection pump connected to the injection connection pipe for injecting the tracer solution in the storage tank into the injection / pumping water pipe;
An injection flow meter connected to the injection connection pipe and measuring a flow rate of the tracer solution flowing through the injection connection pipe; And
Further comprising an injection valve connected to the injection connection tube for controlling the flow rate of the tracer solution flowing through the injection connection tube. The method according to claim 1,
A positive connection pipe connected to the injection / pumping pipe and arranged for the positive function of the reactive tracer solution;
An infusion pump connected to the positive connection pipe for pumping groundwater diffused by the reactive tracer through the infusion / pumping pipe;
An injection flow meter connected to the positive connection pipe and measuring a flow rate of the groundwater that is diffused by the reactive tracer flowing through the positive connection pipe; And
Further comprising a positive water valve connected to the positive connection pipe for controlling the flow rate of groundwater diffused by the reactive tracker flowing through the positive connection pipe.

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