KR101628875B1 - Carbon dioxide injection system with pressure reducing mechanism for preventing leakage of carbon dioxide - Google Patents
Carbon dioxide injection system with pressure reducing mechanism for preventing leakage of carbon dioxide Download PDFInfo
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- KR101628875B1 KR101628875B1 KR1020150159062A KR20150159062A KR101628875B1 KR 101628875 B1 KR101628875 B1 KR 101628875B1 KR 1020150159062 A KR1020150159062 A KR 1020150159062A KR 20150159062 A KR20150159062 A KR 20150159062A KR 101628875 B1 KR101628875 B1 KR 101628875B1
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- carbon dioxide
- injection system
- pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/007—Underground or underwater storage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0338—Pressure regulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/013—Carbone dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0142—Applications for fluid transport or storage placed underground
- F17C2270/0144—Type of cavity
- F17C2270/0149—Type of cavity by digging cavities
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
According to the present invention, there is provided a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage, comprising: a housing constituting a first chamber and a second chamber; A top valve positioned above the first chamber of the housing; A stop valve located at a lower portion of the first chamber of the housing and located at an upper end of the second chamber; A lower valve positioned below the second chamber of the housing; An upper sealing part formed in close contact with the upper valve located above the first chamber and sealing the upper valve; And a shutoff seal formed in close contact with the shutoff valve located above the second chamber and for closing the shutoff valve, wherein for the first chamber and the second chamber of the housing, There is provided a carbon dioxide injection system in which a decompression portion for preventing carbon dioxide leakage is the same for both the upper valve, the stop valve, the lower valve, the upper seal, and the central axis of the stop seal.
Description
The present invention relates to a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage, and more particularly, to a carbon dioxide injection system in which carbon dioxide is injected into a carbon dioxide injection well after completion of underground injection of carbon dioxide, The present invention relates to a carbon dioxide injection system provided with a decompression unit for preventing the leakage of carbon dioxide which is inevitably generated when a change in the inside of the injection chamber is detected.
As a result of excessive industrialization, carbon dioxide is over-discharged globally, which leads to a long-term change in global temperature, and thus the excessive emission of carbon dioxide should be suppressed as much as possible, It is virtually impossible to stop or reduce the emission of carbon dioxide immediately in terms of economy and economy.
Various carbon dioxide storage technologies have been developed to minimize the emission of excessively discharged carbon dioxide into the atmosphere or the ocean.
Among these carbon dioxide storage technologies, the technology of storing carbon dioxide in the ground is now being demonstrated, and it is expected that it will become a universal measure for reducing carbon dioxide in the future.
On the other hand, the technology for storing carbon dioxide in the ground is almost complete in itself, but it is necessary to store additional carbon dioxide after storing the carbon dioxide in the ground, or the situation inside the carbon dioxide injection well (otherwise known as a borehole) There are cases where it is necessary to grasp the temperature, the pressure, or a change in the inside of the injection well, for example, a crack occurring in the borehole wall.
In the former case, if the underground stored carbon dioxide is stored well enough to store carbon dioxide, for example, if the underground stored carbon dioxide is chemically reacted sufficiently in the borehole so that liquid or gaseous carbon dioxide is absorbed into the ground, Carbon dioxide can be additionally stored from the outside such as the environment and economically.
In the latter case, it can be said that it is necessary to find out whether stability over a long period of time is maintained in a carbon dioxide injection pouch.
Specifically, in the case of carbon dioxide leaking near a carbon dioxide injection pit, it is necessary to determine the route through which the carbon dioxide is discharged.
In this case, when the injection of carbon dioxide is completed in the first place, the carbon dioxide injection well is normally closed and kept in a hermetically closed state, so that the sealed state must be broken in order to grasp the outflow route of carbon dioxide.
Therefore, when the sealed state is broken, when the carbon dioxide is injected at a high pressure through the inside of the injection hole, if the airtightness of the carbon dioxide injection is damaged, there is a fear that the released carbon dioxide is released to the outside at a high pressure.
Alternatively, there has been a case where a change in the state of the injection inner wall is to be grasped by using, for example, an observation camera or the like in the state in the carbon dioxide injection well.
In such a case, a conventional carbon dioxide injection defining structure will be briefly described with reference to Fig.
BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view illustrating the basic structure of a typical form of carbon dioxide injection.
1, a
A cover or
In this case, the
In the case of such a
In addition, there have been cases where a substance other than carbon dioxide has flowed into the
It is necessary to periodically grasp the situation in the soil inside the
For reference, the activity for grasping various situations inside and outside of the
As described above, when the sealing of the
Accordingly, the inventors of the present invention have made efforts to minimize the pressure and temperature changes in the carbon dioxide injection pores during the investigation and acquisition of the underground stored carbon dioxide underground storage facility, in particular, the physical log data in the carbon dioxide injection pouch. Further, A carbon dioxide injection system with a decompression unit for preventing leakage of carbon dioxide, which can prevent the outflow of the carbon dioxide, was created.
The background art relating to the present invention is described in Patent Document 1. [
SUMMARY OF THE INVENTION An object of the present invention is to minimize the pressure and temperature changes in the carbon dioxide injection pellets during investigation and acquisition of physical log data in the carbon dioxide injection pellets and to prevent carbon dioxide leaks that can actively prevent the outflow of carbon dioxide And a carbon dioxide injection system provided with a decompression unit.
The problem to be solved by the present invention is not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by a person skilled in the art from the following description.
According to a preferred embodiment of the present invention, there is provided a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage, comprising: a sealing assembly coupled to an upper end of the carbon dioxide injection system, housing; A top valve positioned at an upper portion of the housing; And a lower valve located at a lower portion of the housing, the lower valve having the same central axis as the center axis of the upper valve with respect to the chamber of the housing, wherein the decompression portion for preventing carbon dioxide leakage is provided.
Here, according to a preferred embodiment of the present invention, it is preferable that the upper valve and the lower valve are sequentially opened when the probe approaches the sealing assembly, thereby allowing entry of the probe.
According to a preferred embodiment of the present invention, the upper valve and the lower valve are preferably an iris diaphragm.
According to a preferred embodiment of the present invention, when the diameter of the sealing assembly is different from the diameter of the injection hole, it is preferable that the diameter changing adapter is further included.
According to a preferred embodiment of the present invention, an inclined surface for facilitating entry of the probe into the upper valve and the lower valve is further formed on the upper end of the opening in which the upper valve and the lower valve are formed desirable.
According to another preferred embodiment of the present invention, there is provided a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage, comprising: a housing constituting a first chamber and a second chamber; A top valve positioned above the first chamber of the housing; A stop valve located at a lower portion of the first chamber of the housing and located at an upper end of the second chamber; A lower valve positioned below the second chamber of the housing; An upper sealing part formed in close contact with the upper valve located above the first chamber and sealing the upper valve; And a shutoff seal formed in close contact with the shutoff valve located above the second chamber and for closing the shutoff valve, wherein for the first chamber and the second chamber of the housing, There is provided a carbon dioxide injection system in which a decompression portion for preventing carbon dioxide leakage is the same for both the upper valve, the stop valve, the lower valve, the upper seal, and the central axis of the stop seal.
According to another preferred embodiment of the present invention, the apparatus further comprises a lower sealing part formed in close contact with the lower valve located below the second chamber and sealing the lower valve, It is preferable that the part has the same central axis as the central axis of the upper valve, the stop valve, the lower valve, the upper seal, and the stop seal.
According to another preferred embodiment of the present invention, the upper valve, the shutoff valve, and the lower valve are sequentially opened when the probe approaches the hermetic assembly, so that the probe moves to the first chamber, , And into the injection wells.
Further, according to another preferred embodiment of the present invention, the upper sealing portion, the intermediate sealing portion, and the lower sealing portion are formed in such a manner that each of the upper valve, the stop valve, It is preferable to be more open.
According to another preferred embodiment of the present invention, the upper valve, the stop valve, and the lower valve are preferably iris diaphragm.
According to another preferred embodiment of the present invention, when the diameter of the sealing assembly is different from the diameter of the injection hole, it is preferable to further include a diameter changing adapter.
According to another preferred embodiment of the present invention, on the upper end side of the opening in which the upper valve, the stop valve, and the lower valve are formed, the probe is provided with the inlet to the upper valve, the stop valve, It is preferable to further form an inclined surface for facilitating the operation.
According to another preferred embodiment of the present invention, a temperature sensor and a pressure sensor for measuring the temperature and pressure in the first chamber and the second chamber are further provided in the first chamber and the second chamber, respectively .
According to another preferred embodiment of the present invention, when the probe approaches the first chamber of the sealing assembly, the upper valve is opened, and then the upper sealing portion is opened, so that the probe is moved into the first chamber Enter; Subsequently, the stop valve and the shutoff seal are sequentially opened so that the probe enters the second chamber; Subsequently, the lower valve and the lower closure are sequentially opened to allow the probe to enter the injection well; The lower valve and the lower closure are opened before the upper valve and the upper closure are opened to measure the temperature and the pressure in the injection chamber and the temperature and pressure of the first chamber It is preferable that the temperature and the pressure are set and the probe enters the second chamber after the temperature and the pressure of the first chamber are set to the temperature and the pressure in the injection chamber and then enters the injection chamber .
According to another preferred embodiment of the present invention, it is preferable that the first chamber and the second chamber are further provided with a heating means for setting the temperature and the pressure of the injection gas, and a pressure control device.
Specific details of other embodiments are included in the " Detailed Description of the Invention "and the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention and the manner of achieving them will be apparent by reference to various embodiments described in detail below with reference to the accompanying drawings.
However, it should be understood that the present invention is not limited to the embodiments described below, but may be embodied in various other forms. It will be understood by those of ordinary skill in the art that the foregoing description is provided to enable those of ordinary skill in the art to more fully understand the scope of the present invention and that the present invention is only defined by the scope of each claim of the claims.
According to the constitution of the present invention having the above-described configuration, it is possible to minimize the pressure and temperature changes in the carbon dioxide injection pit during the irradiation and acquisition of the physical log data in the carbon dioxide injection pit, and further prevent the outflow of carbon dioxide and the like A carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage can be provided.
BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view illustrating the basic structure of a typical form of carbon dioxide injection.
2 is a cross-sectional view showing an example of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to a preferred embodiment of the present invention.
Fig. 3 is a cross-sectional view (1) showing an example of a carbon dioxide injection system provided with a decompression section for preventing carbon dioxide leakage according to a preferred embodiment of the present invention.
4 is a cross-sectional view (2) showing an example of a carbon dioxide injection system provided with a decompression section for preventing carbon dioxide leakage according to a preferred embodiment of the present invention.
5 is a cross-sectional view showing an example of a carbon dioxide injection system provided with a decompression section for preventing carbon dioxide leakage according to another preferred embodiment of the present invention.
6 is a cross-sectional view showing an example of a carbon dioxide injection system provided with a decompression portion for preventing carbon dioxide leakage according to another preferred embodiment of the present invention.
FIG. 7 is a plan view showing an example of a valve structure of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to another preferred embodiment of the present invention shown in FIG. 6. FIG.
FIG. 8 is a plan view showing an example of a closed structure of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to another preferred embodiment of the present invention shown in FIG. 6, wherein FIG. 8 (a) FIG. 8B is a plan view showing an example of a closed state before the physical logging probe enters. FIG.
9 is a flowchart showing an example of the operation of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to another preferred embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
Before describing the present invention in detail, terms and words used herein should not be construed in an ordinary or dictionary sense and should not be interpreted unconditionally, and in order for the inventor of the present invention to explain his invention in the best way It is to be understood that the concepts of various terms can be properly defined and used, and further, these terms and words should be interpreted in terms of meaning and concept consistent with the technical idea of the present invention.
That is, the terms used herein are used only to describe preferred embodiments of the present invention, and are not intended to specifically limit the contents of the present invention, It should be noted that this is a defined term.
Also, in this specification, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise, and it should be understood that they may include singular do.
Where an element is referred to as "comprising" another element throughout this specification, the term " comprises " does not exclude any other element, It can mean that you can do it.
Further, when it is stated that an element is "inside or connected to" another element, the element may be directly connected to or in contact with the other element, A third component or means for fixing or connecting the component to another component may be present when the component is spaced apart from the first component by a predetermined distance, It should be noted that the description of the components or means of 3 may be omitted.
On the other hand, it should be understood that there is no third component or means when an element is described as being "directly connected" or "directly connected" to another element.
Likewise, other expressions that describe the relationship between the components, such as "between" and "immediately", or "neighboring to" and "directly adjacent to" .
In this specification, terms such as "one side", "other side", "one side", "other side", "first", "second" Is used to clearly distinguish one element from another element, and it should be understood that the meaning of the element is not limited by such term.
It is also to be understood that terms related to positions such as "top", "bottom", "left", "right" in this specification are used to indicate relative positions in the drawing, Unless an absolute position is specified for these positions, it should not be understood that these position-related terms refer to absolute positions.
Furthermore, in the specification of the present invention, the terms "part", "unit", "module", "device" and the like mean a unit capable of handling one or more functions or operations, Or software, or a combination of hardware and software.
In this specification, the same reference numerals are used for the respective components of the drawings to denote the same reference numerals even though they are shown in different drawings, that is, the same reference numerals throughout the specification The symbols indicate the same components.
In the drawings attached to the present specification, the size, position, coupling relationship, and the like of each constituent element of the present invention may be partially or exaggerated or omitted or omitted for the sake of clarity of description of the present invention or for convenience of explanation May be described, and therefore the proportion or scale may not be rigorous.
Further, in the following description of the present invention, a detailed description of a configuration that is considered to be unnecessarily blurring the gist of the present invention, for example, a known technology including the prior art may be omitted.
2 is a cross-sectional view showing an example of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to a preferred embodiment of the present invention.
Referring to FIG. 2, a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to a preferred embodiment of the present invention is a
That is, according to a preferred embodiment of the present invention, the
At this time, the structure of the
It should be noted that the dual installation of the
The operation of the
FIG. 3 is a cross-sectional view (1) showing an example of a carbon dioxide injection system provided with a decompression section for preventing carbon dioxide leakage according to a preferred embodiment of the present invention, and FIG. 4 is a cross- 2 is a cross-sectional view showing an example of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage.
First, referring to FIG. 3, when the
At this time, the
4, the
The
Meanwhile, the inventors of the present invention have found that insertion of the
As described above, when the
According to a preferred embodiment of the present invention, the
At this time, the iris diaphragm may have a structure shown in Fig. 7, which will be described later.
The iris diaphragm shown in Fig. 7 may be moved in the direction of narrowing the
Thus, by reducing or expanding the plurality of
According to a preferred embodiment of the present invention, when the diameter of the sealing
Since the diameter of the sealing
That is, when the diameter of the sealing
In other words, if the sealing
In this case, the diameter conversion adapter can be used when the sizes of the sealing
When the diameter conversion adapter is used as described above, the sealing
In addition, when the diameter conversion adapter is used, it is expected that the problem of difficulty in manufacturing the
When the diameter conversion adapter is used, for example, a screw groove (not shown) is formed at the upper end of the
The inventors of the present invention have further found that when the iris diaphragm is used as the
6 is a cross-sectional view showing an example of a carbon dioxide injection system provided with a decompression portion for preventing carbon dioxide leakage according to another preferred embodiment of the present invention.
Referring to FIG. 6, the carbon dioxide injection system includes a decompression unit for preventing carbon dioxide leakage. The system includes a first chamber (324 or upper chamber) and a second
6, the
At this time, the lower
Thus, when the center axes of the respective members are the same, the approach of the probe 160 (see Figs. 3 and 4) to the sealing
6, the
Thus, by sequentially opening each of the
6, the
6, the
This is because the
6, the
In this case, as described above, when the diameter of the sealing
In this case, the configuration of the diameter-changing adapter and the configuration of the sloped
6, a temperature sensor (not shown) for measuring the temperature and pressure in the
6, the
Next, a valve structure and a structure of the closed portion of the carbon dioxide injection system provided with the decompression portion for preventing carbon dioxide leakage will be described with reference to FIGS. 7 and 8, according to another preferred embodiment of the present invention.
FIG. 7 is a plan view showing an example of a valve structure of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to another preferred embodiment of the present invention shown in FIG. 6, and FIG. 8 is a cross- 8A is a plan view showing an example of a closed structure of a carbon dioxide injection system provided with a decompression unit for preventing carbon dioxide leakage according to another preferred embodiment of the present invention. FIG. 8B is a plan view showing an example of a closed state before the physical logging probe enters. FIG.
Although the
7, the
The
Although FIG. 8 illustrates only the configuration of the
8A, the
8A shows a state in which the fixing
It should be noted that FIG. 8A shows a state in which the entry of the
8B shows a state in which the
On the other hand, in FIG. 8 (b), the moving
The bold right direction arrow shown in FIG. 8B indicates that the moving
8A and 8B, since the moving
8 (a) and 8 (b), the left and right sides of the drawing may be reversed, that is, the fixing
As described above, when the fixing
Furthermore, the moving
Further, the
When the fixed
Next, an example of the operation of the carbon dioxide injection system provided with the decompression unit for preventing carbon dioxide leakage will be described with reference to the flowchart shown in FIG. 9, according to another preferred embodiment of the present invention.
9, when the
At this time, the lower
That is, it is necessary to measure the temperature and pressure of the
Next, each step shown in FIG. 9 will be described in more detail.
9, the operation of the carbon dioxide injection system provided with the decompression unit for preventing carbon dioxide leakage according to another preferred embodiment of the present invention includes opening the
At this time, in the
The heating means may have the form of enclosing both the
The pressure regulating device can function to set the pressure in the
To this end, the pressure regulating device can set the pressure in the
Then, the pressure in the
9 is to set the temperature and pressure of the
9, the opening of the
The
The temperature and pressure measurement step S300 in the
In this case, the lower
Next, the step (S400) of matching the temperature and the pressure in the
After the temperature and pressure in the
Next, opening the
Finally, the step S600 in which the
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
In addition, since the present invention can be embodied in various other forms, the present invention is not limited by the above description, and the above description is intended to be a complete description of the present invention, It will be understood by those of ordinary skill in the art that the present invention is only provided to fully inform the person skilled in the art of the scope of the present invention and that the present invention is only defined by the claims of the claims.
10: ground or underground 20: borehole
30: grouting 40: upper sealing end
50: plug 60: cover or head part
100, 200, 300: Hermetic assembly
120: housing 125: chamber
130: upper valve 140: lower valve
160: Probe 222:
225: chamber 320: housing
322: slope surface 324: first chamber (upper chamber)
325; 328:
327: second chamber (lower chamber) 330: upper valve
332: plate 334: opening
340: Stop valve 350: Lower valve
360: upper sealing part 370: stop sealing part
372: Fixing portion 374: Moving portion
376: Boundary line 378:
380: Lower sealing
Claims (15)
A sealing assembly coupled to a top of a carbon dioxide injection definition, comprising: a housing defining a chamber;
A top valve positioned at an upper portion of the housing; And
A lower valve located at a lower portion of the housing with a central axis coinciding with a center axis of the upper valve with respect to the chamber of the housing; , ≪ / RTI &
Wherein the upper valve and the lower valve are sequentially opened to allow entry of the probe when the probe approaches the sealing assembly,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Wherein the upper valve and the lower valve are an iris diaphragm,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Further comprising a diameter changing adapter if the diameter of the sealing assembly is different from the injection defining diameter.
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
And an inclined surface for facilitating entry of the probe into the upper valve and the lower valve is further formed on an upper end side of an opening in which the upper valve and the lower valve are formed,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
A sealing assembly coupled to the top of the carbon dioxide injection definition,
A housing constituting a first chamber and a second chamber;
A top valve positioned above the first chamber of the housing;
A stop valve located at a lower portion of the first chamber of the housing and located at an upper end of the second chamber;
A lower valve positioned below the second chamber of the housing;
An upper sealing part formed in close contact with the upper valve located above the first chamber and sealing the upper valve;
A stopping seal formed in close contact with the stop valve located above the second chamber, for sealing the stop valve; And
A lower sealing part formed in close contact with the lower valve located at a lower portion of the second chamber and sealing the lower valve; , ≪ / RTI &
The upper valve, the stop valve, and the lower valve are sequentially opened when the probe approaches the sealing assembly so that the probe enters the first chamber, the second chamber, and the injection well,
The upper sealing portion, the intermediate sealing portion, and the lower sealing portion are sequentially opened more sequentially as the upper valve, the stop valve, and the lower valve are sequentially opened,
Wherein the central valve of the upper valve, the stop valve, the lower valve, the upper sealing portion, the intermediate sealing portion, and the lower sealing portion are all the same, with respect to the first chamber and the second chamber of the housing,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Wherein the upper valve, the shutoff valve, and the lower valve are an iris diaphragm,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Further comprising a diameter changing adapter if the diameter of the sealing assembly is different from the injection defining diameter.
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Wherein an inclined surface for facilitating entry of the probe into the upper valve, the stop valve, and the lower valve is further formed on an upper side of the opening in which the upper valve, the stop valve,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Wherein a temperature sensor and a pressure sensor for measuring the temperature and pressure in the first chamber and the second chamber are further provided in the first chamber and the second chamber,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
When the probe approaches the first chamber of the hermetic assembly, the upper valve is opened, and then the upper seal is opened, so that the probe enters the first chamber;
Subsequently, the stop valve and the shutoff seal are sequentially opened so that the probe enters the second chamber;
Subsequently, the lower valve and the lower closure are sequentially opened to allow the probe to enter the injection well;
Opening the lower valve and the lower closure to measure the temperature and pressure in the injection chamber before the upper valve and the upper closure are opened,
Setting the temperature and the pressure of the first chamber to the same temperature and pressure as the measured temperature and the pressure,
Wherein the probe enters the second chamber after entering the temperature and pressure of the first chamber at the temperature and pressure in the chamber,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Wherein the first chamber and the second chamber are further provided with heating means for setting the temperature and the pressure of the injection definition and a pressure regulating device,
CO2 injection system with decompression unit to prevent carbon dioxide leakage.
Priority Applications (2)
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KR1020150159062A KR101628875B1 (en) | 2015-11-12 | 2015-11-12 | Carbon dioxide injection system with pressure reducing mechanism for preventing leakage of carbon dioxide |
PCT/KR2016/012394 WO2017082568A1 (en) | 2015-11-12 | 2016-10-31 | Carbon dioxide injection system having pressure-reducing unit installed therein for preventing leakage of carbon dioxide |
Applications Claiming Priority (1)
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KR1020150159062A KR101628875B1 (en) | 2015-11-12 | 2015-11-12 | Carbon dioxide injection system with pressure reducing mechanism for preventing leakage of carbon dioxide |
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KR101628875B1 true KR101628875B1 (en) | 2016-06-22 |
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KR1020150159062A KR101628875B1 (en) | 2015-11-12 | 2015-11-12 | Carbon dioxide injection system with pressure reducing mechanism for preventing leakage of carbon dioxide |
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WO (1) | WO2017082568A1 (en) |
Citations (5)
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KR100999030B1 (en) * | 2010-08-10 | 2010-12-10 | 한국지질자원연구원 | Method for detecting leakage of gas from underground gas storage by pressure monitoring and underground gas storage system |
KR101080096B1 (en) * | 2009-11-30 | 2011-11-04 | 한국지질자원연구원 | Picking apparatus of underground water or co2 and system include thereof |
KR20120063242A (en) | 2010-12-07 | 2012-06-15 | 한국지질자원연구원 | System and apparatus for measuring transmissibility of underground structure |
KR101197211B1 (en) * | 2010-11-29 | 2012-11-02 | 한국지질자원연구원 | System and method for controlling temperature of fluid for improving injectivity in stratum of supercritical carbon dioxide |
KR101460029B1 (en) * | 2013-05-02 | 2014-11-10 | 한국지질자원연구원 | Method for connectivity test between vertical formations while drilling |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US7255012B2 (en) * | 2004-12-01 | 2007-08-14 | Rosemount Inc. | Process fluid flow device with variable orifice |
JP4939522B2 (en) * | 2008-12-19 | 2012-05-30 | 大成建設株式会社 | Carbon dioxide injection well and underground injection method of carbon dioxide |
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2015
- 2015-11-12 KR KR1020150159062A patent/KR101628875B1/en active IP Right Grant
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2016
- 2016-10-31 WO PCT/KR2016/012394 patent/WO2017082568A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101080096B1 (en) * | 2009-11-30 | 2011-11-04 | 한국지질자원연구원 | Picking apparatus of underground water or co2 and system include thereof |
KR100999030B1 (en) * | 2010-08-10 | 2010-12-10 | 한국지질자원연구원 | Method for detecting leakage of gas from underground gas storage by pressure monitoring and underground gas storage system |
KR101197211B1 (en) * | 2010-11-29 | 2012-11-02 | 한국지질자원연구원 | System and method for controlling temperature of fluid for improving injectivity in stratum of supercritical carbon dioxide |
KR20120063242A (en) | 2010-12-07 | 2012-06-15 | 한국지질자원연구원 | System and apparatus for measuring transmissibility of underground structure |
KR101460029B1 (en) * | 2013-05-02 | 2014-11-10 | 한국지질자원연구원 | Method for connectivity test between vertical formations while drilling |
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